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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Development of a Rapid Retrieval Method for Cloud Optical Thickness and Cloud-Top Height Using Himawari-8 Infrared Measurements
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Development of a Rapid Retrieval Method for Cloud Optical Thickness and Cloud-Top Height Using Himawari-8 Infrared Measurements

机译：利用HIMAWARI-8红外测量的云光学厚度和云顶部高度的快速检索方法的开发

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We have developed a rapid simplified algorithm to retrieve cloud optical thickness and cloud-top height from measurements of the infrared split-window bands of Himawari-8. The method is based on a rapid calculation model for clear-sky brightness temperatures and empirical equations for cloud, for which the coefficients are determined by a fit to a more rigorous radiative-transfer model. This method can be applied regardless of regions excluding the polar regions and season by taking into account the temperature, humidity, sea surface temperature, and surface emissivity. In this study, we have demonstrated that this method captures well the diurnal cycle of cloud amounts of different cloud types in the warm-pool region around Indonesia. With an accelerated retrieval process by a factor of around 1,000 compared with the the physics-based retrieval, our rapid cloud retrieval algorithm yielded cloud amounts that agree quantitatively with those from a more rigorous, physics-based cloud retrieval method.
机译：我们开发了一种快速简化的算法，可以从HimaWari-8的红外分裂窗带的测量中检索云光学厚度和云顶部高度。该方法基于用于云的清晰天空亮度温度和经验方程的快速计算模型，其系数由适合于更严格的辐射转移模型确定。无论通过考虑温度，湿度，海表面温度和表面发射率，无论不包括极地区域和季节排除的区域如何，都可以应用这种方法。在这项研究中，我们已经证明，该方法在印度尼西亚周围的温池区域中捕获了不同云类型的不同云类型的日循环。随着加速的检索过程，与基于物理的检索相比，我们的快速云检索算法比较大约1,000倍，我们的快速云检索算法产生了与从基于物理的云检索方法的更严格，物理的云检索方法相加的云量。

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