Himawari-8 Satellite Based Dynamic Monitoring of Grassland Fire in China-Mongolia Border Regions.

Himawari-8 Satellite Based Dynamic Monitoring of Grassland Fire in China-Mongolia Border Regions.
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向日八号卫星中蒙边境草原火灾动态监测

DOI:
10.3390/s18010276
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发表时间:
2018-01-18
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Si A
Si A
中科院分区:
其他
文献类型:
--
作者:
Na L;Zhang J;Bao Y;Bao Y;Na R;Tong S;Si A

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利用先进的Himawari成像仪(AHI)的7、4、3波段数据,结合阈值算法和目视解译方法,对2016年4月19日05:40(UTC)至4月21日13:50(UTC)发生在中蒙边境地区的草原火灾进行了全过程监测。利用火点积数据、风场数据和火灾发生地的环境信息数据对AHI数据监测结果进行了评价。监测结果显示,此次草原火灾持续燃烧2天8小时,总过火面积约2708.29平方公里。它主要由西北向东南方向蔓延,最大燃烧速度为20.9米/秒,最小速度为2.52米/秒,平均速度约为12.07米/秒。因此,利用AHI数据不仅可以快速准确地跟踪草原火灾的动态发展,而且可以估计草原火灾的蔓延速度和方向。对火灾监测结果的评价表明,AHI数据具有较高的精度和时效性,能够与实际情况高度吻合。
In this study, we used bands 7, 4, and 3 of the Advance Himawari Imager (AHI) data, combined with a Threshold Algorithm and a visual interpretation method to monitor the entire process of grassland fires that occurred on the China-Mongolia border regions, between 05:40 (UTC) on April 19th to 13:50 (UTC) on April 21st 2016. The results of the AHI data monitoring are evaluated by the fire point product data, the wind field data, and the environmental information data of the area in which the fire took place. The monitoring result shows that, the grassland fire burned for two days and eight hours with a total burned area of about 2708.29 km2. It mainly spread from the northwest to the southeast, with a maximum burning speed of 20.9 m/s, a minimum speed of 2.52 m/s, and an average speed of about 12.07 m/s. Thus, using AHI data can not only quickly and accurately track the dynamic development of a grassland fire, but also estimate the spread speed and direction. The evaluation of fire monitoring results reveals that AHI data with high precision and timeliness can be highly consistent with the actual situation.
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