东亚单层低云特性及其短波辐射强迫的季节变化

干旱区研究 ›› 2020, Vol. 37 ›› Issue (1): 37-45.

东亚单层低云特性及其短波辐射强迫的季节变化

司钰文¹，郑宁¹，杨洪海¹，陈勇航¹，刘琼¹，夏俊荣²，张华³

1.东华大学环境与科学工程学院，上海 201620； 2. 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，江苏南京 210044； 3. 中国气象科学研究院灾害天气国家重点实验室，北京，100081

收稿日期:2019-07-09 修回日期:2019-09-05 出版日期:2020-01-15 发布日期:2020-01-15
通讯作者: 陈勇航
基金资助:
科技部国家重点研发计划（ 2017YFA0603502）；中国沙漠气象科学基金（SJM201506009）；国家自然科学基金项目（41675026 、41175026）资助

Seasonal Variation of Single-layer Low Cloud Physical Properties and Radiative Forcing in East Asia

SI Yu-wen¹, ZHENG Ning¹,YANG Hong-hai¹, CHEN Yong-hang¹, LIU Qiong¹, XIA Jun-rong², ZHANG Hua³

1. College of Environmental Science and Engineering, Donghua University,Shanghai 201620,China;
2. Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration,NUIST,Nanjing 210044,Jiangsu,China;
3. State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing 100081, China

Received:2019-07-09 Revised:2019-09-05 Online:2020-01-15 Published:2020-01-15
About author:司钰文（1995-），女，硕士研究生，主要从事遥感卫星太阳辐射研究.E-mail:18321158192@163.com

摘要/Abstract

摘要：

利用云与地球辐射能量系统CERES（Clouds and the Earth's Radiant Energy System）资料，对2003—2016年东亚不同区域单层低云物理属性及地面短波辐射强迫的季节时空分布特征进行研究。结果表明：① 在空间分布上，辐射强迫与单层低云量在春秋两季有着较好的相似性，而与冰/液态水柱含量在春、夏、秋三个季节有着较好的一致性。 ② 在时间变化上，北方地区夏季的单层低云对短波辐射的削弱作用是最强的；南方地区和西北地区最强的削弱作用发生在春季；东部海域则发生在冬季。在空间分布上，春、秋、冬季最强的低云削弱效应在南方地区。夏季，东亚低云对短波辐射的削弱作用各区域都较弱，大部分区域的负辐射强迫的绝对值小于200 W^●m^-2。

关键词: 单层云, 低云, 云物理属性, 短波辐射强迫, 东亚地区

Abstract: The data from Clouds and the Earth's Radiant Energy System were used to study the distribution of low-cloud physical properties and downward shortwave radiative forcing in different regions of East Asia from 2003 to 2016. The results are as follows: ① The variation of single-layer low cloud radiation forcing was similar with the single-layer low cloud fraction in spring and autumn, and there was a good consistency with the ice/liquid water path in spring, summer and autumn; ② Temporally, the weakening effect of single-layer low cloud on shortwave radiation was the strongest in the north and west in summer. The strongest weakening effect in the south and northwest occurred in spring; that in the eastern ocean occurred in winter. In terms of spatial distribution, except for summer, the strongest single-layer low cloud weakening effect in other seasons occurred in the south. In summer, the single-layer low cloud in the East Asia had a weaker effects on shortwave radiation, and the absolute value of the radiation forcing was less than 200 W^·m^-2.

Key words: single-layer cloud, low cloud, cloud physical property, shortwave radiative forcing, East Asia

司钰文 , 郑宁, 杨洪海, 陈勇航, 刘琼, 夏俊荣, 张华.

东亚单层低云特性及其短波辐射强迫的季节变化 [J]. 干旱区研究, 2020, 37(1): 37-45.

SI Yu-wen, ZHENG Ning, YANG Hong-hai, CHEN Yong-hang, LIU Qiong, XIA Jun-rong, ZHANG Hua. Seasonal Variation of Single-layer Low Cloud Physical Properties and Radiative Forcing in East Asia[J]. Arid Zone Research, 2020, 37(1): 37-45.

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