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Mapping winter nutrient concentrations in the OSPAR maritime area using Diva
SMHI, Core Services.
SMHI, Core Services.
2015 (English)Report (Other academic)
Abstract [sv]

Diva (Data Interpolating Variational Analysis) har använts för att skapa interpolerade griddade fält av närsaltskoncentrationer i OSPAR:s maritima område som en del i arbetet med att ta fram gemensamma indikatorer för MSFD (Marine Strategy Framework Directive). Data laddades ner från ICES-databasen och kartor togs fram för DIN, DIP och silikat för vintermånaderna (december-februari) mellan åren 2006 och 2013. På grund av brist på data i områdena I och V lades fokus på regionerna II, III och IV. Mest utmärkande i resultatet av analysen är de höga närsaltskoncentrationerna längs Nordsjöns sydkust. Brist på data, både i stor skala i OSPAR-regionerna I och V och i mindre skala nära kusten, främst nära flodmynningar, är den största felkällan i Diva-analyserna. Detta visar tydligt att datatäcknigen behöver bli bättre inför framtida arbete med indikatorer och i bedömningsprocesser.

Abstract [en]

The Diva software (Data Interpolating Variational Analysis) software was used to create interpolated gridded fields for nutrient concentrations in the OSPAR maritime area to support the ongoing process to develop common indicators for the MSFD (Marine Strategy Framework Directive). Data were downloaded from the ICES database and maps created for DIN, DIP and silicate for the winter months (December – February) covering the period 2006-2013. Lack of data in areas I and V shifted focus to regions II, III and IV. The most prominent results from the analysis are the high values of nutrient concentrations found along the southern shore of the North Sea. The lack of data both at a large scale in OSPAR areas I and V and at a smaller scale near the coast, in particular close to river outlets, is the biggest source of error in the Diva analyses. It is evident that there is a need to increase the data coverage for the future work with indicators and for assessment purposes.

Place, publisher, year, edition, pages
SMHI , 2015. , 15 p.
Series
RO, Report Oceanography, ISSN 0283-1112 ; 52
Identifiers
URN: urn:nbn:se:smhi:diva-2838Local ID: Oceanografi, Rapporter, Serie ROOAI: oai:DiVA.org:smhi-2838DiVA: diva2:948135
Available from: 2015-07-21 Created: 2016-07-08 Last updated: 2016-07-08Bibliographically approved

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Bäck, ÖrjanWenzer, Magnus
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CiteExportLink to record
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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
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