Investigating Rhône River plume (Gulf of Lions, France) dynamics using metrics analysis from the MERIS 300m Ocean Color archive (2002 − 2012)

Type Article
Date 2017-07
Language English
Author(s) Gangloff Aurelien1, Verney RomaricORCID1, Doxaran David2, Ody Anouck2, Estournel Claude3, 4
Affiliation(s) 1 : IFREMER, Lab DYNECO DHYSED, PB70, F-29280 Plouzane, France.
2 : UPMC, CNRS, Lab Oceanog Villefranche, Observ Oceanol,UMR 7093, 181 Chemin Lazaret, F-06230 Villefranche Sur Mer, France.
3 : CNRS, Lab Aerol, 14 Ave Edouard Belin, F-31400 Toulouse, France.
4 : Univ Paul Sabatier, 14 Ave Edouard Belin, F-31400 Toulouse, France.
Source Continental Shelf Research (0278-4343) (Pergamon-elsevier Science Ltd), 2017-07 , Vol. 144 , P. 98-111
DOI 10.1016/j.csr.2017.06.024
WOS© Times Cited 18
Keyword(s) River plume metrics, Sediment dynamics, MERIS, Ocean color data, Suspended particulate matter, Gulf of Lions
Abstract

In coastal environments, river plumes are major transport mechanisms for particulate matter, nutriments and pollutants. Ocean colour satellite imagery is a valuable tool to explore river turbid plume characteristics, providing observations at high temporal and spatial resolutions of suspended particulate matter (SPM) concentration over a long time period, covering a wide range of hydro-meteorological conditions. We propose here to use the MERIS-FR (300 m) Ocean Colour archive (2002–2012) in order to investigate Rhône River turbid plume patterns generated by the two main forcings acting on the north-eastern part of the Gulf of Lions (France): wind and river freshwater discharge. Results are exposed considering plume metrics (area of extension, south-east-westernmost points, shape, centroid, SPM concentrations) extracted from satellite data using an automated image-processing tool. Rhône River turbid plume SPM concentrations and area of extension are shown to be mainly driven by the river outflow while wind direction acts on its shape and orientation. This paper also presents the region of influence of the Rhône River turbid plume over monthly and annual periods, and highlights its interannual variability.

Full Text
File Pages Size Access
Author's final draft 35 2 MB Open access
14 2 MB Access on demand
Top of the page

How to cite 

Gangloff Aurelien, Verney Romaric, Doxaran David, Ody Anouck, Estournel Claude (2017). Investigating Rhône River plume (Gulf of Lions, France) dynamics using metrics analysis from the MERIS 300m Ocean Color archive (2002 − 2012). Continental Shelf Research, 144, 98-111. Publisher's official version : https://doi.org/10.1016/j.csr.2017.06.024 , Open Access version : https://archimer.ifremer.fr/doc/00391/50258/