| 中国地区夏季平均加热率的时空分布特征 |
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| 作者姓名： | YANG Da-Sheng WANG Pu-Cai |
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| 作者单位： | 中国气象局气象探测中心,中国科学院大气物理研究所中层大气与全球环境探测重点实验室 |
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| 基金项目： | supported by the National Natural Science Foundation of China(Grant Nos.40875084and40705012);the National Key Technologies R&D Program of China(Grant No.2008BAC40B00) |
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| 摘 要： |
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| 修稿时间： | 9/1/2010 12:00:00 AM |
Spatial Distributions of Atmospheric Radiative Fluxes and Heating Rates over China during Summer |
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| YANG Da-Sheng,WANG Pu-Cai.Spatial Distributions of Atmospheric Radiative Fluxes and Heating Rates over China during Summer[J].Atmospheric and Oceanic Science Letters,2010,3(5):248-251. |
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| Authors: | YANG Da-Sheng and WANG Pu-Cai |
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| Institution: | 1 Key Laboratory for the Middle Atmosphere and Global Environmental Observation (LAGEO), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 2 Meteorological Observation Center, China Meteorological Administration, Beijing 100081, China 3 Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The latitude-altitude distributions of radiative fluxes and heating rates are investigated by utilizing CloudSat satellite data over China during summer. The Tibetan Plateau causes the downward shortwave fluxes of the lower atmosphere over central China to be smaller than the fluxes over southern and northern China by generating more clouds. The existence of a larger quantity of clouds over central China reflects a greater amount of solar radiation back into space. The vertical gradients of upward shortwave radiative fluxes in the atmosphere below 8 km are greater than those above 8 km. The latitudinal-altitude distributions of downward longwave radiative fluxes show a slantwise decreasing trend from low latitudes to high latitudes that gradually weaken in the downward direction. The upward longwave radiative fluxes also weaken in the upward direction but with larger gradients. The maximum heating rates by solar radiation and cooling rates by longwave infrared radiation are located over 28-40°N at 7-8 km mean sea level (MSL), and they are larger than the rates in the northern and southern regions. The heating and cooling rates match well both vertically and geographically. |
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| Keywords: | radiative flux shortwave heating rate longwave cooling rate vertical distribution temporal and spatial distribution CloudSat Cloud Profiling Radar |
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