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Modelling of surface global radiation and CIE-weighted UV-radiation for the period 1980-2000
SMHI, Samhälle och säkerhet.
SMHI, Samhälle och säkerhet.
2007 (Engelska)Rapport (Övrigt vetenskapligt)
Abstract [sv]

saltning. Detta ökar dock vägslitaget och mängden vägdamm som ackumuleras i vägmiljön, som i sin tur

Abstract [en]

This report presents the procedure for creation of surface global radiation and CIE-weighted UVradiation for the years 1980-2000. The work was ordered by the Swedish Radiation Protection Authority (SSI) on behalf of “Miljömålsrådet”. The created data covers a large geographical areaover northwest Europe with a fine spatial (22x22 km) and temporal resolution (1 hour).The input data are selected from the new version of the Rossby Centre regional atmospheric climate model (RCA3), ERA-40 (www.ecmwf.int/research/era) and observations.For the creation of CIE-weighted UV-radiation, a clear sky model was first used and then a cloud modification model that reduces the clear sky radiation dependent on the cloud amount from theRCA3 model.The report also includes a validation of the modelled CIE-weighted UV-radiation against independent observations. The root mean square deviation is for daily values about 38%, for monthly values, 13% and for yearly values 7%. Also a small bias toward higher modelled UVcompared to observations exists in the data set.For the creation of global radiation, the data has been selected from the RCA3 model with a correction made depended on the sun height. Also for the global radiation the validation results are presented in the report. The root mean square deviation is in the same order as for the modelledCIE-weighted UV-radiation, also here a small bias toward higher modelled values exist, but smaller then for the modelled CIE-weighted UV-radiation.All CIE-weighted UV-radiation and global radiation created in this project are freely available for non-commercial usage at the web-interface, www.smhi.se/strang/omna. Here charts, fields and time series can be selected for hourly, daily, monthly and yearly values.

Ort, förlag, år, upplaga, sidor
SMHI , 2007. , s. 39
Serie
Meteorologi, ISSN 0283-7730 ; 126
Nyckelord [en]
CIE-weighted UV-radiation, global radiation, cloud modification model
Identifikatorer
URN: urn:nbn:se:smhi:diva-2246Lokalt ID: Meteorologi, Rapporter, Serie MeteorologiOAI: oai:DiVA.org:smhi-2246DiVA, id: diva2:947539
Tillgänglig från: 2007-03-28 Skapad: 2016-07-08 Senast uppdaterad: 2016-07-08Bibliografiskt granskad

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