日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 A (大気水圏科学) » A-CG 大気海洋・環境科学複合領域・一般

[A-CG34] 衛星による地球環境観測

2019年5月30日(木) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:沖 理子(宇宙航空研究開発機構)、本多 嘉明(千葉大学環境リモートセンシング研究センター)、高薮 縁(東京大学 大気海洋研究所)、松永 恒雄(国立環境研究所地球環境研究センター/衛星観測センター)

[ACG34-P03] Sea surface temperature from SGLI aboard the GCOM-C satellite of JAXA

*Yukio Kurihara1緒方 一紀2村上 浩2可知 美佐子2 (1.Tripli-I Co., Ltd.、2.JAXA EORC)

The Global Change Observation Mission-Climate (GCOM-C) satellite, which is one of two satellites for the GCOM mission of the Japan Aerospace and Exploration Agency (JAXA), was launched on 23 December 2017. The Second Generation Global Imager (SGLI) is the optical sensor aboard GCOM-C which consists of two components: the Visible and Near-infrared Radiometer (VNR) and the Infrared Scanner (IRS). SGLI has switchable spatial resolution from 250 m x 250 m to 1 km x 1 km. The resolution of 250 m x 250 m is expected to reveal complicated structure of geophysical parameters. Sea surface temperature (SST), which is one of the important parameters in the geophysical field, is also determinable by using split window data of SGLI. SGLI SST is retrieved by utilization of newly developed cloud masking method and a modified SST method originally developed for Himawari-8. Considering combined utilization of satellite SSTs, the methods developed for SGLI SST will be applied back to Himawari-8 data as well as the data from the Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite. SGLI SST is validated by comparison with buoy data. The comparison result shows RMSD of ~0.4 K, good agreement between SGLI SSTs and buoy data. Triple comparison with Himawari-8 and VIIRS SSTs is being started. Operational retrieval of SGLI SST started at the end of 2018. The products are available at the G-Portal site of JAXA and the JAXA Satellite Monitoring and Environmental Studies (JASMES) site of the Earth Observation Center (EORC) of JAXA.