First adopted by several states, USNG was later adopted by FEMA in 2009 due to the Hurricane Katrina confusion among first responders. By 2001, FGDC released USNG as a standard. The USNG is an initiative of the Public XY Mapping Project, a not-for-profit organization that brought its findings to Federal Geographic Data Committee (FGDC) in 1998. Having a standard geo-referencing system is vital, particularly during large-scale natural disasters that involve multiple agencies. The degree of precision is determined by the number of digits in the coordinates (i.e., 23 67 = 1000 meters, 23451 67345 = 1 meter). The Grid can be accessed via GPS receivers, smart phones apps and web-based map portals, such as the mapping layers within Mission Manager.Īs a universal map index, USNG improves interoperability among first responders at all levels – from federal, state and local government. It is used for both wide area searches as well as small areas with a pinpoint accuracy. Viewers will also learn the importance of using a standard geo-referencing system, and discover why USNG has been adopted by the federal and state SAR units across the country.Īs noted in the video, USNG ensures that first responders are using the same system of coordinates so they avoid multiple searches of the same area, resulting in more efficiency and successful operations.ĭerived from the Military Grid Referencing System, USNG provides user-friendly position referencing on gridded paper and digital maps. In the 8-minute module, viewers can learn how to access USNG, read coordinates and find locations on a topographical map.
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