The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network
Using measurements from the national network of 12 weather radar stations for the 11-year period 2000–2010, we investigate the large-scale spatio-temporal variability of precipitation over Sweden. These statistics provide useful information to evaluate regional climate models as well as for hydrolog...
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ftdoajarticles:oai:doaj.org/article:6762170a5cad4e5db9bed702c7a9518c 2023-05-15T15:10:26+02:00 The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network A. Devasthale L. Norin 2014-06-01T00:00:00Z https://doi.org/10.5194/amt-7-1605-2014 https://doaj.org/article/6762170a5cad4e5db9bed702c7a9518c EN eng Copernicus Publications http://www.atmos-meas-tech.net/7/1605/2014/amt-7-1605-2014.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-7-1605-2014 https://doaj.org/article/6762170a5cad4e5db9bed702c7a9518c Atmospheric Measurement Techniques, Vol 7, Iss 6, Pp 1605-1617 (2014) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2014 ftdoajarticles https://doi.org/10.5194/amt-7-1605-2014 2022-12-31T16:21:50Z Using measurements from the national network of 12 weather radar stations for the 11-year period 2000–2010, we investigate the large-scale spatio-temporal variability of precipitation over Sweden. These statistics provide useful information to evaluate regional climate models as well as for hydrology and energy applications. A strict quality control is applied to filter out noise and artifacts from the radar data. We focus on investigating four distinct aspects: the diurnal cycle of precipitation and its seasonality, the dominant timescale (diurnal versus seasonal) of variability, precipitation response to different wind directions, and the correlation of precipitation events with the North Atlantic Oscillation (NAO) and the Arctic Oscillation (AO). When classified based on their intensity, moderate- to high-intensity events (precipitation > 0.34 mm/3 h) peak distinctly during late afternoon over the majority of radar stations in summer and during late night or early morning in winter. Precipitation variability is highest over the southwestern parts of Sweden. It is shown that the high-intensity events (precipitation > 1.7 mm/3 h) are positively correlated with NAO and AO (esp. over northern Sweden), while the low intensity events are negatively correlated (esp. over southeastern parts). It is further observed that southeasterly winds often lead to intense precipitation events over central and northern Sweden, while southwesterly winds contribute most to the total accumulated precipitation for all radar stations. Apart from its operational applications, the present study demonstrates the potential of the weather radar data set for studying climatic features of precipitation over Sweden. Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation Northern Sweden Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Measurement Techniques 7 6 1605 1617 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 A. Devasthale L. Norin The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
Using measurements from the national network of 12 weather radar stations for the 11-year period 2000–2010, we investigate the large-scale spatio-temporal variability of precipitation over Sweden. These statistics provide useful information to evaluate regional climate models as well as for hydrology and energy applications. A strict quality control is applied to filter out noise and artifacts from the radar data. We focus on investigating four distinct aspects: the diurnal cycle of precipitation and its seasonality, the dominant timescale (diurnal versus seasonal) of variability, precipitation response to different wind directions, and the correlation of precipitation events with the North Atlantic Oscillation (NAO) and the Arctic Oscillation (AO). When classified based on their intensity, moderate- to high-intensity events (precipitation > 0.34 mm/3 h) peak distinctly during late afternoon over the majority of radar stations in summer and during late night or early morning in winter. Precipitation variability is highest over the southwestern parts of Sweden. It is shown that the high-intensity events (precipitation > 1.7 mm/3 h) are positively correlated with NAO and AO (esp. over northern Sweden), while the low intensity events are negatively correlated (esp. over southeastern parts). It is further observed that southeasterly winds often lead to intense precipitation events over central and northern Sweden, while southwesterly winds contribute most to the total accumulated precipitation for all radar stations. Apart from its operational applications, the present study demonstrates the potential of the weather radar data set for studying climatic features of precipitation over Sweden. |
format |
Article in Journal/Newspaper |
author |
A. Devasthale L. Norin |
author_facet |
A. Devasthale L. Norin |
author_sort |
A. Devasthale |
title |
The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network |
title_short |
The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network |
title_full |
The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network |
title_fullStr |
The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network |
title_full_unstemmed |
The large-scale spatio-temporal variability of precipitation over Sweden observed from the weather radar network |
title_sort |
large-scale spatio-temporal variability of precipitation over sweden observed from the weather radar network |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/amt-7-1605-2014 https://doaj.org/article/6762170a5cad4e5db9bed702c7a9518c |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation Northern Sweden |
genre_facet |
Arctic North Atlantic North Atlantic oscillation Northern Sweden |
op_source |
Atmospheric Measurement Techniques, Vol 7, Iss 6, Pp 1605-1617 (2014) |
op_relation |
http://www.atmos-meas-tech.net/7/1605/2014/amt-7-1605-2014.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-7-1605-2014 https://doaj.org/article/6762170a5cad4e5db9bed702c7a9518c |
op_doi |
https://doi.org/10.5194/amt-7-1605-2014 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
7 |
container_issue |
6 |
container_start_page |
1605 |
op_container_end_page |
1617 |
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1766341471321980928 |