基于卫星遥感的祁连山及甘肃中部地区云宏观特征

doi:10.13866/j.azr.2019.03.23

干旱区研究 ›› 2019, Vol. 36 ›› Issue (3): 712-722.doi: 10.13866/j.azr.2019.03.23

基于卫星遥感的祁连山及甘肃中部地区云宏观特征

宋琦明^1,2, 张武¹, 苏亚乔¹, 陈艳¹, 杨昆³, 赵桂清², 曹刚⁴

1.兰州大学大气科学学院, 半干旱气候变化教育部重点实验室,甘肃兰州 730000;
2.中国人民解放军95171部队,广东广州 510000;
3.中国人民解放军93886部队,新疆乌鲁木齐 830001;
4.中国酒泉卫星发射中心,甘肃酒泉 735000

收稿日期:2018-12-27 修回日期:2019-01-25 发布日期:2025-10-18
通讯作者: 张武. E-mail: wzhang@lzu.edu.cn
作者简介:宋琦明(1991-),男,在读硕士,研究方向为云物理与人工影响天气. E-mail:songqm16@lzu.edu.cn
基金资助:
国家重点研发计划专项项目(2016YFC0401003);国家自然科学基金重点项目(41430425);国家重大科学研究计划项目(2012CB955302);中央高校基本科研业务费专项资金资助(lzujbky-2017-62)资助

Cloud Macro-Features over the Qilian Mountains and Central Gansu Based on Satellite Remote Sensing

SONG Qi-ming^1,2, ZHANG Wu¹, SU Ya-qiao¹, CHEN yan¹, YANG Kun³, ZHAO Gui-qing², CAO Gang⁴

1. College of Atmospheric Sciences,Lanzhou University,Key Laboratory of Semiarid Climate Change under the Ministry of Education,Lanzhou 730000,Gansu,China;
2. Unit 95171 of PLA,Guangzhou 510000,Guangdong,China;
3. Unit 93886 of PLA,Urumqi 830001,Xinjiang,China;
4. Jiuquan Satellite Launch Center,Jiuquan 735000,Gansu,China

Received:2018-12-27 Revised:2019-01-25 Online:2025-10-18

摘要/Abstract

摘要： 利用2007—2010年CloudSat和CALIPSO卫星遥感资料以及中国国家气象信息中心(CMDC)提供的地面降水资料(1996—2016年),对祁连山区、甘肃中部及石羊河流域的不同云类型宏观特征进行了分析。结果表明:各研究区域总云分数的季节变化较一致,较大值出现在春夏季,均超过70%。总云分数的高值区主要集中在祁连山南坡,与降水量高值区分布一致。积状云云分数最大值出现在夏季,积状云降水频率高于层状云。云层以单层云为主,云厚度均超过2.0 km,春季甘肃中部的单层云厚度最大达3.0 km;2层云夹层比3层云的夹层厚度要厚。产生降水的云中积状云和单层云的发生频率较高。各区域云频率随高度分布趋势大致相同,层状云出现的高度在距地表0.5 km到12.0 km,云频率峰值均在高度6.0 km左右出现;积状云云频率随高度分布较层状云明显偏低,峰值出现在1.5 km左右高度。

关键词: 云, 降水, CloudSat, CALIPSO, 祁连山, 甘肃

Abstract: In this study,the CloudSat and CALIPSO satellite remote sensing data from 2007 to 2010 and the precipitation data provided by China National Meteorological Information Center (CMDC) from 1996 to 2016 were used to analyze the macroscopic characteristics of different cloud types over the Qilian Mountains,central Gansu Province and the Shiyang River Basin.The results showed that the seasonal variation of total cloud fraction over the each research area was consistent,and its high values occurred mostly in spring and summer.The areas with high values of total cloud fraction were mainly located in the southern slope of the Qilian Mountains as those with high values of precipitation.The maximum value of cumulus cloud fraction occurred in summer,and the precipitation frequency of cumulus cloud was higher than that of stratiform cloud.Single-layer cloud was dominant,and its thickness was over 2.0 km.The maximum thickness of single-layer cloud over central Gansu was 3.0 km in spring.The thickness of two-layer clouds was thicker than that of three-layer clouds.Cumulus cloud and single-layer cloud producing precipitation occurred more frequently.The distribution trend of cloud frequency with the height over each research area was similar,the altitude of stratiform cloud ranged from 0.5 km to 12.0 km in altitude,and the peak frequency appeared around 6.0 km in altitude.The distribution altitude of cumulus cloud frequency was obviously lower than that of stratiform cloud,and the peak value occurred around 1.5 km in altitude.

Key words: cloud, precipitation, CloudSat, CALIPSO, Qilian Mountains, Gansu

宋琦明, 张武, 苏亚乔, 陈艳, 杨昆, 赵桂清, 曹刚. 基于卫星遥感的祁连山及甘肃中部地区云宏观特征[J]. 干旱区研究, 2019, 36(3): 712-722.

SONG Qi-ming, ZHANG Wu, SU Ya-qiao, CHEN yan, YANG Kun, ZHAO Gui-qing, CAO Gang. Cloud Macro-Features over the Qilian Mountains and Central Gansu Based on Satellite Remote Sensing[J]. Arid Zone Research, 2019, 36(3): 712-722.

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基于卫星遥感的祁连山及甘肃中部地区云宏观特征

Cloud Macro-Features over the Qilian Mountains and Central Gansu Based on Satellite Remote Sensing

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