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Defining Spatial and Temporal Hydromorphological Sampling Strategies for the Leigh Brook River Site

Rivas-Casado, M. and Bellamy, P. and White, S. and Maddock, Ian and Dunbar, M. and Booker, D.J. (2005) Defining Spatial and Temporal Hydromorphological Sampling Strategies for the Leigh Brook River Site. In: Proceedings of the 7th meeting of the EU COST Action 626 in Aquatic Habitat Modelling. National Environmental Resarch Institute, Silkeborg Denmark, pp. 293-304. ISBN 87-7772-873-4

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Abstract

Detailed surveys of depth and velocity are undertaken to describe hydro-ecological status of rivers. Fieldwork for these surveys is time consuming and expensive. This paper aims to describe the methodology applied in order to determine the most suitable depth sampling strategy for effective field data collection and river representation in time and space at the Leigh Brook river site, Worcester, UK. The accuracy of three different sampling strategies for predicting depth at non-measured points has been compared and the mesohabitats that better characterise depth changes due to variations in discharge have been identified. The results show that depth changes due to discharge change are mainly located at shallow and deep glide mesohabitat types. The analysis for the comparison of sampling strategies indicates that grid sampling strategies give better results than regular transects. Since the results also show that higher errors in predictions are obtained in the deepest areas, higher sampling densities should be applied in these locations.

Item Type: Book Section
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Subjects: G Geography. Anthropology. Recreation > GB Physical geography
G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
Q Science > QH Natural history > QH301 Biology
T Technology > TC Hydraulic engineering. Ocean engineering
T Technology > TD Environmental technology. Sanitary engineering
Divisions: Academic Departments > Institute of Science and the Environment
Depositing User: Ian Maddock
Date Deposited: 01 Jul 2014 15:30
Last Modified: 09 Jan 2017 10:36
URI: https://eprints.worc.ac.uk/id/eprint/3144

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