Using double Γ function to make fitting, the effect of fitting in altostratus is better, but not better in nimbostatts;

利用二階Γ函數(shù)擬合在高層云中的效果較好，但在雨層云中的效果相對較差；

Secondly, the research data, which use the cloud classification productions of National Satellite Meteorological Center as types' labels, are divided into Land, Mixed cloud, Altostratus or Nimbostratus, Cirrostratus, Cirrus Spissatus, Cumulonimbus and Stratocumulus or Altocumulus.

第二，每個數(shù)據(jù)的類別標(biāo)簽參考國家衛(wèi)星氣象中心的云分類產(chǎn)品結(jié)果，將實驗數(shù)據(jù)劃分為地表、混合像元、高層云或雨層云、卷層云、密卷云、積雨云以及層積云或高積云7類。