基于<bold>CERES</bold>资料的中国西南地区云水含量和粒子有效半径分布及变化特征

林丹; 王维佳

doi:10.3878/j.issn.1006-9585.2019.18071

基于CERES资料的中国西南地区云水含量和粒子有效半径分布及变化特征

doi: 10.3878/j.issn.1006-9585.2019.18071

林丹¹,
王维佳^2,

1.
四川省人工影响天气办公室,成都 610072;中国气象局云雾物理环境重点实验室,北京 100081;高原与盆地暴雨旱涝灾害四川省重点实验室,成都610072
2.
中国气象局云雾物理环境重点实验室,北京 100081;成都市气象局,成都 610000

基金项目: 四川省科技计划项目2019YJ0621，中国气象局云雾物理环境重点实验室开放课题2017Z01610，2018年度留学回国人员科技活动项目择优资助项目2018-72，高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目省重实验室2018-青年-19、2018-重点-13四川省科技计划项目2019YJ0621，中国气象局云雾物理环境重点实验室开放课题2017Z01610，2018年度留学回国人员科技活动项目择优资助项目2018-72，高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目（省重实验室2018-青年-19、2018-重点-13）

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出版历程
- 收稿日期: 2018-06-11

Distribution and Variation of Cloud Water Content and Particle EffecticeRadius in Southwest China Based on CERES Data

Funds: Sichuan Science and Technology Plan Project (Grant 2019YJ0621), Research Program of the Key Laboratory for Cloud Physics of China Meteorological Administration (Grant 2017Z01610), Science and Technology Activity Funding Project for Overseas Returnees (Grant 2018-72), Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory Project Grants 2018-youth-19 and 2018-major-13Sichuan Science and Technology Plan Project (Grant 2019YJ0621), Research Program of the Key Laboratory for Cloud Physics of China Meteorological Administration (Grant 2017Z01610), Science and Technology Activity Funding Project for Overseas Returnees (Grant 2018-72), Heavy Rain and Drought-Flood Disasters in Plateau and Basin Key Laboratory Project (Grants 2018-youth-19 and 2018-major-13)

摘要

摘要: 利用NASA/CERES发布的2001～2015年云参数资料，选取高层云、雨层云、层积云的云水含量和云粒子有效半径，统计分析了西南地区云参数的时空分布特征和变化趋势。结果表明：从年均空间分布来看，西南地区液水和冰水含量均东部高于西部，海拔低的地区高于海拔高的地区；高层云和雨层云液相和冰相云粒子有效半径在川西高原最大。从数值大小来看，雨层云液水和冰水含量最多，分别介于90～230 g/m²和100～300 g/m²，层积云最少，分别介于0～80 g/m²和0～60 g/m²；冰相云粒子有效半径高于液相2～6 μm。从季节分布来看，雨层云液水和冰水含量秋季和冬季偏高，夏季和春季偏少，高层云和层积云季节差异较小；液相云粒子有效半径均夏季最大。从变化趋势来看，西南地区各地液水和冰水含量均呈减少趋势，液相和冰相云粒子有效半径有呈减少或增加趋势。
- 云水含量 /
- 粒子有效半径 /
- 云类型
Abstract: Based on the NASA/CERES 2001-2015 data of stratocumulus, altostratus, and nimbostratus liquid and ice water paths and particle radius, the temporal and spatial distributions and variations trend of cloud parameters in the Southwest China are analyzed in this study. The results show that according to annual spatial distribution, the annual liquid and ice water paths are greater in the east area than in the west area, and water paths are greater at low-latitude regions than at high-latitude regions. The annual altostratus and nimbostratus liquid and ice cloud particle radius in western Sichuan Plateau are the largest. The nimbostratus has the largest liquid and ice water paths between 90-230 g/m² and 100-300 g/m², respectively, stratocumulus has the least water path between 0-80 g/m² and 0-60 g/m², respectively. The ice cloud particle radius is larger than the liquid cloud particle radius by 2-6 μm. Considering the seasonal distribution, nimbostratus has the greatest liquid and ice water paths in autumn and winter and the least in summer and spring. There is less seasonal variation in stratocumulus and altostratus liquid and ice cloud water contents. The liquid cloud particle radius is the largest in summer. From the variation trend, the liquid and ice water paths of all types of clouds show a decreasing trend. The liquid and ice cloud particle radius of all types of clouds show a decreasing or increasing trend.
- Clound water content /
- Particle effective radius /
- Cloud type

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