NDLI: Identification, Characterization and Analysis of the Douro River Plume From MERIS Data

Content Provider	IEEE Xplore Digital Library
Author	Goncalves, H. Teodoro, A.C. Almeida, H.
Copyright Year	2008
Abstract	Estuarine outflow plumes are important coastal processes whose variable nature can make it difficult to monitor using traditional ship-based surveys. Satellite ocean color observations of the optical properties of coastal surface waters can be used to distinguish plume water from ambient water masses, particularly based on increased concentrations of Total Suspended Matter (TSM) in the plumes. In this work, 71 MERIS scenes were considered, covering the region surrounding the Douro river mouth. An automatic procedure for the identification of the Douro river plume has been proposed based on the thresholding of the MERIS data through an automatic search for the optimum value of the threshold parameter TSM_cutoff. A manual identification of the river plumes was manually performed by two operators, in order to evaluate the performance of the automatic method. A set of attributes for the characterization of the river plume in terms of shape and TSM concentration was also proposed. A high and significant correlation of 0.719 was achieved between the river plume size and river discharges, which increases up to 0.838 excluding two of the images. Moreover, it was found a significant correlation between the river discharges and the orientation of the river plume, which is associated with important practical considerations in terms of sedimentary balance. Significant advances on the spatial-temporal analysis of the Douro river plume from MERIS data has been achieved in this work. Moreover, the proposed methodology may also be applied to other study areas and sources of remote sensing data.
Starting Page	1553
Ending Page	1563
Page Count	11
File Size	3138239
File Format	PDF
ISSN	19391404
Volume Number	5
Issue Number	5
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rivers Correlation Sea measurements Water Oceans Shape Discharges TSM concentration Douro River image segmentation MERIS river plumes sedimentary balance
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Computers in Earth Sciences

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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