Radiative effects of the cloudy atmosphere from ground and satellite based observations
Radiative effects of the cloudy atmosphere from ground and satellite based observations
复制标题
地面和卫星观测对多云大气的辐射影响
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
K. Bumke
中科院分区：
文献类型：
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作者：
A. Macke;J. Kalisch;Yann Zoll;K. Bumke
在热带、亚热带和中纬度条件下，地面观测和参数化所得的辐射收支与沿北大西洋和南大西洋的德国破冰船Polarstein号巡航轨道上的卫星观测所得的辐射收支相结合。2008至2010年间，德国莱布尼茨-OCEANET网络参与了6次往返德国不来梅港、智利南部蓬塔阿雷纳斯或南非开普敦的转账活动。本章举例介绍了大气测量和由此产生的辐射产品。得到了以下特征：标准气象资料、向下的宽带太阳和热辐射、水下光谱辐照度廓线、潜热和感热通量、湿度和温度廓线、水汽和液态水路径、气溶胶光学厚度和气溶胶光学厚度垂直廓线、云量和云型。对不同类型的海洋云进行了表面云辐射效应的测定。与气象卫星上SEVIRI辐射计的大气顶部辐射通量一起，确定了云对大气加热或冷却的影响。由此得到的云/辐射相关性将有助于量化云对地表、TOA和大气辐射收支的影响，并评估气候模式模拟这些影响的能力。
The radiation budget from surface observations and parameterizations is combined with that from satellite observations along the cruise tracks of the German icebreaker POLARSTERN in the North and South Atlantic under tropical, subtropical and mid-latitude conditions. Between 2008 and 2010 The German Leibniz-network OCEANET participated in six transfers from or to Bremerhaven, Germany to or from Punta Arenas, Southern Chile or Cape Town, South Africa. The present chapter introduces exemplarily the atmospheric measurements and resulting radiation products. The following properties are derived: Standard meteorological data, broadband downward solar and thermal irradiances, underwater profiles of spectral irradiance, latent and sensible heat fluxes, humidity and temperature profiles, water vapour and liquid water path, aerosol optical thickness and vertical profiles of aerosol optical thickness, cloud cover and cloud type. Cloud radiative effects at the surface have been determined for different marine cloud types. Together with top-of-atmosphere radiation fluxes from the SEVIRI radiometer onboard METEOSAT, the effect of clouds on atmospheric heating or cooling have been determined. The resulting cloud/radiation correlations will help to quantify the effects of clouds on the surface, ToA- and atmospheric radiation budget and to evaluate the ability of climate models to simulate these effects.