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摘要

引用本文:

DOI:

10.11834/jrs.20209137

收稿日期:

2019-05-07

修改日期:

2019-10-12

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近实时中高空间分辨率活动森林火灾监测系统展望
李晓松1, 李增元2
1.中国科学院遥感与数字地球研究所 数字地球重点实验室;2.中国林业科学研究院 资源信息研究所
摘要:

森林火灾是最为常见的灾害之一,严重危及人类生命安全。及时准确监测森林火灾的发生及火场状况,对应对火灾及减少损失至关重要。当前,森林火灾卫星遥感监测主要以低空间分辨率的卫星遥感为主,空间分辨率过低导致无法探测规模较小火灾及掌握详细火场态势。针对这一问题,结合近些年中高分辨率卫星观测、共享及处理能力的发展,本文从森林火灾卫星遥感监测的基本原理、当前可用中高空间分辨率卫星数据及其特点、中高分辨率森林着火区监测算法、以及数据共享与云端存储与计算等4个技术环节,对森林火灾中高分辨率卫星遥感监测当前研究现状与存在问题进行了总结,并提出了近实时全球中高空间分辨率森林火灾监测框架体系。未来,这一体系的构建将可对已有低空间分辨率森林火灾监测体系形成重要补充,其与无人机及地面监测体系的有机结合,将会显著提升大尺度森林火灾监测能力。

Toward a near real-time active forest fire monitoring system with medium and high spatial resolution
Abstract:

Forest fires are one of the most common disasters and seriously endanger human life. Timely and accurate monitoring of forest fires is essential for fighting fires and reducing losses. At present, active forest fires monitoring with satellite is mainly based on low spatial resolution polar or geostationary orbit satellites. The spatial resolution is too low, which makes it impossible to detect small-scale fires and master detailed fire situation. In response to this problem, we prospect a near-real-time medium and high spatial resolution forest fire monitoring system, based on the rapid development of medium and high spatial resolution satellite sensors, data sharing policy and data processing capabilities in recent years. This paper summarizes the research status and related shortages in 4 aspects, including basic principles of forest fire monitoring, currently available medium and high spatial resolution satellite data and its characteristics, active forest fire monitoring algorithms and data sharing and cloud storage and computation, and propose a framework of a near-real-time global medium and high spatial resolution forest fire monitoring system. The construction of this system can form an important supplement to the existing coarse resolution forest fire monitoring system, and its combination with the drone and ground monitoring system will also significantly improve the large-scale forest fire monitoring capability.

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