Europe's free satellite service just made it easier to track wildfires
摘要
欧洲哥白尼浏览器新增“野火”可视化图层，于8月4日上线，用户可免费查看哨兵卫星影像，更直观追踪全球野火。该图层基于近十年前开发的脚本，利用哨兵-2任务多光谱成像（可见光与近红外波段分辨率达10米），以白色或黄色显示活跃火点，红色显示燃烧植被，深棕或黑色显示过火区域。此前浏览器已有10种默认光谱组合图层，此次更新进一步简化了野火监测流程，面向公众开放使用。
The wildfires afflicting communities across the world can now be tracked more easily by anyone using Europe’s free and open satellite imagery service—all thanks to a wildfire visualization script originating from nearly a decade ago.
The Copernicus Browser provides free access to the latest satellite imagery taken by the European Space Agency’s Sentinel satellites for the European Union’s Earth observation program. The three satellites of the Sentinel-2 mission have proven especially useful for wildfire monitoring by providing multi-spectral imaging at resolutions as granular as 10 meters in visible light and near-infrared bands—and the Copernicus Browser previously offered 10 default visualization layers using different combinations of spectral bands.
Now Copernicus Browser has also added a straightforward “wildfires” visualization layer for Sentinel-2 imagery that went live on August 4. Anyone clicking on this layer while looking at a wildfire location can see active fires in white or yellow, burning vegetation in red, and burned landscapes in dark brown or black.
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