Date (Publication)

2019-10-29

Identifier

https://catalogue.ceh.ac.uk/id/7473d4f9-c9a7-40ad-9f58-e58e25997fc5

Identifier

doi: / 10.5285/7473d4f9-c9a7-40ad-9f58-e58e25997fc5

Other citation details

Ashworth, P., Nicholas, A., Parsons, D., Sambrook Smith, G. (2019). Orthomosaic imagery for the South Saskatchewan River, Canada. NERC Environmental Information Data Centre 10.5285/7473d4f9-c9a7-40ad-9f58-e58e25997fc5

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no limitations

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© Natural Environment Research Council

Use constraints

otherRestrictions Other restrictions

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This resource is available under the terms of the Open Government Licence

Use constraints

otherRestrictions Other restrictions

Other constraints

If you reuse this data, you should cite: Ashworth, P., Nicholas, A., Parsons, D., Sambrook Smith, G. (2019). Orthomosaic imagery for the South Saskatchewan River, Canada. NERC Environmental Information Data Centre https://doi.org/10.5285/7473d4f9-c9a7-40ad-9f58-e58e25997fc5

Spatial representation type

grid Grid

Distance

100  urn:ogc:def:uom:EPSG::9001

Metadata language

EnglishEnglish

Character set

utf8 UTF8

Topic category

• Inland waters

Begin date

2015-05-13

End date

2017-06-12

Unique resource identifier

WGS 84 / UTM zone 13N

Distribution format

• TIFF ()

OnLine resource

Supporting information

Supporting information available to assist in re-use of this dataset

OnLine resource

Download the data

Download a copy of this data

Hierarchy level

dataset Dataset

Other

dataset

Statement

This dataset consists of geolocated aerial orthomosaics of the South Saskatchewan River, near Outlook Canada (UTM Easting and Northing coordinates: 356500, 5712400; Latitude and Longitude: 51.5 N, 107.07 W). Photography was acquired to provide high resolution imagery of the river bed and surrounding valley floor on four occasions (13th May 2015; 2nd Sept 2016; 8th June 2017; and 12th June 2017) and for two separate sections of the river. Images were obtained using conventional aerial plane photography with a 0.06m ground resolution, captured at a height of c. 1500 m from a fixed-wing aeroplane with an UltraCamXp sensor. The orthomosaic was generated from the aerial photography (using up to 160 individual images for each orthomosaic) by automated image matching using the SfM program Pix4D (https://pix4d.com/) with the ‘large frame’ supplementary software package. Bundle adjustment was undertaken using Pix4D’s key point matching system optimised for aerial nadir imagery. Camera properties were specified using calibration certificates and were not allowed to vary during the calculation. The orthomosaic image file includes UTM Easting and Northing coordinates that can be viewed by opening the image in a GIS or other image handling software.

File identifier

7473d4f9-c9a7-40ad-9f58-e58e25997fc5 XML

Metadata language

EnglishEnglish

Character set

ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1

Hierarchy level

dataset Dataset

Hierarchy level name

dataset

Date stamp

2025-04-10T08:30:34

Metadata standard name

UK GEMINI

Metadata standard version

2.3