Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund
Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-Ålesund, Svalbard, show no overall annual trend between 2000 and 2009. Seasonal trend analysis showed significantly decreasing trends in January, February, March and June (−4.5 to −14.9 pg m −3 yr −1 ) and...
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ftdoajarticles:oai:doaj.org/article:4eced126410e4914a6d3398b568a0dc0 2023-05-15T15:11:45+02:00 Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund T. Berg K. A. Pfaffhuber A. S. Cole O. Engelsen A. Steffen 2013-07-01T00:00:00Z https://doi.org/10.5194/acp-13-6575-2013 https://doaj.org/article/4eced126410e4914a6d3398b568a0dc0 EN eng Copernicus Publications http://www.atmos-chem-phys.net/13/6575/2013/acp-13-6575-2013.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-13-6575-2013 1680-7316 1680-7324 https://doaj.org/article/4eced126410e4914a6d3398b568a0dc0 Atmospheric Chemistry and Physics, Vol 13, Iss 13, Pp 6575-6586 (2013) Physics QC1-999 Chemistry QD1-999 article 2013 ftdoajarticles https://doi.org/10.5194/acp-13-6575-2013 2022-12-31T05:48:13Z Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-Ålesund, Svalbard, show no overall annual trend between 2000 and 2009. Seasonal trend analysis showed significantly decreasing trends in January, February, March and June (−4.5 to −14.9 pg m −3 yr −1 ) and significantly increasing trends in May and July through December (1.5 to 28.7 pg m −3 yr −1 ). Results showed that atmospheric mercury depletion events (AMDEs) were equally distributed between April and May with only a few having been observed in March and June. A negative correlation between AMDEs and temperature is reported and supports earlier observations that AMDEs tend to occur at low temperatures. Lower concentrations of GEM were seen at lower temperatures below a threshold of 0 °C. The occurrence of AMDEs and wind direction were well correlated with the lowest GEM measured when the wind direction was from the Arctic Ocean region. Wind speed was found to not correlate with AMDEs, but the lowest GEM concentrations were observed at low wind speeds between 4 and 11 m s −1 . AMDEs and relative humidity did not correlate well, but the lowest GEM levels appeared when the relative humidity was between 80 and 90%. Diurnal variation was observed especially during the month of March and is probably due to daytime snow surface emission induced by solar radiation. Relationships between GEM concentration and the Northern Hemisphere climate indices were investigated to assess if these climate parameters might reflect different atmospheric conditions that enhance or reduce spring AMDE activity. No consistent pattern was observed. Article in Journal/Newspaper Arctic Arctic Ocean Ny Ålesund Ny-Ålesund Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Ny-Ålesund Svalbard Atmospheric Chemistry and Physics 13 13 6575 6586 |
institution |
Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 T. Berg K. A. Pfaffhuber A. S. Cole O. Engelsen A. Steffen Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-Ålesund, Svalbard, show no overall annual trend between 2000 and 2009. Seasonal trend analysis showed significantly decreasing trends in January, February, March and June (−4.5 to −14.9 pg m −3 yr −1 ) and significantly increasing trends in May and July through December (1.5 to 28.7 pg m −3 yr −1 ). Results showed that atmospheric mercury depletion events (AMDEs) were equally distributed between April and May with only a few having been observed in March and June. A negative correlation between AMDEs and temperature is reported and supports earlier observations that AMDEs tend to occur at low temperatures. Lower concentrations of GEM were seen at lower temperatures below a threshold of 0 °C. The occurrence of AMDEs and wind direction were well correlated with the lowest GEM measured when the wind direction was from the Arctic Ocean region. Wind speed was found to not correlate with AMDEs, but the lowest GEM concentrations were observed at low wind speeds between 4 and 11 m s −1 . AMDEs and relative humidity did not correlate well, but the lowest GEM levels appeared when the relative humidity was between 80 and 90%. Diurnal variation was observed especially during the month of March and is probably due to daytime snow surface emission induced by solar radiation. Relationships between GEM concentration and the Northern Hemisphere climate indices were investigated to assess if these climate parameters might reflect different atmospheric conditions that enhance or reduce spring AMDE activity. No consistent pattern was observed. |
format |
Article in Journal/Newspaper |
author |
T. Berg K. A. Pfaffhuber A. S. Cole O. Engelsen A. Steffen |
author_facet |
T. Berg K. A. Pfaffhuber A. S. Cole O. Engelsen A. Steffen |
author_sort |
T. Berg |
title |
Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
title_short |
Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
title_full |
Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
title_fullStr |
Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
title_full_unstemmed |
Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
title_sort |
ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at zeppelin, ny-ålesund |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/acp-13-6575-2013 https://doaj.org/article/4eced126410e4914a6d3398b568a0dc0 |
geographic |
Arctic Arctic Ocean Ny-Ålesund Svalbard |
geographic_facet |
Arctic Arctic Ocean Ny-Ålesund Svalbard |
genre |
Arctic Arctic Ocean Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Arctic Ocean Ny Ålesund Ny-Ålesund Svalbard |
op_source |
Atmospheric Chemistry and Physics, Vol 13, Iss 13, Pp 6575-6586 (2013) |
op_relation |
http://www.atmos-chem-phys.net/13/6575/2013/acp-13-6575-2013.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-13-6575-2013 1680-7316 1680-7324 https://doaj.org/article/4eced126410e4914a6d3398b568a0dc0 |
op_doi |
https://doi.org/10.5194/acp-13-6575-2013 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
13 |
container_issue |
13 |
container_start_page |
6575 |
op_container_end_page |
6586 |
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