USNG_10K

This layer represents a 10,000 by 10,000 meter United States National Grid (USNG) for Florida. The USNG is an alpha-numeric reference system based on the UTM coordinate system and is similar to the Military Grid Reference System. Use of the USNG ensures a uniform grid mapping and positional reporting system for search and rescue, emergency planning, response, and recovery.本图层为针对佛罗里达州的10000米×10000米美国国家网格（United States National Grid, USNG）。USNG是一套基于通用横轴墨卡托（Universal Transverse Mercator, UTM）坐标系的字母数字混合参考系统，其与军用网格参考系统类似。采用USNG可构建统一的网格制图与位置报告体系，适用于搜救、应急规划、应急响应及灾后恢复等场景。