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

This Hardwoods type dataset portrays 12 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.硬木类数据集（Hardwoods type dataset）涵盖了美国本土48州的12个森林类型组。该数据集基于2002年与2003年生长季的中分辨率成像光谱仪（MODIS）合成影像，并结合了近百个其他地理空间数据图层，包括高程、坡度、坡向、生态区域以及PRISM气候数据。本数据集由美国林务局（USFS，United States Forest Service）下属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合作开发完成。