Ground control points collected during unmanned aerial systems (UAS) flights: Potomac River in Brunswick Maryland on October 22, 2019

Low-altitude aerial images were taken over an area of the Potomac River in Brunswick, Maryland using 3DR Solo unmanned aircraft systems (UAS) on October 22, 2019. The imagery was collected for the purpose of evaluating UAS assessment of river habitat data such as water depth, substrate type, and water clarity. Some photographs contain black and white targets used as ground control points (GCPs), which were surveyed by a field crew with a high-precision (GNSS) Global Navigation Satellite System and/or containing internal post processing kinematic (PPK) GPS system. This data release contains the csv files containing the latitude and longitude coordinates, in Universal Transverse Mercator Zone 18N referenced to the North American Datum of 1983 (2011), of the ground control points.

Data e Risorse

Campo Valore
accessLevel public
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identifier USGS:5e2b4eb0e4b0a79317d05ac7
metadata_type geospatial
modified 20200821
old-spatial -77.63400, 39.30000, -77.61000, 39.31300
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
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source_hash 414d3e32fd4b3f21d11c1b543a6f4e2d6c8bb4a6
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spatial {"type": "Polygon", "coordinates": [[[-77.63400, 39.30000], [-77.63400, 39.31300], [ -77.61000, 39.31300], [ -77.61000, 39.30000], [-77.63400, 39.30000]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • aeropoints
  • amerigeo
  • amerigeoss
  • brunswick
  • ceramic-tile
  • ckan
  • elevation
  • gcp
  • geo
  • geoscientificinformation
  • geoss
  • global-positioning-system
  • gps
  • ground-control-points
  • location
  • maryland
  • national
  • navigation
  • navigational-data
  • north-america
  • potomac-river
  • u-s-geological-survey
  • united-states
  • usa
  • usgs
  • usgs-5e2b4eb0e4b0a79317d05ac7
isopen False
license_id notspecified
license_title License not specified
maintainer Matthew J Cashman
maintainer_email mcashman@usgs.gov
metadata_created 2025-11-20T13:57:58.729896
metadata_modified 2025-11-20T13:57:58.729900
notes Low-altitude aerial images were taken over an area of the Potomac River in Brunswick, Maryland using 3DR Solo unmanned aircraft systems (UAS) on October 22, 2019. The imagery was collected for the purpose of evaluating UAS assessment of river habitat data such as water depth, substrate type, and water clarity. Some photographs contain black and white targets used as ground control points (GCPs), which were surveyed by a field crew with a high-precision (GNSS) Global Navigation Satellite System and/or containing internal post processing kinematic (PPK) GPS system. This data release contains the csv files containing the latitude and longitude coordinates, in Universal Transverse Mercator Zone 18N referenced to the North American Datum of 1983 (2011), of the ground control points.
num_resources 2
num_tags 26
title Ground control points collected during unmanned aerial systems (UAS) flights: Potomac River in Brunswick Maryland on October 22, 2019