Pubblicazione scientifica

Global Precipitation Measurement (GPM) Microwave Imager (GMI) After Four Years On-Orbit

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità

RIASSUNTO

The Global Precipitation Measurement (GPM) Microwave Imager (GMI) launched aboard the GPM Core Observatory as a joint mission between the National Aeronautics and Space Administration (NASA) and the Japanese Aerospace Exploration Agency (JAXA) has operated with high stability for four years. The noise equivalent delta temperature (NEDT) for each channel has be exceptionally stable. Non-linearity as measured using the 4-point calibration technique has been shown to be stable within +/-0.02K. Calibration features such as the hot load, cold sky reflector and main reflector coating continue to provide high quality calibration with no discernable degradation of performance. The on-orbit trending of calibration is facilitated using the on-board noise sources. The antenna was calibrated on-orbit to within 0.25K 1-sigma over the ocean.

DATA

Data di pubblicazione: 01/03/2018

AUTORI

DAVID DRAPER
DAVID NEWELL

ENTE DI AFFERENZA

BALL AEROSPACE & TECH CORP BOULDER COLORADO USA

RIVISTA

2018 IEEE 15th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad) (Page(s): 1-4)

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