基于CERES资料的山区低层云特性时空变化研究  

Spatial and temporal variation in lower layer cloud properties over mountains based on CERES data

作　　者：邱学兴 张萍[2] 陈勇航[2] 张国庆[3] 崔彩霞[4] 武志婷[2] 张栋[2] 桂丽娜[2] 

机构地区：[1]安徽省气象台,合肥230031 [2]东华大学环境科学与工程学院,上海201620 [3]青海省气象局,西宁810001 [4]中国气象局乌鲁木齐沙漠气象研究所,乌鲁木齐830002

出　　处：《兰州大学学报（自然科学版）》2012年第3期46-51,共6页Journal of Lanzhou University(Natural Sciences)

基　　金：国家科技部公益性行业科研专项(GYHY201106007;GYHY201006012);国家自然科学基金项目(41175026)

摘　　要：采用NASA地球观测系统"云与地球辐射能量系统"的2003年1月至2007年12月CERES SSF AquaMODIS Edition 1B/2B/2C云资料,分析了中国新疆的天山、阿尔泰山和昆仑山三大山区低层云的云量、云冰水柱含量和液态水柱含量及云有效高度的时空变化特征.结果表明:三大山区的低层云的云量、云冰水柱含量和云有效高度在6-8月达到高值,区域平均最高值分别为30.1%～32.3%,183.7～247.3 g/m2和4.11～6.20 km;低值出现在10月至次年3月,最低值分别为18.0%～20.1%,29.1～47.7 g/m2和2.66～5.33 km.而三大山区云液态水柱含量高值出现在12月至次年1月,最大为64.0～104.2 g/m^2,低值主要出现在7-10月和3-4月,最小值为36.1～41.0 g/m^2.The multi-year average spatial and temporal variation in lower layer cloud properties, including cloud amount, liquid water path, ice water path and effective height, over the Tianshan, Altai and Kunlun mountain ranges in Xinjiang were analyzed using CERES SSF Aqua MODIS Edition 1B/2B/2C data from January 2003 to December 2007 obtained from CERES of NASA＇s EOS. The results showed that the higher values for lower layer cloud amount, cloud ice water path and cloud effective height over the three mountain ranges occurred from June to August, with the range of 30.1%-32.3%, 183.7-247.3 g/m2 and 4.11-6.20 km, respectively; The lower values occurred from December to March, with the range of 18.0%-20.1%, 29.1%-47.7 g/m2 and 2.66-5.33 km respectively. However, the higher values for cloud liquid water path existed from December to January of the following year, ranging from 64.0-104.2 g/m2; the lower values mainly appeared from July to October and February to April, with the smallest values ranging from 36.1-41.0 g/m2.

关 键 词：低层云 云量 云液态水柱 冰水柱 云有效高度 

分 类 号：P339[天文地球—水文科学]