| 中国地区云对地-气系统辐射强迫温度效应的气候研究 |
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| 引用本文： | 刘艳,翁笃鸣.中国地区云对地-气系统辐射强迫温度效应的气候研究[J].气象学报,2002,60(6):766-773. |
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| 作者姓名： | 刘艳 翁笃鸣 |
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| 作者单位： | 1. 南京气象学院环境科学系,南京,210044,国家气象中心,北京,100081
2. 南京气象学院环境科学系,南京,210044 |
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| 基金项目： | 海外青年学者合作研究基金 (批准号 :40 0 2 85 0 3)，国家攀登B计划项目“青藏高原试验”。 |
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| 摘 要： | 文中利用地球辐射平衡试验 (ERBE)和国际卫星云气候计划 (ISCCP)提供的地 气系统行星反射率、射出长波辐射 (OLR)和云量资料 ,计算了中国地区年、月平均总云量对地 气系统短波辐射、长波辐射以及净辐射强迫的温度效应和敏感性系数 ,并讨论了云对各辐射分量强迫的温度效应与总云量的关系。结果表明 :地 气系统云辐射强迫温度效应与总云量间具有较明显的曲线相关。云辐射强迫温度效应及其敏感性系数具有明显的时空变化特点。就中国全国平均而言 ,各月地 气系统云辐射强迫净温度效应一般表现为降温作用。
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| 关 键 词： | 地-气系统 云辐射强迫 云温度效应 |
| 修稿时间： | 2001年7月12日 |
CLIMATOLOGICAL STUDY OF TEMPERATURE EFFECTS OF LOUD-RADIATIVE FORCING IN THE EARTH-ATMOSPHERIC SYSTEM OVER CHINA |
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| Liu Yan and Weng Duming.CLIMATOLOGICAL STUDY OF TEMPERATURE EFFECTS OF LOUD-RADIATIVE FORCING IN THE EARTH-ATMOSPHERIC SYSTEM OVER CHINA[J].Acta Meteorologica Sinica,2002,60(6):766-773. |
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| Authors: | Liu Yan and Weng Duming |
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| Institution: | 1. National Climate Center, Beijing 100081, Department of Environmental Sciences, NIM, Nanjing 210044;2. Department of Environmental Sciences, NIM, Nanjing 210044;1. National Climate Center, Beijing 100081, Department of Environmental Sciences, NIM, Nanjing 210044;2. Department of Environmental Sciences, NIM, Nanjing 210044 |
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| Abstract: | Based on TOA monthly mean planetary albedo, outgoing longwave radiation(OLR) flux and total cloud cover from ERBE and ISCCP, cloud temperature effects and their sensitivity coefficients due to cloud-radiative forcing over China are studied. The relationship between temperature effects of cloud-radiative forcing and cloud amount is discussed. The results show that there is a nonlinear relationship between them. Both temperature effects and sensitivity coefficients have characteristics of spatial-temporal variation. On average, the temperature effect of cloud forcing in each month results in cooling of the earth's atmosphere over China. |
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| Keywords: | Earth-atmospheric system Cloud-radiative forcing Cloud temperature effects |
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