Freshwater river diatom surveys (Biosys)
Summary
The Environment Agency undertakes freshwater and marine biological monitoring in England. This dataset contains site, sample, metric and taxa information from freshwater river diatom (algae) surveys carried out across England from 1993 onwards. Notes: - These survey data are stored in an archive more commonly known as BIOSYS. - This dataset contains Freshwater, River diatom surveys only. - Pollution Samples are excluded from the dataset. - The TDI4 calculations in this dataset were updated in 2017 to correct errors discovered in 2016.
Categories
Use limitation statement
There are no public access constraints to this data. Use of this data is subject to the licence identified.
Licence
Open Government LicenceAttribution statement
© Environment Agency copyright and/or database right 2020. All rights reserved.
Technical information
Update frequency
quarterly
Lineage
This dataset is derived from Biosys and contains all freshwater, river diatom surveys. The data are split into three subsets: Site, metric and taxa information.
Spatial information
Coordinate reference system
http://www.opengis.net/def/crs/EPSG/0/27700Geographic extent
- Latitude from: 49.943 to 55.816
- Longitude from: -6.236 to 2.072
Metadata information
Language
English
Metadata identifier
fc2638d3-8a67-4d17-8f6e-7d72d8e2244e
Published by
Environment Agency
Contact publisher
Defra Data Services ForumDataset reference dates
Creation date
01 November 2019
Revision date
20 June 2024
Publication date
N/A
Period
- From: 04 June 1993
- To: 04 May 2020