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-A° lesund, 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 pgm−3 yr−1) and s...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2359723 2023-05-15T15:12:21+02:00 Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund Berg, Torunn Cole, AS Engelsen, Ola Steffen, A Pfaffhuber, Katrine Aspmo 2015-09-30T08:53:08Z http://hdl.handle.net/11250/2359723 https://doi.org/10.5194/acp-13-6575-2013 eng eng European Geosciences Union Atmospheric Chemistry And Physics 2013, 13(13):6575-6586 urn:issn:1680-7324 http://hdl.handle.net/11250/2359723 https://doi.org/10.5194/acp-13-6575-2013 cristin:1054294 6575–6586 13 Atmospheric Chemistry And Physics Journal article Peer reviewed 2015 ftntnutrondheimi https://doi.org/10.5194/acp-13-6575-2013 2019-09-17T06:50:55Z Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-A° lesund, 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 pgm−3 yr−1) and significantly increasing trends in May and July through December (1.5 to 28.7 pgm−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 11ms−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. © Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License. Article in Journal/Newspaper Arctic Arctic Ocean Ny Ålesund Ny-Ålesund Svalbard NTNU Open Archive (Norwegian University of Science and Technology) Arctic Arctic Ocean Lesund ENVELOPE(8.470,8.470,63.331,63.331) Ny-Ålesund Svalbard Atmospheric Chemistry and Physics 13 13 6575 6586 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Results from ten years of gaseous elemental mercury (GEM) measurements at Zeppelin station, Ny-A° lesund, 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 pgm−3 yr−1) and significantly increasing trends in May and July through December (1.5 to 28.7 pgm−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 11ms−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. © Author(s) 2013. This work is distributed under the Creative Commons Attribution 3.0 License. |
format |
Article in Journal/Newspaper |
author |
Berg, Torunn Cole, AS Engelsen, Ola Steffen, A Pfaffhuber, Katrine Aspmo |
spellingShingle |
Berg, Torunn Cole, AS Engelsen, Ola Steffen, A Pfaffhuber, Katrine Aspmo Ten-year trends in atmospheric mercury concentrations, meteorological effects and climate variables at Zeppelin, Ny-Ålesund |
author_facet |
Berg, Torunn Cole, AS Engelsen, Ola Steffen, A Pfaffhuber, Katrine Aspmo |
author_sort |
Berg, Torunn |
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 |
European Geosciences Union |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/2359723 https://doi.org/10.5194/acp-13-6575-2013 |
long_lat |
ENVELOPE(8.470,8.470,63.331,63.331) |
geographic |
Arctic Arctic Ocean Lesund Ny-Ålesund Svalbard |
geographic_facet |
Arctic Arctic Ocean Lesund Ny-Ålesund Svalbard |
genre |
Arctic Arctic Ocean Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Arctic Arctic Ocean Ny Ålesund Ny-Ålesund Svalbard |
op_source |
6575–6586 13 Atmospheric Chemistry And Physics |
op_relation |
Atmospheric Chemistry And Physics 2013, 13(13):6575-6586 urn:issn:1680-7324 http://hdl.handle.net/11250/2359723 https://doi.org/10.5194/acp-13-6575-2013 cristin:1054294 |
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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1766343056528769024 |