VERIFICATION TO W.M.O. STANDARDS ---------------------------------------- N.C.E.P./U.S.A. APRIL 2012 ------------------------------------------------ GLOBAL FORECAST SYSTEM MODEL (GFS) ----------------------------------- TABLE 1.1 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- MEAN-SEA-LEVEL PRESSURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD (HPA) (HPA) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 0.0 0.0 1.0 1.0 1.0 1.0 21.9 22.8 48 0.1 0.0 1.6 1.6 1.0 1.0 30.2 30.7 72 0.1 0.1 2.3 2.4 1.0 1.0 37.9 38.7 96 0.1 0.1 3.2 3.3 0.9 0.9 46.3 47.0 120 0.2 0.1 4.3 4.3 0.9 0.9 54.7 55.9 144 0.2 0.2 5.3 5.4 0.8 0.8 61.8 62.7 168 0.3 0.2 6.3 6.4 0.8 0.8 67.8 68.8 192 0.2 0.2 7.1 7.2 0.8 0.8 72.2 73.6 216 0.3 0.2 7.9 8.0 0.7 0.7 76.5 78.0 240 0.3 0.2 8.4 8.5 0.7 0.7 79.9 81.0 TABLE 1.2 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD ( M ) ( M ) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 0.2 0.1 8.3 8.5 1.0 1.0 14.2 14.6 48 0.3 -0.3 14.9 15.2 1.0 1.0 21.1 21.5 72 0.5 0.2 23.3 23.7 1.0 1.0 28.3 28.7 96 0.8 0.7 33.8 34.2 0.9 0.9 35.7 36.1 120 1.1 0.8 46.1 46.0 0.9 0.9 42.9 43.3 144 1.4 1.3 58.6 59.0 0.9 0.9 49.3 49.6 168 1.8 1.6 70.2 71.4 0.8 0.8 54.5 55.2 192 1.5 1.3 80.4 81.6 0.8 0.8 59.1 59.4 216 0.9 1.3 89.4 91.7 0.8 0.7 62.8 63.7 240 0.6 0.9 97.5 98.0 0.7 0.7 66.1 66.7 TABLE 1.3 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD ( M ) ( M ) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 3.1 2.9 11.0 11.3 1.0 1.0 11.6 11.9 48 4.5 4.0 19.8 19.9 1.0 1.0 17.4 17.6 72 5.0 4.8 30.9 31.2 1.0 1.0 23.4 23.7 96 4.9 5.0 44.8 45.0 0.9 0.9 29.8 30.1 120 4.5 4.9 61.7 61.6 0.9 0.9 36.4 36.8 144 4.5 4.8 78.3 79.5 0.9 0.9 42.4 42.8 168 4.5 4.5 93.5 96.0 0.8 0.8 47.2 48.0 192 3.6 3.8 107.8 110.3 0.8 0.8 51.8 52.4 216 0.1 0.9 120.7 125.3 0.8 0.7 55.5 56.8 240 -1.4 -1.1 133.6 134.3 0.7 0.7 59.0 59.5 # ** NCEP/USA GFS ** TABLE 1.4 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION PERIOD (K) (K) -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ 24 0.1 0.1 0.7 0.7 1.0 1.0 48 0.1 0.1 1.0 1.0 1.0 1.0 72 0.1 0.1 1.4 1.4 0.9 0.9 96 0.1 0.1 1.9 1.9 0.9 0.9 120 0.1 0.1 2.4 2.4 0.9 0.9 144 0.1 0.1 2.8 2.9 0.8 0.8 168 0.1 0.2 3.2 3.2 0.8 0.8 192 0.1 0.1 3.6 3.6 0.8 0.8 216 0.0 0.1 3.9 4.0 0.7 0.7 240 0.0 0.0 4.2 4.3 0.7 0.7 TABLE 1.5 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION PERIOD (K) (K) -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ 24 0.0 0.0 0.8 0.9 1.0 1.0 48 0.0 0.0 1.3 1.4 0.9 0.9 72 -0.2 -0.1 1.8 1.8 0.9 0.9 96 -0.3 -0.3 2.3 2.3 0.9 0.9 120 -0.4 -0.4 2.7 2.7 0.8 0.8 144 -0.5 -0.5 3.1 3.1 0.8 0.8 168 -0.6 -0.6 3.4 3.5 0.8 0.8 192 -0.7 -0.7 3.7 3.7 0.7 0.7 216 -0.9 -0.9 3.9 3.9 0.7 0.7 240 -1.1 -1.1 4.1 4.2 0.7 0.7 TABLE 1.6 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- 500 HPA WIND APRIL 2012 ----------------------------------------------- FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.1 -0.1 3.4 3.5 48 -0.3 -0.3 4.9 5.0 72 -0.4 -0.4 6.4 6.5 96 -0.5 -0.5 8.0 8.1 120 -0.6 -0.6 9.8 9.9 144 -0.7 -0.7 11.4 11.5 168 -0.8 -0.8 12.7 12.8 192 -0.8 -0.8 13.8 13.9 216 -0.8 -0.8 14.9 15.1 240 -0.7 -0.8 15.8 15.9 # ** NCEP/USA GFS ** TABLE 1.7 NORTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (90N-20N) ----------------------------------------------------------- 250 HPA WIND APRIL 2012 ----------------------------------------------- FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.2 -0.2 4.5 4.7 48 -0.5 -0.4 6.6 6.6 72 -0.7 -0.6 8.6 8.7 96 -0.8 -0.7 10.9 11.0 120 -0.9 -0.8 13.6 13.6 144 -1.0 -0.9 16.1 16.1 168 -1.1 -1.1 17.9 18.2 192 -1.1 -1.1 19.8 20.0 216 -1.0 -1.1 21.5 21.8 240 -0.8 -1.0 23.1 23.1 TABLE 2.1 TROPICS VERIFICATION AGAINST ANALYSES (20N-20S) ----------------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD ( M ) ( M ) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 -1.1 -1.2 3.8 4.0 0.9 0.9 37.6 37.3 48 -2.0 -2.1 5.4 5.5 0.9 0.9 44.6 44.4 72 -3.0 -3.1 6.9 6.9 0.9 0.9 47.8 47.7 96 -4.1 -4.0 8.7 8.7 0.8 0.8 51.0 50.8 120 -5.3 -5.2 10.2 10.2 0.8 0.8 53.6 53.5 144 -6.2 -6.0 11.5 11.4 0.7 0.8 56.4 56.0 168 -6.8 -6.7 12.1 12.0 0.8 0.8 58.5 58.4 192 -7.2 -7.1 12.8 12.5 0.8 0.8 60.6 60.6 216 -7.9 -7.7 13.8 13.4 0.7 0.7 65.5 65.6 240 -8.3 -8.5 14.6 14.4 0.7 0.7 67.2 67.1 TABLE 2.2 TROPICS VERIFICATION AGAINST ANALYSES (20N-20S) ----------------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD ( M ) ( M ) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 2.5 2.7 6.1 6.0 0.9 0.9 29.0 29.2 48 2.4 2.9 8.8 8.9 0.9 0.9 35.6 35.7 72 1.1 1.6 10.8 10.9 0.9 0.9 39.8 39.8 96 -0.1 0.4 12.6 12.7 0.9 0.9 43.3 43.6 120 -1.2 -0.6 14.3 14.4 0.9 0.9 46.2 46.6 144 -1.9 -1.2 16.3 16.4 0.9 0.9 49.5 50.2 168 -2.7 -2.1 18.6 18.7 0.8 0.8 52.8 53.5 192 -3.6 -3.2 21.0 20.9 0.8 0.8 55.9 56.4 216 -7.2 -6.5 24.0 23.9 0.8 0.8 59.2 59.9 240 -9.7 -9.7 26.9 27.0 0.8 0.7 61.2 62.1 # ** NCEP/USA GFS ** TABLE 2.3 TROPICS VERIFICATION AGAINST ANALYSES (20N-20S) ----------------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION PERIOD (K) (K) -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ 24 0.0 0.0 0.5 0.5 0.8 0.8 48 0.0 0.0 0.7 0.7 0.8 0.8 72 -0.1 -0.1 0.8 0.8 0.8 0.8 96 -0.1 0.0 0.9 0.9 0.8 0.8 120 -0.1 -0.1 1.0 1.0 0.8 0.8 144 0.0 -0.1 1.0 1.1 0.8 0.8 168 0.0 0.0 1.1 1.1 0.7 0.7 192 0.0 0.0 1.2 1.2 0.7 0.7 216 -0.1 -0.1 1.3 1.4 0.7 0.7 240 -0.1 -0.1 1.4 1.4 0.6 0.7 TABLE 2.4 TROPICS VERIFICATION AGAINST ANALYSES (20N-20S) ----------------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION PERIOD (K) (K) -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ 24 0.2 0.2 0.5 0.5 0.8 0.8 48 0.2 0.2 0.7 0.7 0.8 0.8 72 0.1 0.1 0.8 0.8 0.8 0.8 96 0.1 0.1 0.9 0.9 0.8 0.8 120 0.1 0.1 1.0 1.0 0.7 0.7 144 0.1 0.1 1.1 1.1 0.7 0.7 168 0.1 0.1 1.1 1.1 0.7 0.7 192 0.1 0.1 1.2 1.2 0.7 0.7 216 -0.1 -0.1 1.2 1.2 0.7 0.7 240 -0.3 -0.3 1.3 1.3 0.7 0.6 TABLE 2.5 TROPICS VERIFICATION AGAINST ANALYSES (20N-20S) ----------------------------------------------------------- 850 HPA WIND APRIL 2012 ----------------------------------------------- FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.0 -0.1 1.8 1.8 48 -0.1 -0.1 2.4 2.3 72 -0.1 -0.2 2.8 2.7 96 -0.2 -0.2 3.1 3.0 120 -0.2 -0.2 3.5 3.4 144 -0.2 -0.2 3.8 3.7 168 -0.2 -0.2 4.1 4.0 192 -0.2 -0.3 4.3 4.2 216 -0.2 -0.3 4.7 4.5 240 -0.2 -0.2 4.9 4.7 # ** NCEP/USA GFS ** TABLE 2.6 TROPICS VERIFICATION AGAINST ANALYSES (20N-20S) ----------------------------------------------------------- 250 HPA WIND APRIL 2012 ----------------------------------------------- FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.3 -0.3 4.2 4.2 48 -0.6 -0.6 5.7 5.8 72 -0.8 -0.8 6.7 6.7 96 -0.8 -0.8 7.5 7.6 120 -0.8 -0.8 8.3 8.3 144 -0.8 -0.9 9.0 9.1 168 -0.9 -0.9 9.8 9.9 192 -1.0 -1.0 10.5 10.6 216 -1.1 -1.1 11.1 11.3 240 -1.1 -1.1 11.7 11.9 TABLE 3.1 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- MEAN-SEA-LEVEL PRESSURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD (HPA) (HPA) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 0.0 0.0 1.5 1.5 1.0 1.0 19.9 19.9 48 -0.1 0.0 2.5 2.5 1.0 1.0 28.5 28.4 72 -0.1 0.0 3.7 3.7 0.9 0.9 36.7 36.6 96 0.0 0.0 5.0 5.0 0.9 0.9 44.9 44.7 120 0.1 0.1 6.2 6.3 0.9 0.9 51.2 51.6 144 0.2 0.2 7.3 7.3 0.8 0.8 56.7 56.9 168 0.2 0.3 8.5 8.2 0.8 0.8 61.3 61.1 192 0.2 0.3 9.1 9.0 0.7 0.7 64.0 63.9 216 0.3 0.3 9.7 9.7 0.7 0.7 67.1 66.7 240 0.3 0.3 10.2 10.5 0.7 0.7 69.2 70.4 TABLE 3.2 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD ( M ) ( M ) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 0.1 0.3 11.5 11.4 1.0 1.0 14.5 14.5 48 -0.1 0.7 20.9 21.2 1.0 1.0 21.8 21.8 72 0.5 1.1 33.2 33.7 1.0 1.0 29.1 29.4 96 1.0 1.3 48.3 46.9 0.9 0.9 36.7 36.3 120 1.7 2.1 60.9 61.3 0.9 0.9 42.5 42.6 144 1.9 2.4 74.9 75.8 0.9 0.8 47.8 48.3 168 1.6 2.5 87.0 86.7 0.8 0.8 52.6 52.6 192 1.5 2.2 96.2 96.0 0.8 0.8 55.9 55.5 216 1.2 1.7 104.8 103.0 0.7 0.7 58.4 58.0 240 0.5 1.3 111.8 112.9 0.7 0.7 60.8 60.8 # ** NCEP/USA GFS ** TABLE 3.3 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION S1 SCORE PERIOD ( M ) ( M ) -------------- -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ ------ ------ 24 3.1 3.3 14.3 13.8 1.0 1.0 11.6 11.4 48 5.1 6.2 26.8 27.1 1.0 1.0 17.8 17.9 72 6.6 7.8 43.5 44.4 1.0 1.0 24.7 25.0 96 7.3 8.1 63.6 62.4 0.9 0.9 31.9 31.9 120 7.0 8.3 81.3 81.3 0.9 0.9 37.8 37.9 144 6.5 8.1 99.1 101.8 0.9 0.9 43.1 43.7 168 5.5 7.1 116.3 117.6 0.8 0.8 47.8 48.1 192 3.9 5.4 131.4 133.2 0.8 0.8 51.5 51.7 216 0.8 2.0 144.2 143.3 0.7 0.7 54.1 54.3 240 -1.7 -0.8 153.9 154.7 0.7 0.7 56.6 56.6 TABLE 3.4 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION PERIOD (K) (K) -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ 24 0.1 0.1 0.8 0.8 1.0 1.0 48 0.2 0.2 1.3 1.3 1.0 1.0 72 0.3 0.3 1.8 1.9 0.9 0.9 96 0.3 0.3 2.4 2.4 0.9 0.9 120 0.3 0.3 2.8 2.8 0.9 0.9 144 0.3 0.3 3.3 3.3 0.8 0.8 168 0.3 0.3 3.7 3.7 0.8 0.8 192 0.2 0.3 4.0 4.0 0.7 0.7 216 0.2 0.2 4.3 4.3 0.7 0.7 240 0.1 0.1 4.5 4.5 0.7 0.7 TABLE 3.5 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ----------------------------------------------- FORECAST MEAN ERROR RMSE CORRELATION PERIOD (K) (K) -------------- (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ ------ ------ 24 0.0 0.0 0.9 0.9 1.0 1.0 48 0.0 0.0 1.5 1.5 0.9 0.9 72 -0.1 -0.1 2.0 2.1 0.9 0.9 96 -0.2 -0.2 2.5 2.6 0.8 0.8 120 -0.3 -0.3 3.0 3.0 0.8 0.8 144 -0.5 -0.4 3.4 3.4 0.7 0.7 168 -0.6 -0.6 3.7 3.7 0.7 0.7 192 -0.8 -0.7 4.0 4.0 0.7 0.7 216 -1.0 -1.0 4.1 4.1 0.6 0.6 240 -1.2 -1.2 4.3 4.3 0.6 0.6 # ** NCEP/USA GFS ** TABLE 3.6 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- 500 HPA WIND APRIL 2012 ----------------------------------------------- FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.1 -0.1 4.0 4.0 48 -0.1 -0.1 5.9 5.9 72 -0.2 -0.2 7.8 7.9 96 -0.4 -0.3 9.8 9.7 120 -0.5 -0.5 11.4 11.4 144 -0.6 -0.6 13.0 13.1 168 -0.7 -0.7 14.3 14.3 192 -0.8 -0.7 15.2 15.3 216 -0.9 -0.8 16.1 15.9 240 -0.9 -0.9 16.9 16.8 TABLE 3.7 SOUTHERN HEMISPHERE VERIFICATION AGAINST ANALYSES (20S-90S) ----------------------------------------------------------- 250 HPA WIND APRIL 2012 ----------------------------------------------- FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.1 -0.1 5.0 4.9 48 -0.2 -0.2 7.6 7.6 72 -0.4 -0.3 10.4 10.5 96 -0.6 -0.5 13.5 13.4 120 -0.7 -0.7 16.2 16.2 144 -0.9 -0.8 18.6 18.9 168 -1.0 -1.0 20.8 20.9 192 -1.1 -1.1 22.5 22.8 216 -1.1 -1.1 23.8 23.9 240 -1.1 -1.2 25.2 25.1 # ** NCEP/USA GFS MODEL ** TABLE 4.1 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -3.19 -2.60 8.94 9.21 48 -4.76 -4.21 12.86 12.81 72 -5.13 -3.73 18.84 18.10 96 -4.48 -1.90 25.32 25.95 120 -3.93 -0.46 33.27 33.64 144 -3.28 -0.26 43.01 43.75 168 -1.41 -0.39 49.21 52.10 192 2.46 -0.42 51.17 55.74 216 4.74 5.02 57.93 58.43 240 10.76 11.94 63.17 63.95 TABLE 4.2 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -3.84 -3.88 11.34 11.94 48 -5.53 -5.39 17.44 17.40 72 -5.77 -4.28 26.04 26.72 96 -4.87 -2.38 38.73 39.94 120 -4.64 -1.84 53.45 53.04 144 -4.54 -3.38 65.81 68.49 168 -2.61 -2.61 78.11 80.95 192 4.28 0.14 81.26 87.72 216 4.63 3.33 94.34 99.14 240 9.64 11.61 105.42 109.88 TABLE 4.3 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.63 0.61 13.99 14.15 48 0.79 1.19 22.82 22.33 72 1.21 2.44 35.81 36.67 96 2.02 4.48 54.53 54.89 120 1.55 4.25 76.45 76.18 144 1.67 3.42 91.77 95.84 168 3.29 4.71 108.41 110.04 192 8.36 2.16 116.15 126.59 216 6.67 4.82 133.63 143.25 240 8.44 14.26 149.49 153.33 # ** NCEP/USA GFS MODEL ** TABLE 4.4 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.13 -0.15 1.46 1.49 48 -0.20 -0.11 1.83 1.79 72 -0.27 -0.12 2.23 2.21 96 -0.25 -0.21 2.87 2.85 120 -0.37 -0.28 3.64 3.48 144 -0.38 -0.40 4.25 4.45 168 -0.36 -0.46 4.65 4.82 192 -0.28 -0.22 4.69 5.09 216 -0.16 -0.06 5.07 5.54 240 -0.21 0.06 5.92 5.85 TABLE 4.5 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.10 0.11 0.95 0.99 48 0.14 0.16 1.32 1.31 72 0.18 0.20 1.70 1.71 96 0.27 0.28 2.30 2.20 120 0.21 0.18 2.86 2.78 144 0.26 0.23 3.26 3.43 168 0.24 0.29 3.61 3.65 192 0.33 0.29 3.86 3.90 216 0.21 0.18 4.33 4.37 240 0.09 0.21 4.81 4.79 TABLE 4.6 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.42 0.46 1.21 1.27 48 0.45 0.48 1.59 1.66 72 0.34 0.36 1.96 2.00 96 0.21 0.20 2.38 2.41 120 0.05 0.11 2.75 2.84 144 -0.02 0.08 3.17 3.21 168 0.01 0.08 3.35 3.43 192 -0.13 -0.06 3.50 3.52 216 -0.44 -0.36 3.81 3.68 240 -0.59 -0.53 3.79 4.05 # ** NCEP/USA GFS MODEL ** TABLE 4.7 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.02 -0.43 4.05 4.24 48 0.05 -0.39 4.82 5.06 72 -0.01 -0.53 5.82 6.13 96 -0.01 -0.45 7.10 7.40 120 -0.12 -0.52 8.41 8.66 144 0.06 -0.26 9.76 10.24 168 0.00 -0.33 10.37 10.99 192 -0.42 -0.51 10.31 11.34 216 -0.45 -1.00 10.99 11.62 240 -0.45 -1.04 11.73 12.03 TABLE 4.8 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.48 -0.43 4.68 4.83 48 -0.65 -0.58 6.09 5.96 72 -0.73 -0.93 7.64 7.77 96 -0.99 -0.97 9.77 9.81 120 -0.80 -0.75 12.05 11.83 144 -0.90 -0.60 13.55 14.04 168 -0.95 -0.64 14.58 15.65 192 -1.36 -1.10 15.22 15.77 216 -1.64 -1.67 16.83 17.46 240 -1.86 -1.83 17.77 18.29 TABLE 4.9 NORTH AMERICA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.75 -0.58 6.14 6.40 48 -0.87 -0.78 8.42 8.29 72 -1.14 -1.11 11.10 10.50 96 -1.65 -1.28 14.17 13.63 120 -1.82 -1.16 17.08 17.59 144 -1.54 -1.10 21.10 20.33 168 -1.57 -0.67 22.30 22.89 192 -1.88 -1.46 23.59 24.04 216 -2.05 -1.81 25.86 26.13 240 -2.15 -1.65 27.15 27.55 # ** NCEP/USA GFS MODEL ** TABLE 5.1 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -1.55 0.53 8.30 7.58 48 -1.45 -0.06 13.10 11.47 72 0.25 2.07 16.55 16.07 96 5.64 5.50 23.17 24.19 120 9.34 11.62 30.86 32.88 144 14.97 16.22 41.43 42.13 168 22.18 17.63 53.57 48.56 192 26.47 22.48 65.01 62.07 216 29.28 27.60 70.66 69.63 240 32.57 29.60 77.45 71.03 TABLE 5.2 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.35 1.12 10.76 10.47 48 0.77 1.75 17.54 15.98 72 3.23 3.38 24.84 24.17 96 9.86 8.79 34.87 34.70 120 15.12 19.64 47.02 46.79 144 20.22 28.50 60.20 63.00 168 32.15 29.81 76.25 75.98 192 39.86 34.60 90.90 89.64 216 43.48 41.36 108.20 100.87 240 47.37 43.43 115.72 106.69 TABLE 5.3 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 2.85 4.84 13.84 13.34 48 7.65 7.45 22.81 19.70 72 11.61 11.06 33.39 31.97 96 20.91 17.41 48.49 46.00 120 27.38 35.64 65.34 63.99 144 35.84 45.73 81.44 85.39 168 46.20 44.25 98.70 104.87 192 47.57 48.43 119.42 118.98 216 56.65 53.21 141.79 133.46 240 58.42 51.46 155.24 144.77 # ** NCEP/USA GFS MODEL ** TABLE 5.4 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.12 0.30 1.08 1.14 48 0.12 0.30 1.36 1.39 72 0.10 0.34 1.65 1.65 96 0.20 0.47 1.99 1.95 120 0.20 0.56 2.44 2.40 144 0.20 0.66 3.01 2.92 168 0.26 0.58 3.43 3.34 192 0.51 0.63 3.75 3.45 216 0.57 0.92 4.17 4.02 240 0.72 1.02 4.40 4.34 TABLE 5.5 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.19 0.18 0.84 0.83 48 0.36 0.33 1.18 1.15 72 0.48 0.40 1.61 1.59 96 0.62 0.50 1.98 1.99 120 0.83 0.91 2.59 2.45 144 1.00 1.21 2.91 3.08 168 1.02 1.20 3.35 3.47 192 1.05 1.14 3.75 3.78 216 1.23 1.17 4.40 4.20 240 1.17 1.02 4.71 4.55 TABLE 5.6 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.14 0.18 1.25 1.18 48 -0.05 -0.05 1.70 1.59 72 -0.32 -0.21 2.11 2.05 96 -0.47 -0.42 2.58 2.46 120 -0.72 -0.78 3.07 3.11 144 -0.87 -0.95 3.49 3.41 168 -1.10 -1.10 3.61 3.79 192 -1.19 -1.14 3.92 3.96 216 -1.44 -1.49 4.29 4.20 240 -1.69 -1.77 4.55 4.47 # ** NCEP/USA GFS MODEL ** TABLE 5.7 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.44 -0.29 3.92 3.83 48 -0.46 -0.41 4.73 4.59 72 -0.52 -0.51 5.61 5.27 96 -0.84 -0.63 6.51 6.19 120 -0.87 -0.72 7.72 7.14 144 -0.87 -0.69 8.57 8.05 168 -0.96 -1.01 9.53 8.76 192 -1.30 -0.93 10.29 9.63 216 -1.12 -1.12 10.91 10.32 240 -1.32 -1.45 11.35 10.32 TABLE 5.8 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.44 -0.67 4.48 4.44 48 -0.48 -0.87 5.80 5.71 72 -0.37 -0.79 7.43 7.16 96 -0.41 -0.75 8.73 8.82 120 -0.39 -0.73 10.48 10.64 144 -0.58 -0.92 12.20 12.46 168 -0.66 -1.21 13.35 13.96 192 -1.07 -1.08 15.68 14.99 216 -1.19 -1.58 16.90 16.62 240 -1.26 -1.92 16.73 17.02 TABLE 5.9 EUROPE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.25 -0.29 4.83 4.58 48 -0.57 -0.56 6.46 6.15 72 -0.41 -0.65 8.17 8.07 96 -0.29 -0.21 10.59 10.62 120 -0.20 -0.24 13.21 13.17 144 -0.17 -0.72 15.64 16.34 168 -0.55 -0.94 18.62 19.02 192 -0.59 -1.21 21.55 20.20 216 -1.34 -1.80 23.72 22.79 240 -1.22 -2.07 23.72 23.93 # ** NCEP/USA GFS MODEL ** TABLE 6.1 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.86 -0.61 9.20 10.10 48 1.17 1.63 12.42 13.23 72 4.38 4.69 16.08 17.51 96 6.44 6.36 22.63 23.11 120 7.32 5.60 30.36 28.94 144 6.16 4.17 38.07 35.76 168 5.05 3.79 42.90 41.89 192 0.28 2.81 45.16 44.75 216 -0.21 -0.53 52.00 50.94 240 -2.67 -6.00 56.53 55.91 TABLE 6.2 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -2.75 -3.23 13.16 13.14 48 -1.20 -1.60 16.79 17.03 72 2.05 1.85 21.72 22.19 96 3.88 3.86 29.60 30.31 120 6.41 3.71 37.91 37.50 144 5.07 3.32 45.22 48.11 168 4.94 2.88 53.71 54.71 192 3.53 2.56 62.28 61.07 216 1.59 2.25 72.26 71.48 240 4.56 -0.45 78.76 78.25 TABLE 6.3 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -3.70 -3.68 19.77 18.81 48 0.56 0.62 24.77 25.22 72 5.25 6.75 31.96 33.99 96 7.17 8.81 42.21 44.56 120 8.54 7.49 52.70 54.55 144 7.98 6.10 63.38 67.52 168 6.83 6.93 75.21 77.29 192 6.81 7.22 87.27 86.55 216 2.75 6.42 99.84 101.98 240 1.20 3.32 111.93 112.54 # ** NCEP/USA GFS MODEL ** TABLE 6.4 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.28 -0.47 1.60 1.68 48 -0.39 -0.63 1.90 2.05 72 -0.49 -0.73 2.13 2.29 96 -0.55 -0.76 2.45 2.60 120 -0.46 -0.69 2.94 2.98 144 -0.45 -0.67 3.51 3.36 168 -0.34 -0.57 3.85 3.83 192 -0.18 -0.41 4.34 4.27 216 -0.21 -0.27 4.63 4.75 240 0.11 -0.06 4.99 5.13 TABLE 6.5 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.01 -0.03 1.04 1.06 48 0.06 0.01 1.27 1.30 72 0.13 0.11 1.58 1.61 96 0.13 0.11 1.95 2.03 120 0.14 0.11 2.30 2.37 144 0.13 0.08 2.73 2.77 168 0.11 0.09 3.19 3.14 192 0.26 0.23 3.49 3.59 216 0.06 0.17 3.90 3.89 240 0.18 0.22 4.19 4.27 TABLE 6.6 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.06 0.19 1.30 1.31 48 0.07 0.26 1.65 1.66 72 0.13 0.32 1.97 2.01 96 0.09 0.27 2.34 2.40 120 -0.07 0.11 2.69 2.79 144 -0.16 0.07 3.09 3.04 168 -0.27 0.07 3.37 3.20 192 -0.24 0.02 3.47 3.52 216 -0.24 -0.02 3.50 3.58 240 -0.45 -0.10 3.74 3.76 # ** NCEP/USA GFS MODEL ** TABLE 6.7 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.43 -0.25 4.10 4.23 48 -0.55 -0.18 4.81 4.89 72 -0.64 -0.23 5.49 5.56 96 -0.76 -0.31 6.25 6.29 120 -0.78 -0.38 7.37 7.14 144 -0.77 -0.46 8.27 8.21 168 -0.74 -0.48 8.83 8.75 192 -0.82 -0.65 9.05 9.07 216 -0.73 -0.50 9.62 9.54 240 -1.03 -0.67 9.97 10.02 TABLE 6.8 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.51 -0.38 4.70 4.92 48 -0.61 -0.55 5.82 6.01 72 -0.59 -0.60 6.90 7.16 96 -0.73 -0.71 8.21 8.57 120 -0.72 -0.72 9.26 9.59 144 -0.78 -0.73 10.71 10.67 168 -0.88 -0.90 11.91 11.68 192 -0.74 -0.74 12.40 12.44 216 -0.59 -0.64 13.39 13.04 240 -0.88 -0.80 14.32 13.78 TABLE 6.9 ASIA VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.61 -0.66 6.51 6.87 48 -1.01 -1.02 8.45 8.53 72 -1.19 -1.23 9.83 10.25 96 -1.42 -1.34 11.62 11.92 120 -1.28 -1.24 12.91 13.82 144 -1.26 -1.34 14.64 15.06 168 -1.49 -1.49 16.57 16.37 192 -1.51 -1.28 17.33 17.89 216 -1.15 -1.37 18.25 18.84 240 -1.31 -1.24 19.30 19.88 # ** NCEP/USA GFS MODEL ** TABLE 7.1 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -5.96 -5.63 8.62 9.12 48 -3.67 -2.10 9.64 10.59 72 -2.96 -1.85 12.49 14.22 96 -3.71 -4.19 18.86 21.41 120 -4.83 -2.48 23.04 28.34 144 -3.50 -1.15 28.20 34.31 168 -4.83 -2.17 32.61 39.10 192 -8.40 -3.98 37.12 45.74 216 -10.55 -4.96 40.15 51.12 240 -10.87 -6.11 46.21 53.36 TABLE 7.2 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -9.26 -10.27 12.51 14.74 48 -7.73 -7.95 14.67 17.54 72 -7.68 -6.59 19.63 22.82 96 -9.55 -9.32 29.12 31.39 120 -9.70 -7.48 35.57 41.71 144 -8.34 -5.15 41.57 47.56 168 -9.57 -5.25 47.25 57.32 192 -13.74 -9.52 52.11 63.15 216 -17.73 -11.97 55.11 73.23 240 -19.49 -13.82 62.40 80.80 TABLE 7.3 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -4.55 -6.66 12.76 14.72 48 -0.73 -1.13 17.66 19.91 72 1.19 0.84 26.84 30.70 96 0.35 -0.04 40.31 42.07 120 1.39 1.06 52.02 57.24 144 2.18 2.42 59.14 71.97 168 -0.03 -1.56 72.94 81.22 192 -7.12 -3.78 78.84 91.91 216 -13.25 -10.46 83.51 104.21 240 -16.89 -13.25 93.98 116.90 # ** NCEP/USA GFS MODEL ** TABLE 7.4 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.10 0.07 1.12 1.16 48 -0.11 0.08 1.31 1.38 72 -0.14 0.03 1.49 1.61 96 -0.09 0.00 1.76 1.72 120 -0.05 0.02 2.09 2.16 144 0.04 0.04 2.34 2.32 168 0.08 0.17 2.67 2.82 192 0.07 0.25 2.96 2.95 216 -0.02 0.03 2.97 3.21 240 -0.13 0.03 3.35 3.88 TABLE 7.5 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.02 -0.04 0.88 0.83 48 -0.03 -0.05 1.09 1.12 72 -0.02 -0.04 1.26 1.38 96 -0.01 -0.06 1.61 1.76 120 0.05 0.03 1.90 2.03 144 0.06 0.10 2.07 2.20 168 0.04 -0.04 2.42 2.45 192 -0.08 -0.13 2.63 2.85 216 -0.20 -0.19 2.77 3.01 240 -0.30 -0.15 2.77 3.29 TABLE 7.6 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.53 0.42 1.08 1.02 48 0.72 0.60 1.35 1.36 72 0.80 0.67 1.61 1.52 96 0.92 0.78 1.92 1.94 120 0.88 0.50 2.12 2.19 144 0.81 0.50 2.34 2.30 168 0.74 0.35 2.43 2.38 192 0.63 0.31 2.62 2.75 216 0.58 0.16 2.67 3.01 240 0.49 0.01 2.78 3.17 # ** NCEP/USA GFS MODEL ** TABLE 7.7 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.12 0.07 3.66 3.56 48 -0.25 0.08 4.25 4.44 72 -0.30 0.12 4.92 5.09 96 -0.47 -0.01 5.73 5.65 120 -0.64 -0.09 6.70 6.81 144 -0.65 -0.17 7.23 7.56 168 -0.87 -0.37 7.79 8.04 192 -0.92 -0.48 8.28 8.75 216 -1.04 -0.79 8.66 9.13 240 -0.88 -0.22 8.99 9.63 TABLE 7.8 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.58 -0.63 4.18 4.29 48 -0.82 -0.78 5.12 5.42 72 -0.97 -1.12 6.23 6.52 96 -1.13 -1.39 7.60 7.70 120 -1.52 -1.18 9.05 9.13 144 -1.83 -1.39 10.24 10.28 168 -2.06 -1.74 10.70 10.92 192 -2.19 -2.13 11.57 11.97 216 -1.73 -1.77 12.07 12.46 240 -1.55 -1.84 12.65 13.08 TABLE 7.9 AUSTRALIA/ NEW Z VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.86 -0.57 5.69 5.84 48 -1.21 -0.65 7.50 7.65 72 -1.29 -1.13 9.21 9.26 96 -1.47 -1.13 11.63 11.51 120 -1.89 -1.32 14.14 13.74 144 -2.28 -1.57 16.19 15.91 168 -2.59 -2.35 17.71 18.31 192 -2.78 -2.42 19.24 19.21 216 -2.03 -2.12 20.44 19.78 240 -1.44 -1.83 21.81 21.00 # ** NCEP/USA GFS MODEL ** TABLE 8.1 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -8.65 -7.42 12.33 12.17 48 -7.75 -6.75 11.89 12.09 72 -7.69 -7.12 12.22 12.81 96 -7.94 -7.57 13.50 14.39 120 -9.20 -9.09 14.57 15.54 144 -10.84 -10.03 16.44 16.66 168 -11.50 -11.44 16.87 17.95 192 -12.20 -12.13 18.35 18.37 216 -13.82 -13.47 19.79 19.23 240 -13.91 -13.40 20.06 19.49 TABLE 8.2 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -11.23 -9.52 15.02 14.19 48 -11.07 -9.05 15.25 14.20 72 -11.49 -9.70 16.09 14.98 96 -12.30 -10.64 17.23 16.54 120 -13.94 -11.94 18.68 17.89 144 -15.41 -13.35 20.16 18.94 168 -16.49 -14.88 21.04 20.25 192 -17.55 -15.80 22.52 21.18 216 -19.10 -17.13 24.01 22.10 240 -19.67 -17.31 24.64 22.66 TABLE 8.3 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -9.39 -7.84 15.48 14.65 48 -8.14 -5.82 15.72 14.11 72 -8.63 -6.02 17.03 15.24 96 -9.53 -7.16 18.12 17.15 120 -11.15 -8.61 19.58 18.40 144 -13.47 -10.55 21.76 20.25 168 -15.62 -13.02 23.89 22.74 192 -17.17 -14.86 25.92 25.01 216 -21.43 -18.81 30.12 28.73 240 -23.55 -20.45 32.67 31.22 # ** NCEP/USA GFS MODEL ** TABLE 8.4 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.06 -0.13 1.00 1.06 48 -0.07 -0.15 1.01 1.09 72 -0.10 -0.17 1.04 1.12 96 -0.12 -0.21 1.09 1.17 120 -0.17 -0.26 1.10 1.17 144 -0.17 -0.23 1.13 1.23 168 -0.17 -0.26 1.17 1.25 192 -0.19 -0.26 1.18 1.27 216 -0.20 -0.32 1.24 1.31 240 -0.26 -0.35 1.29 1.33 TABLE 8.5 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.24 -0.16 0.85 0.88 48 -0.29 -0.14 0.90 0.92 72 -0.27 -0.12 0.92 0.95 96 -0.27 -0.12 0.96 1.02 120 -0.27 -0.09 0.98 1.05 144 -0.29 -0.11 1.05 1.08 168 -0.34 -0.15 1.10 1.12 192 -0.36 -0.19 1.13 1.18 216 -0.35 -0.18 1.18 1.24 240 -0.38 -0.19 1.22 1.27 TABLE 8.6 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.49 0.42 0.85 0.80 48 0.53 0.50 0.93 0.91 72 0.53 0.47 0.96 0.95 96 0.47 0.42 0.99 1.01 120 0.45 0.40 1.02 1.01 144 0.44 0.37 1.02 1.01 168 0.39 0.32 1.05 1.03 192 0.37 0.29 1.05 1.07 216 0.08 -0.02 1.04 1.05 240 -0.02 -0.11 1.06 1.08 # ** NCEP/USA GFS MODEL ** TABLE 8.7 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.14 -0.28 3.36 3.40 48 -0.25 -0.29 3.55 3.59 72 -0.31 -0.39 3.78 3.87 96 -0.45 -0.44 3.96 4.05 120 -0.46 -0.53 4.37 4.34 144 -0.48 -0.52 4.70 4.68 168 -0.55 -0.52 5.04 4.95 192 -0.62 -0.61 5.13 5.08 216 -0.53 -0.62 5.15 5.21 240 -0.48 -0.48 5.33 5.27 TABLE 8.8 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.82 -0.80 3.88 3.89 48 -0.83 -0.84 4.16 4.21 72 -0.84 -0.90 4.42 4.51 96 -0.79 -0.88 4.77 4.93 120 -0.84 -0.89 5.13 5.30 144 -0.87 -0.87 5.48 5.65 168 -0.91 -0.82 5.89 6.08 192 -0.97 -0.83 6.27 6.32 216 -1.01 -1.02 6.43 6.53 240 -1.12 -1.10 6.53 6.75 TABLE 8.9 TROPICS VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.63 -0.72 5.55 5.60 48 -0.90 -0.98 6.20 6.39 72 -0.89 -1.00 6.75 7.27 96 -0.84 -0.93 7.30 7.96 120 -1.05 -0.98 7.74 8.52 144 -1.08 -1.16 8.24 9.21 168 -1.07 -0.98 8.83 9.74 192 -1.19 -1.18 9.22 10.41 216 -1.34 -1.44 9.60 10.83 240 -1.42 -1.48 10.08 11.27 # ** NCEP/USA GFS MODEL ** TABLE 9.1 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -2.28 -1.72 8.95 9.11 48 -2.07 -1.72 13.23 13.29 72 -1.26 -0.71 18.40 18.76 96 0.59 1.37 25.53 26.19 120 2.30 2.90 33.61 34.27 144 2.52 3.21 44.10 43.04 168 5.25 4.42 51.51 51.57 192 7.07 5.74 56.28 58.94 216 7.82 7.41 64.42 64.28 240 9.91 12.35 69.87 67.96 TABLE 9.2 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -2.88 -2.42 12.32 12.36 48 -2.54 -2.65 18.45 18.10 72 -1.35 -1.31 26.31 26.48 96 0.47 0.86 37.55 38.03 120 2.31 3.29 48.82 49.73 144 3.14 4.30 62.38 63.44 168 5.81 4.66 75.30 76.70 192 8.72 7.51 85.28 87.57 216 9.18 8.75 97.48 100.04 240 9.69 11.54 108.06 106.17 TABLE 9.3 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.45 0.32 15.37 15.26 48 1.88 1.56 23.01 22.63 72 4.17 4.16 34.12 34.45 96 6.88 7.13 49.52 48.90 120 8.45 10.42 66.98 66.58 144 9.74 11.16 82.91 85.96 168 11.70 10.07 100.29 103.13 192 14.68 12.97 116.98 118.18 216 12.44 10.78 132.61 136.03 240 10.16 12.38 147.69 145.70 # ** NCEP/USA GFS MODEL ** TABLE 9.4 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.09 -0.05 1.38 1.42 48 -0.14 -0.09 1.67 1.70 72 -0.17 -0.10 1.99 2.02 96 -0.20 -0.17 2.46 2.51 120 -0.21 -0.13 3.00 3.05 144 -0.20 -0.16 3.58 3.67 168 -0.23 -0.24 4.04 4.08 192 -0.14 -0.08 4.30 4.45 216 -0.11 -0.02 4.78 4.96 240 -0.17 -0.06 5.27 5.27 TABLE 9.5 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.08 0.09 0.93 0.96 48 0.15 0.14 1.27 1.27 72 0.22 0.19 1.65 1.67 96 0.28 0.25 2.13 2.16 120 0.32 0.31 2.64 2.69 144 0.35 0.38 3.15 3.18 168 0.33 0.35 3.46 3.53 192 0.43 0.42 3.90 3.95 216 0.32 0.32 4.31 4.43 240 0.18 0.20 4.75 4.85 TABLE 9.6 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.17 0.20 1.24 1.25 48 0.06 0.09 1.65 1.65 72 -0.11 -0.08 2.08 2.11 96 -0.24 -0.21 2.58 2.59 120 -0.44 -0.42 3.02 3.09 144 -0.59 -0.55 3.46 3.44 168 -0.68 -0.65 3.70 3.77 192 -0.79 -0.83 3.94 4.00 216 -1.01 -1.03 4.19 4.20 240 -1.16 -1.20 4.36 4.50 # ** NCEP/USA GFS MODEL ** TABLE 9.7 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.43 -0.43 3.98 3.96 48 -0.47 -0.47 4.79 4.75 72 -0.52 -0.49 5.65 5.61 96 -0.62 -0.56 6.65 6.68 120 -0.68 -0.58 7.87 7.85 144 -0.55 -0.52 8.79 8.88 168 -0.66 -0.73 9.61 9.56 192 -0.77 -0.72 10.07 10.17 216 -0.69 -0.83 10.55 10.70 240 -0.80 -0.99 11.01 11.02 TABLE 9.8 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.49 -0.50 4.55 4.57 48 -0.55 -0.63 5.89 5.90 72 -0.64 -0.78 7.45 7.51 96 -0.73 -0.78 9.09 9.23 120 -0.78 -0.81 10.94 11.05 144 -0.89 -0.81 12.36 12.46 168 -0.99 -1.05 13.78 14.14 192 -0.95 -0.96 14.88 14.89 216 -1.16 -1.26 15.93 16.33 240 -1.34 -1.33 16.68 16.77 TABLE 9.9 NORTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.42 -0.42 5.42 5.57 48 -0.62 -0.63 7.32 7.34 72 -0.69 -0.71 9.43 9.37 96 -0.82 -0.66 11.92 11.77 120 -0.95 -0.72 14.56 14.78 144 -0.93 -1.02 16.63 17.30 168 -1.07 -0.90 19.09 19.47 192 -1.15 -1.03 20.97 21.00 216 -1.31 -1.44 22.61 23.04 240 -1.34 -1.35 23.81 23.83 # ** NCEP/USA GFS MODEL ** TABLE 10.1 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -4.67 -4.70 9.06 11.46 48 -3.93 -4.33 11.39 14.43 72 -3.46 -4.33 15.58 20.13 96 -4.34 -5.65 22.51 26.04 120 -4.76 -5.63 28.91 33.04 144 -4.34 -5.08 34.71 39.22 168 -4.40 -4.98 39.43 45.88 192 -4.47 -7.77 42.36 51.68 216 -6.06 -5.00 47.15 52.95 240 -6.44 -3.50 54.22 57.81 TABLE 10.2 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -7.27 -6.70 13.38 14.41 48 -7.03 -5.81 16.77 19.19 72 -6.88 -5.45 22.93 28.57 96 -8.41 -7.40 32.88 36.29 120 -8.12 -7.15 42.16 45.78 144 -6.89 -5.84 49.78 53.15 168 -5.64 -6.15 56.38 62.83 192 -7.10 -7.95 61.53 71.24 216 -12.00 -5.43 66.39 76.60 240 -13.71 -5.07 72.76 84.53 TABLE 10.3 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA GEOPOTENTIAL HEIGHT APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (M) (M) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -3.29 -2.15 15.41 15.94 48 -1.31 2.28 21.49 24.93 72 0.24 4.18 31.40 38.43 96 0.01 4.14 44.80 49.84 120 1.89 5.35 58.28 60.68 144 4.74 7.02 71.63 79.04 168 3.45 4.74 83.81 87.85 192 -1.41 1.94 89.79 102.11 216 -9.10 1.71 96.71 115.24 240 -13.00 0.14 106.76 120.91 # ** NCEP/USA GFS MODEL ** TABLE 10.4 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.04 0.03 1.36 1.52 48 -0.08 0.03 1.58 1.73 72 -0.13 -0.05 1.81 1.93 96 -0.17 -0.06 2.09 2.18 120 -0.05 -0.13 2.49 2.63 144 0.09 -0.12 2.93 2.89 168 0.04 -0.06 3.20 3.34 192 0.04 0.16 3.55 3.47 216 -0.39 -0.23 3.74 3.88 240 -0.50 -0.27 3.97 4.27 TABLE 10.5 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.01 0.06 0.97 1.05 48 -0.02 0.14 1.25 1.30 72 0.02 0.23 1.51 1.71 96 0.02 0.24 1.86 2.12 120 0.09 0.30 2.18 2.36 144 0.25 0.37 2.52 2.80 168 0.19 0.34 2.89 2.93 192 0.10 0.32 3.12 3.35 216 -0.06 0.35 3.25 3.73 240 -0.14 0.27 3.26 3.64 TABLE 10.6 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA TEMPERATURE APRIL 2012 ------------------------------------------------ FORECAST MEAN ERROR RMSE PERIOD (K) (K) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 0.38 0.36 1.19 1.26 48 0.47 0.42 1.49 1.57 72 0.49 0.37 1.85 1.99 96 0.58 0.44 2.27 2.41 120 0.55 0.41 2.54 2.67 144 0.41 0.39 2.85 2.90 168 0.27 0.25 3.05 3.14 192 0.12 0.09 3.22 3.31 216 -0.04 -0.23 3.33 3.53 240 -0.07 -0.31 3.45 3.61 # ** NCEP/USA GFS MODEL ** TABLE 10.7 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 850 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.43 -0.28 4.04 4.36 48 -0.41 -0.23 4.75 5.14 72 -0.53 -0.19 5.38 5.72 96 -0.71 -0.33 6.40 6.49 120 -0.80 -0.16 7.43 7.77 144 -0.67 -0.20 8.06 8.81 168 -0.66 -0.44 8.64 9.07 192 -0.87 -0.42 9.04 9.75 216 -1.18 -0.80 9.56 9.93 240 -1.11 -0.73 9.97 10.25 TABLE 10.8 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 500 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.49 -0.54 4.60 4.97 48 -0.74 -0.74 5.64 6.09 72 -0.97 -0.81 6.79 7.57 96 -1.00 -0.98 8.35 8.99 120 -1.37 -0.78 9.88 10.46 144 -1.41 -0.86 11.28 11.83 168 -1.61 -1.29 11.92 12.47 192 -1.77 -1.54 12.78 13.55 216 -1.70 -1.56 13.50 14.22 240 -1.59 -1.55 14.06 14.68 TABLE 10.9 SOUTH HEMISPHERE VERIFICATION AGAINST RADIOSONDES -------------------------------------------------- 250 HPA WIND APRIL 2012 ------------------------------------------------ FORECAST MEAN SPEED ERROR RMSEV PERIOD (M/S) (M/S) (HOURS) 00 GMT 12 GMT 00 GMT 12 GMT -------- ------ ------ ------ ------ 24 -0.58 -0.45 5.81 5.94 48 -0.93 -0.63 7.71 7.87 72 -0.96 -0.70 9.66 10.41 96 -1.05 -0.69 12.02 12.97 120 -1.49 -0.82 14.81 15.29 144 -1.66 -1.44 17.20 17.69 168 -1.98 -1.59 19.12 19.93 192 -1.71 -1.91 20.38 21.36 216 -1.62 -1.69 21.71 22.01 240 -1.26 -1.62 22.84 22.54