Global Space-based Inter-calibration System (GSICS)
GSICS is one of the space components of the World Meteorological Organization (WMO). Its mission is to provide users with high-quality and inter-calibrated measurements from operational satellites. Please see the GSICS portal operated by WMO for more details. The MSC contributes to GSICS in its role as a GSICS Processing and Research Center (GPRC) for optical imagers on the Himawari/MTSAT/GMS series.
Himawari-8/-9 and MTSAT-1R/-2
Calibration Event Logging
Himawari Calibration Portal provides information on instrument specification, calibration events and data outages of the JMA's geostationary satellites.
Infrared Inter-calibration with High-spectral-resolution Sounders
Within the GSICS framework, Himawari-8/-9 AHI infrared data are routinely compared with those from high-spectral-resolution sounders, such as the AIRS equipment on the Aqua satellite and the IASI instrument on the Metop satellite. For details of inter-calibration methods and results, please refer to the inter-calibration guide link below. Regarding the maturity level of GSICS Products, please refer to GSICS Product Catalog.
Inter-calibration Guide
Statistics for GSICS Correction
- Himawari-9/AHI (from 2022-12-13 onward)
- Himawari-8/AHI (from 2015-03-06 to 2022-12-13)
- MTSAT-2/Imager (from 2010-05-26 to 2016-03-09)
- MTSAT-1R/JAMI (from 2008-05-15 to 2014-11-15)
Visible and Near Infrared Vicarious Calibration and Inter-calibration
Himawari-8/-9 AHI visible and near-infrared data are routinely monitored based on comparison of observations with radiative transfer calculation and ray-matching approach. For details of these methods, please see the following guide webpages.
Himawari-8/-9 AHI
- Monthly statistics (based on: RTM, Ray-matching)
- Guide (based on: RTM, Ray-matching)