Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • 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
Parameterization of lake thermodynamics in a high-resolution weather forecasting model
SMHI, Samhälle och säkerhet.
SMHI, Forskningsavdelningen, Meteorologi.ORCID-id: 0000-0001-8376-2729
SMHI, Forskningsavdelningen, Oceanografi.ORCID-id: 0000-0002-4971-9441
1996 (engelsk)Inngår i: Tellus. Series A, Dynamic meteorology and oceanography, ISSN 0280-6495, E-ISSN 1600-0870, Vol. 48, nr 5, s. 608-621Artikkel i tidsskrift (Fagfellevurdert) Published
Resurstyp
Text
Abstract [en]

A model for the parameterization of lake temperatures and lake ice thicknesses in atmospheric models is presented. The model is verified independently, and it is also tested within the framework of the High Resolution Limited Area Model(HIRLAM), applied operationally for short range weather forecasting at the Swedish Meteorological and Hydrological Institute (SMHI). The lake model is a slab model based upon energy conservation and treats the lakes as well mixed boxes with depths represented by the mean depths. The model is forced by near surface fluxes calculated from total cloudiness, air temperature, air humidity and low-level winds. A data base, describing 92000 Swedish lakes. provides the model with lake mean depths, areal sizes and locations. When the model is used for parameterization of lake effects in the atmospheric model, all the smaller lakes and the fractions of larger lakes within each horizontal grid square of the atmospheric model are parameterized by four model lakes, representing the lake size distribution. The verification of the lake model is done by comparing it with a more advanced, vertically resolved model, including parameterization of turbulent mixing processes, as well as by comparison with observations. A sensitivity test shows great interannual variations of the ice-covered season, which implies that lake models should be used instead of climate data. The results from an experiment with two-way coupling of the lake model to the atmospheric model are verified by comparing forecasted weather parameters with routine meteorological observations. These results show that the impact of lake effects can reach several degrees C in air temperatures close to the surface.

sted, utgiver, år, opplag, sider
1996. Vol. 48, nr 5, s. 608-621
HSV kategori
Forskningsprogram
Hydrologi
Identifikatorer
URN: urn:nbn:se:smhi:diva-1629DOI: 10.1034/j.1600-0870.1996.t01-4-00002.xISI: A1996VV42600002OAI: oai:DiVA.org:smhi-1629DiVA, id: diva2:897786
Konferanse
1st Study Conference on BALTEX, AUG 28-SEP 01, 1995, VISBY, SWEDEN
Tilgjengelig fra: 2016-01-26 Laget: 2015-12-22 Sist oppdatert: 2018-05-24

Open Access i DiVA

fulltext(1169 kB)126 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 1169 kBChecksum SHA-512
a593b49aa638018ca88987e61d0ea83e12bda21747278db486fc2026d7c7515d68c6266f80c9e31bee368c8003b5f436526dee97c6bf45c6cb23e977bffbef59
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Personposter BETA

Ljungemyr, PatrikGustafsson, NilsOmstedt, Anders

Søk i DiVA

Av forfatter/redaktør
Ljungemyr, PatrikGustafsson, NilsOmstedt, Anders
Av organisasjonen
I samme tidsskrift
Tellus. Series A, Dynamic meteorology and oceanography

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 126 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 92 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • 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. 2.35.9
|