{"id":{"repo_id":"unt","oai_identifier":"info:ark/67531/metadc2831"},"canonical_url":"https://search.dev.ndltd.org/etd/unt/info:ark/67531/metadc2831","repository":{"repo_id":"unt","name":"University of North Texas","base_url":"https://digital.library.unt.edu/oai/"},"display":{"title":"Comparison of GPS Point Selection Methods for GIS Area Measurement of Small Jurisdictional Wetlands","abstract":"U.S. Army Corps of Engineers (USACE) regulates fill of jurisdictional waters of the United States including wetlands. Recent USACE regulations set a threshold of impacts to wetlands at one-half acre. Impact area can be determined by Global Positioning System (GPS) measurement of wetland boundary and Geographic Information System (GIS) calculation of impact area. GPS point selection methods include (1) equal time interval, (2) transect and (3) intuition. Four two-acre shapes were measured with each GPS method and brought into GIS for area calculation. Analysis of variance and Root Mean Square Error analyses determine that the transect method is an inferior point selection method in terms of accuracy and efficiency.","abstract_html":"U.S. Army Corps of Engineers (USACE) regulates fill of jurisdictional waters of the United States including wetlands. Recent USACE regulations set a threshold of impacts to wetlands at one-half acre. Impact area can be determined by Global Positioning System (GPS) measurement of wetland boundary and Geographic Information System (GIS) calculation of impact area. GPS point selection methods include (1) equal time interval, (2) transect and (3) intuition. Four two-acre shapes were measured with each GPS method and brought into GIS for area calculation. Analysis of variance and Root Mean Square Error analyses determine that the transect method is an inferior point selection method in terms of accuracy and efficiency.","abstract_has_math":false,"creators":["Shelton, Michael"],"institution":"University of North Texas","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":["Atkinson, Samuel F.","Acevedo, Miguel F.","Ji, Minhe"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-08","date_published":"2001-08","updated_at":"2026-07-24T05:34:52Z","subjects":["Wetland ecology.","Wetlands -- Remote sensing.","Geographic information systems.","Global Positioning System.","GIS","wetlands","impact area","USACE"],"languages":["English"],"rights":["Use restricted to UNT Community","Copyright","Shelton, Michael","Copyright is held by the author, unless otherwise noted. All rights reserved."],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["oclc: 51259655","untcat: b2457256","https://digital.library.unt.edu/ark:/67531/metadc2831/","ark: ark:/67531/metadc2831"],"render_values":[{"text":"oclc: 51259655","href":null,"code":true},{"text":"untcat: b2457256","href":null,"code":true},{"text":"https://digital.library.unt.edu/ark:/67531/metadc2831/","href":"https://digital.library.unt.edu/ark:/67531/metadc2831/","code":true},{"text":"ark: ark:/67531/metadc2831","href":null,"code":true}]}]},"links":{"outbound_url":"https://doi.org/10.12794/metadc2831","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Atkinson, Samuel F.","Acevedo, Miguel F.","Ji, Minhe"]},{"key":"dc:creator","label":"Author","values":["Shelton, Michael"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2001-08"]},{"key":"dc:publisher","label":"Institution","values":["University of North Texas"]},{"key":"dc:type","label":"Dc Type","values":["Thesis or Dissertation"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Wetland ecology.","Wetlands -- Remote sensing.","Geographic information systems.","Global Positioning System.","GIS","wetlands","impact area","USACE"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["English"]},{"key":"dc:rights","label":"Dc Rights","values":["Use restricted to UNT Community","Copyright","Shelton, Michael","Copyright is held by the author, unless otherwise noted. 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Analysis of variance and Root Mean Square Error analyses determine that the transect method is an inferior point selection method in terms of accuracy and efficiency."]},{"key":"dc:format","label":"Dc Format","values":["Text"]},{"key":"dc:title","label":"Title","values":["Comparison of GPS Point Selection Methods for GIS Area Measurement of Small Jurisdictional Wetlands"]}]}],"canonical_facts":{"dc:contributor":["Atkinson, Samuel F.","Acevedo, Miguel F.","Ji, Minhe"],"dc:creator":["Shelton, Michael"],"dc:date":["2001-08"],"dc:description":["U.S. Army Corps of Engineers (USACE) regulates fill of jurisdictional waters of the United States including wetlands. Recent USACE regulations set a threshold of impacts to wetlands at one-half acre. Impact area can be determined by Global Positioning System (GPS) measurement of wetland boundary and Geographic Information System (GIS) calculation of impact area. GPS point selection methods include (1) equal time interval, (2) transect and (3) intuition. Four two-acre shapes were measured with each GPS method and brought into GIS for area calculation. Analysis of variance and Root Mean Square Error analyses determine that the transect method is an inferior point selection method in terms of accuracy and efficiency."],"dc:format":["Text"],"dc:identifier":["oclc: 51259655","untcat: b2457256","doi: 10.12794/metadc2831","https://digital.library.unt.edu/ark:/67531/metadc2831/","ark: ark:/67531/metadc2831"],"dc:language":["English"],"dc:publisher":["University of North Texas"],"dc:rights":["Use restricted to UNT Community","Copyright","Shelton, Michael","Copyright is held by the author, unless otherwise noted. All rights reserved."],"dc:subject":["Wetland ecology.","Wetlands -- Remote sensing.","Geographic information systems.","Global Positioning System.","GIS","wetlands","impact area","USACE"],"dc:title":["Comparison of GPS Point Selection Methods for GIS Area Measurement of Small Jurisdictional Wetlands"],"dc:type":["Thesis or Dissertation"]},"updated_at":"2026-07-24T05:34:52Z"}