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

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

Permalink

Publisher:: AMER GEOPHYSICAL UNION
Publication Type:: Journal Article
Citation:: Geophysical Research Letters, 2020, 47, (13)
Issue Date:: 2020-07-16

Closed Access

	Filename	Description	Size
	2020GL087888.pdf	Published version	4.39 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Rodríguez-Ros, P
dc.contributor.author	Galí, M
dc.contributor.author	Cortés, P
dc.contributor.author	Robinson, CM
dc.contributor.author	Antoine, D
dc.contributor.author	Wohl, C
dc.contributor.author	Yang, MX
dc.contributor.author	Simó, R
dc.date.accessioned	2021-01-14T04:15:50Z
dc.date.available	2021-01-14T04:15:50Z
dc.date.issued	2020-07-16
dc.identifier.citation	Geophysical Research Letters, 2020, 47, (13)
dc.identifier.issn	0094-8276
dc.identifier.issn	1944-8007
dc.identifier.uri	http://hdl.handle.net/10453/145425
dc.description.abstract	© 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.
dc.language	English
dc.publisher	AMER GEOPHYSICAL UNION
dc.relation.ispartof	Geophysical Research Letters
dc.relation.isbasedon	10.1029/2020GL087888
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject.classification	Meteorology & Atmospheric Sciences
dc.title	Remote Sensing Retrieval of Isoprene Concentrations in the Southern Ocean
dc.type	Journal Article
utslib.citation.volume	47
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2021-01-14T04:15:39Z
pubs.issue	13
pubs.publication-status	Published
pubs.volume	47
utslib.citation.issue	13

Abstract:

© 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.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/145425