J
Jun Yoshida
Researcher at NEC
Publications - 7
Citations - 161
Jun Yoshida is an academic researcher from NEC. The author has contributed to research in topics: Radiance & Geology. The author has an hindex of 3, co-authored 5 publications receiving 118 citations.
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Journal ArticleDOI
Update on GOSAT TANSO-FTS performance, operations, and data products after more than 6 years in space
Akihiko Kuze,Hiroshi Suto,Kei Shiomi,Shuji Kawakami,Makoto Tanaka,Yoko Ueda,Akira Deguchi,Jun Yoshida,Y. Yamamoto,Fumie Kataoka,Thomas E. Taylor,Henry Buijs +11 more
TL;DR: In this article, the performance of the satellite and TANSO-FTS sensor has been analyzed and a data set containing more than 6 years of radiance spectra for carbon dioxide (CO2) and methane (CH4) observations has been acquired by the greenhouse gases observing SATellite (GOSAT).
Journal ArticleDOI
Characterization and correction of spectral distortions induced by microvibrations onboard the GOSAT Fourier transform spectrometer
TL;DR: A correction algorithm has been developed to re-compute the interferograms at equally spaced sampling intervals to minimize the magnitude of the out-of-band ghosts artifacts after correction of the sampling grid.
Journal ArticleDOI
Examining partial-column density retrieval of lower-tropospheric CO2 from GOSAT target observations over global megacities
Akihiko Kuze,Yoshiyasu Nakamura,Tomohiro Oda,Jun Yoshida,Nobuhiro Kikuchi,Fumie Kataoka,Hiroshi Sato,Kei Shiomi +7 more
TL;DR: In this paper , the authors retrieved and examined the partial-column densities of carbon dioxide (CO2) in the lower and upper troposphere (XCO2LT and XCO2UT) collected over six global megacities: Beijing, New Delhi, New York City, Riyadh, Shanghai, and Tokyo.
Journal ArticleDOI
Calibration, Level 1 Processing, and Radiometric Validation for TANSO-FTS TIR on GOSAT
Fumie Kataoka,Robert O. Knuteson,Akihiko Kuze,Kei Shiomi,Hiroshi Suto,Jun Yoshida,Shinpei Kondoh,Naoko Saitoh +7 more
TL;DR: The updated calibration algorithm of the TANSO-FTS Level 1B TIR spectra and the radiometric validation of the new V210.210 product creates a decade-long, well-calibrated radiance set while minimizing the effect of two major anomalies: rotation stop of the one of the solar paddles in 2014 and a cryocooler shutdown in 2015, which caused abrupt changes in the Thermal and Near-Infrared sensor.
Proceedings ArticleDOI
GOSAT/TANSO Level 1 Algorithms - Toward 1ppm Accuracy of XCO2 from a Space-borne FTS
TL;DR: TANSO-FTS onboard GOSAT has acquired mainly CO2 and CH4 absorption spectra globally since 2009 as discussed by the authors, which has been used to improve the level 1 algorithms.