20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard
A 20-year dataset of weekly precipitation observations in Ny-Ålesund, Svalbard, was analysed to assess atmospheric wet deposition of nitrogen. Mean annual total nitrogen deposition was 74 mg N/(m2 yr) but exhibited large interannual variability and was dominated by highly episodic “strong” events, p...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Advances in Meteorology |
| Online Access: | http://dx.doi.org/10.1155/2011/406508 |
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| author | Rafael Kühnel Tjarda J. Roberts Mats P. Björkman Elisabeth Isaksson Wenche Aas Kim Holmén Johan Ström |
| author_facet | Rafael Kühnel Tjarda J. Roberts Mats P. Björkman Elisabeth Isaksson Wenche Aas Kim Holmén Johan Ström |
| author_sort | Rafael Kühnel |
| collection | DOAJ |
| description | A 20-year dataset of weekly precipitation observations in Ny-Ålesund, Svalbard, was analysed to assess atmospheric wet deposition of nitrogen. Mean annual total nitrogen deposition was 74 mg N/(m2 yr) but exhibited large interannual variability and was dominated by highly episodic “strong” events, probably caused by rapid transport from European sources. The majority (90%) of precipitation samples were defined as “weak” (<2 mg N/m2) and contributed an annual baseline of ~17 mg N/(m2 yr), whereas 10% of precipitation samples were defined as “strong” (>2 mg N/m2) and additionally contributed up to 225 mg N/(m2 yr). Nitrate deposition largely occurred in samples within the solid-precipitation season (16 September–2 June), and ammonium deposition occurred equally in both solid and liquid seasons. Trends of reactive nitrogen emissions from Europe are uncertain, and increasing cyclonic activity over the North Atlantic caused by a changing climate might lead to more strong deposition events in Svalbard. |
| format | Article |
| id | doaj-art-d3f7ba6013304fadb5def9a1a0df94f6 |
| institution | Kabale University |
| issn | 1687-9309 1687-9317 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Meteorology |
| spelling | doaj-art-d3f7ba6013304fadb5def9a1a0df94f62025-02-03T05:51:40ZengWileyAdvances in Meteorology1687-93091687-93172011-01-01201110.1155/2011/40650840650820-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, SvalbardRafael Kühnel0Tjarda J. Roberts1Mats P. Björkman2Elisabeth Isaksson3Wenche Aas4Kim Holmén5Johan Ström6Norwegian Polar Institute, Fram Centre, 9296 Tromsø, NorwayNorwegian Polar Institute, Fram Centre, 9296 Tromsø, NorwayNorwegian Polar Institute, Fram Centre, 9296 Tromsø, NorwayNorwegian Polar Institute, Fram Centre, 9296 Tromsø, NorwayNorwegian Institute for Air Research, P.O. Box 100, N-2027 Kjeller, NorwayNorwegian Polar Institute, Fram Centre, 9296 Tromsø, NorwayDepartment of Applied Environmental Science, Stockholm University, Svante Arrhenius väg 8, 11418 Stockholm, SwedenA 20-year dataset of weekly precipitation observations in Ny-Ålesund, Svalbard, was analysed to assess atmospheric wet deposition of nitrogen. Mean annual total nitrogen deposition was 74 mg N/(m2 yr) but exhibited large interannual variability and was dominated by highly episodic “strong” events, probably caused by rapid transport from European sources. The majority (90%) of precipitation samples were defined as “weak” (<2 mg N/m2) and contributed an annual baseline of ~17 mg N/(m2 yr), whereas 10% of precipitation samples were defined as “strong” (>2 mg N/m2) and additionally contributed up to 225 mg N/(m2 yr). Nitrate deposition largely occurred in samples within the solid-precipitation season (16 September–2 June), and ammonium deposition occurred equally in both solid and liquid seasons. Trends of reactive nitrogen emissions from Europe are uncertain, and increasing cyclonic activity over the North Atlantic caused by a changing climate might lead to more strong deposition events in Svalbard.http://dx.doi.org/10.1155/2011/406508 |
| spellingShingle | Rafael Kühnel Tjarda J. Roberts Mats P. Björkman Elisabeth Isaksson Wenche Aas Kim Holmén Johan Ström 20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard Advances in Meteorology |
| title | 20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard |
| title_full | 20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard |
| title_fullStr | 20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard |
| title_full_unstemmed | 20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard |
| title_short | 20-Year Climatology of NO3 − and NH4 + Wet Deposition at Ny-Ålesund, Svalbard |
| title_sort | 20 year climatology of no3 and nh4 wet deposition at ny alesund svalbard |
| url | http://dx.doi.org/10.1155/2011/406508 |
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