Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding

With the increasing availability and diversity of satellite imagery, the multisensor fusion of data can more effectively address the improved monitoring of temporary water bodies. This study supports the attempt to apply well established methods to detect spatial and temporal changes in ephemeral sh...

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Main Authors: Elena Papageorgiou, Michael Foumelis, Antonios Mouratidis
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:GeoHazards
Subjects:
Online Access:https://www.mdpi.com/2624-795X/4/2/12
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author Elena Papageorgiou
Michael Foumelis
Antonios Mouratidis
author_facet Elena Papageorgiou
Michael Foumelis
Antonios Mouratidis
author_sort Elena Papageorgiou
collection DOAJ
description With the increasing availability and diversity of satellite imagery, the multisensor fusion of data can more effectively address the improved monitoring of temporary water bodies. This study supports the attempt to apply well established methods to detect spatial and temporal changes in ephemeral shallow lakes in lowland karst terrain, as well as to improve the understanding concerning the dynamics of water storage and hydrological mechanisms during extreme precipitation events. Based on the joint analysis of Copernicus Sentinel SAR and optical mission data, as well as soil moisture and EO-based rainfall observations over the period of 2015–2020, we demonstrated the control of the karst system on the ephemeral lake appearances in the broader area of Chalkida (Evvia, Greece). A connection between the prolonged and extended water coverage in the ephemeral lakes and flooding in the area is documented. Our EO-supported findings may serve as indicators for flood alerts in future extreme precipitation events, improving responses in cases of emergencies.
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spelling doaj.art-54a6b32e589345339a811c32fea543d82023-11-18T10:36:13ZengMDPI AGGeoHazards2624-795X2023-06-014219721610.3390/geohazards4020012Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related FloodingElena Papageorgiou0Michael Foumelis1Antonios Mouratidis2Department of Physical and Environmental Geography, Aristotle University of Thessaloniki (AUTh), 541 24 Thessaloniki, GreeceDepartment of Physical and Environmental Geography, Aristotle University of Thessaloniki (AUTh), 541 24 Thessaloniki, GreeceDepartment of Physical and Environmental Geography, Aristotle University of Thessaloniki (AUTh), 541 24 Thessaloniki, GreeceWith the increasing availability and diversity of satellite imagery, the multisensor fusion of data can more effectively address the improved monitoring of temporary water bodies. This study supports the attempt to apply well established methods to detect spatial and temporal changes in ephemeral shallow lakes in lowland karst terrain, as well as to improve the understanding concerning the dynamics of water storage and hydrological mechanisms during extreme precipitation events. Based on the joint analysis of Copernicus Sentinel SAR and optical mission data, as well as soil moisture and EO-based rainfall observations over the period of 2015–2020, we demonstrated the control of the karst system on the ephemeral lake appearances in the broader area of Chalkida (Evvia, Greece). A connection between the prolonged and extended water coverage in the ephemeral lakes and flooding in the area is documented. Our EO-supported findings may serve as indicators for flood alerts in future extreme precipitation events, improving responses in cases of emergencies.https://www.mdpi.com/2624-795X/4/2/12EO data fusionephemeral water bodiesCopernicus SentinelSAR backscatteroptical radiometric indicesSMOS
spellingShingle Elena Papageorgiou
Michael Foumelis
Antonios Mouratidis
Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding
GeoHazards
EO data fusion
ephemeral water bodies
Copernicus Sentinel
SAR backscatter
optical radiometric indices
SMOS
title Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding
title_full Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding
title_fullStr Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding
title_full_unstemmed Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding
title_short Earth Observation Data Synergy for the Enhanced Monitoring of Ephemeral Water Bodies to Anticipate Karst-Related Flooding
title_sort earth observation data synergy for the enhanced monitoring of ephemeral water bodies to anticipate karst related flooding
topic EO data fusion
ephemeral water bodies
Copernicus Sentinel
SAR backscatter
optical radiometric indices
SMOS
url https://www.mdpi.com/2624-795X/4/2/12
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AT antoniosmouratidis earthobservationdatasynergyfortheenhancedmonitoringofephemeralwaterbodiestoanticipatekarstrelatedflooding