7473d4f9-c9a7-40ad-9f58-e58e25997fc5 English ISO/IEC 8859-1 (also known as Latin 1) dataset dataset NERC EDS Environmental Information Data Centre Lancaster Environment Centre, Library Avenue, Bailrigg Lancaster LA1 4AP UK info@eidc.ac.uk https://eidc.ac.uk/ EIDC website The Environmental Information Data Centre (EIDC) is the UK's national data centre for terrestrial and freshwater sciences. information pointOfContact 2025-11-13T16:20:54 UK GEMINI 2.3 WGS 84 / UTM zone 13N Orthomosaic imagery for the South Saskatchewan River, Canada 2019-10-29 publication https://catalogue.ceh.ac.uk/id/7473d4f9-c9a7-40ad-9f58-e58e25997fc5 10.5285/7473d4f9-c9a7-40ad-9f58-e58e25997fc5 doi: 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 Data were collected in 2015, 2016 and 2017 to provide high resolution imagery for two sections of the South Saskatchewan River, Canada. Photographs were acquired using conventional aerial plane images with a 0.06m ground resolution, captured at a height of approximately 1500m from a fixed-wing aeroplane with an UltraCamXp sensor. Imagery was obtained on four occasions (13th May 2015; 2nd Sept 2016; 8th June 2017; and 12th June 2017). The dataset consists of eight orthomosaics; one for each of the two river sections on each of the four dates. Images were collected as part of NERC project NE/L00738X/1. Full details about this dataset can be found at https://doi.org/10.5285/7473d4f9-c9a7-40ad-9f58-e58e25997fc5 Ashworth, P. University of Brighton p.ashworth@brighton.ac.uk author Nicholas, A. University of Exeter a.p.nicholas@exeter.ac.uk author Parsons, D. University of Hull d.parsons@hull.ac.uk author Sambrook Smith, G. University of Birmingham g.smith.4@bham.ac.uk https://orcid.org/0000-0002-3707-1182 ORCID record ORCID is an open, non-profit, community-driven effort to create and maintain a registry of unique researcher identifiers and a transparent method of linking research activities and outputs to these identifiers. information author Nicholas, A. University of Exeter a.p.nicholas@exeter.ac.uk pointOfContact NERC EDS Environmental Information Data Centre info@eidc.ac.uk custodian NERC Environmental Information Data Centre info@eidc.ac.uk publisher river GEMET - Concepts, version 4.1.3 2019-01-28 creation Canada GeoNames 2006-01-01 creation South Saskatchewan River otherRestrictions no limitations otherRestrictions © Natural Environment Research Council otherRestrictions This resource is available under the terms of the Open Government Licence otherRestrictions 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 grid 100 English utf8 inlandWaters 2015-05-13 2017-06-12 -107.1 -107 51.4 51.6 TIFF NERC EDS Environmental Information Data Centre info@eidc.ac.uk distributor https://data-package.ceh.ac.uk/sd/7473d4f9-c9a7-40ad-9f58-e58e25997fc5.zip Supporting information Supporting information available to assist in re-use of this dataset information https://catalogue.ceh.ac.uk/datastore/eidchub/7473d4f9-c9a7-40ad-9f58-e58e25997fc5 Download the data Download a copy of this data fileAccess dataset dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 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.