Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean
© 2020. American Geophysical Union. All Rights Reserved. Isoprene produced by marine phytoplankton acts as a precursor of secondary organic aerosol and thereby affects cloud formation and brightness over the remote oceans. Yet the marine isoprene emission is poorly constrained, with discrepancies am...
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ftunivtsydney:oai:opus.lib.uts.edu.au:10453/145425 2023-05-15T18:24:31+02:00 Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean Rodríguez-Ros P Galí M Cortés P Robinson CM Antoine D Wohl C Yang MX Simó R 2021-01-14T04:15:39Z application/pdf http://hdl.handle.net/10453/145425 English eng AMER GEOPHYSICAL UNION Geophysical Research Letters 10.1029/2020GL087888 Geophysical Research Letters, 2020, 47, (13) 0094-8276 1944-8007 http://hdl.handle.net/10453/145425 info:eu-repo/semantics/restrictedAccess Meteorology & Atmospheric Sciences Journal Article 2021 ftunivtsydney 2022-03-13T13:46:32Z © 2020. American Geophysical Union. All Rights Reserved. Isoprene produced by marine phytoplankton acts as a precursor of secondary organic aerosol and thereby affects cloud formation and brightness over the remote oceans. Yet the marine isoprene emission is poorly constrained, with discrepancies among estimates that reach 2 orders of magnitude. Here we present ISOREMS, the first satellite-only based algorithm for the retrieval of isoprene concentration in the Southern Ocean. Sea surface concentrations from six cruises were matched with remotely sensed variables from MODIS Aqua, and isoprene was best predicted by multiple linear regression with chlorophyll a and sea surface temperature. Climatological (2002–2018) isoprene distributions computed with ISOREMS revealed high concentrations in coastal and near-island waters, and within the 40–50°S latitudinal band. Isoprene seasonality paralleled phytoplankton productivity, with annual maxima in summer. The annual Southern Ocean emission of isoprene was estimated at 63 Gg C yr−1. The algorithm can provide spatially and temporally realistic inputs to atmospheric and climate models. Article in Journal/Newspaper Southern Ocean University of Technology Sydney: OPUS - Open Publications of UTS Scholars Southern Ocean |
institution |
Open Polar |
collection |
University of Technology Sydney: OPUS - Open Publications of UTS Scholars |
op_collection_id |
ftunivtsydney |
language |
English |
topic |
Meteorology & Atmospheric Sciences |
spellingShingle |
Meteorology & Atmospheric Sciences Rodríguez-Ros P Galí M Cortés P Robinson CM Antoine D Wohl C Yang MX Simó R Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean |
topic_facet |
Meteorology & Atmospheric Sciences |
description |
© 2020. American Geophysical Union. All Rights Reserved. Isoprene produced by marine phytoplankton acts as a precursor of secondary organic aerosol and thereby affects cloud formation and brightness over the remote oceans. Yet the marine isoprene emission is poorly constrained, with discrepancies among estimates that reach 2 orders of magnitude. Here we present ISOREMS, the first satellite-only based algorithm for the retrieval of isoprene concentration in the Southern Ocean. Sea surface concentrations from six cruises were matched with remotely sensed variables from MODIS Aqua, and isoprene was best predicted by multiple linear regression with chlorophyll a and sea surface temperature. Climatological (2002–2018) isoprene distributions computed with ISOREMS revealed high concentrations in coastal and near-island waters, and within the 40–50°S latitudinal band. Isoprene seasonality paralleled phytoplankton productivity, with annual maxima in summer. The annual Southern Ocean emission of isoprene was estimated at 63 Gg C yr−1. The algorithm can provide spatially and temporally realistic inputs to atmospheric and climate models. |
format |
Article in Journal/Newspaper |
author |
Rodríguez-Ros P Galí M Cortés P Robinson CM Antoine D Wohl C Yang MX Simó R |
author_facet |
Rodríguez-Ros P Galí M Cortés P Robinson CM Antoine D Wohl C Yang MX Simó R |
author_sort |
Rodríguez-Ros P |
title |
Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean |
title_short |
Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean |
title_full |
Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean |
title_fullStr |
Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean |
title_full_unstemmed |
Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean |
title_sort |
remote sensing retrieval of isoprene concentrations in the southern ocean |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2021 |
url |
http://hdl.handle.net/10453/145425 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Geophysical Research Letters 10.1029/2020GL087888 Geophysical Research Letters, 2020, 47, (13) 0094-8276 1944-8007 http://hdl.handle.net/10453/145425 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766205139650084864 |