Dune migration measurements on the South Saskatchewan River, Canada, 2017

Data were collected in 2017, to provide information on spatial patterns of dune migration rates and associated water flow characteristics, at locations on the South Saskatchewan River, Canada. Dune migration rates were measured using repeat aerial imagery. Bedform crests were digitised in individual images, and average dune migration rates were calculated from the mean migration distance between image pairs, divided by the time between image collection. Water depth and velocity data were collected using a Sontek M9 acoustic Doppler current profiler (aDcp) mounted on a small zodiac boat. The position of the aDcp was recorded using a RTK dGPS system. Data were collected on 12th June 2017 as part of NERC project NE/L00738X/1 Full details about this dataset can be found at https://doi.org/10.5285/864434b7-2102-4edc-802d-ebdbfe9ff766

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Date (Publication)
2020-02-03
Identifier
https://catalogue.ceh.ac.uk/id/864434b7-2102-4edc-802d-ebdbfe9ff766
Identifier
doi: / 10.5285/864434b7-2102-4edc-802d-ebdbfe9ff766
Other citation details
Ashworth, P., Nicholas, A., Parsons, D., Sambrook Smith, G., Unsworth, C. (2020). Dune migration measurements on the South Saskatchewan River, Canada, 2017. NERC Environmental Information Data Centre 10.5285/864434b7-2102-4edc-802d-ebdbfe9ff766
Author
  University of Brighton - Ashworth, P.
Author
  Exeter University - Nicholas, A.
Author
  University of Hull - Parsons, D.
Author
  University of Birmingham - Sambrook Smith, G.
https://orcid.org/0000-0002-3707-1182
Author
  National Oceanography Centre, Liverpool - Unsworth, C.
Point of contact
  Exeter University - Nicholas, A.
Custodian
  NERC EDS Environmental Information Data Centre
Publisher
  NERC Environmental Information Data Centre
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This resource is available under the terms of the Open Government Licence
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© Natural Environment Research Council
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If you reuse this data, you should cite: Ashworth, P., Nicholas, A., Parsons, D., Sambrook Smith, G., Unsworth, C. (2020). Dune migration measurements on the South Saskatchewan River, Canada, 2017. NERC Environmental Information Data Centre https://doi.org/10.5285/864434b7-2102-4edc-802d-ebdbfe9ff766
Spatial representation type
textTable Text, table
Distance
10000  urn:ogc:def:uom:EPSG::9001
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Inland waters
Begin date
2017-06-12
End date
2017-06-12
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WGS 84
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  • Comma-separated values (CSV) ()

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  NERC EDS Environmental Information Data Centre
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Date (Publication)
2010-12-08
Statement
Data were collected to provide information on spatial patterns of dune migration rates and associated flow characteristics, at locations on the South Saskatchewan River, Canada. Dune migration rates were measured using repeat aerial imagery with flight lines completed on a grid pattern with 80% lateral and longitudinal overlap between images. Orthomosaics were constructed from these images using the SfM program Pix4D (https://pix4d.com/). Multiple flights were flown at 1 hour intervals (maximum of five epochs in a day) to allow tracking of bedforms. Image Ground Sampling Distance (GSD) was typically 0.025–0.03 m. Bedform crests were digitised in individual images, and average dune migration rates were calculated from the mean migration distance between image pairs, divided by the time between image collection. Data were collected on 12th June 2017. Water depth and velocity data were collected using a Sontek M9 acoustic Doppler current profiler (aDcp) mounted on a small zodiac boat. The position of the aDcp was recorded using a RTK dGPS system. Velocities are calculated relative to the instrument head and are corrected using the dGPS calculated boat speed and heading. The aDcp data were collected in pulse coherent mode, averaging 7 pings per second, and were averaged to 1 Hz to improve the signal-to-noise ratio. The M9 uses 9 transducers at frequencies between 0.5 and 3.0 MHz. Data were collected along cross-sections of the river that extended between both banks and were aligned approximately perpendicular to the downstream flow direction.
File identifier
864434b7-2102-4edc-802d-ebdbfe9ff766 XML
Metadata language
EnglishEnglish
Character set
ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1
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dataset Dataset
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dataset
Date stamp
2025-11-13T16:24:30
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg , Lancaster , LA1 4AP , UK
https://eidc.ac.uk/
 
 

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