Fire Extent and Severity Mapping (FESM) 2020/21

Fire severity is a metric of the loss of biomass caused by fire. In collaboration with the NSW Rural Fire Service, DPE Remote Sensing & Regulatory Mapping team has developed a semi-automated approach to mapping fire extent and severity through a machine learning framework based on sentinel 2 satellite imagery. The statewide severity map has standardised classes to allow comparison of different fires across the landscape. The FESM severity classes include: unburnt, low severity (burnt understory, unburnt canopy), moderate severity (partial canopy scorch), high severity (complete canopy scorch, partial canopy consumption), extreme (full canopy consumption).\r\n\r\nThis dataset represents the 2020/21 fire year including all wildfires >10ha with a fire start date between July 2020 and June 2021.\r\n火灾烈度是衡量火灾造成生物量损失的量化指标。新南威尔士州农村消防局（NSW Rural Fire Service）与DPE遥感与监管制图团队合作，基于哨兵2号卫星影像（Sentinel-2）搭建机器学习框架，开发了一套用于绘制火灾范围与烈度的半自动化制图方案。该全州范围的火灾烈度地图采用标准化分级体系，可支持不同区域火灾情况的横向对比。火灾范围与烈度制图（Fire Extent and Severity Mapping，FESM）的烈度分级包括：未燃烧、低烈度（林下植被受燃，冠层未燃）、中烈度（冠层部分灼伤）、高烈度（冠层完全灼伤，冠层部分焚毁）、极高烈度（冠层完全焚毁）。 本数据集对应2020/2021火灾季，涵盖所有过火面积大于10公顷、起火时间介于2020年7月至2021年6月之间的野外火灾。