Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Temporal and spatial monitoring of eutrophication variables in CEMP
SMHI, Forskningsavdelningen, Oceanografi.
2008 (engelsk)Rapport (Annet vitenskapelig)
Abstract [en]

The OSPAR Revised Eutrophication Monitoring Programme (ETG 05/3/Info.1-E) requests that nutrient "monitoring should include sufficient samples to confirm that the maximum winter nutrient concentration has been determined", while para. 7 of the Terms of Reference for the preparation of guidance on the spatial and temporal resolution of monitoring for nutrients and eutrophication effects (ICG 003) states that "there are at least nine different water types covered by the OSPAR Maritime Area"..."guidance must, therefore, be at least complex enough to cover each type with sufficient clarity to guide contracting parties in their evaluation of the temporal and spatial coverage required to adequately assess the relevant water body".This document summarises the national reports submitted to the OSPAR Intersessional Correspondence Group on Eutrophication Monitoring, and highlights common problems faced in the monitoring of (primarily) inorganic nutrients and chlorophyll. In addition, it presents tests of different approaches to solving the spatial and temporal sampling problems associated with delivering marine eutrophication data.Based on tests of model data, monthly sampling appears adequate to give a good estimate of annual mean concentrations. Buoy data suggests that this would not be sufficient where there is tidal variability. It was not possible to determine maximum concentrations through a practical ship sampling scheme, or by using extreme value statistics.The optimum sampling programme to observe rapid events is likely to be a combination of ferrybox systems, which appear to be reliable and give both good spatial and temporal coverage, combined with buoy observations. To ensure data of sufficient quality, these must be controlled against conventional research vessel observations. Research vessels still have a role in seasonal mapping, and in providing data of sufficient quality for trend analysis from a large area. This is likely to remain so, at leastuntil technologies such as gliders and optical nutrient sensors become widely available and capable of delivering reliable, high quality data.

sted, utgiver, år, opplag, sider
SMHI , 2008. , s. 57
Serie
RO, Rapport Oceanografi, ISSN 0283-1112 ; 38
Emneord [en]
North Sea, marine monitoring, frequency, nutrients, DIN, DIP, nitrate, chlorophyll a, phytoplankton
Identifikatorer
URN: urn:nbn:se:smhi:diva-2303Lokal ID: Oceanografi, Rapporter, Serie ROOAI: oai:DiVA.org:smhi-2303DiVA, id: diva2:947596
Tilgjengelig fra: 2008-05-04 Laget: 2016-07-08 Sist oppdatert: 2016-07-08bibliografisk kontrollert

Open Access i DiVA

fulltekst(2148 kB)356 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2148 kBChecksum SHA-512
b9fe108038b7daf06f23f67064ce97c49d7b0dc454b8deac7987520a358cbc3796c74018002f19aa38a4286da9cf91694935d00a62d8c9d990732b8f85009344
Type fulltextMimetype application/pdf

Personposter BETA

Axe, Philip

Søk i DiVA

Av forfatter/redaktør
Axe, Philip
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 356 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 96 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.8
|