Weather model verification using Sodankylä mast measurements
Sodankylä, in the heart of Arctic Research Centre of the Finnish Meteorological Institute (FMI ARC) in northern Finland, is an ideal site for atmospheric and environmental research in the boreal and sub-Arctic zone. With temperatures ranging from −50 to +30 °C, it provides...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-04-01
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| Series: | Geoscientific Instrumentation, Methods and Data Systems |
| Online Access: | http://www.geosci-instrum-method-data-syst.net/5/75/2016/gi-5-75-2016.pdf |
| Summary: | Sodankylä, in the heart of Arctic Research Centre of the Finnish
Meteorological Institute (FMI ARC) in northern Finland, is an ideal site for
atmospheric and environmental research in the boreal and sub-Arctic zone.
With temperatures ranging from −50 to +30 °C, it provides a
challenging testing ground for numerical weather forecasting (NWP) models as
well as weather forecasting in general. An extensive set of measurements has
been carried out in Sodankylä for more than 100 years. In 2000, a 48 m-high
micrometeorological mast was erected in the area. In this article, the
use of Sodankylä mast measurements in NWP model verification is
described. Starting in 2000, with the NWP model HIRLAM and Sodankylä
measurements, the verification system has now been expanded to include
comparisons between 12 NWP models and seven measurement masts, distributed
across Europe. A case study, comparing forecasted and observed radiation
fluxes, is also presented. It was found that three different radiation
schemes, applicable in NWP model HARMONIE-AROME, produced somewhat different
downwelling longwave radiation fluxes during cloudy days, which however did
not change the overall cold bias of the predicted screen-level temperature. |
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| ISSN: | 2193-0856 2193-0864 |