Deposits of Tide-Influenced River Deltas

2005 ◽  
pp. 87-129 ◽  
Author(s):  
BRIAN J. WILLIS
Keyword(s):  
River Deltas

scholarly journals What Role do Hurricanes Play in Sediment Delivery to Subsiding River Deltas?

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
James E. Smith ◽  
Samuel J. Bentley ◽  
Gregg A. Snedden ◽  
Crawford White
Keyword(s):  
Sediment Delivery ◽  
River Deltas

scholarly journals Pharmacological and Ethnomedicinal Overview of Heritiera fomes: Future Prospects

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Imran Mahmud ◽  
Md Khirul Islam ◽  
Sanjib Saha ◽  
Apurba Kumar Barman ◽  
Md Mustafizur Rahman ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Chemical Constituents ◽  
Folk Medicine ◽  
Anticancer Activities ◽  
Mangrove Plant ◽  
River Deltas ◽  
Traditional Health ◽  
Heritiera Fomes ◽  
Health Practitioners ◽  
Important Medicinal Plant

Mangrove plants are specialized woody plants growing in the swamps of tidal-coastal areas and river deltas of tropical and subtropical parts of the world. They have been utilized for medicinal and other purposes by the coastal people over the years. Heritiera fomes Buch. Ham. (family: Sterculiaceae) commonly known as Sundari (Bengali) is a preeminent mangrove plant occurring in the Sundarbans forest located in the southern part of Bangladesh and adjoining West Bengal province of India. The plant has applications in traditional folk medicine as evidenced by its extensive use for treating diabetes, hepatic disorders, gastrointestinal disorders, goiter, and skin diseases by the local people and traditional health practitioners. A number of investigations indicated that the plant possesses significant antioxidant, antinociceptive, antihyperglycemic, antimicrobial, and anticancer activities. Phytochemical analyses have revealed the presence of important chemical constituents like saponins, alkaloids, glycosides, tannins, steroids, flavonoids, gums, phytosterols, and reducing sugars. The present study is aimed at compiling information on phytochemical, biological, pharmacological, and ethnobotanical properties of this important medicinal plant, with a view to critically assess the legitimacy of the use of this plant in the aforementioned disorders as well as providing directions for further research.

scholarly journals Recovery and Restoration of Biloxi Marsh in the Mississippi River Delta

Water ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3179
Author(s):  
G. Paul Kemp ◽  
Elizabeth C. McDade ◽  
John W. Day ◽  
Robert R. Lane ◽  
Nancye H. Dawers ◽  
...  
Keyword(s):  
Mississippi River ◽  
The State ◽  
River Delta ◽  
Regional Studies ◽  
Mississippi River Delta ◽  
Industry Data ◽  
River Deltas ◽  
2D And 3D ◽  
Restoration Measures ◽  
Different Levels

The State of Louisiana is leading an integrated wetland restoration and flood risk reduction program in the Mississippi River Delta. East of New Orleans, Biloxi Marsh, a ~1700 km2 peninsula jutting 60 km north toward the State of Mississippi is one of few Delta wetland tracts well positioned to dissipate hurricane surge and waves threatening the city’s newly rebuilt hurricane flood defenses. Both its location on the eastern margin of the Delta, and its genesis as the geologic core of the shallow water St. Bernard/Terre aux Boeuf sub-delta, which was the primary Mississippi outlet for almost 2000 years, make Biloxi Marsh attractive for restoration, now that the Mississippi River Gulf Outlet deep-draft ship channel has been dammed, and 50 years of impacts from construction and operation have abated. Now, the cascade of ecosystem damage it caused can be reversed or offset by restoration projects that leverage natural recovery and increased access to suspended sediment from the Mississippi River. Biloxi Marsh is (1) geologically stable, (2) benefiting from increased input of river sediment, and (3) could be restored to sustainability earlier and for a longer period than most of the rest of the submerging Mississippi Delta. The focus of this review is on the Biloxi Marsh, but it also provides a template for regional studies, including analysis of 2D and 3D seismic and other energy industry data to explore why existing marshes that look similar on the ground or from the air may respond to restoration measures with different levels of success. Properties of inherent durability and resilience can be exploited in restoration project selection, sequencing and expenditure. Issues encountered and investigative methods applied in the Biloxi Marsh are likely to resonate across initiatives now contemplated to sustain valuable river deltas worldwide.

scholarly journals A global open-source database of flood-protection levees on river deltas (openDELvE)

2021 ◽  
Author(s):  
Joey O'Dell ◽  
Jaap H. Nienhuis ◽  
Jana R. Cox ◽  
Douglas A. Edmonds ◽  
Paolo Scussolini
Keyword(s):  
Open Source ◽  
Flood Hazard ◽  
Construction Material ◽  
Scientific Data ◽  
River Delta ◽  
Flood Protection ◽  
Hydrologic Models ◽  
Aggregated Data ◽  
River Deltas ◽  
National Databases

Abstract. Flood-protection levees have been built along rivers and coastlines globally. Current datasets, however, are generally confined to territorial boundaries (national datasets) and are not always easily accessible, posing limitations for hydrologic models and assessments of flood hazard. Here we present our work to develop a single, open-source global river delta levee data environment (openDELvE) which aims to bridge a data deficiency by collecting and standardising global flood-protection levee data for river deltas. In openDELvE we have aggregated data from national databases as well as data stored in reports, maps, and satellite imagery. The database identifies the river delta land areas that the levees have been designed to protect, and where additional data is available, we record the extent and design specifications of the levees themselves (e.g., levee height, crest width, construction material) in a harmonised format. openDELvE currently contains 5,089 km of levees on deltas, and 44,733.505 km2 of leveed area in 1,601 polygons. For the 152 deltas included in openDELvE, on average 19 % of their habitable land area is confined by verifiable flood-protection levees. Globally, we estimate that between 5 % and 54 % of all delta land is confined by flood-protection levees. The data is aligned to the recent standards of Findability, Accessibility, Interoperability and Reuse of scientific data (FAIR) and is open-source. openDELvE is made public on an interactive platform (www.opendelve.eu), which includes a community-driven revision tool to encourage inclusion of new levee data and continuous improvement and refinement of open-source levee data.

scholarly journals An advanced method for flood risk analysis in river deltas, applied to societal flood fatality risks in the Netherlands

2014 ◽  
Vol 2 (2) ◽  
pp. 1637-1670 ◽  
Author(s):  
K. M. de Bruijn ◽  
F. L. M. Diermanse ◽  
J. V. L. Beckers
Keyword(s):  
Risk Analysis ◽  
Flood Risk ◽  
Hydrodynamic Interaction ◽  
Storm Surges ◽  
Water Levels ◽  
Analysis Framework ◽  
Flood Risks ◽  
River Deltas ◽  
River Flood ◽  
Flood Risk Analysis

Abstract. This paper discusses the new method developed to analyse flood risks in river deltas. Risk analysis of river deltas is complex, because both storm surges and river discharges may cause flooding and since the effect of upstream breaches on downstream water levels and flood risks must be taken into account. A Monte Carlo based flood risk analysis framework for policy making was developed, which considers both storm surges and river flood waves and includes hydrodynamic interaction effects on flood risks. It was applied to analyse societal flood fatality risks (the probability of events with more than N fatalities) in the Rhine–Meuse delta.

scholarly journals Location Security and Environmental-Induced Displacement: a Case Study of the Riverine Islands in Bangladesh

Refuge ◽  
1969 ◽  
Vol 29 (2) ◽  
pp. 63-71
Author(s):  
Brad K. Blitz
Keyword(s):  
Environmental Factors ◽  
Coping Strategies ◽  
Sustainable Livelihoods ◽  
Human Security ◽  
Specific Region ◽  
Environmental Pressures ◽  
River Deltas ◽  
Sustainable Livelihoods Framework ◽  
Livelihoods Framework

This article introduces the concept of ‘location security’ to describe the specific relationship between place, environ- mental and human security. It argues that ‘location security’ is determined by a location’s resilience to risk, understood in terms of the degree to which a specific region is protected by virtue of geographical endowments and has sufficient infrastructure to withstand and recover from the effects of environmental hazards and ensure that rights are protected. To illustrate the concept of location security, this article uses the sustainable livelihoods framework to explore actual and anticipated environmental pressures that affect the river deltas of Bangladesh, and examines the adaptation responses developed by the inhabitants of the riverine islands. A central finding of this article is that flexible migration and localised coping strategies based on acute knowledge of their local ecological and geological systems, enables the char dwellers to reduce their vulnerability. In this setting, human and environmental factors when harnessed may enhance agency to mitigate hazards.    

Classification, Architecture, and Evolution of Large-River Deltas

Large Rivers ◽  
2008 ◽  
pp. 75-96 ◽  
Author(s):  
Kazuaki Hori ◽  
Yoshiki Saito
Keyword(s):  
Large River ◽  
River Deltas
Sign in / Sign up

Export Citation Format

Share Document