Hg0 trends in the North and South Atlantic
It was recently found that atmospheric Hg had decreased with 20-38% worldwide since the mid 1990s. However, the decrease is not supported by emission inventories that show rising global anthropogenic emissions over the past decades. We analyzed atmospheric data from 22 ship cruises in the North Atla...
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ftdoajarticles:oai:doaj.org/article:a627801945e74cf9baf79b4e253a736e 2023-05-15T17:32:23+02:00 Hg0 trends in the North and South Atlantic Soerensen A. L. Jacob D. J. Streets D. Witt M. Ebinghaus R. Mason R. P. Andersson M. Sunderland E. M. 2013-04-01T00:00:00Z https://doi.org/10.1051/e3sconf/20130107002 https://doaj.org/article/a627801945e74cf9baf79b4e253a736e EN FR eng fre EDP Sciences http://dx.doi.org/10.1051/e3sconf/20130107002 https://doaj.org/toc/2267-1242 doi:10.1051/e3sconf/20130107002 2267-1242 https://doaj.org/article/a627801945e74cf9baf79b4e253a736e E3S Web of Conferences, Vol 1, p 07002 (2013) Mercury atmosphere ocean Atlantic trend decline Hg0 Environmental sciences GE1-350 article 2013 ftdoajarticles https://doi.org/10.1051/e3sconf/20130107002 2022-12-31T09:59:57Z It was recently found that atmospheric Hg had decreased with 20-38% worldwide since the mid 1990s. However, the decrease is not supported by emission inventories that show rising global anthropogenic emissions over the past decades. We analyzed atmospheric data from 22 ship cruises in the North Atlantic (defined as 2°N-65°N), and 15 in the South Atlantic (defined as 70°S-8°N) between 1977 and 2010, as well as surface water Hg0 from 10 cruises in the West Atlantic Ocean between 1998 and 2010. Linear regression analysis based on these cruise ensembles for each hemisphere will be discussed. We use the GEOS-Chem biogeochemical model to explore possible drivers of the Hg0 trends found in this study and at previous studies at land based stations. These findings will also be discussed. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles E3S Web of Conferences 1 07002 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English French |
topic |
Mercury atmosphere ocean Atlantic trend decline Hg0 Environmental sciences GE1-350 |
spellingShingle |
Mercury atmosphere ocean Atlantic trend decline Hg0 Environmental sciences GE1-350 Soerensen A. L. Jacob D. J. Streets D. Witt M. Ebinghaus R. Mason R. P. Andersson M. Sunderland E. M. Hg0 trends in the North and South Atlantic |
topic_facet |
Mercury atmosphere ocean Atlantic trend decline Hg0 Environmental sciences GE1-350 |
description |
It was recently found that atmospheric Hg had decreased with 20-38% worldwide since the mid 1990s. However, the decrease is not supported by emission inventories that show rising global anthropogenic emissions over the past decades. We analyzed atmospheric data from 22 ship cruises in the North Atlantic (defined as 2°N-65°N), and 15 in the South Atlantic (defined as 70°S-8°N) between 1977 and 2010, as well as surface water Hg0 from 10 cruises in the West Atlantic Ocean between 1998 and 2010. Linear regression analysis based on these cruise ensembles for each hemisphere will be discussed. We use the GEOS-Chem biogeochemical model to explore possible drivers of the Hg0 trends found in this study and at previous studies at land based stations. These findings will also be discussed. |
format |
Article in Journal/Newspaper |
author |
Soerensen A. L. Jacob D. J. Streets D. Witt M. Ebinghaus R. Mason R. P. Andersson M. Sunderland E. M. |
author_facet |
Soerensen A. L. Jacob D. J. Streets D. Witt M. Ebinghaus R. Mason R. P. Andersson M. Sunderland E. M. |
author_sort |
Soerensen A. L. |
title |
Hg0 trends in the North and South Atlantic |
title_short |
Hg0 trends in the North and South Atlantic |
title_full |
Hg0 trends in the North and South Atlantic |
title_fullStr |
Hg0 trends in the North and South Atlantic |
title_full_unstemmed |
Hg0 trends in the North and South Atlantic |
title_sort |
hg0 trends in the north and south atlantic |
publisher |
EDP Sciences |
publishDate |
2013 |
url |
https://doi.org/10.1051/e3sconf/20130107002 https://doaj.org/article/a627801945e74cf9baf79b4e253a736e |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
E3S Web of Conferences, Vol 1, p 07002 (2013) |
op_relation |
http://dx.doi.org/10.1051/e3sconf/20130107002 https://doaj.org/toc/2267-1242 doi:10.1051/e3sconf/20130107002 2267-1242 https://doaj.org/article/a627801945e74cf9baf79b4e253a736e |
op_doi |
https://doi.org/10.1051/e3sconf/20130107002 |
container_title |
E3S Web of Conferences |
container_volume |
1 |
container_start_page |
07002 |
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1766130470730334208 |