US Forest Atlas FIA Forest Type Groups Softwoods (Image Service)

This Softwood type dataset portrays 16 forest type groups across the contiguous United States. These data were derived from MODIS composite images from the 2002 and 2003 growing seasons in combination with nearly 100 other geospatial data layers, including elevation, slope, aspect, ecoregions, and PRISM climate data. The dataset was developed as a collaborative effort between the USFS Forest Inventory and Analysis and Forest Health Monitoring programs and the USFS Remote Sensing.本软木类型数据集（Softwood type dataset）呈现了美国本土范围内的16个森林类型群。该数据集的数据来源于2002年与2003年生长季的MODIS合成影像，并结合了近百个其他地理空间数据图层，包括海拔、坡度、坡向、生态区以及PRISM气候数据。本数据集由美国林务局（United States Forest Service，USFS）的森林资源清查与分析项目、森林健康监测项目，以及美国林务局遥感部门联合开发完成。