{"title":"Loch Coire nan Arr - United Kingdom","id":{"prefix":"https:\/\/deims.org\/","suffix":"21b7b232-dfbd-45b2-82e0-c0fc3211d40c"},"type":"site","created":"2023-07-28T13:40:42+02:00","changed":"2025-06-03T13:43:07+02:00","attributes":{"affiliation":{"networks":null,"projects":null},"contact":{"siteManager":[{"type":"person","name":"Don Monteith","email":"donm@ceh.ac.uk","orcid":null}],"operatingOrganisation":null,"metadataProvider":[{"type":"person","name":"Andrew Sier [Primary ECN contact]","email":"arjs@ceh.ac.uk","orcid":null},{"type":"person","name":"Don Monteith","email":"donm@ceh.ac.uk","orcid":null}],"fundingAgency":null,"siteUrl":[{"title":"Loch Coire nan Arr on UWMN","value":"https:\/\/uwmn.uk\/coire-nan-arr"},{"title":"Replacement site - Loch Coire Fionnaraich","value":"https:\/\/deims.org\/5dec238b-bc18-448b-9b0c-5efae38c0cfe"}]},"general":{"abstract":"Situated in north west Scotland Loch Coire nan Arr was chosen as the original control site for the Acid Waters Monitoring Network (now the UK Upland Waters Monitoring Network). The loch lies on the Torridonian sandstones of the Applecross peninsula. The catchment is extensive (897 ha) and dominated on three sides by the steep corrie cliffs which rise to a maximum altitude at Beinn Bhan of 896 m. The floor of the corrie is overlain by peaty podsols whilst above the flatter ground subalpine soils and bare rock predominate. Loch Coire nan Arr was one of the six UK sites represented in the UNECE International Co-operative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes (UNECE - ICP Waters). In the 1991 a temporary dam was placed on the outflow. This was later replaced with a permanent dam. As a result, the site became unsuitable for use the network and was replaced by another site in the same remote area, Loch Coure Fionnaraich.","citation":null,"relatedIdentifiers":null,"status":{"label":"Closed","uri":"http:\/\/vocabs.lter-europe.net\/elter_cl\/10770"},"yearEstablished":1988,"yearClosed":2007,"relatedSites":null,"siteName":"Loch Coire nan Arr","shortName":"UWMN_01","siteType":"Stationary land-based site","protectionLevel":[{"label":"Category IV \u2013 Habitat\/Species Management Area","uri":"http:\/\/dd.eionet.europa.eu\/vocabularyconcept\/cdda\/IucnCategoryValue\/IV"},{"label":"Category V \u2013 Protected Landscape\/Seascape\/Area","uri":"http:\/\/dd.eionet.europa.eu\/vocabularyconcept\/cdda\/IucnCategoryValue\/V"}],"landUse":null,"images":null},"environmentalCharacteristics":{"airTemperature":{"yearlyAverage":null,"monthlyAverage":null,"unit":"\u00b0C","referencePeriod":null},"precipitation":{"yearlyAverage":3300,"monthlyAverage":null,"unit":"mm","referencePeriod":null},"biogeographicalRegion":"atlantic","biome":"freshwater_lakes","ecosystemType":null,"eunisHabitat":null,"landforms":null,"geoBonBiome":["Fresh water lakes"],"geology":"The loch lies on the Torridonian sandstones of the Applecross peninsula.","hydrology":"Loch Coire nan Arr lies in a deep sandstone corrie at 125 m altitude. The loch covers an area of 11.6 ha and receives drainage at its northern end from the Allt Coire nan Arr and elsewhere along the loch from a series of small precipitous inflows. The loch drains 2 km to the sea via the Russell Burn. The loch has a very simple bathymetric profile with a single basin reaching 12 m at the deepest point. In 1991 a temporary dam was placed on the outflow in order to preserve the water supply for a fish farm located downstream from the loch. This structure was replaced by a permanent sluiced dam that has raised water levels within the site by at least 0.5m. Since this dam was constructed water levels have fluctuated far more than in the past, resulting in significant changes in the loch\u0027s aquatic macrophyte communities. This disturbance is the reason that a second site in the same remote area of north west Scotland was chosen for monitoring, Loch Coire Fionnaraich, which has now fully replaced Loch Coire nan Arr.","soils":"The floor of the corrie is overlain by peaty podsols whilst above the flatter ground subalpine soils and bare rock predominate.","vegetation":"The catchment is unafforested (a small block of conifers is planted on the eastern slope, but has failed to mature successfully) and is characterised by acid moorland species, notably Calluna, Erica, Vaccinium and Eriophorum. This vegetation is grazed at a low intensity in summer by sheep, and all year round by red deer, but there is little evidence of any other active land management."},"geographic":{"boundaries":"POLYGON ((-5.657487 57.412207, -5.657487 57.421082, -5.644526 57.421082, -5.644526 57.412207, -5.657487 57.412207))","coordinates":"POINT (-5.6519 57.41731)","country":["United Kingdom"],"elevation":{"avg":125,"min":125,"max":125,"unit":"msl"},"size":{"value":76.76,"unit":"ha"},"relatedLocations":null},"focusDesignScale":{"experiments":{"design":null,"scale":"na"},"observations":{"design":null,"scale":"plot within catchment"},"observedProperties":null},"infrastructure":{"accessibleAllYear":true,"accessType":null,"allPartsAccessible":false,"maintenanceInterval":null,"permanentPowerSupply":false,"operation":{"permanent":false,"notes":"Site no longer monitoring as part of UK Upland Waters Monitoring Network","siteVisitInterval":null},"notes":"Accommodation in nearby villages","collection":null,"data":{"policy":{"url":null,"rights":null,"notes":null}}},"relatedResources":null,"projectRelated":{"lter":{"lterSiteClassification":"na"}}}}