Wildfire Suppression Difficulty Index 80th Percentile 2024 (Image Service)

Wildfire Suppression Difficulty Index (SDI) 80th Percentile is a rating of relative difficulty in performing fire control work under regionally appropriate fuel moisture and 15 mph uphill winds (@ 20 ft). SDI factors in topography, fuels, expected fire behavior under prevailing conditions, fireline production rates in various fuel types with and without heavy equipment, and access via roads, trails, or cross-country travel. SDI does not account for standing snags or other overhead hazards to firefighters, so it is not a firefighter hazard map. It is only showing in relative terms where it is harder or easier to perform suppression work.This record was taken from the USDA Enterprise Data Inventory that feeds into the https://data.gov catalog. Data for this record includes the following resources: ISO-19139 metadata ArcGIS Hub Dataset ArcGIS GeoService For complete information, please visit https://data.gov.

野火抑制难度指数（SDI）80分位数是对在特定区域适宜的燃料湿度及每小时15英里上山风速（海拔20英尺）条件下执行火控作业相对难度的评估。SDI考量了地形、燃料、在当前条件下的预期火行为，以及有无重型设备支持下的不同燃料类型火线生产率，以及通过道路、小径或越野旅行的方式可达性。SDI未将站立枯树或其他对消防员构成威胁的空中障碍纳入考量，因此它并非消防员危险地图。该指数仅以相对术语展示执行抑制作业的难易程度。本记录源自美国农业部企业数据清单，并输入至https://data.gov目录。本记录的数据包括以下资源：ISO-19139元数据、ArcGIS Hub数据集、ArcGIS地理服务。欲获取完整信息，请访问https://data.gov。