Abstract:
These NCEP FNL (Final) Operational Global Analysis data are on pairs of 2.5x2.5 degree hemispheric grids every twelve hours. This product was from the Global Forecast System (GFS) that was run operationally in near-real time at NCEP. The analyses are available on the surface, 16 mandatory levels from 1000mb to 10mb, boundary layer and some sigma layers, tropopause, and a few others. Parameters
... include surface pressure, sea level pressure, geopotential height, temperature, sea surface temperature, soil temperature, water content of soil, ice cover, water equivalent of snow depth, relative humidity, specific humidity, u- and v-wind components, vertical motion, vorticity, precipitable water, minimum temperature, maximum temperature and land-sea mask More information is available. [http://rda.ucar.edu/datasets/ds083.0/more.html] 
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