你的位置:首页 > 信息动态 > 新闻中心
信息动态
联系我们

Google Earth Engine(GEE)——GEE版本的全球森林火灾信息获取并呈现2001-2020年四川省火灾亮度时间序列分析

2021-12-2 5:58:05

火灾最近频发,我们如何通过现有的数据如何做?

步骤:

1.找到火灾数据

2.波段选择

3.时间选择

4.map()遍历函数

5.

全球火灾信息影像:

此次用到的数据集:FIRMS: Fire Information for Resource Management System

The Earth Engine version of the Fire Information for Resource Management System (FIRMS) dataset contains the LANCE fire detection product in rasterized form. The near real-time (NRT) active fire locations are processed by LANCE using the standard MODIS MOD14/MYD14 Fire and Thermal Anomalies product. Each active fire location represents the centroid of a 1km pixel that is flagged by the algorithm as containing one or more fires within the pixel. The data are rasterized as follows: for each FIRMS active fire point, a 1km bounding box (BB) is defined; pixels in the MODIS sinusoidal projection that intersect the FIRMS BB are identified; if multiple FIRMS BBs intersect the same pixel, the one with higher confidence is retained; in case of a tie