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JJA Mean Precipitation

JJA Mean Precipitation. Regional simulations driven by NCEP/NCAR global reanalysis for 25 years at 50 km spatial resolution. NCEP. OBS. MM5. WRF. JJA Precipitation Anomaly (1993 minus 1988). NCEP. OBS. MM5. WRF. DJF Mean Precipitation. NCEP. OBS. MM5. WRF. ACC ~ 0.94. ACC ~ 0.90.

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JJA Mean Precipitation

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  1. JJA Mean Precipitation Regional simulations driven by NCEP/NCAR global reanalysis for 25 years at 50 km spatial resolution NCEP OBS MM5 WRF

  2. JJA Precipitation Anomaly (1993 minus 1988) NCEP OBS MM5 WRF

  3. DJF Mean Precipitation NCEP OBS MM5 WRF

  4. ACC ~ 0.94 ACC ~ 0.90 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ACC ~ 0.92 ACC ~ 0.30 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ACC ~ 0.60 in NCEP Cold Season Variability WRF and MM5 have similar skill in capturing cold season variability

  5. ACC ~ 0.80 ACC ~ 0.60 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ACC ~ 0.3 - 0.8 ACC ~ 0.3 - 0.4 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 ACC ~ 0.17 in NCEP ACC ~ 0.60 in NCEP Warm Season Variability Larger differences between WRF and MM5 skill in capturing warm season variability; differences traced to new vs old KF scheme

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