搜尋結果
keep using HWRF's detrainment rate Use the unified F-A microphysics scheme (consistent with the versions used in HMON and NAM) with bug fixes Use the exponential random cloud overlap method (cldovrlp=5) with a constant decorrelation length (idcor=0) ...
Department of Commerce // National Oceanic and Atmospheric Administration // 7 HFSA v0.1A: FV3-based Stand- Alone Regional HAFS coupled with HYCOM, NATL basin HAFS v0.1B: FV3-based Global- nest HAFS, no ocean coupling, NATL basin HAFS v0.1J: FV3-based Stand
The temperature in the troposphere usually decreases with height at the average lapse rate of 6.5 C per kilometer. The air in the troposphere is more unstable and with strong convection. Almost all the water vapor in the atmosphere exists within this layer; therefore, common weather phenomena such as clouds, fog, rain, and snow, occur only in this layer and more often than not in its lower part.
