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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.
Complete Metadata
| @id | http://datainventory.doi.gov/id/dataset/88cd179bfb3204db1f8a57ee8fe91f60 |
|---|---|
| bureauCode |
[ "010:12" ] |
| identifier | USGS:4532a142-b79d-4362-a953-76b039c3fa9f |
| spatial | -43.277206,-11.514883,-43.221876,-11.374888 |
| theme |
[ "geospatial" ] |
