FSU FGGE IIIb Omega Analyses

Florida State University used uninitialized u- and v-component winds from the ECMWF IIIb analyses to calculate twice-daily vertical velocity omega grids for the full FGGE year (December 1, 1978 to November 30, 1979). Divergence corrections were applied for Dines compensation, and the effect of orography was introduced via a simple advective algorithm applied to 1000 millibars. The final omegas were evaluated for the same fifteen pressure levels where the horizontal wind components were analyzed.

佛罗里达州立大学利用欧洲中期天气预报中心（ECMWF）IIIb分析场中的未初始化u和v分量风场，计算了整个FGGE年份（1978年12月1日至1979年11月30日）的每日两次垂直速度ω网格。为实现迪恩斯补偿（Dines compensation），研究人员施加了辐散订正；地形效应则通过应用于1000毫巴的简单平流算法引入。最终的ω值在水平风分量分析所用的相同15个气压层上进行了评估。