동아시아 정지궤도 기상위성의 산불탐지 비교실험
A Comparative Study on the Wildfire Detection Capabilities of East Asian Geostationary Meteorological Satellites
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초록
Wildfires are recently increasing in frequencies and intensities worldwide. Hence, reliable andcontinuous monitoring of sudden occurrences of wildfire is demanded, and geostationary meteorologicalsatellites are an alternative to detection of wildfire in large areas. We currently have two geostationary meteorological satellites for the Korean Peninsula: the Korean COMS(Communication, Ocean andMeteorological Satellite) and the Japanese MTSAT(Multifunctional Transport Satellite). However, neither of them provides satellite products for wildfire detection although the MODIS(Moderate Resolution Imaging Spectroradiometer) on polar-orbiting satellites has been operated for wildfire detection for adecade. In this study, we applied the MODIS algorithm for wildfire detection to the COMS and the MTSAT in order to evaluate the detection performances for South Korea. Both satellites were successful in detection of big fires, but the COMS was better in detecting small fires because of its higher saturation temperature of 350 K approx. at 4-μm band. The comparison results will be informative for an emergency plan of COMS and for the preparation of next-generation geostationary meteorological satellite.
Abstract
Wildfires are recently increasing in frequencies and intensities worldwide. Hence, reliable andcontinuous monitoring of sudden occurrences of wildfire is demanded, and geostationary meteorologicalsatellites are an alternative to detection of wildfire in large areas. We currently have two geostationary meteorological satellites for the Korean Peninsula: the Korean COMS(Communication, Ocean andMeteorological Satellite) and the Japanese MTSAT(Multifunctional Transport Satellite). However, neither of them provides satellite products for wildfire detection although the MODIS(Moderate Resolution Imaging Spectroradiometer) on polar-orbiting satellites has been operated for wildfire detection for adecade. In this study, we applied the MODIS algorithm for wildfire detection to the COMS and the MTSAT in order to evaluate the detection performances for South Korea. Both satellites were successful in detection of big fires, but the COMS was better in detecting small fires because of its higher saturation temperature of 350 K approx. at 4-μm band. The comparison results will be informative for an emergency plan of COMS and for the preparation of next-generation geostationary meteorological satellite.
참고문헌 (8)
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- Giglio, L., "An enhanced contextual fire detection algorithm for MODIS, Remote Sensing of Environment", Remote Sensing of Environment, 87, pp.273~282 (2003)
- Kim, G., "Detecting wildfires with the Korean geostationary meteorological satellite, Remote Sensing Letters" (2014)
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- Takeuchi, W., "Evaluation of wildfire duration time over Asia using MTSAT and MODIS", Asian Journal of Geoinformatics, 9(1), pp.13~17 (2008)
- HRIT Global Specification, Coordination Group for Meteorological Satellites, "LRIT", pp.1999, Wolf, R.