GPM science status in Japan

Kenji Nakamura; Riko Oki; Toshio Iguchi

doi:10.1117/12.977256

9 November 2012 GPM science status in Japan

Kenji Nakamura, Riko Oki, Toshio Iguchi

Proceedings Volume 8528, Earth Observing Missions and Sensors: Development, Implementation, and Characterization II; 85281B (2012) https://doi.org/10.1117/12.977256
Event: SPIE Asia-Pacific Remote Sensing, 2012, Kyoto, Japan

Abstract

The Global Precipitation Measurement (GPM) is a successor to the Tropical Rainfall Measuring Mission (TRMM) which has opened a new era for precipitation system measurement from space. The scope of GPM is much wider than that of TRMM. GPM will provide three hourly precipitation observation over the globe, that is, much higher temporal resolution with wider coverage than TRMM. Current precipitation measurement is far from enough for the water resources management which requires very high spatial and temporal resolution. The three hourly global precipitation observation with GPM which will be attained by international collaboration with microwave radiometers will greatly contribute not only to the precipitation sciences but also to real-world applications. GPM consists of a core satellite and constellation satellites (Fig. 1). The GPM core satellite will be equipped with a dual-wavelength radar (DPR) and a microwave radiometer, and will work to provide reference standard for the GPM constellation radiometers. Development of DPR, the key instrument, has already been completed and delivered to NASA by JAXA. Ground measurements of precipitation using newly developed Ka-radar system for DPR algorithm development are undergoing. The rain retrieval algorithms are being developed with close collaboration with NASA.

Citation Download Citation

Kenji Nakamura, Riko Oki, and Toshio Iguchi "GPM science status in Japan", Proc. SPIE 8528, Earth Observing Missions and Sensors: Development, Implementation, and Characterization II, 85281B (9 November 2012); https://doi.org/10.1117/12.977256

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