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Proceedings Paper

Preliminary validation of Himawari-8/AHI navigation and calibration
Author(s): Arata Okuyama; Akiyoshi Andou; Kenji Date; Keita Hoasaka; Nobutaka Mori; Hidehiko Murata; Tasuku Tabata; Masaya Takahashi; Ryoko Yoshino; Kotaro Bessho
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Paper Abstract

The next-generation geostationary meteorological satellite of the Japan Meteorological Agency (JMA), Himawari-8, entered operation on 7 July 2015. Himawari-8 features the new 16-band Advanced Himawari Imager (AHI), whose spatial resolution and observation frequency are improved over those of its predecessor MTSAT-series satellites. These improvements will bring unprecedented levels of performance in nowcasting services and short-range weather forecasting systems. In view of the essential nature of navigation and radiometric calibration in fully leveraging the imager’s potential, this study reports on the current status of navigation and calibration for the AHI. Image navigation is accurate to within 1 km, and band-to-band co-registration has also been validated. Infrared-band calibration is accurate to within 0.2 K with no significant diurnal variation, and is being validated using an approach developed under the GSICS project. Validation approaches are currently being tested for the visible and near-infrared bands. In this study, two of such approaches were compared and found to produce largely consistent results.

Paper Details

Date Published: 8 September 2015
PDF: 10 pages
Proc. SPIE 9607, Earth Observing Systems XX, 96072E (8 September 2015); doi: 10.1117/12.2188978
Show Author Affiliations
Arata Okuyama, Japan Meteorological Agency (Japan)
Akiyoshi Andou, Japan Meteorological Agency (Japan)
Kenji Date, Japan Meteorological Agency (Japan)
Keita Hoasaka, Japan Meteorological Agency (Japan)
Nobutaka Mori, Japan Meteorological Agency (Japan)
Hidehiko Murata, Japan Meteorological Agency (Japan)
Tasuku Tabata, Japan Meteorological Agency (Japan)
Masaya Takahashi, Japan Meteorological Agency (Japan)
Ryoko Yoshino, Japan Aerospace Exploration Agency (Japan)
Kotaro Bessho, Japan Meteorological Agency (Japan)

Published in SPIE Proceedings Vol. 9607:
Earth Observing Systems XX
James J. Butler; Xiaoxiong (Jack) Xiong; Xingfa Gu, Editor(s)

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