VERIFICATION TO WMO STANDARDS ---------------------------------------- JAPAN METEOROLOGICAL AGENCY APRIL 2014 ----------------------------------------------- GLOBAL SPECTRAL MODEL (TL959,L100) ---------------------------------------- TABLE 1.1 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- MEAN SEA LEVEL PRESSURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (hPa) (hPa) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 -0.02 -0.04 0.85 0.89 1.00 0.99 16.2 17.1 48 -0.08 -0.11 1.46 1.47 0.99 0.98 24.6 25.7 72 -0.14 -0.17 2.20 2.22 0.97 0.96 32.5 34.0 96 -0.23 3.18 0.92 42.9 120 -0.29 4.23 0.86 51.8 144 -0.35 5.33 0.78 60.2 168 -0.45 6.38 0.68 66.8 192 -0.51 7.12 0.60 71.3 216 -0.55 7.95 0.50 75.7 240 -0.61 8.71 0.39 79.9 264 -0.62 9.44 0.29 82.9 TABLE 1.2 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (m) (m) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 -0.34 -0.75 6.46 6.72 1.00 1.00 9.8 9.9 48 -0.25 -0.73 13.07 13.19 0.99 0.99 17.6 17.6 72 -0.34 -0.71 21.39 21.67 0.97 0.97 25.4 25.7 96 -0.88 32.32 0.94 33.8 120 -1.02 44.19 0.89 41.6 144 -1.18 57.92 0.81 49.4 168 -1.62 70.22 0.71 55.7 192 -1.67 78.59 0.64 59.5 216 -1.79 87.39 0.55 63.3 240 -1.78 96.59 0.46 67.1 264 -1.51 105.78 0.35 70.2 TABLE 1.3 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (m) (m) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 -1.09 -1.50 9.29 9.62 1.00 1.00 8.4 8.5 48 -2.16 -2.64 18.12 18.23 0.99 0.99 14.3 14.4 72 -3.06 -3.42 28.33 28.92 0.98 0.98 20.4 20.6 96 -3.87 42.17 0.95 27.3 120 -3.83 57.60 0.90 34.3 144 -4.12 76.23 0.83 41.4 168 -4.83 93.58 0.74 47.5 192 -4.99 106.98 0.66 51.6 216 -4.98 119.06 0.58 55.5 240 -4.40 131.70 0.48 59.2 264 -3.70 144.68 0.38 62.5 TABLE 1.4 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.00 0.00 0.46 0.47 0.99 0.99 48 -0.03 -0.03 0.85 0.85 0.97 0.97 72 -0.06 -0.05 1.26 1.28 0.94 0.94 96 -0.07 1.74 0.89 120 -0.07 2.23 0.82 144 -0.09 2.76 0.72 168 -0.10 3.25 0.61 192 -0.12 3.58 0.53 216 -0.13 3.88 0.45 240 -0.10 4.19 0.36 264 -0.09 4.47 0.27 TABLE 1.5 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.04 -0.04 0.65 0.65 0.98 0.98 48 -0.09 -0.09 1.07 1.07 0.96 0.95 72 -0.11 -0.12 1.51 1.52 0.91 0.91 96 -0.10 1.98 0.84 120 -0.06 2.43 0.76 144 -0.04 2.87 0.66 168 -0.02 3.23 0.57 192 0.02 3.43 0.52 216 0.05 3.71 0.44 240 0.06 4.02 0.34 264 0.09 4.18 0.29 TABLE 1.6 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.05 -0.04 2.14 2.18 48 -0.11 -0.11 3.81 3.82 72 -0.13 -0.16 5.50 5.54 96 -0.17 7.30 120 -0.14 9.09 144 -0.14 11.00 168 -0.15 12.55 192 -0.18 13.52 216 -0.16 14.57 240 -0.09 15.66 264 -0.06 16.55 TABLE 1.7 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90N) ---------------------------------------------------------- 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.11 -0.10 3.43 3.44 48 -0.21 -0.20 5.60 5.53 72 -0.25 -0.24 7.66 7.66 96 -0.23 10.01 120 -0.17 12.46 144 -0.20 15.13 168 -0.33 17.50 192 -0.35 19.47 216 -0.37 21.22 240 -0.36 22.89 264 -0.42 24.39 TABLE 2.1 TROPICS VERIFICATION AGAINST ANALYSIS (20N-20S) ---------------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (m) (m) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 -0.08 -0.03 3.15 3.02 0.97 0.97 28.4 27.4 48 0.01 0.02 4.67 4.43 0.93 0.94 37.4 35.7 72 0.21 0.22 5.46 5.27 0.90 0.91 42.1 40.6 96 0.53 5.75 0.90 43.6 120 0.93 6.58 0.87 46.4 144 1.21 7.38 0.84 48.9 168 1.50 8.16 0.82 51.0 192 1.53 8.81 0.80 52.9 216 1.58 9.43 0.76 54.8 240 1.84 10.04 0.73 56.4 264 1.60 10.65 0.69 57.8 TABLE 2.2 TROPICS VERIFICATION AGAINST ANALYSIS (20N-20S) ---------------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (m) (m) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 0.66 0.34 4.86 4.77 0.98 0.98 19.5 19.6 48 -1.23 -1.42 7.57 7.51 0.96 0.96 27.3 27.0 72 -2.43 -2.63 9.77 10.00 0.93 0.93 32.2 32.3 96 -3.60 11.77 0.90 36.3 120 -3.89 13.56 0.86 39.9 144 -4.09 15.76 0.82 43.5 168 -4.23 17.84 0.76 47.0 192 -4.26 19.73 0.70 50.3 216 -4.59 21.57 0.64 53.7 240 -4.61 23.49 0.56 57.5 264 -5.30 25.25 0.50 60.5 TABLE 2.3 TROPICS VERIFICATION AGAINST ANALYSIS (20N-20S) ---------------------------------------------------------- 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.05 -0.05 0.42 0.43 0.96 0.96 48 -0.05 -0.05 0.69 0.69 0.88 0.90 72 -0.06 -0.07 0.83 0.84 0.82 0.85 96 -0.09 0.94 0.82 120 -0.09 1.02 0.78 144 -0.11 1.10 0.75 168 -0.13 1.18 0.71 192 -0.14 1.27 0.66 216 -0.15 1.34 0.63 240 -0.14 1.39 0.59 264 -0.14 1.46 0.55 TABLE 2.4 TROPICS VERIFICATION AGAINST ANALYSIS (20N-20S) ---------------------------------------------------------- 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.02 0.00 0.39 0.38 0.91 0.91 48 -0.05 -0.07 0.57 0.55 0.81 0.82 72 -0.09 -0.12 0.68 0.67 0.73 0.73 96 -0.16 0.74 0.66 120 -0.19 0.80 0.61 144 -0.22 0.87 0.55 168 -0.24 0.93 0.49 192 -0.26 0.98 0.44 216 -0.28 1.03 0.39 240 -0.30 1.06 0.35 264 -0.32 1.10 0.31 TABLE 2.5 TROPICS VERIFICATION AGAINST ANALYSIS (20N-20S) ---------------------------------------------------------- 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.20 -0.22 1.42 1.39 48 -0.34 -0.34 2.08 2.04 72 -0.43 -0.43 2.53 2.50 96 -0.49 2.82 120 -0.52 3.11 144 -0.52 3.39 168 -0.51 3.61 192 -0.48 3.83 216 -0.49 4.04 240 -0.49 4.22 264 -0.48 4.39 TABLE 2.6 TROPICS VERIFICATION AGAINST ANALYSIS (20N-20S) ---------------------------------------------------------- 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.40 -0.45 3.13 3.12 48 -0.77 -0.81 4.68 4.63 72 -1.01 -1.04 5.78 5.74 96 -1.23 6.64 120 -1.39 7.42 144 -1.53 8.13 168 -1.69 8.74 192 -1.81 9.39 216 -1.97 10.07 240 -2.14 10.79 264 -2.21 11.48 TABLE 3.1 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- MEAN SEA LEVEL PRESSURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (hPa) (hPa) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 -0.01 0.01 0.91 0.90 0.99 0.99 12.3 12.2 48 -0.04 -0.01 1.83 1.84 0.98 0.98 22.1 22.0 72 -0.07 -0.04 2.90 2.94 0.95 0.95 31.0 31.1 96 -0.06 4.15 0.89 39.3 120 -0.06 5.43 0.82 46.6 144 -0.04 6.87 0.72 53.9 168 -0.01 7.84 0.63 58.8 192 0.04 8.56 0.56 62.1 216 0.07 9.42 0.47 64.7 240 0.08 10.23 0.38 67.2 264 0.08 10.66 0.32 69.1 TABLE 3.2 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (m) (m) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 0.39 0.40 7.95 7.93 1.00 1.00 9.6 9.7 48 0.36 0.43 16.81 16.89 0.99 0.99 17.9 18.0 72 0.28 0.32 27.69 28.32 0.96 0.96 25.9 26.2 96 0.28 41.16 0.91 33.9 120 0.16 56.13 0.84 41.6 144 0.15 72.77 0.74 49.0 168 0.17 86.03 0.64 54.7 192 0.34 95.00 0.56 57.8 216 0.28 104.67 0.47 60.5 240 0.56 114.99 0.35 64.1 264 0.76 123.25 0.25 66.9 TABLE 3.3 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. SKILL SCORE PERIOD (m) (m) -------------- -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ ------ ------ 24 0.12 0.14 10.53 10.51 1.00 1.00 8.2 8.3 48 -0.58 -0.43 21.33 21.49 0.99 0.99 14.6 14.6 72 -1.38 -1.08 34.67 35.30 0.97 0.97 21.3 21.5 96 -1.67 52.33 0.93 28.6 120 -2.13 72.35 0.86 35.9 144 -2.43 94.98 0.76 43.1 168 -2.97 114.27 0.65 49.0 192 -3.39 126.46 0.57 52.1 216 -3.14 138.65 0.49 54.7 240 -1.94 153.03 0.38 58.7 264 -1.64 165.50 0.26 61.7 TABLE 3.4 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.01 0.00 0.50 0.51 0.99 0.99 48 -0.01 -0.01 0.96 0.98 0.97 0.97 72 -0.03 -0.02 1.46 1.47 0.92 0.92 96 -0.03 1.99 0.86 120 -0.05 2.55 0.76 144 -0.07 3.13 0.65 168 -0.09 3.57 0.53 192 -0.11 3.81 0.47 216 -0.12 4.05 0.41 240 -0.10 4.37 0.31 264 -0.09 4.73 0.19 TABLE 3.5 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE ANOM. CORR. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.02 -0.02 0.61 0.62 0.98 0.98 48 -0.08 -0.07 1.11 1.12 0.95 0.95 72 -0.13 -0.11 1.64 1.66 0.89 0.88 96 -0.13 2.17 0.80 120 -0.15 2.67 0.70 144 -0.18 3.10 0.59 168 -0.22 3.46 0.48 192 -0.23 3.64 0.42 216 -0.22 3.83 0.36 240 -0.19 4.08 0.28 264 -0.20 4.28 0.22 TABLE 3.6 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.07 -0.10 2.23 2.26 48 -0.15 -0.17 4.20 4.26 72 -0.21 -0.24 6.11 6.23 96 -0.33 8.14 120 -0.40 10.19 144 -0.46 12.23 168 -0.45 13.83 192 -0.48 14.75 216 -0.39 15.51 240 -0.37 16.51 264 -0.44 17.30 TABLE 3.7 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSIS (20-90S) ---------------------------------------------------------- 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.10 -0.09 3.22 3.25 48 -0.22 -0.21 5.69 5.72 72 -0.34 -0.29 8.15 8.24 96 -0.36 10.98 120 -0.43 14.02 144 -0.50 17.17 168 -0.59 19.71 192 -0.59 21.10 216 -0.48 22.19 240 -0.46 23.96 264 -0.53 25.33 TABLE 4.1 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -2.53 -2.53 8.33 8.69 0.99 0.99 48 -4.08 -3.70 11.46 11.48 0.99 0.99 72 -2.63 -3.13 15.61 15.73 0.97 0.97 96 -0.40 22.41 0.94 120 0.11 31.11 0.91 144 -1.69 40.14 0.85 168 -5.75 49.00 0.79 192 -7.34 57.61 0.75 216 -8.09 63.57 0.68 240 -9.66 66.92 0.63 264 -6.64 70.09 0.64 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 83 12 UTC = 87 --------------------------------------------------------- TABLE 4.2 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -7.92 -8.19 12.55 12.56 0.99 0.99 48 -9.43 -9.63 17.18 17.39 0.99 0.99 72 -8.03 -9.29 22.91 23.38 0.97 0.97 96 -5.91 31.16 0.95 120 -4.91 44.76 0.92 144 -7.23 60.77 0.87 168 -10.36 73.79 0.79 192 -9.79 85.95 0.76 216 -12.24 96.41 0.71 240 -16.24 110.04 0.62 264 -8.74 112.05 0.60 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 89 12 UTC = 93 --------------------------------------------------------- TABLE 4.3 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -9.88 -10.60 17.42 16.99 0.99 0.99 48 -13.08 -14.19 25.32 25.75 0.99 0.99 72 -13.55 -15.71 33.86 34.28 0.97 0.97 96 -13.15 44.55 0.95 120 -12.36 64.23 0.92 144 -15.46 85.26 0.88 168 -19.03 107.56 0.79 192 -19.39 127.02 0.74 216 -23.54 139.26 0.71 240 -30.58 158.68 0.63 264 -21.89 163.19 0.60 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 90 12 UTC = 94 --------------------------------------------------------- TABLE 4.4 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.58 -0.77 1.72 1.96 0.93 0.93 48 -0.46 -0.67 1.81 2.06 0.94 0.94 72 -0.31 -0.59 2.12 2.34 0.92 0.92 96 -0.57 2.73 0.90 120 -0.52 3.24 0.88 144 -0.51 3.90 0.84 168 -0.44 4.44 0.76 192 -0.24 5.28 0.72 216 -0.44 5.80 0.70 240 -0.42 6.20 0.60 264 -0.02 6.34 0.56 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 83 12 UTC = 86 --------------------------------------------------------- TABLE 4.5 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.04 -0.05 0.92 0.93 0.96 0.95 48 -0.08 -0.10 1.13 1.18 0.96 0.96 72 -0.15 -0.20 1.45 1.47 0.93 0.92 96 -0.19 1.86 0.90 120 -0.22 2.48 0.86 144 -0.30 3.03 0.82 168 -0.26 3.55 0.73 192 -0.23 4.11 0.69 216 -0.36 4.46 0.64 240 -0.55 4.91 0.58 264 -0.34 4.91 0.57 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 90 12 UTC = 95 --------------------------------------------------------- TABLE 4.6 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.16 0.12 1.14 1.12 0.93 0.93 48 0.09 0.05 1.42 1.39 0.92 0.93 72 0.03 0.01 1.73 1.72 0.89 0.89 96 -0.03 2.01 0.86 120 0.02 2.40 0.81 144 0.05 2.90 0.75 168 0.04 3.30 0.67 192 0.08 3.56 0.66 216 0.22 3.94 0.59 240 0.07 4.36 0.48 264 -0.04 4.42 0.53 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 90 12 UTC = 95 --------------------------------------------------------- TABLE 4.7 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.54 -0.87 4.12 4.24 48 -0.62 -0.90 4.53 4.66 72 -0.75 -0.93 5.37 5.33 96 -0.94 6.34 120 -0.94 7.70 144 -1.16 9.03 168 -1.07 10.13 192 -1.00 11.53 216 -1.29 12.35 240 -1.17 13.18 264 -0.91 13.11 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 80 12 UTC = 83 --------------------------------------------------------- TABLE 4.8 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.72 -0.58 4.54 4.51 48 -0.81 -0.72 5.45 5.39 72 -0.83 -0.75 6.75 6.60 96 -0.92 8.08 120 -0.79 10.05 144 -0.85 12.39 168 -1.10 14.23 192 -1.12 15.71 216 -0.98 17.43 240 -1.27 18.62 264 -1.46 19.21 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 88 12 UTC = 92 --------------------------------------------------------- TABLE 4.9 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.78 -0.81 6.11 5.93 48 -0.89 -1.06 8.04 7.69 72 -0.95 -1.07 9.58 9.32 96 -1.06 11.48 120 -0.92 14.96 144 -0.85 18.15 168 -1.03 21.90 192 -1.11 24.57 216 -1.36 27.19 240 -1.84 28.72 264 -2.13 29.88 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 88 12 UTC = 92 --------------------------------------------------------- TABLE 5.1 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -6.28 -6.54 9.52 9.80 0.97 0.98 48 -6.65 -9.84 12.09 13.83 0.98 0.98 72 -8.95 -11.88 17.11 19.05 0.95 0.95 96 -14.86 25.15 0.93 120 -18.71 32.98 0.86 144 -25.79 45.55 0.77 168 -30.70 51.88 0.77 192 -28.02 52.91 0.79 216 -23.40 55.04 0.79 240 -20.71 62.35 0.70 264 -22.50 71.23 0.67 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 65 12 UTC = 61 --------------------------------------------------------- TABLE 5.2 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -11.19 -10.48 14.52 13.72 0.98 0.98 48 -11.70 -14.43 17.95 19.99 0.98 0.98 72 -14.13 -16.57 26.01 28.27 0.96 0.96 96 -20.73 36.84 0.94 120 -23.28 47.64 0.87 144 -28.53 65.57 0.76 168 -33.49 79.60 0.76 192 -32.51 85.69 0.78 216 -30.70 88.23 0.80 240 -25.86 97.82 0.73 264 -29.85 110.43 0.69 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 65 12 UTC = 60 --------------------------------------------------------- TABLE 5.3 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -15.14 -13.39 19.58 18.27 0.98 0.98 48 -17.86 -19.76 25.85 26.91 0.98 0.98 72 -21.17 -23.66 35.20 37.74 0.96 0.96 96 -28.96 49.13 0.94 120 -30.10 62.44 0.89 144 -34.55 86.19 0.78 168 -40.59 105.43 0.76 192 -41.20 117.43 0.76 216 -41.83 122.10 0.77 240 -34.72 134.18 0.71 264 -39.31 150.80 0.65 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 65 12 UTC = 61 --------------------------------------------------------- TABLE 5.4 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.66 -0.33 1.30 1.11 0.90 0.89 48 -0.66 -0.39 1.41 1.26 0.92 0.92 72 -0.62 -0.38 1.63 1.53 0.90 0.91 96 -0.33 1.79 0.87 120 -0.28 2.16 0.83 144 -0.09 2.76 0.74 168 -0.08 3.13 0.74 192 -0.15 3.51 0.73 216 -0.30 3.70 0.74 240 -0.24 4.00 0.72 264 -0.15 4.32 0.69 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 66 12 UTC = 62 --------------------------------------------------------- TABLE 5.5 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.13 -0.14 0.80 0.75 0.93 0.94 48 -0.20 -0.20 0.98 1.00 0.94 0.94 72 -0.22 -0.23 1.32 1.36 0.91 0.91 96 -0.33 1.67 0.88 120 -0.18 2.02 0.84 144 -0.17 2.60 0.75 168 -0.25 3.13 0.70 192 -0.39 3.32 0.71 216 -0.59 3.48 0.71 240 -0.43 3.84 0.65 264 -0.62 4.11 0.60 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 67 12 UTC = 61 --------------------------------------------------------- TABLE 5.6 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.36 0.40 1.17 1.18 0.92 0.93 48 0.33 0.40 1.43 1.49 0.92 0.92 72 0.28 0.31 1.78 1.96 0.88 0.87 96 0.25 2.35 0.83 120 0.16 2.63 0.79 144 0.26 3.22 0.72 168 0.43 3.71 0.66 192 0.51 3.82 0.67 216 0.53 4.02 0.67 240 0.40 4.25 0.63 264 0.65 4.36 0.60 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 66 12 UTC = 61 --------------------------------------------------------- TABLE 5.7 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.74 -0.56 3.73 3.68 48 -0.75 -0.60 4.21 4.02 72 -0.76 -0.51 4.88 4.70 96 -0.43 5.59 120 -0.36 6.44 144 -0.07 7.69 168 0.08 8.35 192 0.01 8.51 216 -0.16 9.09 240 -0.05 9.92 264 0.09 10.58 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 65 12 UTC = 62 --------------------------------------------------------- TABLE 5.8 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.50 -0.44 4.07 3.94 48 -0.60 -0.45 4.95 4.82 72 -0.48 -0.49 6.56 6.52 96 -0.39 8.20 120 -0.12 9.76 144 -0.02 12.38 168 -0.04 13.89 192 0.00 14.36 216 -0.15 14.85 240 0.06 16.09 264 0.25 17.61 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 66 12 UTC = 62 --------------------------------------------------------- TABLE 5.9 EUROPE/NORTH AFRICA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.66 -0.60 5.25 4.93 48 -0.77 -0.70 6.62 6.32 72 -0.53 -0.70 8.45 8.43 96 -0.60 11.04 120 -0.27 13.44 144 -0.33 17.15 168 -0.56 19.23 192 0.14 20.84 216 0.16 21.85 240 0.33 23.54 264 -0.12 25.61 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 65 12 UTC = 61 --------------------------------------------------------- TABLE 6.1 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 2.19 1.85 12.83 10.78 0.97 0.96 48 0.77 1.12 14.99 12.56 0.97 0.97 72 -0.98 0.39 17.54 15.81 0.97 0.96 96 -0.90 20.52 0.94 120 -1.93 25.63 0.89 144 -3.16 32.34 0.84 168 -2.89 37.01 0.79 192 -3.00 39.04 0.81 216 -4.99 43.77 0.75 240 -7.87 49.70 0.66 264 -12.26 56.76 0.59 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 98 12 UTC = 99 --------------------------------------------------------- TABLE 6.2 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -1.51 -1.65 11.96 12.85 0.98 0.97 48 -2.11 -1.61 16.01 16.08 0.98 0.98 72 -3.11 -1.46 20.80 21.40 0.97 0.97 96 -1.81 28.00 0.95 120 -2.09 35.80 0.91 144 -3.53 44.10 0.87 168 -2.73 51.03 0.85 192 -2.32 57.80 0.84 216 -3.56 64.50 0.80 240 -5.90 72.28 0.72 264 -10.21 79.34 0.68 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 109 12 UTC = 109 --------------------------------------------------------- TABLE 6.3 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -5.64 -4.61 19.80 20.03 0.97 0.97 48 -6.33 -3.94 25.60 25.85 0.97 0.97 72 -6.81 -2.79 31.64 32.73 0.97 0.97 96 -2.32 42.41 0.95 120 -3.15 51.81 0.93 144 -5.48 63.60 0.89 168 -4.53 73.71 0.87 192 -2.97 85.10 0.85 216 -2.80 94.83 0.81 240 -3.08 104.20 0.76 264 -6.85 116.11 0.73 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 108 12 UTC = 108 --------------------------------------------------------- TABLE 6.4 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.91 -0.99 2.20 2.19 0.91 0.92 48 -0.88 -0.93 2.38 2.38 0.93 0.93 72 -0.82 -0.87 2.55 2.54 0.94 0.93 96 -0.75 2.78 0.92 120 -0.68 3.12 0.88 144 -0.66 3.64 0.80 168 -0.56 4.04 0.78 192 -0.46 4.33 0.79 216 -0.43 4.56 0.75 240 -0.42 5.01 0.68 264 -0.35 5.56 0.59 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 124 12 UTC = 124 --------------------------------------------------------- TABLE 6.5 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.09 -0.04 1.02 1.05 0.93 0.93 48 -0.09 -0.03 1.26 1.29 0.94 0.94 72 -0.09 -0.01 1.57 1.58 0.93 0.94 96 0.02 1.94 0.92 120 -0.03 2.24 0.89 144 -0.03 2.68 0.85 168 -0.02 3.03 0.81 192 0.00 3.27 0.80 216 0.02 3.57 0.75 240 -0.05 3.92 0.71 264 -0.17 4.29 0.65 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 142 12 UTC = 141 --------------------------------------------------------- TABLE 6.6 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.10 0.09 1.29 1.24 0.90 0.90 48 0.08 0.12 1.54 1.51 0.90 0.89 72 0.12 0.20 1.79 1.78 0.88 0.88 96 0.29 2.05 0.84 120 0.40 2.38 0.80 144 0.40 2.70 0.73 168 0.44 2.94 0.69 192 0.58 3.20 0.69 216 0.61 3.38 0.66 240 0.70 3.59 0.64 264 0.81 3.70 0.64 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 140 12 UTC = 139 --------------------------------------------------------- TABLE 6.7 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.65 -0.68 4.02 3.89 48 -0.59 -0.56 4.56 4.36 72 -0.63 -0.59 5.13 4.92 96 -0.65 5.56 120 -0.70 6.41 144 -0.66 7.08 168 -0.54 7.61 192 -0.51 8.18 216 -0.36 8.80 240 -0.44 9.23 264 -0.43 9.44 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 121 12 UTC = 120 --------------------------------------------------------- TABLE 6.8 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.63 -0.38 4.43 4.61 48 -0.63 -0.50 5.58 5.57 72 -0.68 -0.62 6.68 6.71 96 -0.70 7.96 120 -0.79 9.02 144 -0.71 10.12 168 -0.80 11.17 192 -0.83 11.90 216 -0.70 13.12 240 -0.50 13.86 264 -0.58 14.41 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 138 12 UTC = 137 --------------------------------------------------------- TABLE 6.9 ASIA VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.81 -0.87 6.34 6.39 48 -1.11 -1.17 8.12 7.91 72 -1.35 -1.26 9.53 9.60 96 -1.49 11.41 120 -1.40 12.77 144 -1.16 14.73 168 -1.24 16.23 192 -1.34 17.64 216 -1.34 19.05 240 -0.89 20.76 264 -0.62 22.10 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 136 12 UTC = 135 --------------------------------------------------------- TABLE 7.1 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -3.01 -5.18 8.04 8.89 0.95 0.98 48 -3.76 -4.06 9.99 11.12 0.95 0.97 72 -4.01 -2.54 13.78 16.13 0.93 0.93 96 -1.49 22.19 0.87 120 -3.22 28.52 0.76 144 -2.58 37.31 0.67 168 0.54 45.04 0.61 192 1.64 51.48 0.62 216 2.41 52.41 0.59 240 -1.82 59.67 0.50 264 -2.71 61.08 0.45 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 31 12 UTC = 13 --------------------------------------------------------- TABLE 7.2 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -9.42 -12.70 13.35 16.38 0.96 0.96 48 -10.57 -12.25 16.02 18.32 0.96 0.96 72 -11.19 -11.44 20.37 24.16 0.94 0.94 96 -11.38 32.01 0.90 120 -14.08 42.53 0.82 144 -13.98 51.52 0.70 168 -10.46 56.94 0.67 192 -7.88 63.74 0.67 216 -3.70 71.26 0.57 240 -7.04 79.69 0.50 264 -11.06 83.68 0.46 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 31 12 UTC = 13 --------------------------------------------------------- TABLE 7.3 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -9.73 -13.89 15.57 19.20 0.97 0.97 48 -12.63 -14.80 21.58 23.66 0.97 0.97 72 -14.89 -14.91 29.48 32.96 0.94 0.95 96 -16.18 44.89 0.90 120 -19.86 62.41 0.83 144 -20.84 70.34 0.80 168 -17.63 82.30 0.72 192 -11.84 85.35 0.71 216 -5.16 102.54 0.60 240 -5.96 111.51 0.57 264 -10.55 115.07 0.54 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 31 12 UTC = 12 --------------------------------------------------------- TABLE 7.4 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.10 -0.36 1.13 1.14 0.85 0.89 48 0.06 -0.29 1.29 1.37 0.88 0.89 72 0.16 -0.24 1.49 1.55 0.86 0.90 96 -0.24 1.84 0.84 120 -0.24 2.30 0.75 144 -0.32 2.84 0.66 168 -0.12 3.15 0.58 192 -0.20 3.59 0.50 216 0.10 3.57 0.50 240 -0.04 3.63 0.60 264 -0.14 3.43 0.53 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 31 12 UTC = 12 --------------------------------------------------------- TABLE 7.5 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.10 -0.12 0.81 0.88 0.87 0.89 48 -0.17 -0.20 0.97 1.05 0.89 0.86 72 -0.25 -0.23 1.14 1.28 0.88 0.88 96 -0.30 1.59 0.79 120 -0.40 2.00 0.73 144 -0.37 2.17 0.73 168 -0.40 2.53 0.65 192 -0.23 2.69 0.58 216 -0.11 3.05 0.51 240 0.06 2.89 0.53 264 -0.17 2.96 0.44 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 31 12 UTC = 13 --------------------------------------------------------- TABLE 7.6 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.21 0.18 0.87 0.92 0.87 0.86 48 0.10 0.06 1.05 1.09 0.88 0.88 72 -0.02 0.00 1.31 1.40 0.86 0.86 96 -0.09 1.62 0.82 120 -0.11 1.89 0.80 144 -0.21 2.04 0.74 168 -0.10 2.48 0.60 192 0.03 2.45 0.66 216 0.15 2.82 0.55 240 0.27 3.12 0.41 264 0.63 3.10 0.43 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 31 12 UTC = 12 --------------------------------------------------------- TABLE 7.7 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.43 -0.65 3.59 3.59 48 -0.54 -0.71 4.06 4.07 72 -0.62 -0.83 4.55 4.77 96 -0.92 5.42 120 -0.95 6.17 144 -0.98 7.56 168 -0.80 8.71 192 -0.80 9.03 216 -0.57 9.20 240 -0.40 9.62 264 -0.47 9.51 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 33 12 UTC = 21 --------------------------------------------------------- TABLE 7.8 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.62 -0.62 3.92 3.86 48 -0.75 -0.71 4.70 4.56 72 -0.79 -0.67 5.69 5.80 96 -0.93 6.67 120 -1.28 7.79 144 -1.25 9.81 168 -1.24 11.24 192 -1.09 12.15 216 -1.07 12.58 240 -0.81 13.19 264 -0.98 12.84 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 33 12 UTC = 21 --------------------------------------------------------- TABLE 7.9 AUSTRALIA/NEW ZEALAND VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.65 -0.44 5.35 5.32 48 -0.78 -0.59 6.90 6.60 72 -0.68 -0.44 8.35 8.56 96 -0.63 10.15 120 -1.12 12.21 144 -1.21 14.42 168 -1.05 16.13 192 0.01 18.13 216 0.14 19.30 240 -0.36 20.48 264 -0.62 20.73 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 33 12 UTC = 21 --------------------------------------------------------- TABLE 8.1 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -2.92 -1.73 9.57 9.33 0.64 0.65 48 -3.14 -1.92 9.99 9.53 0.73 0.75 72 -3.46 -2.42 10.47 9.93 0.75 0.78 96 -2.35 10.28 0.77 120 -1.92 10.70 0.76 144 -1.26 11.26 0.73 168 -0.58 11.64 0.68 192 -0.33 11.99 0.61 216 -0.58 12.28 0.60 240 -0.25 12.69 0.60 264 -0.55 13.43 0.55 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 60 12 UTC = 64 --------------------------------------------------------- TABLE 8.2 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -10.92 -10.12 14.71 14.71 0.57 0.49 48 -12.06 -11.32 15.66 15.69 0.69 0.63 72 -13.02 -12.31 16.57 16.52 0.70 0.67 96 -12.90 17.04 0.69 120 -12.95 17.33 0.68 144 -12.75 17.53 0.69 168 -12.39 17.44 0.68 192 -12.29 17.58 0.65 216 -12.63 18.07 0.64 240 -12.47 18.60 0.61 264 -13.00 19.75 0.56 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 62 12 UTC = 66 --------------------------------------------------------- TABLE 8.3 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -8.96 -10.54 15.19 16.80 0.62 0.56 48 -11.31 -12.73 17.18 18.75 0.74 0.69 72 -12.88 -14.73 18.70 20.67 0.76 0.72 96 -16.12 22.18 0.75 120 -16.81 23.25 0.72 144 -17.05 24.65 0.71 168 -17.41 26.13 0.69 192 -17.60 26.99 0.65 216 -18.11 27.90 0.64 240 -17.76 29.03 0.62 264 -18.34 30.40 0.61 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 62 12 UTC = 66 --------------------------------------------------------- TABLE 8.4 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.39 -0.40 0.95 1.02 0.40 0.46 48 -0.39 -0.45 1.00 1.07 0.45 0.59 72 -0.43 -0.49 1.04 1.10 0.51 0.62 96 -0.52 1.13 0.65 120 -0.54 1.17 0.65 144 -0.54 1.22 0.63 168 -0.57 1.28 0.61 192 -0.57 1.36 0.58 216 -0.59 1.36 0.59 240 -0.58 1.39 0.57 264 -0.57 1.41 0.54 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 67 12 UTC = 72 --------------------------------------------------------- TABLE 8.5 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.09 0.00 0.75 0.75 0.51 0.54 48 0.06 -0.04 0.78 0.79 0.59 0.61 72 0.03 -0.08 0.80 0.84 0.60 0.64 96 -0.12 0.88 0.67 120 -0.16 0.93 0.66 144 -0.18 0.97 0.64 168 -0.19 1.03 0.62 192 -0.20 1.09 0.59 216 -0.21 1.11 0.58 240 -0.24 1.14 0.56 264 -0.26 1.18 0.56 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 69 12 UTC = 75 --------------------------------------------------------- TABLE 8.6 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.12 -0.01 0.70 0.61 0.58 0.55 48 0.06 -0.07 0.76 0.69 0.61 0.61 72 0.03 -0.10 0.82 0.78 0.61 0.60 96 -0.14 0.83 0.59 120 -0.19 0.88 0.57 144 -0.24 0.94 0.58 168 -0.30 1.02 0.57 192 -0.32 1.05 0.56 216 -0.32 1.07 0.56 240 -0.30 1.09 0.55 264 -0.31 1.10 0.57 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 68 12 UTC = 74 --------------------------------------------------------- TABLE 8.7 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.71 -0.71 3.32 3.25 48 -0.77 -0.78 3.59 3.53 72 -0.74 -0.69 3.81 3.73 96 -0.63 3.96 120 -0.62 4.21 144 -0.69 4.42 168 -0.75 4.59 192 -0.77 4.74 216 -0.80 4.91 240 -0.75 5.02 264 -0.66 5.07 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 60 12 UTC = 70 --------------------------------------------------------- TABLE 8.8 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.92 -0.74 3.67 3.55 48 -0.99 -0.86 4.06 3.88 72 -1.01 -0.88 4.38 4.20 96 -0.82 4.49 120 -0.79 4.77 144 -0.84 5.01 168 -0.86 5.27 192 -0.83 5.60 216 -0.82 5.89 240 -0.78 6.20 264 -0.70 6.53 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 61 12 UTC = 73 --------------------------------------------------------- TABLE 8.9 TROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -1.07 -0.99 4.88 4.81 48 -1.37 -1.28 5.76 5.68 72 -1.58 -1.44 6.48 6.45 96 -1.60 6.99 120 -1.62 7.58 144 -1.57 8.25 168 -1.52 8.79 192 -1.46 9.24 216 -1.53 9.67 240 -1.78 9.99 264 -1.87 10.83 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 61 12 UTC = 72 --------------------------------------------------------- TABLE 9.1 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -1.82 -2.13 10.39 10.05 0.98 0.98 48 -2.58 -3.40 13.12 12.80 0.98 0.98 72 -3.11 -3.77 17.33 17.24 0.97 0.97 96 -4.31 23.68 0.95 120 -5.56 31.19 0.92 144 -7.68 40.16 0.86 168 -9.27 48.18 0.81 192 -9.55 53.84 0.78 216 -9.62 59.44 0.73 240 -10.29 64.63 0.68 264 -11.06 70.77 0.64 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 341 12 UTC = 342 --------------------------------------------------------- TABLE 9.2 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -5.74 -5.93 12.95 13.15 0.99 0.98 48 -6.33 -7.11 17.08 17.78 0.99 0.98 72 -6.59 -7.21 24.03 24.73 0.97 0.97 96 -7.24 33.55 0.95 120 -7.94 44.86 0.92 144 -10.09 58.34 0.88 168 -11.62 71.08 0.83 192 -11.21 80.82 0.80 216 -11.71 88.43 0.76 240 -12.03 98.58 0.71 264 -11.52 106.27 0.67 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 359 12 UTC = 357 --------------------------------------------------------- TABLE 9.3 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -8.65 -8.40 18.95 18.76 0.98 0.98 48 -10.29 -10.60 24.98 25.69 0.98 0.98 72 -11.22 -11.40 33.22 34.36 0.97 0.97 96 -11.54 45.45 0.96 120 -12.12 60.04 0.93 144 -14.70 78.26 0.89 168 -16.82 96.33 0.84 192 -16.53 111.65 0.80 216 -17.43 122.01 0.77 240 -17.20 135.87 0.72 264 -15.63 146.90 0.68 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 358 12 UTC = 356 --------------------------------------------------------- TABLE 9.4 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.67 -0.65 1.79 1.81 0.93 0.93 48 -0.63 -0.62 1.94 1.97 0.94 0.94 72 -0.55 -0.57 2.16 2.20 0.93 0.93 96 -0.50 2.51 0.92 120 -0.45 2.94 0.88 144 -0.41 3.54 0.83 168 -0.37 3.99 0.78 192 -0.29 4.46 0.76 216 -0.30 4.79 0.73 240 -0.25 5.21 0.68 264 -0.08 5.55 0.63 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 375 12 UTC = 373 --------------------------------------------------------- TABLE 9.5 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.09 -0.08 0.93 0.95 0.95 0.95 48 -0.12 -0.10 1.15 1.19 0.96 0.95 72 -0.14 -0.12 1.49 1.52 0.94 0.94 96 -0.12 1.91 0.92 120 -0.13 2.35 0.88 144 -0.16 2.86 0.84 168 -0.18 3.33 0.78 192 -0.18 3.69 0.76 216 -0.23 3.99 0.72 240 -0.25 4.35 0.68 264 -0.24 4.59 0.64 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 404 12 UTC = 401 --------------------------------------------------------- TABLE 9.6 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.19 0.17 1.21 1.18 0.93 0.93 48 0.17 0.15 1.48 1.46 0.93 0.92 72 0.16 0.16 1.81 1.82 0.90 0.90 96 0.18 2.19 0.87 120 0.23 2.58 0.83 144 0.28 3.04 0.77 168 0.31 3.40 0.72 192 0.38 3.63 0.71 216 0.44 3.87 0.67 240 0.43 4.17 0.62 264 0.48 4.30 0.61 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 401 12 UTC = 398 --------------------------------------------------------- TABLE 9.7 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.65 -0.68 3.92 3.90 48 -0.65 -0.65 4.41 4.33 72 -0.70 -0.66 5.10 5.00 96 -0.67 5.83 120 -0.64 6.85 144 -0.63 7.86 168 -0.56 8.65 192 -0.56 9.43 216 -0.59 10.08 240 -0.56 10.71 264 -0.48 10.93 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 359 12 UTC = 359 --------------------------------------------------------- TABLE 9.8 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.64 -0.54 4.32 4.37 48 -0.69 -0.63 5.35 5.34 72 -0.69 -0.68 6.70 6.68 96 -0.72 8.23 120 -0.66 9.78 144 -0.65 11.57 168 -0.79 13.05 192 -0.83 14.01 216 -0.84 15.22 240 -0.80 16.20 264 -0.83 16.95 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 393 12 UTC = 391 --------------------------------------------------------- TABLE 9.9 NORTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.71 -0.69 5.68 5.61 48 -0.88 -0.90 7.34 7.09 72 -0.94 -0.92 8.93 8.86 96 -0.94 11.01 120 -0.85 13.31 144 -0.76 16.02 168 -0.96 18.35 192 -0.98 20.24 216 -1.16 22.00 240 -1.07 23.60 264 -1.13 24.93 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 389 12 UTC = 388 --------------------------------------------------------- TABLE 10.1 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -1.39 -1.40 8.76 9.87 0.97 0.97 48 -1.53 -1.27 11.41 13.23 0.96 0.97 72 -1.66 -1.02 15.86 18.12 0.94 0.94 96 -0.42 25.38 0.90 120 -1.48 33.37 0.87 144 0.31 41.71 0.80 168 0.41 44.39 0.77 192 0.79 52.37 0.69 216 0.87 58.53 0.63 240 -2.06 62.14 0.54 264 -1.05 62.87 0.49 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 42 12 UTC = 39 --------------------------------------------------------- TABLE 10.2 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -8.47 -8.38 13.26 13.80 0.97 0.97 48 -8.78 -8.51 16.58 17.92 0.97 0.98 72 -9.04 -8.28 21.66 24.12 0.95 0.96 96 -7.85 31.97 0.93 120 -8.27 44.32 0.88 144 -6.64 54.92 0.85 168 -5.99 59.93 0.80 192 -6.86 67.58 0.77 216 -4.93 80.07 0.69 240 -7.40 88.08 0.61 264 -7.66 92.20 0.51 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 43 12 UTC = 39 --------------------------------------------------------- TABLE 10.3 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA GEOPOTENTIAL HEIGHT APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (m) (m) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -10.33 -10.26 17.39 17.81 0.97 0.98 48 -12.29 -12.12 24.10 25.17 0.97 0.98 72 -14.01 -13.25 32.45 33.64 0.96 0.97 96 -13.40 44.43 0.94 120 -13.90 60.69 0.90 144 -12.54 74.36 0.86 168 -13.21 85.74 0.81 192 -14.45 91.31 0.81 216 -9.69 107.62 0.75 240 -11.12 122.21 0.65 264 -11.17 128.19 0.58 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 43 12 UTC = 39 --------------------------------------------------------- TABLE 10.4 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.33 -0.62 1.50 1.66 0.85 0.86 48 -0.22 -0.54 1.64 1.78 0.88 0.90 72 -0.12 -0.48 1.88 2.00 0.87 0.89 96 -0.46 2.26 0.87 120 -0.41 2.64 0.84 144 -0.35 3.11 0.78 168 -0.24 3.45 0.73 192 -0.29 3.78 0.69 216 -0.12 3.97 0.65 240 -0.09 4.15 0.63 264 -0.09 4.40 0.55 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 43 12 UTC = 40 --------------------------------------------------------- TABLE 10.5 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 -0.12 -0.06 0.90 0.90 0.89 0.93 48 -0.19 -0.11 1.11 1.12 0.91 0.94 72 -0.25 -0.11 1.32 1.38 0.90 0.93 96 -0.13 1.77 0.89 120 -0.12 2.18 0.83 144 -0.14 2.53 0.79 168 -0.15 2.84 0.73 192 -0.28 3.00 0.72 216 -0.16 3.32 0.67 240 -0.08 3.70 0.61 264 -0.15 3.80 0.58 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 45 12 UTC = 41 --------------------------------------------------------- TABLE 10.6 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA TEMPERATURE APRIL 2014 ------------------------------------------------ FORECAST MEAN ERROR RMSE trend corr. PERIOD (K) (K) -------------- -------- 00 UTC 12 UTC 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ ------ ------ 24 0.12 0.12 1.01 1.07 0.91 0.92 48 0.00 -0.01 1.29 1.37 0.91 0.92 72 -0.13 -0.11 1.59 1.73 0.89 0.88 96 -0.13 2.09 0.85 120 -0.14 2.50 0.80 144 -0.22 2.78 0.76 168 -0.22 3.00 0.70 192 -0.17 3.21 0.68 216 -0.07 3.40 0.64 240 0.00 3.67 0.61 264 0.10 3.68 0.62 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 44 12 UTC = 41 --------------------------------------------------------- TABLE 10.7 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 850 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.58 -0.63 4.11 4.20 48 -0.62 -0.66 4.58 4.66 72 -0.65 -0.66 5.13 5.21 96 -0.66 6.00 120 -0.62 6.82 144 -0.57 8.02 168 -0.55 8.69 192 -0.55 9.16 216 -0.37 9.36 240 -0.29 9.84 264 -0.34 9.92 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 45 12 UTC = 45 --------------------------------------------------------- TABLE 10.8 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 500 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.56 -0.63 4.19 4.23 48 -0.70 -0.74 4.97 5.09 72 -0.75 -0.85 6.04 6.30 96 -1.00 7.33 120 -1.10 8.84 144 -1.09 10.53 168 -1.24 11.75 192 -1.17 12.73 216 -1.01 13.37 240 -1.03 14.06 264 -1.03 14.16 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 47 12 UTC = 46 --------------------------------------------------------- TABLE 10.9 SOUTHERN EXTRATROPICS VERIFICATION AGAINST RADIOSONDES ------------------------------------------------------ 250 HPA WIND APRIL 2014 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (m/s) (m/s) -------- 00 UTC 12 UTC 00 UTC 12 UTC (HOURS) ------ ------ ------ ------ 24 -0.44 -0.58 5.36 5.47 48 -0.46 -0.69 7.00 7.01 72 -0.63 -0.82 8.52 8.79 96 -1.06 10.47 120 -1.52 12.75 144 -1.65 15.52 168 -2.03 17.29 192 -1.41 18.93 216 -1.05 20.44 240 -1.54 21.59 264 -1.46 22.13 --------------------------------------------------------- NUMBER OF OBSERVATIONS USED 00 UTC = 46 12 UTC = 46 ---------------------------------------------------------