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Video imagery and flow measurements from five surveys on the River Tweed, July 2024-June 2025

This dataset contains river surface velocity data from video footage and from a kinematic current meter, during five surveys on the River Tweed in Scotland from July 2024 to June 2025. For the video footage, different Ground Control Point (GCP) positions and camera angles are adopted for a comparison of error from various image velocimetry techniques. The footage was captured using a nadir angle with a Unmanned Aerial System (UAS), as well as from an oblique view using an iPhone 14 Pro Max camera, with GCPs positioned at the free water surface and at an elevation above the free water surface. The footage frames were extracted and processed using three different image velocimetry softwares (Particle Tracking Velocimetry (PTV), Particle Image Velocimetry (PIV) and Space-Time Image Velocimetry (STIV)). Raw surface velocity outputs from the softwares are recorded herein. The data also includes the extracted frames from the geometrically corrected image velocimetry frames (orthophotos) from the three different viewing angles, and values for tracer density from a preliminary analysis is also included. Discharge data was collated during the final survey in June 2025 using the velocity-area method and salt dilution gauging. This data is recorded alongside an estimation of discharge from image velocimetry surface velocity data using the trapezoidal area of the river. The data was collated for the purpose of evaluating error propagation in image velocimetry applications under operational and sub-optimal environmental conditions. It was collected as part of a PhD project developed to assess the operational efficacy of image velocimetry applications in the UK. The data is complete and unfiltered. Full details about this dataset can be found at https://doi.org/10.5285/c5563ca5-60b9-475b-a4a4-c2d6209674ea

Simple

Date (Publication)
2025-09-17
Identifier
https://catalogue.ceh.ac.uk/id/c5563ca5-60b9-475b-a4a4-c2d6209674ea
Identifier
doi: / 10.5285/c5563ca5-60b9-475b-a4a4-c2d6209674ea
Other citation details
Mandipe, S. (2025). Video imagery and flow measurements from five surveys on the River Tweed, July 2024-June 2025. NERC EDS Environmental Information Data Centre 10.5285/c5563ca5-60b9-475b-a4a4-c2d6209674ea
Point of contact
  UK Centre for Ecology & Hydrology - Sharon Mandipe
Author
  UK Centre for Ecology & Hydrology - Mandipe, S.
https://orcid.org/0000-0002-8972-953X
Owner
  UK Centre for Ecology and Hydrology / University of Reading (Scenario DTP PhD: NERC)
Custodian
  NERC EDS Environmental Information Data Centre
Publisher
  NERC EDS Environmental Information Data Centre
GEMET - INSPIRE themes, version 1.0
  • Hydrography
Access constraints
otherRestrictions Other restrictions
Other constraints
no limitations
Use constraints
otherRestrictions Other restrictions
Other constraints
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: Mandipe, S. (2025). Video imagery and flow measurements from five surveys on the River Tweed, July 2024-June 2025. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/c5563ca5-60b9-475b-a4a4-c2d6209674ea
Spatial representation type
textTable Text, table
Metadata language
EnglishEnglish
Character set
utf8 UTF8
Topic category
  • Environment
  • Inland waters
  • Imagery base maps earth cover
Begin date
2024-06-01
End date
2025-07-31
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Unique resource identifier
WGS 84
Distribution format
  • Comma-separated values (CSV) ()

  • jpg ()

Distributor
  NERC EDS Environmental Information Data Centre
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dataset Dataset
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dataset

Conformance result

Date (Publication)
2010-12-08
Statement
River surface velocity data was derived from video footage processed using three different image velocimetry softwares. Surface velocity values from software are recorded, and video footage is included. River surface velocity data obtained using a current meter is recorded. River discharge data obtained using salt dilution gauging and velocity-area methods is recorded. Ground Control Point (GCP) distance and elevation is recorded. Frame-by-frame images of geometrically corrected footage from the River Tweed, which were post-processed from Image Velocimetry softwares is recorded.
File identifier
c5563ca5-60b9-475b-a4a4-c2d6209674ea 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
2025-09-24T12:25:18
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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Keywords

GEMET - INSPIRE themes, version 1.0
Hydrography

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