e78e8d36-5cb7-4622-9c03-ae1372aad90c
eng
utf8
dataset
Environment Agency
metadata@environment-agency.gov.uk
pointOfContact
2020-03-19
Environment Agency Metadata Profile
1.1
http://www.opengis.net/def/crs/EPSG/0/27700
WFD Cycle 2 River Invertebrate Classification
2015-12-09
creation
e78e8d36-5cb7-4622-9c03-ae1372aad90c
This dataset is a subset of "WFD Classification Status Cycle 2" and contains classification data for benthic invertebrates in rivers. Benthic invertebrates can be used to indicate the ecological status of a river. Data on number of taxa (NTAXA) and average score per taxa (ASPT) is run through the River Invertebrate Classification Tool (RICT). Bias values are applied to these scores to account for identification and sample sorting errors. The actual (observed) scores are compared with a predicted score (reflecting a river in pristine condition). The comparison of the observed to expected scores is known as an Ecological Quality Ratio (EQR). Means of the annual EQRs are used to produce a benthic invertebrate classification (High, Good, Moderate, Poor, Bad) of the monitoring site for Water Framework Directive (WFD) purposes. The data is then run through another tool called VISCOUS to produce a water body level classification. Attribution statement: © Environment Agency copyright and/or database right 2015. All rights reserved.
Environment Agency
DSPcustomerforum@environment-agency.gov.uk
https://support.environment.data.gov.uk/hc/en-gb
Defra Data Services Forum
pointOfContact
annually
OpenData
theme
EC Directive
theme
water quality
theme
GEMET - Concepts, version 2.4
2010-01-13
publication
geonetwork.thesaurus.external.theme.gemet
Open Government Licence
otherRestrictions
license
copyright
There are no public access constraints to this data. Use of this data is subject to the licence identified.
vector
eng
utf8
environment
true
-6.236
2.072
49.943
55.816
true
GB-ENG
2015-12-02
Proprietary format | MS Excel (XLS)
Unknown
https://ea.sharefile.com/d-s8ccc31b4cfb4c709
External version on Sharefile
https://support.environment.data.gov.uk/hc/en-gb
http:
DSP_CUSTOMER_FORUM
DEFRA Data Services Platform Customer Forum
dataset
NonGeographicDataset
The Water Framework Directive classification system is risk based and focuses on where there is likely to be a problem. It uses a principle known as "one out, all out", which means the poorest individual results drive the overall classification for a water body. It reports on over 30 quality elements, grouped into ecological status and chemical status. Ecological status includes physico-chem (e.g. nutrients, pH, dissolved oxygen, ammonia) , biological elements (e.g. phytoplankton, macroalgae, fish, invertebrates) , specific pollutants (e.g. metals and compounds, organic compounds) , hydromorphology (e.g. depth, width, flow, structure). Chemical status is assessed using priority substances, priority hazardous substances and other pollutants that present a significant risk to the water environment.