High cloud amount, cirrostratus、deep convective cloud amount are getting fewer from southwest to northeast.
东部地区总云量呈增加的趋势，中、西部地区呈减少的趋势。
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，每个数据的类别标签参考国家卫星气象中心的云分类产品结果，将实验数据划分为地表、混合像元、高层云或雨层云、卷层云、密卷云、积雨云以及层积云或高积云7类。
According to the observations in Part I, block pattern in summer and zonal belt pattern in winter concerning with tropical high clouds is like the corresponding patterns of Intertropical convergence zone (hereafter, ITCZ), and Cirrostratus and Cirrus can form locally without deep convective cloud.
观测表明，高云的夏季块状分布和冬季带状分布，与低层赤道辐合带的夏季与冬季的形状十分相似；并且卷云和卷层云可以独立于深对流单独存在。