elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Monitoring of river contamination derived from acid mine drainage using airborne imaging spectroscopy (HyMap data, South-West Spain)

Buzzi, J. and Riaza, A. and García-Meléndez, E. and Carrère, V. and Holzwarth, Stefanie (2016) Monitoring of river contamination derived from acid mine drainage using airborne imaging spectroscopy (HyMap data, South-West Spain). River Research and Applications, 32, pp. 125-136. Wiley. DOI: 10.1002/rra.2849 ISSN 1535-1459

[img] PDF
883kB

Official URL: http://onlinelibrary.wiley.com/doi/10.1002/rra.2849/

Abstract

Imaging spectroscopy is used in this work as an essential mapping tool to monitor changes in contaminated river sediments. Multidate hyperspectral image data (HyMap) are utilized to identify spatial mineral patterns, to detect temporal changes in mineralogy and to link these changes with geochemical processes and short-term climate characteristics. River sediments contaminated by acid mine drainage are covered by crusts with variably hydrated iron sulphate. The mineralogy of the crusts and the grain size of the underlying fluvial sediments overlap. The spectra used to build up maps from HyMap data are diagnosed mineralogically with archive spectral libraries from pyrite oxidation minerals from well-known sequences of minerals. The maps compiled from hyperspectral imagery display generalized oxidation shown by the coatings over river sediments following warm and dry periods with low water level. After the wet periods, the area covered by oxidized mineralogical phases recedes in favour of hydrated sulphate. The iteration of image processing algorithms and the mineralogical and potential contamination in a geological context are described. Change detection of the mineral crusts on the river sediments by mapping using hyperspectral remote sensing data may thus enable a quantitative and qualitative environmental evaluation by the regulators.

Item URL in elib:https://elib.dlr.de/110398/
Document Type:Article
Title:Monitoring of river contamination derived from acid mine drainage using airborne imaging spectroscopy (HyMap data, South-West Spain)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Buzzi, J.Geological Survey of Spain (IGME)UNSPECIFIED
Riaza, A.Geological Survey of Spain (IGME)UNSPECIFIED
García-Meléndez, E.Universidad de LeonUNSPECIFIED
Carrère, V.Laboratoire de Planétologie et Géodynamique de NantesUNSPECIFIED
Holzwarth, Stefaniestefanie.holzwarth (at) dlr.deUNSPECIFIED
Date:2016
Journal or Publication Title:River Research and Applications
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:32
DOI :10.1002/rra.2849
Page Range:pp. 125-136
Publisher:Wiley
ISSN:1535-1459
Status:Published
Keywords:imaging spectroscopy; hyperspectral remote sensing; river geomorphology; acid mine drainage; climate variability
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Fernerkundung der Landoberfläche (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
Deposited By: Holzwarth, Stefanie
Deposited On:11 Jan 2017 10:37
Last Modified:31 Jul 2019 20:07

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.