Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ...
We quantified postdepositional losses of methane sulfonate (MSA-), nitrate, and chloride at the European Project for Ice Coring in Antarctica (EPICA) drilling site in Dronning Maud Land (DML) (75°S, 0°E). Analyses of four intermediate deep firn cores and 13 snow pits were considered. We found that a...
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ftdatacite:10.1594/pangaea.855383 2023-10-01T03:51:12+02:00 Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... Weller, Rolf Traufetter, Fidan Fischer, H Oerter, Hans Piel, Claudia Miller, Heinz 2004 application/zip https://dx.doi.org/10.1594/pangaea.855383 https://doi.pangaea.de/10.1594/PANGAEA.855383 en eng PANGAEA https://dx.doi.org/10.1029/2003jd004189 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Atmospheric Chemistry @ AWI AWI_AC European Project for Ice Coring in Antarctica EPICA Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Supplementary Publication Series of Datasets article Collection 2004 ftdatacite https://doi.org/10.1594/pangaea.85538310.1029/2003jd004189 2023-09-04T14:52:34Z We quantified postdepositional losses of methane sulfonate (MSA-), nitrate, and chloride at the European Project for Ice Coring in Antarctica (EPICA) drilling site in Dronning Maud Land (DML) (75°S, 0°E). Analyses of four intermediate deep firn cores and 13 snow pits were considered. We found that about 26 ± 13% of the once deposited nitrate and typically 51 ± 20% of MSA- were lost, while for chloride, no significant depletion could be observed in firn older than one year. Assuming a first order exponential decay rate, the characteristic e-folding time for MSA- is 6.4 ± 3 years and 19 ± 6 years for nitrate. It turns out that for nitrate and MSA- the typical mean concentrations representative for the last 100 years were reached after 5.4 and 6.5 years, respectively, indicating that beneath a depth of around 1.2-1.4 m postdepositional losses can be neglected. In the area of investigation, only MSA- concentrations and postdepositional losses showed a distinct dependence on snow accumulation rate. Consequently, ... : Supplement to: Weller, Rolf; Traufetter, Fidan; Fischer, H; Oerter, Hans; Piel, Claudia; Miller, Heinz (2004): Postdepositional losses of methane sulfonate, nitrate, and chloride at the European Project for Ice Coring in Antarctica deep-drilling site in Dronning Maud Land, Antarctica. Journal of Geophysical Research, 109(D7) ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic DML Dronning Maud Land EPICA Sea ice DataCite Metadata Store (German National Library of Science and Technology) Antarctic Arctic Dronning Maud Land Weller ENVELOPE(50.667,50.667,-67.283,-67.283) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Atmospheric Chemistry @ AWI AWI_AC European Project for Ice Coring in Antarctica EPICA Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
spellingShingle |
Atmospheric Chemistry @ AWI AWI_AC European Project for Ice Coring in Antarctica EPICA Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 Weller, Rolf Traufetter, Fidan Fischer, H Oerter, Hans Piel, Claudia Miller, Heinz Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... |
topic_facet |
Atmospheric Chemistry @ AWI AWI_AC European Project for Ice Coring in Antarctica EPICA Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas SPP1158 |
description |
We quantified postdepositional losses of methane sulfonate (MSA-), nitrate, and chloride at the European Project for Ice Coring in Antarctica (EPICA) drilling site in Dronning Maud Land (DML) (75°S, 0°E). Analyses of four intermediate deep firn cores and 13 snow pits were considered. We found that about 26 ± 13% of the once deposited nitrate and typically 51 ± 20% of MSA- were lost, while for chloride, no significant depletion could be observed in firn older than one year. Assuming a first order exponential decay rate, the characteristic e-folding time for MSA- is 6.4 ± 3 years and 19 ± 6 years for nitrate. It turns out that for nitrate and MSA- the typical mean concentrations representative for the last 100 years were reached after 5.4 and 6.5 years, respectively, indicating that beneath a depth of around 1.2-1.4 m postdepositional losses can be neglected. In the area of investigation, only MSA- concentrations and postdepositional losses showed a distinct dependence on snow accumulation rate. Consequently, ... : Supplement to: Weller, Rolf; Traufetter, Fidan; Fischer, H; Oerter, Hans; Piel, Claudia; Miller, Heinz (2004): Postdepositional losses of methane sulfonate, nitrate, and chloride at the European Project for Ice Coring in Antarctica deep-drilling site in Dronning Maud Land, Antarctica. Journal of Geophysical Research, 109(D7) ... |
format |
Article in Journal/Newspaper |
author |
Weller, Rolf Traufetter, Fidan Fischer, H Oerter, Hans Piel, Claudia Miller, Heinz |
author_facet |
Weller, Rolf Traufetter, Fidan Fischer, H Oerter, Hans Piel, Claudia Miller, Heinz |
author_sort |
Weller, Rolf |
title |
Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... |
title_short |
Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... |
title_full |
Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... |
title_fullStr |
Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... |
title_full_unstemmed |
Mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of Dronning Maud Land ... |
title_sort |
mean snow accumulation rate, and mean methane sulfonate, chloride and nitrate concentration in snow pits and firn cores of dronning maud land ... |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://dx.doi.org/10.1594/pangaea.855383 https://doi.pangaea.de/10.1594/PANGAEA.855383 |
long_lat |
ENVELOPE(50.667,50.667,-67.283,-67.283) |
geographic |
Antarctic Arctic Dronning Maud Land Weller |
geographic_facet |
Antarctic Arctic Dronning Maud Land Weller |
genre |
Antarc* Antarctic Antarctica Arctic DML Dronning Maud Land EPICA Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic DML Dronning Maud Land EPICA Sea ice |
op_relation |
https://dx.doi.org/10.1029/2003jd004189 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.85538310.1029/2003jd004189 |
_version_ |
1778533032324497408 |