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Title: Applictions of Artificial Intelligence in River Quality Surveys
Author: W J Walley
Author: R W Martin
Author: Environment Agency
Author: School of Computing, Staffordshire University
Document Type: Monograph
Annotation: Environment Agency Project ID:EAPRJOUT_277, Representation ID:49, Object ID:1623
This Project Record provides a detailed account of work carried out on National R and D Project E1/i621 ”Applications of Artificial Intelligence in River Quality Surveys”, that was not reported in either Technical Report E12.”Distribution of Macroinvertebrates in English and Welsh Rivers based on the 1995 Survey” or Technical Report E52 ”Applications of Artificial Intelligence for the Biological Surveillance of River Quality”. It mainly covers details of the data validation aspect of the project, but also includes a complete summary of events and dates (Section 1). The data validation component of the project was more substantial than originally envisaged. This was because the initial intention of basing the study on the 1990-94 Survey databases was abandoned when the 1995 Survey databases became available. Thus many of the initial analyses, which were primarily concerned with the validation of the 1990 databases, were repeated later for the 1995 data. Section 2 and Appendix A cover all aspects of the validation of the 1990-94 biological and chemical databases, including summaries of the various analyses, brief details of matched biological and chemical sites and an outline of the problems encountered due to the lack of consistency between regional chemical databases. Section 3 describes the various analyses that were carried out for the validation of the 1995 databases and includes details of how the abundance data from two regions, Midlands (Lower Severn Area) and North West, were manipulated to bring them in line with the national scale for abundance data. Appendix B gives details of errors found in the biological data, plus the agreed list of taxa and details of the regional distribution of validated biological sites. Appendix C gives the site reference number, location and name of all validated biological sites that were included in the project database. It also indicates which of the sites had matched chemical sites. Appendix D lists all biological sites that were rejected during the validation process due to errors or inconsistencies in their data fields. The reasons for rejection are also given.
Publisher: Environment Agency
Publication Date: August 1 1998
Publication Place: Bristol
Subject Keywords: Water monitoringBiological monitoringSurveysWater quality surveys
Extent: 143
Total file downloads: 424

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