Cross-Calibration of the Himawari-9 Thermal Infrared Data by Applying a Physical Sea Surface Temperature Method
| Autor: | Yukio Kurihara, Misako Kachi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 19730-19742 (2024) |
| Druh dokumentu: | article |
| ISSN: | 1939-1404 2151-1535 |
| DOI: | 10.1109/JSTARS.2024.3483279 |
| Popis: | We developed a cross-calibration method to improve sea surface temperature (SST) retrieval from remotely sensed thermal infrared data from space. The cross-calibration method is based on a physical SST method that determines SST by solving the infrared radiative transfer equation. We calibrated the thermal infrared data from Himawari-9, a Japanese geostationary meteorological satellite, using the developed method and the reference observation obtained with the Second-generation Global Imager (SGLI) onboard the Global Change Observation Mission-Climate (GCOM-C) satellite. As a result, the bias and the standard deviation of Himawari-9 SST were improved from $-$0.63 to $-$0.028 K and from 1.2 to 0.73 K, respectively, compared to the buoy data. Consistency between the Himawari-9 SST and SGLI SST was also improved after this calibration. Meanwhile, negative bias remained in the Himawari-9 SST, which was determined using 3.9 $\mu$m data if the observation zenith angle was larger than 50°. This article discusses the cross-calibration method and the validation results of SST retrieved from the calibrated Himawari-9 data. |
| Databáze: | Directory of Open Access Journals |
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