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

Distribution and Variation of Cloud Water Content and Particle EffecticeRadius in Southwest China Based on CERES Data
摘要点击 372  全文点击 193  投稿时间:2018-06-11  
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基金:  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)
中文关键词:  云水含量  粒子有效半径  云类型
英文关键词:  Clound water content  Particle effective radius  Cloud type
     
作者中文名作者英文名单位
林丹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
王维佳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
引用:林丹,王维佳.2019.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[J].气候与环境研究,24(3):383-395,doi:10.3878/j.issn.1006-9585.2019.18071.
Citation:.2019.Distribution and Variation of Cloud Water Content and Particle EffecticeRadius in Southwest China Based on CERES Data[J].Climatic and Environmental Research(in Chinese),24(3):383-395,doi:10.3878/j.issn.1006-9585.2019.18071.
中文摘要:
      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。
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.
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