Global multi-scale segmentation of continental and coastal waters from the watersheds to the continental margins

Handle URI:
http://hdl.handle.net/10754/598414
Title:
Global multi-scale segmentation of continental and coastal waters from the watersheds to the continental margins
Authors:
Laruelle, G. G.; Dürr, H. H.; Lauerwald, R.; Hartmann, J.; Slomp, C. P.; Regnier, P. A. G.
Abstract:
Past characterizations of the land–ocean continuum were constructed either from a continental perspective through an analysis of watershed river basin properties (COSCATs: COastal Segmentation and related CATchments) or from an oceanic perspective, through a regionalization of the proximal and distal continental margins (LMEs: large marine ecosystems). Here, we present a global-scale coastal segmentation, composed of three consistent levels, that includes the whole aquatic continuum with its riverine, estuarine and shelf sea components. Our work delineates comprehensive ensembles by harmonizing previous segmentations and typologies in order to retain the most important physical characteristics of both the land and shelf areas. The proposed multi-scale segmentation results in a distribution of global exorheic watersheds, estuaries and continental shelf seas among 45 major zones (MARCATS: MARgins and CATchments Segmentation) and 149 sub-units (COSCATs). Geographic and hydrologic parameters such as the surface area, volume and freshwater residence time are calculated for each coastal unit as well as different hypsometric pro- files. Our analysis provides detailed insights into the distributions of coastal and continental shelf areas and how they connect with incoming riverine fluxes. The segmentation is also used to re-evaluate the global estuarine CO2 flux at the air–water interface combining global and regional average emission rates derived from local studies.
Citation:
Laruelle GG, Dürr HH, Lauerwald R, Hartmann J, Slomp CP, et al. (2012) Global multi-scale segmentation of continental and coastal waters from the watersheds to the continental margins. Hydrol Earth Syst Sci Discuss 9: 11319–11361. Available: http://dx.doi.org/10.5194/hessd-9-11319-2012.
Publisher:
Copernicus GmbH
Journal:
Hydrology and Earth System Sciences Discussions
KAUST Grant Number:
KUK-C1-017-12
Issue Date:
4-Oct-2012
DOI:
10.5194/hessd-9-11319-2012
Type:
Article
ISSN:
1812-2116
Sponsors:
The research leading to these results hasreceived funding from the European Union’s Seventh FrameworkProgram (FP7/2007-2013) under grant agreement no. 283080,project GEOCARBON, by King Abdullah University of Scienceand Technology (KAUST) Center-in-Development Award toUtrecht University: project No. KUK-C1-017-12; by the governmentof the Brussels-Capital Region (Brains Back to Brusselsaward to PR), by the German Science Foundation DFG (DFGprojectHA 4472/6-1) and the Cluster of Excellence “CliSAP”(DFG, EXC177), Universit¨at Hamburg. H. H. D¨urr receivedfunding from NSERC (Canada Excellence Research Chair inEcohydrology – Philippe van Cappellen). N. Goossens is fundedby a FRIA (FRS-FNRS) grant.
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Full metadata record

DC FieldValue Language
dc.contributor.authorLaruelle, G. G.en
dc.contributor.authorDürr, H. H.en
dc.contributor.authorLauerwald, R.en
dc.contributor.authorHartmann, J.en
dc.contributor.authorSlomp, C. P.en
dc.contributor.authorRegnier, P. A. G.en
dc.date.accessioned2016-02-25T13:20:19Zen
dc.date.available2016-02-25T13:20:19Zen
dc.date.issued2012-10-04en
dc.identifier.citationLaruelle GG, Dürr HH, Lauerwald R, Hartmann J, Slomp CP, et al. (2012) Global multi-scale segmentation of continental and coastal waters from the watersheds to the continental margins. Hydrol Earth Syst Sci Discuss 9: 11319–11361. Available: http://dx.doi.org/10.5194/hessd-9-11319-2012.en
dc.identifier.issn1812-2116en
dc.identifier.doi10.5194/hessd-9-11319-2012en
dc.identifier.urihttp://hdl.handle.net/10754/598414en
dc.description.abstractPast characterizations of the land–ocean continuum were constructed either from a continental perspective through an analysis of watershed river basin properties (COSCATs: COastal Segmentation and related CATchments) or from an oceanic perspective, through a regionalization of the proximal and distal continental margins (LMEs: large marine ecosystems). Here, we present a global-scale coastal segmentation, composed of three consistent levels, that includes the whole aquatic continuum with its riverine, estuarine and shelf sea components. Our work delineates comprehensive ensembles by harmonizing previous segmentations and typologies in order to retain the most important physical characteristics of both the land and shelf areas. The proposed multi-scale segmentation results in a distribution of global exorheic watersheds, estuaries and continental shelf seas among 45 major zones (MARCATS: MARgins and CATchments Segmentation) and 149 sub-units (COSCATs). Geographic and hydrologic parameters such as the surface area, volume and freshwater residence time are calculated for each coastal unit as well as different hypsometric pro- files. Our analysis provides detailed insights into the distributions of coastal and continental shelf areas and how they connect with incoming riverine fluxes. The segmentation is also used to re-evaluate the global estuarine CO2 flux at the air–water interface combining global and regional average emission rates derived from local studies.en
dc.description.sponsorshipThe research leading to these results hasreceived funding from the European Union’s Seventh FrameworkProgram (FP7/2007-2013) under grant agreement no. 283080,project GEOCARBON, by King Abdullah University of Scienceand Technology (KAUST) Center-in-Development Award toUtrecht University: project No. KUK-C1-017-12; by the governmentof the Brussels-Capital Region (Brains Back to Brusselsaward to PR), by the German Science Foundation DFG (DFGprojectHA 4472/6-1) and the Cluster of Excellence “CliSAP”(DFG, EXC177), Universit¨at Hamburg. H. H. D¨urr receivedfunding from NSERC (Canada Excellence Research Chair inEcohydrology – Philippe van Cappellen). N. Goossens is fundedby a FRIA (FRS-FNRS) grant.en
dc.publisherCopernicus GmbHen
dc.titleGlobal multi-scale segmentation of continental and coastal waters from the watersheds to the continental marginsen
dc.typeArticleen
dc.identifier.journalHydrology and Earth System Sciences Discussionsen
dc.contributor.institutionBiogeochemical Modelling of the Earth System, Dept. of Earth & Environmental Sciences, CP 160/02, Universite Libre de Bruxelles, 1050 Brussels, Belgiumen
dc.contributor.institutionDepartment of Earth Sciences – Geochemistry, Faculty of Geosciences, Utrecht University, Utrecht, the Netherlandsen
dc.contributor.institutionInstitute for Biogeochemistry and Marine Chemistry, KlimaCampus, Universitat Hamburg, Bundesstrasse 55, 20146 Hamburg, Germanyen
dc.contributor.institutionEcohydrology Reserach Group, Dept. Earth and Environmental Sciences, University of Waterloo, Waterloo, ON, N2L 3G1, Canadaen
kaust.grant.numberKUK-C1-017-12en
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