To the Effectiveness of Coastal and Flood Protection Structures Under Terms of Changing Climate Conditions

Froehle, P.

doi:10.9753/icce.v33.management.60

Cited by 3 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although major local towns are located in inner areas relatively protected from RSLR, rice farming, the major local socio-economic activity will be greatly impacted, particularly at salinities of 3-3.6 psu (Genua-Olmedo et al, 2016). Protection measures such as dykes (already implemented in part) and flood protection dunes (Froehle, 2012), as well as other potential palliative measures such as reintroduction of riverine sediments (Ibáñez et al, 1997; are recommended, so inundation and, to a lesser extent habitat shifts, will probably have a smaller influence. In more extreme scenarios, unproductive rice fields could be transformed into wetlands for the implementation of alternative activities that could be more economically sustainable given the also important interest of the Ebro Delta as a wildlife refuge in the context of the Mediterranean region (e.g., bird watching).…”

Section: Discussionmentioning

confidence: 99%

“…Hence, the present existence of soft (sand) dykes around coastal lagoon areas and along the inner shoreline of the bays constitutes a limitation in the predictive capacity of the model, which may overestimate patterns of wetland loss by inundation. Some flood protection in both scenarios might have been achieved thanks to the availability of ocean beaches with welldeveloped dunes (Froehle, 2012), but they declined significantly under the most extreme scenarios thus favoring the increase of estuarine open waters.…”

Section: Habitat Changes From Initial Conditionsmentioning

confidence: 99%

See 1 more Smart Citation

Pristine vs. human-altered Ebro Delta habitats display contrasting resilience to RSLR

Prado¹,

Alcaraz²,

Benito

et al. 2019

Science of The Total Environment

View full text Add to dashboard Cite

River deltas are ecologically and economically valuable coastal ecosystems but low elevations make them extremely sensitive to relative sea level rise (RSLR), i.e. the combined effects of sea level rise and subsidence. Most deltas are subjected to extensive human exploitation, which has altered the habitat composition, connectivity and geomorphology of deltaic landscapes. In the Ebro Delta, extensive wetland reclamation for rice cultivation over the last 150 years has resulted in the loss of 65% of the natural habitats. Here, we compare the dynamics of habitat shifts under two departure conditions (a simulated pristine delta vs. the human-altered delta) using the Sea Level Affecting Marshes Model (SLAMM) under the 4.5 and 8.5 RCP (Representative Concentration Pathways) scenarios for evaluating their resilience to RSLR (i.e. resistance to inundation). Results showed lower inundation rates in the human delta (10 to 22% by the end of the century, depending on RCP conditions), mostly due to 4.5 times lower initial extension of coastal lagoons compared to the pristine delta. Yet, inundation rates from 15 to 30% of the total surface represent the worst possible human scenario, assuming no flooding protection measures. Besides, accretion rates within rice fields are disregarded since this option is not available in SLAMM for developed dry land. In the human delta, rice fields were largely shifted to other wetland habitats and experienced the highest reductions, mostly because of their larger surface. In contrast, in the pristine delta most of the habitats showed significant decreases by 2100 (2 to 32% of the surface). Coastal infrastructures (dykes or flood protection dunes) and reintroduction of riverine sediments through irrigation channels are proposed to minimize impacts of RSLR. In the worst RCP scenarios, promoting preservation of natural habitats by transforming unproductive rice fields into wetlands could be the most sustainable option.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Habitat Changes From Initial Conditionsmentioning

confidence: 99%

Pristine vs. human-altered Ebro Delta habitats display contrasting resilience to RSLR

Prado¹,

Alcaraz²,

Benito

et al. 2019

Science of The Total Environment

View full text Add to dashboard Cite

show abstract

Wasserhaushalt im Klimawandel

Kunstmann,

Fröhle,

Hattermann

et al. 2023

Klimawandel in Deutschland

View full text Add to dashboard Cite

ZusammenfassungWasser ist für den Menschen und seine Umwelt von zentraler Bedeutung. Seine jahreszeitliche Verfügbarkeit prägt Ökosysteme wie auch Kulturen und Gesellschaften. Die Herausforderung, zu viel, zu wenig oder zu schmutziges Wasser zu bewältigen, begleitet den Menschen seit Jahrtausenden. Mit der globalen Klimaänderung verändert sich auch der Wasserkreislauf, insbesondere die Quelle erneuerbaren Süßwassers, nämlich der Niederschlag. Grund ist die mit der globalen Erwärmung einhergehende Intensivierung des Wasserkreislaufs, die zu vergrößerten atmosphärischen Energieumsätzen führt. Aufgrund der Wechselwirkung von Atmosphärendynamik und Landoberflächen sind so in manchen Regionen heftigere Niederschläge, in anderen Regionen aber entgegengesetzte Extreme, wie längere und häufigere Trockenperioden und Dürren, möglich. Die Abschätzung der zukünftigen räumlichen und zeitlichen Verteilung der terrestrischen Wasserverfügbarkeit gehört zu den zentralen wissenschaftlichen Herausforderungen des 21. Jahrhunderts.

show abstract