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TRMM Microwave Imager (TMI) updates for final data version release

机译:TRMM微波成像仪(TMI)更新,以发布最终数据版本

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The Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) dataset released by the Precipitation Processing System (PPS) will be updated to a final version within the next year. These updates are based on increased knowledge in recent years of radiometer calibration and sensor performance issues. In particular, the Global Precipitation Measurement (GPM) Microwave Imager (GMI) is used as a model for many of the TMI version updates. This paper discusses four aspects of the TMI data product that will be improved: spacecraft attitude, calibration and quality control, along-scan bias corrections, and sensor pointing accuracy. These updates will be incorporated into the final TMI data version, improving the quality of the data product and ensuring accurate geophysical parameters can be derived from TMI.
机译:降水处理系统(PPS)发布的热带雨量测量任务(TRMM)微波成像仪(TMI)数据集将在明年更新为最终版本。这些更新是基于近年来对辐射计校准和传感器性能问题的了解增加。特别是,全球降水量测量(GPM)微波成像仪(GMI)被用作许多TMI版本更新的模型。本文讨论了将要改进的TMI数据产品的四个方面:航天器姿态,校准和质量控制,沿扫描方向的偏差校正以及传感器指向精度。这些更新将合并到最终的TMI数据版本中,从而提高数据产品的质量并确保可以从TMI导出准确的地球物理参数。

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