Discussion on Near Real-time Tracking of Forest Fire Spread Based on Himawari and FY4 Geostationary Satellite Observation
The application potential ability of the new generation geostationary meteorological satellites in forest fire spread velocity measurement is discussed.The Himawari-AHI and FY4-AGRI sensors provide 10 minutes and 5 minutes period's observation data,which provides excellent technical conditions for forest fire real-time tracking and FSR(Fire Spread Rate)measurement.Under the observation of satellite remote sensing 2 km spatial resolution,most forest fire field spread change period exceed 12 minutes,this indicating that the observation data of the new generation of geostationary meteorological satellites are capable of tracking and measuring the spread behavior of most forest fires.Based on the observation data of the new generation of geostationary meteorological satellite,a FSR measurement algorithm for forest fire spread velocity is proposed in this paper.A case study using Himawari-AHI and FY4-AGRI observation data show that the algorithm can give fire spread range velocity and area velocity in near-real-time with high accuracy.Therefore,this algorithm can realize the fire spread measuring and monitoring,and also provide a measurement data source for forest fire spread prediction and study.
万方数据
维普
