Bathymetric Survey Data for the São Francisco River near Torrinha, Bahia, Brazil, 2014

Hydrographic survey data were collected from May 22 through June 10, 2015, using an acoustic Doppler current profiler (ADCP) coupled with an RTK-GNSS rover. The collected hydrographic data consisted of three elements—riverbed elevations derived from bathymetry, depth-averaged streamflow velocity, and instantaneous discharge measurements. Hydrographic data were collected as the boat moved across the river at planned cross sections distributed throughout the reach. Data collection software integrated and stored the depth and velocity data from the ADCP and the horizontal and vertical positioning data from the GNSS data in real time. Data processing required computer software to extract bathymetry and velocity data from the raw ADCP and GNSS files and to summarize and map the information. Streamflow was measured to document the streamflow of the river at the time of the survey, and the variation of streamflow around Grande do Pecado Island.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {010:12}
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identifier USGS:4532a142-b79d-4362-a953-76b039c3fa9f
metadata_type geospatial
modified 20201117
old-spatial -43.277206, -11.514883, -43.221876, -11.374888
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
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source_hash 6064dbdf54784637a79df79038cbc1b6ce63e5a1
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spatial {"type": "Polygon", "coordinates": [[[-43.277206, -11.514883], [-43.277206, -11.374888], [ -43.221876, -11.374888], [ -43.221876, -11.514883], [-43.277206, -11.514883]]]}
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • acoustic
  • adcp
  • amerigeo
  • amerigeoss
  • ascii
  • ba
  • bahia
  • bathymetry
  • brazil
  • ckan
  • doppler
  • elevation
  • geo
  • geology
  • geoscientificinformation
  • geoss
  • imagerybasemapsearthcover
  • inland-waters
  • inlandwaters
  • lidar
  • location
  • multibeam
  • national
  • north-america
  • oceans
  • sao-francisco-river
  • structure
  • torrinha
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-4532a142-b79d-4362-a953-76b039c3fa9f
  • water-depth
  • xyz
isopen False
license_id notspecified
license_title License not specified
maintainer Ryan L. Fosness
maintainer_email rfosness@usgs.gov
metadata_created 2025-11-22T20:43:05.186033
metadata_modified 2025-11-22T20:43:05.186037
notes Hydrographic survey data were collected from May 22 through June 10, 2015, using an acoustic Doppler current profiler (ADCP) coupled with an RTK-GNSS rover. The collected hydrographic data consisted of three elements—riverbed elevations derived from bathymetry, depth-averaged streamflow velocity, and instantaneous discharge measurements. Hydrographic data were collected as the boat moved across the river at planned cross sections distributed throughout the reach. Data collection software integrated and stored the depth and velocity data from the ADCP and the horizontal and vertical positioning data from the GNSS data in real time. Data processing required computer software to extract bathymetry and velocity data from the raw ADCP and GNSS files and to summarize and map the information. Streamflow was measured to document the streamflow of the river at the time of the survey, and the variation of streamflow around Grande do Pecado Island.
num_resources 2
num_tags 34
title Bathymetric Survey Data for the São Francisco River near Torrinha, Bahia, Brazil, 2014