模式:

557WW: "557th Weather Wing Ensemble" The US Air Force’s 557th Weather Wing creates the Global Ensemble Prediction Suite (GEPS) twice per day by ingesting 63 global forecast model runs produced by three operational numerical modeling centers and creating tailored statistical ensemble forecasts. Products include probabilities for precipitation and snowfall, and means/standard deviations of temperature, wind, pressure, height, and relative humidity. 240 hours of one-degree gridded forecast output is produced at 6 hour intervals on the 00Z and 12Z cycle.

更新:
2 times per day, from 06:00 and 18:00 UTC
格林尼治平时:
12:00 UTC = 20:00 北京时间
Resolution:
1° x 1°
参量:
RH 700 hPa:
700百帕等压面相对湿度
描述:
这幅图反映700百帕等压面的相对湿度。 在槽前或锋区附近,暖空气被抬升。当上升空气冷却时, 其相对湿度增加,有时导致水汽凝结,形成云。 这个过程称为锋面抬升。700百帕(相当于3000米左右高度)高相对湿度区说明当地有抬升, 因此是天气活跃区。