Radiation Budget of the Tropical Intraseasonal Oscillation
Radiation Budget of the Tropical Intraseasonal Oscillation
复制标题
热带季节内振荡的辐射收支
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
B. Mapes
中科院分区：
文献类型：
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作者：
Jialin Lin;B. Mapes
摘要本文利用大气辐射测量（ARM）计划和热带海洋全球大气耦合海气响应试验的资料，利用同期的大气层顶（TOA）和地面辐射通量测量，研究了热带地区降水和辐射加热在季节内时间尺度上的关系（TOGA COARE）实验]以及长期TOA通量数据[来自地球辐射收支实验（埃尔贝）和高级甚高分辨率辐射计（AVHRR）卫星数据]。不同的资料一致地表明，大气积分辐射加热与降水几乎同步，并使净凝结加热增加约10%-15%。在潮湿的时期，这种辐射变暖的主要贡献是减少TOA出射长波辐射（OLR），主要是由云，但与水蒸气的小贡献。这种辐射加热略有减少，增强表面下井…
Abstract This study examines the relationship between precipitation and radiative heating on intraseasonal time scales in the Tropics using collocated top-of-atmosphere (TOA) and surface radiative flux measurements from special field program data [Atmospheric Radiation Measurement (ARM) Program and Tropical Ocean Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) experiments] as well as long-term TOA flux data [from Earth Radiation Budget Experiment (ERBE) and Advanced Very High Resolution Radiometer (AVHRR) satellite data]. All the different datasets consistently show that the atmosphere-integrated radiative heating is nearly in phase with the precipitation and enhances the net condensation heating by about 10%–15%. The dominant contribution to this radiative warming during wet periods is the reduction of TOA outgoing longwave radiation (OLR), primarily by clouds but with a small contribution by water vapor. This radiative heating is reduced slightly by enhanced surface downwelli...