Open AccessSpatial Measurements on USGS Topo Maps
Author(s) -
Hartwig H. Hochmair,
Adam R. Benjamin
Publication year - 2021
Publication title -
edis
Language(s) - English
Resource type - Journals
ISSN - 2576-0009
DOI - 10.32473/edis-fr433-2021
Subject(s) - geospatial analysis , georeference , geography , geographic coordinate system , adobe , remote sensing , grid , cartography , point (geometry) , geomatics , spatial analysis , computer science , computer graphics (images) , geology , archaeology , physical geography , geodesy , mathematics , geometry
United States Geological Survey topographic maps provide a variety of geospatial measurement tools thanks to their built-in georeferencing capabilities. Georeferencing facilitates display of geographic coordinates and measurement of distances, perimeters, and areas on PDFs using the measure tools built into Adobe Reader and Adobe Acrobat. This 7-page fact sheet written by Hartwig H. Hochmair and published by the UF/IFAS School of Forest Resources and Conservation explains and showcases the use of these geospatial readout functions. It also provides background information about and assistance with estimating point coordinates on the Universal Transverse Mercator grid cast on USGS topographic maps as an optional layer.