Brightness Temperature Obtained from Global Precipitation Measurement Mission's Dual-Frequency Precipitation Radar

Kaya Kanemaru, Toshio Iguchi, Atsushi Hamada

研究成果: 書籍の章/レポート/会議録会議への寄与査読

抄録

This study describes a calculation of the brightness temperature obtained from the spaceborne precipitation radar to utilize possible uses of precipitation estimates. Since the radar viewed from space measures emission and scattering signals from the earth, the brightness temperature at the radar's frequency is obtained from the noise power measured by the radar. The measurement accuracy of the radar's brightness temperature is also computed from the signal characteristics of the noise power. This study analyzes the noise power data of the Dual-frequency precipitation radar (DPR), whose frequency is at 13.6 and 35.5 GHz, onboard the Global Precipitation Measurement mission's (GPM's) core satellite. The calibrated brightness temperature data obtained from the DPR show the regional gradient between ocean and land surfaces and the emission signal from precipitation even if the measurement accuracy of the radar's brightness temperature is about 30 (50) K for the Ku-band (Ka-band) channel.

本文言語英語
ホスト出版物のタイトル2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Proceedings
出版社Institute of Electrical and Electronics Engineers Inc.
ページ5384-5387
ページ数4
ISBN(電子版)9781728163741
DOI
出版ステータス出版済み - 2020/09/26
イベント2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020 - Virtual, Waikoloa, 米国
継続期間: 2020/09/262020/10/02

出版物シリーズ

名前International Geoscience and Remote Sensing Symposium (IGARSS)

学会

学会2020 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020
国/地域米国
CityVirtual, Waikoloa
Period2020/09/262020/10/02

ASJC Scopus 主題領域

  • コンピュータ サイエンスの応用
  • 地球惑星科学一般

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