Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean
Mineral dust plays an important role in the atmospheric radiation budget as well as in the ocean carbon cycle through fertilization and by ballasting of settling organic matter. However, observational records of open‐ocean dust deposition are sparse. Here, we present the spatial and temporal evoluti...
Published in: | Geophysical Research Letters |
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Language: | English |
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ftnioz:oai:imis.nioz.nl:322117 2023-05-15T17:29:08+02:00 Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean van der Does, M. Brummer, G.-J. A. Crimpen, F.C.J. Korte, L.F. Mahowald, N.M. Merkel, U. Yu, H. Zuidema, P. Stuut, J.-B.W. 2020 http://imis.nioz.nl/imis.php?module=ref&refid=322117 en eng info:eu-repo/semantics/altIdentifier/wos/000529112700036 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1029/2019gl086867 http://imis.nioz.nl/imis.php?module=ref&refid=322117 info:eu-repo/semantics/openAccess %3Ci%3EGeophys.+Res.+Lett.+47%285%29%3C%2Fi%3E%3A+e2019GL086867.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1029%2F2019gl086867%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1029%2F2019gl086867%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2020 ftnioz https://doi.org/10.1029/2019gl086867 2022-05-01T14:11:41Z Mineral dust plays an important role in the atmospheric radiation budget as well as in the ocean carbon cycle through fertilization and by ballasting of settling organic matter. However, observational records of open‐ocean dust deposition are sparse. Here, we present the spatial and temporal evolution of Saharan dust deposition over 2 years from marine sediment traps across the North Atlantic, directly below the core of the Saharan dust plume, with highest dust fluxes observed in summer. We combined the observed deposition fluxes with model simulations and satellite observations and argue that dust deposition in the Atlantic is predominantly controlled by summer rains. The dominant depositional pathway changes from wet deposition in summer to dry deposition in winter. Wet deposition has previously been suggested to increase the release of dust‐derived nutrients and their bioavailability, which may be a key contributor to surface‐ocean productivity in remote and oligotrophic parts of the oceans. Article in Journal/Newspaper North Atlantic NIOZ Repository (Royal Netherlands Institute for Sea Research) Geophysical Research Letters 47 5 |
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Open Polar |
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NIOZ Repository (Royal Netherlands Institute for Sea Research) |
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ftnioz |
language |
English |
description |
Mineral dust plays an important role in the atmospheric radiation budget as well as in the ocean carbon cycle through fertilization and by ballasting of settling organic matter. However, observational records of open‐ocean dust deposition are sparse. Here, we present the spatial and temporal evolution of Saharan dust deposition over 2 years from marine sediment traps across the North Atlantic, directly below the core of the Saharan dust plume, with highest dust fluxes observed in summer. We combined the observed deposition fluxes with model simulations and satellite observations and argue that dust deposition in the Atlantic is predominantly controlled by summer rains. The dominant depositional pathway changes from wet deposition in summer to dry deposition in winter. Wet deposition has previously been suggested to increase the release of dust‐derived nutrients and their bioavailability, which may be a key contributor to surface‐ocean productivity in remote and oligotrophic parts of the oceans. |
format |
Article in Journal/Newspaper |
author |
van der Does, M. Brummer, G.-J. A. Crimpen, F.C.J. Korte, L.F. Mahowald, N.M. Merkel, U. Yu, H. Zuidema, P. Stuut, J.-B.W. |
spellingShingle |
van der Does, M. Brummer, G.-J. A. Crimpen, F.C.J. Korte, L.F. Mahowald, N.M. Merkel, U. Yu, H. Zuidema, P. Stuut, J.-B.W. Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean |
author_facet |
van der Does, M. Brummer, G.-J. A. Crimpen, F.C.J. Korte, L.F. Mahowald, N.M. Merkel, U. Yu, H. Zuidema, P. Stuut, J.-B.W. |
author_sort |
van der Does, M. |
title |
Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean |
title_short |
Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean |
title_full |
Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean |
title_fullStr |
Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean |
title_full_unstemmed |
Tropical rains controlling deposition of Saharan dust across the North Atlantic Ocean |
title_sort |
tropical rains controlling deposition of saharan dust across the north atlantic ocean |
publishDate |
2020 |
url |
http://imis.nioz.nl/imis.php?module=ref&refid=322117 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
%3Ci%3EGeophys.+Res.+Lett.+47%285%29%3C%2Fi%3E%3A+e2019GL086867.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1029%2F2019gl086867%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1029%2F2019gl086867%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000529112700036 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1029/2019gl086867 http://imis.nioz.nl/imis.php?module=ref&refid=322117 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2019gl086867 |
container_title |
Geophysical Research Letters |
container_volume |
47 |
container_issue |
5 |
_version_ |
1766122737500160000 |