全球降水测量微波成像仪在轨定标

2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) Pub Date : 2016-04-11 DOI:10.1109/MICRORAD.2016.7530527

D. Draper, D. Newell, F. Wentz

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引用次数: 4

摘要

GMI在轨标定的改进涉及到一些直接测量关键标定参数的活动。这些活动包括1)使用噪声二极管的备用校准来测量方向，2)与其他卫星的相互比较，3)天文台姿态机动，以及4)长期平均冷计数。所得的GMI绝对校准精度在海洋上约为0.25K - 1 σ偏差。

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Global precipitation measurement microwave imager (GMI) On-orbit calibration

The refining of the GMI calibration on-orbit has involved a number of activities to directly measure key calibration parameters. The activities have included 1) using the backup calibration from the noise diodes to direction measure stability-related terms, 2) inter-comparison with other satellites, 3) observatory attitude maneuvers, and 4) long-term averaging of cold counts. The resulting GMI absolute calibration accuracy is about 0.25K 1-sigma bias over the ocean.

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2016 14th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)

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