MODELING PRECIPITATION OVER COMPLEX TERRAIN IN ICELAND
An orographic precipitation model has been used to estimate the spatial distribution of precipitation in Iceland with a horizontal resolution of 1 km and time scales ranging from a day over the period 1958 to 2006. This model combines airflow dynamics with a simple parameterization of cloud physics...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.539.3433 http://www.vedur.is/media/vedurstofan/utgafa/greinargerdir/2009/73_crochet.pdf |
| Summary: | An orographic precipitation model has been used to estimate the spatial distribution of precipitation in Iceland with a horizontal resolution of 1 km and time scales ranging from a day over the period 1958 to 2006. This model combines airflow dynamics with a simple parameterization of cloud physics (cloud water formation time, hydrometeor fallout time, condensed water advection and lee-side evaporation). The model is forced with large-scale atmospheric variables taken from the European Centre for Medium Range Weather Forecast (ECMWF) (Re-)analysis and the model parameters have been optimized using rain-gauge and glaciological data. The results suggest that the model behaves reasonably well in the complex terrain of Iceland and offers a suitable solution for providing detailed estimates of precipitation for various purposes ranging from hydrological and glaciological applications to climatology. |
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