2024年12月20日 · The Special Sensor Microwave/Imager (SSM/I) is a seven-channel, four frequency, linearly-polarized, passive microwave radiometric system that measures atmospheric, ocean and terrain microwave brightness temperatures at 19.35, 22.235, 37.0 and 85.5 GHz.

The Special Sensor Microwave/Imager (SSM/I) is a seven-channel, four-frequency, linearly polarized passive microwave radiometer system. [1] It is flown on board the United States Air Force Defense Meteorological Satellite Program (DMSP) Block 5D-2 satellites.

The Special Sensor Microwave Imager (SSM/I) and the Special Sensor Microwave Imager Sounder (SSMIS) are satellite passive microwave radiometers. This series of instruments has been carried onboard Defense Meteorological Satellite Program (DMSP) satellites since 1987. These are near-polar orbiting satellites.

2022年6月1日 · ssm/i 它是 DMSP 卫星的主要仪器之一，用于测量大气、海洋和陆地微波亮温，从而解译得到大气水汽含量、液态水、降水、海面风速、海冰覆盖和陆地湿度等。

SSMIS improves upon the surface and atmospheric retrievals of the previous Special Sensor Microwave Imager (SSM/I). The sensor also builds on the success of the atmospheric temperature and water vapor sounding capabilities of both the Special Sensor Microwave Temperature Sounder (SSM/T-1) and the Special Sensor Microwave Humidity Sounder (SSM/T-2).

2025年1月7日 · The Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave/Imager (SSM/I) was a seven channel passive microwave radiometer which became operational in July 1987. The SSM/I series was replaced by an advanced sensor, the SSM/IS (Special Sensor Microwave Imager Sounder), which became operational in November of 2005.

The SSM/I is a seven-channel, four-frequency, linearly-polarized, passive microwave radiometric system which measures atmospheric, ocean and terrain microwave brightness temperatures at 19.35, 22.235, 37.0, and 85.5 GHz.

Abstract: The Special Sensor Microwave/Imager (SSM/I) instrument and scan geometry are briefly described. The results of investigations of the stability of the gain, calibration targets and spin rate, the radiometer noise and sensitivity, the coregistration, the beam width and main-beam efficiency of the antenna beams, and the absolute ...

The SSMI and SSMIS netCDF data product can be obtained from the Global Hydrology Resource Center (GHRC), one of NASA's Distributed Active Archive Centers (DAAC). Remote Sensing Systems generates SSM/I and SSMIS binary data products using a unified physically based algorithm that retrieves ocean wind speed, water vapor, cloud water, and rain rate.

SSM/I(Special Sensor Microwave/Image)是美国国防气象卫星计划（DMSP）卫星所携带的一台星载微波辐射计。 从1987年到1997年，它是世界上最先进，空间分辨率最高的星载被动微