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NCAVEO: River channel survey data collected on the River Test at Chilbolton Cow Common

Update Frequency: Not Planned
Latest Data Update: 2008-09-11
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2008-10-08
Download Stats: last 12 months
Dataset Size: 5 Files | 9MB


The Network for Calibration and Validation of EO data (NCAVEO) ground data collection programme included a series of transects on the River Test at Chilbolton Cow Common, an area of semi-natural wet grassland. The river survey was carried out on the 16th June between 11:15 and 13:15 at site Chilbolton 1 and 15:30-17:00 at Chilbolton 2, the day before the ‘golden day’ on which the airborne data were collected by the Environment Agency / Natural Environment Research Council (NERC).

The sampling strategy used was based on the desire to capture; (1) data over the range of water depths, (2) a dense and extensive sample of data to allow for bathymetric modelling of the river regions and (3) data over a broad range of substrate types to represent all varieties within the study region (e.g. from marginal vegetation to silts and to gravels). The variables recorded included: Easting; Northing; Water depth (cm); Depth to bed (cm); Surface velocity (m/s); Dominant substrate. Surface velocity was measured using a Valeport uni-directional electro-magnetic current meter (Valeport Ltd.). For more information on the collection and processing of the data please see the dataset's metadata document, in linked documentation. A video of David Spear describing the survey is available also included in the directory.

Citable as:  Network for Calibration and Validation of EO data (2008): NCAVEO: River channel survey data collected on the River Test at Chilbolton Cow Common. NERC Earth Observation Data Centre, date of citation.
Abbreviation: Not defined


Previous Info:
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Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

These data were provided to NEODC by university of Southampton, who carried out work to convert formats to NASA-Ames, and write metadata documents. The metadata documents describing the processing are archived alongside the data as PDF files.

Data Quality:
Mostly unknown, but some quality statements are provided in metadata files archived alongside the data.
File Format:
Data are NASA-Ames formatted

Related Documents

 Metadata PDF

Process overview

This dataset was generated by instruments deployed on platforms as listed below.

Instrument/Platform pairings

Valeport current meter Deployed on: Chilbolton Cow Common
Output Description


No variables found.

Temporal Range
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Geographic Extent