Determination and Impacts of Surface Radiative Fluxes for TOGA COARE

为支持TOGA/COARE目标，该项目研究西太平洋暖池区的地表辐射过程。该方案的目标是为整个TOGA COARE主域提供空间分辨率为30公里、时间分辨率为3小时的海面“皮肤”温度、可降水量、云特性以及表面长波和短波辐射通量的分量的分析。用于分析的数据将主要通过卫星遥感获得，国际气候变化框架公约的数据集和算法将发挥重要作用。现有的地面和飞机数据将用于验证遥感算法，还将与卫星反演的最终分析产品相结合。提出了一个专门用于研究云辐射特性和验证卫星获取的地表通量的航空子程序。拟议的研究将分三个阶段完成：i)开发和比较卫星算法的遥感试点研究；ii)利用TOGA COARE IOP地面和飞机观测验证遥感算法，并准备IOP的高分辨率分析；iii)利用分析的领域进行诊断和研究建模研究。将进行天气和中尺度大气聚焦的诊断通量。将使用海洋混合层模式研究海洋混合层对表面辐射通量波动的时间响应。海洋混合层模式将与大气辐射对流模式相结合，以评估大气和海洋边界层之间发生的辐射和云反馈。这项研究很重要，因为它是TOGA/COARE对世界敏感区域--西太平洋--TOGA/COARE现场的过程进行的主要研究之一。

In support of the TOGA/COARE objectives, this project is a study of the surface radiative processes in the western Pacific warm pool region. The objective of the program is to provide analyses of: sea-surface "skin" temperature, precipitable water, cloud properties, and components of the surface longwave and shortwave radiative fluxes, with spatial resolution of 30 km and temporal resolution of 3 hours for the entire TOGA COARE primary domain. The data for the analyses will be obtained principally by satellite remote sensing, with the ISCCP data set and algorithms playing a substantial role. Available surface and aircraft data will be utilized to validate the remote sensing algorithms and will also be blended with the satellite retrievals for the final analysis products. An aircraft sub-program is proposed specifically to investigate cloud-radiative properties, and to validate the satellite-derived surface fluxes. The proposed research will be accomplished in three stages: i) remote sensing pilot study to develop and compare satellite algorithms; ii) validation of remote sensing algorithms using TOGA COARE IOP surface and aircraft observations and preparation of high-resolution analyses for the IOP; and iii) diagnostic and studies modeling studies utilizing the analyzed fields. Diagnostic fluxes by synoptic and mesoscale atmospheric focing will be conducted. The temporal response of the ocean mixed layer to fluctuations in the surface radiative fluxes will be examined using an ocean mixed-layer model. The ocean mixed-layer model will be coupled to an atmospheric radiative-convective model to assess the radiative and cloud feedbacks occurring between the atmospheric and oceanic boundary layers. This research is important because it serves as one of the principal TOGA/COARE studies of the processes responsible for sensitive region of the world, the western Pacific Ocean, the field site of TOGA/COARE.