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Sensing Images for Assessing the Minimum Ecological Flux by Automatically Extracting River Surface Width
2020
Remote Sensing
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images to automatically extract the water surface width. ...
The river surface width at this location increased from January 2015 to November 2019, and all widths exceeded the minimum river surface water width for the month. ...
surface width extracted by remote sensing was greater than the minimum river water surface width, meeting the minimum ecological flux guarantee. ...
doi:10.3390/rs12182899
fatcat:6ksl6gzyzjhbblbaxqnrobnnuq
Improving the quantification of land cover pressure on stream ecological status at the riparian scale using High Spatial Resolution Imagery
2011
Physics and Chemistry of the Earth
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The HSRI-derived map was obtained using a supervised object-based classification of multi-source remotely-sensed images (SPOT 5 XS-10 m and aerial photography-0.5 m) and presents an overall accuracy of ...
The next challenge will consist in developing an operational methodology using HSRI for large-scale mapping of river corridor land cover" for spatial indicator computation and for the development of related ...
Acquisition of remote sensing data benefited from the support of the ISIS programme of the French national space agency CNES (Spot5 images), while IGN airborne orthophotos were made available by the French ...
doi:10.1016/j.pce.2010.07.012
fatcat:cm3t4vpfavgbzncrhtdkf7g6du
Detection of Hydromorphologic Characteristics of Indus River Estuary, Pakistan, Using Satellite and Field Data
2017
Arabian Journal for Science and Engineering
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Qualitative (visual) and quantitative (analytical) analysis was undertaken, and accuracy of each method as well as remotely sensed data was assessed. ...
key ecologic features of the IRE. ...
Moreover, the United States Geological Survey (USGS) and Google Earth are also acknowledged who have voluntarily offered satellite data online for research facilitation. ...
doi:10.1007/s13369-017-2528-9
fatcat:rl6bpy7vqvdkvjjbvvj67cunhi
Mapping urban climate zones and quantifying climate behaviors – An application on Toulouse urban area (France)
2011
Environmental Pollution
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It has been possible to determine the membership of sample areas to an UCZ using landscape descriptors automatically computed with GIS and remote sensed data. ...
The objective of this paper is to demonstrate that the UCZ classification, integrated in the World Meteorological Organization guidelines, first can be automatically determined for sample areas and second ...
The air temperature refers to an ambient temperature, resulting from the mixing of the heat fluxes emitted by the surface, the human activities and the background temperature of the surrounding landscape ...
doi:10.1016/j.envpol.2010.12.027
pmid:21269746
fatcat:vxwouijqyfhzlp2snd3jejngym
Remote monitoring of tamarisk defoliation and evapotranspiration following saltcedar leaf beetle attack
2009
Remote Sensing of Environment
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This study examines the potential for using higher spatial resolution Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data and lower spatial resolution Moderate Resolution Imaging ...
Spectroradiometer (MODIS) data for monitoring defoliation caused by Diorhabda and subsequent changes in evapotranspiration (ET). ...
Acknowledgements The authors would like to thank the University of Oregon, Solar Radiation Monitoring Lab Director, Frank Vignola (http://solardat.uoregon.edu/) for providing assistance with the Moab temperature ...
doi:10.1016/j.rse.2008.05.022
fatcat:56fzfzrj6bduph7xa5gscxiwoi
Monitoring the Coastal Environment Using Remote Sensing and GIS Techniques
[chapter]
2016
Applied Studies of Coastal and Marine Environments
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Remote sensing techniques have proven to be powerful tools for the monitoring of the Earth's surface and atmosphere on a global, regional, and even local scale, by providing important coverage, mapping ...
This chapter introduced the methods for monitoring the coastal environment using remote sensing and GIS techniques. ...
assessment, and ecological environment evaluations. ...
doi:10.5772/62242
fatcat:rc3cvryfffhhhmxlrpzfuhopfq
Characterizing geomorphological change to support sustainable river restoration and management
2014
WIREs Water
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Resultant alterations in fluvial forms and processes have negatively impacted river ecology via the loss of physical habitat, disruption to the longitudinal continuity of the river, and lateral disconnection ...
Process rates can be assessed, the historical condition of rivers can be determined, the trajectories of past changes can be reconstructed, and the role of specific human interventions in these geomorphological ...
The review is a product of research conducted on the characterization of river hydromorphology within the REFORM collaborative project funded by the European Union Seventh Framework Programme under grant ...
doi:10.1002/wat2.1037
fatcat:xhmzy3iazve5pdf77ufj2ufmlm
River ice flux and water velocities along a 600 km-long reach of Lena River, Siberia, from satellite stereo
2013
Hydrology and Earth System Sciences
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the open-water period and to strong consequences for river infrastructure and ecology. ...
</strong> Knowledge of water-surface velocities in rivers is useful for understanding a range of river processes. ...
Acquisition of the ASTER images was guided by NASA JPL, through the ASTER science team and the Global Land Ice Measurements from Space (GLIMS) initiative. For the research leading to these results A. ...
doi:10.5194/hess-17-4671-2013
fatcat:lk5mn5vubvd55n565jhhqjp42m
River ice flux and water velocities along a 600 km long reach of Lena River, Siberia, from satellite stereo
2013
Hydrology and Earth System Sciences Discussions
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the open-water period and to strong consequences for river infrastructure and ecology. ...
Knowledge of water-surface velocities in rivers is useful for understanding a range of river processes. ...
Acquisition of the ASTER images was guided by NASA JPL, through the ASTER science team and the Global Land Ice Measurements from Space (GLIMS) initiative. For the research leading to these results A. ...
doi:10.5194/hessd-10-9967-2013
fatcat:viza6b224fe65iuud4pmdtjn24
Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for model calibration and validation in a large ungauged catchment
2010
Hydrology and Earth System Sciences Discussions
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measurements onboard the Envisat satellite; (ii) radar altimetry measurements by Envisat providing river stages in the tributaries of the Okavango catchment, down to a minimum river width of about one ...
The availability of data is a major challenge for hydrological modelling in large parts of the world. Remote sensing data can be exploited to improve models of ungauged or poorly gauged catchments. ...
We acknowledge the Department of Water Affairs of the government of Namibia and the Department of Water Affairs of the government of Botswana for providing river stage and discharge data. ...
doi:10.5194/hessd-7-9123-2010
fatcat:4umc6hc4wjep7mcntorq5y4iqu
Combining satellite radar altimetry, SAR surface soil moisture and GRACE total storage changes for hydrological model calibration in a large poorly gauged catchment
2011
Hydrology and Earth System Sciences
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We acknowledge the Department of Water Affairs of the government of Namibia and the Department of Water Affairs of the government of Botswana for providing river stage and discharge data. ...
This work was funded by the Swiss National Science Foundation (PBEZP2-127760) and hosted at the Department of Environmental Engineering, Technical University of Denmark. Edited by: N. Romano ...
The accuracy of the remotely sensed levels can thus be assessed. The original RLA data contain all altimeter measurements in a corridor of 2 km width centred on the river. ...
doi:10.5194/hess-15-1729-2011
fatcat:4q6456xh2bcivochjr4baejhte
Applications of Google Earth Engine in fluvial geomorphology for detecting river channel change
2020
WIREs Water
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We share a demonstration workflow to extract active river channel masks from a section of the Cagayan River (Luzon, Philippines) then quantify centerline migration rates from multitemporal data. ...
By enabling fluvial geomorphologists to take their algorithms to petabytes worth of data, GEE is transformative in enabling deterministic science at scales defined by the user and determined by the phenomena ...
CONFLICT OF INTEREST The authors have declared no conflicts of interest for this article. ...
doi:10.1002/wat2.1496
fatcat:dqsrb2s3zbhgxfl6aaaafzb4xa
Hydromorphological attributes for all Australian river reaches derived from Landsat dynamic inundation remote sensing
2019
Earth System Science Data
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A parameter <span class="inline-formula"><i>γ</i></span> was proposed to describe the shape of the frequency–width relationship and can be used to classify reaches by the degree to which flow regime tends ...
</strong> Hydromorphological attributes such as flow width, water extent, and gradient play an important role in river hydrological, biogeochemical, and ecological processes and can help to predict river ...
This paper was edited by Loes van Schaik and reviewed by George Allen and one anonymous referee. ...
doi:10.5194/essd-11-1003-2019
fatcat:zyv74vj4tbh7hfsdzk7u7ofx7i
Impacts of Regional Groundwater Flow and River Fluctuation on Floodplain Wetlands in the Middle Reach of the Yellow River
2020
Water
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Wetland areas from 2014 to 2019 were extracted from Landsat 8 remote sensing images, and their correlation with the river runoff was analyzed. ...
The hydrological processes and the interactions between the river and the underlying aquifer were investigated by combining remote sensing, hydraulic monitoring, and numerical modeling. ...
The authors thank the editors and anonymous reviewers for their helpful and insightful comments, which have significantly improved this work. ...
doi:10.3390/w12071922
fatcat:zoz6e5v45radxm3pixwxy7xsse
A Hybrid of Optical Remote Sensing and Hydrological Modeling Improves Water Balance Estimation
2018
Journal of Advances in Modeling Earth Systems
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Finally, we purposefully do not offer prescriptive solutions for Nile management, and rather hope that the methods demonstrated herein can prove useful to river stakeholders in managing their own water ...
Specifically, we first estimate initial discharges from 87 Landsat images and AMHG , and then use these flow estimates to tune the model, all without using gauge data. ...
Water Surface Delineation and River Width Measurement We implemented a highly automated scheme to measure river top widths along the study reaches. ...
doi:10.1002/2017ms000986
fatcat:a3hrpato7vdfnh5aogwbto7yfq
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