NERC Data Catalogue Service
Dune migration measurements on the South Saskatchewan River, Canada, 2017
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Identification info
- Metadata Language
- English (en)
- Character set
- utf8
- Dataset Reference Date ()
- 2020-02-03
- 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
- GEMET - INSPIRE themes, version 1.0 ()
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- Environmental Monitoring Facilities
- Keywords
- Limitations on Public Access
- otherRestrictions
- Other constraints
- no limitations
- Use constraints
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- Use constraints
- otherRestrictions
- Other constraints
- © Natural Environment Research Council
- Use constraints
- otherRestrictions
- Other constraints
- 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
- Distance
- 10000 urn:ogc:def:uom:EPSG::9001
- Topic category
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- Inland waters
))
- Begin date
- 2017-06-12
- End date
- 2017-06-12
- Code
- WGS 84
Distribution Information
- Data format
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Comma-separated values (CSV)
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Comma-separated values (CSV)
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Supporting information
Supporting information available to assist in re-use of this dataset
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Supporting information
Supporting information available to assist in re-use of this dataset
- Quality Scope
- dataset
- Other
- dataset
Report
- Dataset Reference Date ()
- 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.
Metadata
- File identifier
- 864434b7-2102-4edc-802d-ebdbfe9ff766 XML
- Metadata Language
- English (en)
- Character set
- ISO/IEC 8859-1 (also known as Latin 1)
- Resource type
- dataset
- Hierarchy level name
- dataset
- Metadata Date
- 2021-10-06T14:49:54
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
