Washington Large Fires 1973-2025

Washington Large Fire dataset represents large fires in Washington State typically over 100 acres, but smaller perimeters have been included when data is available. Collecting accurate large fire perimeters is a coordinated effort between federal, state and local agencies. The Northwest Coordination Center in Portland, Oregon heads this effort by compiling daily fire perimeters from the National Interagency Fire Center (NIFC) ftp site during fire season and at the end of each calendar year. The purpose of this data is to provide consistent spatial data throughout Washington for management, planning or analysis involving fire history. Fire perimeter polygons represent final fire perimeters provided by jurisdictional agency, local agencies or Incident Management Teams assigned to the fire. Final products for each polygon are maintained at the local level to track the area affected by fire. This dataset dates back to 1973, some data may be missing or inaccurate. DNR works in coordination with other agencies to make every attempt to get complete and correct data at the end of each fire season.

华盛顿州大型火灾数据集（Washington Large Fire Dataset）收录华盛顿州内通常过火面积超过100英亩的大型火灾，在数据可用的情况下也会纳入过火边界较小的火灾案例。精准的大型火灾过火边界采集工作由联邦、州级及地方多级机构协同完成。坐落于俄勒冈州波特兰的西北协调中心（Northwest Coordination Center）负责统筹此项工作：在火灾季及每个历年年末，从美国国家跨部门消防中心（National Interagency Fire Center, NIFC）的FTP站点每日汇编火灾过火边界数据。本数据集的构建目的是为华盛顿州全域提供统一的空间数据，以支撑涉及火灾历史的管理、规划与分析工作。火灾过火边界多边形（Fire Perimeter Polygons）所呈现的，均为对应火灾的管辖机构、地方机构或负责该火灾的事故管理团队（Incident Management Team, IMT）所提供的最终过火边界数据。每个多边形的最终成果均由地方层级进行维护，以追踪火灾影响的过火范围。本数据集的历史可追溯至1973年，部分数据可能存在缺失或不准确的情况。华盛顿州自然资源部（Department of Natural Resources, DNR）会与其他机构协同合作，在每个火灾季结束时尽全力获取完整且准确的火灾数据。