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| Titel |
Growing season precipitation in Finland under recent and projected climate |
| VerfasserIn |
J. S. Ylhäisi, , H. Tietäväinen, P. Peltonen-Sainio, A. Venäläinen, J. Eklund, J. Räisänen, K. Jylhä |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 7 ; Nr. 10, no. 7 (2010-07-16), S.1563-1574 |
| Datensatznummer |
250008313
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| Publikation (Nr.) |
 copernicus.org/nhess-10-1563-2010.pdf |
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| Zusammenfassung |
| The past and projected future precipitation sum in May–September for two
areas in Finland, one located in the south-west (SW) and the other in the
north-east (NE), is studied using 13 regional climate simulations and three
observational datasets. The conditions in the present-day climate for
agricultural crop production are far more favourable in the south-western
part of the country than the more continental north-eastern Finland. Based on
a new high-resolution observational precipitation dataset for Finland
(FMI_grid), with a resolution of 10×10 km, the only
statistically significant past long-term (1908–2008) precipitation
tendencies in the two study regions are positive. Differences between
FMI_grid and two other observational datasets during 1961–2000
are rather large in the NE, whereas in the SW the datasets agree better.
Observational uncertainties stem from the interpolation and sampling errors.
The projected increases in precipitation in the early stage of the growing
season would be most favourable for agricultural productivity, but the
projected increases in August and September might be harmful. Model
projections for the future indicate a statistically significant increase in
precipitation for most of the growing season by 2100, but the distribution of
precipitation within the growing season is not necessarily the most optimal. |
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