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Predicting the volu...
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Sobek, SebastianUppsala universitet,Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Uppsala University,Institutionen för ekologi och genetik
(författare)
Predicting the volume and depth of lakes from map-derived parameters
- Artikel/kapitelEngelska2011
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LIBRIS-ID:oai:slubar.slu.se:58837
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https://res.slu.se/id/publ/58837URI
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https://doi.org/10.5268/IW-1.3.426DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-187358URI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:ref swepub-contenttype
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Ämneskategori:art swepub-publicationtype
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The volume and depth of a lake are basic properties that greatly affect a wide array of its physical, chemical, and biological properties. Nevertheless, volume and depth data are scarce in lake-rich regions of the world. We coupled the Swedish lake register to GIS-derived geographical and topographical parameters, attempting to predict the volume and depth of 6943 lakes from map-derived parameters only. Lake area and the maximum slope in a 50 m wide zone outside of the lake shoreline were the most important predictors of both lake volume and depth, explaining 92% of the variance in lake volume but <40% of the variance in both maximum and mean depth. Regression parameters of regional submodels of lake volume were similar across geographically and topographically different regions, indicating that the model probably is applicable for glacially formed lakes in general. Despite the high degree of explanation for lake volume, the uncertainty in predicted volume for a single lake is considerable (relative standard deviation, +/- 57%). However, the mean or cumulative lake volume of catchments containing several lakes (n > 15) is predictable from map-derived parameters with a greatly reduced uncertainty.
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Nisell, JakobSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences(Swepub:slu)47288
(författare)
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Fölster, JensSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vatten och miljö,Department of Aquatic Sciences and Assessment,Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences(Swepub:slu)51106
(författare)
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Sveriges lantbruksuniversitetInstitutionen för vatten och miljö
(creator_code:org_t)
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Sveriges lantbruksuniversitet
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Ingår i:Inland Waters1, s. 177-1842044-20412044-205X
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