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MAGIC library for Swedish lakes: evaluation of multiple calibrations
IVL Swedish Environmental Research Institute.
IVL Swedish Environmental Research Institute.
2013 (English)Report (Other academic)
Abstract [sv]

Den svenska definitionen på antropogen försurning är att pH har sjunkit med 0.4 pH-enheter från förindustriell tid. pH från mitten av 1800-talet uppskattas med hjälp av den dynamiska biogeokemiska modellen MAGIC. Om det inte finns tillräckligt med bakgrundsdata för att modellera kan verktyget MAGIC-biblioteket användas ( www.ivl.se/magicbibliotek ). Sjödelen av MAGIC-biblioteket består av knappt 3000 sjöar i Sverige som har modellerats med MAGIC. Biblioteket har en matchningsrutin som letar fram den sjö i biblioteket som mest liknar den sjö man vill försurningsbedöma. Den pH-förändring som har modellerats fram för sjön i biblioteket antas då även beskriva pH-förändringen i bedömningssjön.

Abstract [en]

Sweden has an official procedure for determining whether or not a water body is acidified, and thereby qualified for remedial measures such as liming. The criterion of anthropogenic acidification is that the decrease in lake pH relative to pre-industrial status be more than 0.4 pH units (?pH). The pre-industrial pH is estimated by means of the dynamic biogeochemical model MAGIC. In cases for which data are insufficient to calibrate MAGIC, an estimation of pre-industrial pH can be obtained by use of the MAGIC library (www.ivl.se/magicbibliotek). The MAGIC library consists of calibrations for hundreds of lakes and streams in Sweden. The library has a matching procedure to select the lake in the library that most closely resembles the lake to be evaluated. The ?pH of the evaluation lake is then assumed to be that of the library lake. 

Place, publisher, year, edition, pages
IVL Svenska Miljöinstitutet, 2013.
Series
B report ; B2104
Keywords [sv]
Acidification, lakes, MAGIC model, MAGIC bibliotek
Identifiers
URN: urn:nbn:se:ivl:diva-2577OAI: oai:DiVA.org:ivl-2577DiVA, id: diva2:1552020
Available from: 2021-05-05 Created: 2021-05-05 Last updated: 2021-05-18Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf