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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2013-04-01
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Series: | E3S Web of Conferences |
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Online Access: | http://dx.doi.org/10.1051/e3sconf/20130107002 |
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doaj-a627801945e74cf9baf79b4e253a736e2021-03-02T10:59:39ZengEDP SciencesE3S Web of Conferences2267-12422013-04-0110700210.1051/e3sconf/20130107002Hg0 trends in the North and South AtlanticSoerensen A. L.Jacob D. J.Streets D.Witt M.Ebinghaus R.Mason R. P.Andersson M.Sunderland E. M.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. http://dx.doi.org/10.1051/e3sconf/20130107002MercuryatmosphereoceanAtlantictrenddeclineHg0 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Soerensen A. L. Jacob D. J. Streets D. Witt M. Ebinghaus R. Mason R. P. Andersson M. Sunderland E. M. |
spellingShingle |
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 E3S Web of Conferences Mercury atmosphere ocean Atlantic trend decline Hg0 |
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 |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2013-04-01 |
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. |
topic |
Mercury atmosphere ocean Atlantic trend decline Hg0 |
url |
http://dx.doi.org/10.1051/e3sconf/20130107002 |
work_keys_str_mv |
AT soerensenal hg0trendsinthenorthandsouthatlantic AT jacobdj hg0trendsinthenorthandsouthatlantic AT streetsd hg0trendsinthenorthandsouthatlantic AT wittm hg0trendsinthenorthandsouthatlantic AT ebinghausr hg0trendsinthenorthandsouthatlantic AT masonrp hg0trendsinthenorthandsouthatlantic AT anderssonm hg0trendsinthenorthandsouthatlantic AT sunderlandem hg0trendsinthenorthandsouthatlantic |
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1724235682684076032 |