利用黄山地区地基观测对FY-2E云分类的检验和验证  

Analysis on the Relationship between the Cloud Classifications of FY-2E Satellite Remote Sensing and Observations of Ground Base

作　　者：杨牧田 金莲姬[1] 

机构地区：[1]南京信息工程大学中国气象局气溶胶与云降水重点开放实验室,南京210044

出　　处：《科学技术与工程》2015年第36期5-14,共10页Science Technology and Engineering

基　　金：国家自然科学基金重点项目(41030962)资助

摘　　要：利用2011年6~8月黄山及周边地区的地基观测云状结果与风云二号E（FY-2E）静止卫星云分类产品,分析了二者的匹配情况。结果表明：地面观测结果为晴空陆地、层积云/高积云、雨层云/高层云、密卷云、卷层云和积雨云时,卫星产品的匹配率分别为94.05%、45.92%、20.33%、3.01%、0%和0%;FY-2E静止卫星容易将积雨云识别成卷层云,密卷云或层积云/高积云产品,而易将大部分的雨层云识别成卷层云,密卷云和层积云/高积云产品;若天空为双层云并且中云为高积云时,那么＂低云-高积云-无高云＂天空条件时的高积云匹配率要高于＂无低云-高积云-高云＂;而当中云为高积云,同时存在低云和高云时,那么＂层积云-高积云-高云＂天空条件时的层积云/高积云产品匹配率要高于＂非层积云（积云或积雨云）-高积云-高云＂;其次,虽然地基观测结果中包含大量积云时刻,但卫星云分类产品中不包含积云产品。By comparing the ground based cloud form product and FY-2E geostational satellite products in Mount Huang and the neighboring region from June to August,2011,the matching status are analyzed. It is found that the matching rates are 94. 5%,45. 92%,20. 33%,3. 01%,0% and 0% when ground observation are clear sky land,stratocumulus / altocumulus,nimbostratus / altostratus,cirrus spissatus,cirrostratus and cumuionimbus,respectively. The cumuionimbus are prone to be recognized as cirrostratus,cirrus spissatus or stratocumulus altocumulus and the nimbostratus are mostly be recognized as cirrostratus,cirrus spssatus or stratocumulus / altocumulus by satellite products. When the sky is double layer cloud and the middle cloud is altocumulus,the matching rate in＂low cloud-altocumulus-no high cloud＂is higher than in the ＂no low cloud-altocumulus-high cloud＂condition.When the middle cloud is altocumulus and there are low and high cloud,the matching rate of stratocumulus / altocumulus product is higher in＂stratocumulus-altocumulus-high cloud＂than in＂cumulus or cumuionimbus-altocumulushigh cloud＂. There are large amounts of cumulus in the ground observation,while the cumulus products are not included in the satellite products.

关 键 词：云分类 地基观测 FY-2E静止卫星 

分 类 号：P426.56[天文地球—大气科学及气象学]