Sökning: "WRF model"

Visar resultat 11 - 15 av 19 uppsatser innehållade orden WRF model.

  1. 11. Case study of the extreme precipitation events in the south-western part of Sweden, August 2014

    Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Anna Vesslén; [2015]
    Nyckelord :;

    Sammanfattning : In August 2014, parts of south-western Sweden were flooded due to intense precipitation. It caused large material damages and problems in the infrastructure. Since the sea surface temperature (SST) was higher than normal during the month, it was speculated that it was one of the reasons for the heavy precipitation. LÄS MER

  3. 12. An Investigation of the Relation between Sea Breeze Circulation and Diurnal Variation of Methane at a Swedish Lake

    Magister-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Martin Svensson; [2015]
    Nyckelord :WRF model; Sea breeze; methane emission; diurnal variation; internal boundary layer; WRF-modellen; sjöbris; metanemission; dygnsvariation; internt gränsskikt;

    Sammanfattning : Methane measurements over lake Tämnaren show a pronounced diurnal variation with high values at night and low values during daytime. The atmosphere over the lake and its surroundings is simulated with two different settings and resolutions of the WRF model during a period of eight days in May 2011 to investigate if a lake/land breeze circulation could be the cause of the observed methane variation. LÄS MER

  4. 13. WRF-data analysis at Svalbard 1989-2010

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Jon Jörpeland; [2014]
    Nyckelord :;

    Sammanfattning : A polaroptimized mesoscale climate model, Polar Weather Research and Forcasting model (WRF), has been used over the Svalbard archipelago for analysing last trends in climate. The climate model has been downscaled by the reanalysis model ERA-Interim to 8 km spatial resolution for the period 1989-2010. LÄS MER

  5. 14. Study and implementation of mesoscale weather forecasting models in the wind industry

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Bénédicte Jourdier; [2012]
    Nyckelord :Mesoscale; weather; wind; energy; WRF;

    Sammanfattning : As the wind industry is developing, it is asking for more reliable short-term wind forecasts to better manage the wind farms’ operations and electricity production. Developing new wind farms also requires correct assessments of the long-term wind potentials to decide whether to install a wind farm at a specific location. LÄS MER

  7. 15. Regional Precipitation Study in Central America, Using the WRF Model

    Magister-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Tito Maldonado; [2012]
    Nyckelord :WRF; Central America; precipitation; dynamical downscaling; regional models; reanalysis; cumulus parameterization schemes.; WRF; Centralamerika; nederbörd; dynamiska nedskalning; regionala modeller; reanalys; cumulus parametrisering system;

    Sammanfattning : Using the regional climate model WRF, and the NCEP-NCAR Reanalysis Project data asboundary and initial conditions, regional precipitation was estimated by means of thedynamical downscaling technique for two selected periods, January 2000 and September2007. These months show very particular climatic characteristics of the precipitationregimen in Central America, like dry (wet) conditions in the Pacific (Caribbean) coast of theCentral American isthmus, in January, and wet (dry) conditions, respectively in each coast,during September. LÄS MER