Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Numerical simulations of frazil ice dynamics in the upper layers of the ocean
SMHI, Forskningsavdelningen, Oceanografi.
SMHI, Forskningsavdelningen, Oceanografi.ORCID-id: 0000-0002-4971-9441
1998 (Engelska)Ingår i: Cold Regions Science and Technology, ISSN 0165-232X, E-ISSN 1872-7441, Vol. 28, nr 1, s. 29-44Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The frazil ice dynamics in a turbulent Ekman layer have been investigated using a mathematical model. The model is based on the conservation equations for mean momentum, energy and salinity, and employs a two-equation turbulence model for the determination of turbulent diffusion coefficients. A crystal number continuity equation is used for the prediction of the frazil ice dynamics. This equation considers several processes of importance, as for example turbulent diffusion, gravitational up-drift, flocculation/break-up and growth. The results focus on the frazil ice characteristics in the upper layers of the ocean, like suspended ice volume, ice crystals per m(3), vertical distributions, etc. From the idealized calculations, it is indicated that a large number of ice crystals can be mixed into the ocean during freezing. However, the amount of ice in suspension, measured as vertically integrated ice thickness, adds only a minor part to the total surface ice budget. Small crystals are mixed deep in the ocean while the large ones are found only in the top of the mixed layer. Knowledge about the vertical distribution of ice crystals of different sizes, which is calculated from the model, should be of importance when analysing processes as formation of ice covers in the ocean and ice-sediment or ice-algae interaction. (C) 1998 Elsevier Science B.V. All rights reserved.

Ort, förlag, år, upplaga, sidor
1998. Vol. 28, nr 1, s. 29-44
Nyckelord [en]
frazil ice, Ekman layer, turbulence
Nationell ämneskategori
Oceanografi, hydrologi och vattenresurser
Forskningsämne
Oceanografi
Identifikatorer
URN: urn:nbn:se:smhi:diva-1554DOI: 10.1016/S0165-232X(98)00011-1ISI: 000076787900002OAI: oai:DiVA.org:smhi-1554DiVA, id: diva2:850974
Tillgänglig från: 2015-09-03 Skapad: 2015-08-31 Senast uppdaterad: 2018-05-22Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext

Person

Omstedt, Anders

Sök vidare i DiVA

Av författaren/redaktören
Omstedt, Anders
Av organisationen
Oceanografi
I samma tidskrift
Cold Regions Science and Technology
Oceanografi, hydrologi och vattenresurser

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 78 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf