Impact of sea level rise and over-pumping on seawater intrusion in coastal aquifers

2011 ◽  
Vol 2 (1) ◽  
pp. 19-28 ◽  
Author(s):  
H. F. Abd-Elhamid ◽  
A. A. Javadi
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Transition Zone ◽  
Seawater Intrusion ◽  
Coastal Aquifers ◽  
Element Model ◽  
Combined Effects ◽  
Sea Levels ◽  
The Individual

Climate change, sea level rise, over-pumping and saltwater intrusion present some of the future challenges of water resources management in coastal areas. Over-abstraction is considered one of the main causes of seawater intrusion and the rise in sea levels accelerates the intrusion. With the combined impact of sea level rise and over-pumping the problem becomes exacerbated and requires urgent solutions. Previous studies have mainly focused on the study of impact of sea level rise or over-abstraction on seawater intrusion separately and their combined effects have not been studied in the literature. This paper presents application of a coupled transient density-dependent finite element model to simulate seawater intrusion in coastal aquifers and investigates the individual and combined effects of likely sea level rise and over-pumping on seawater intrusion. Three scenarios are considered: rise in sea levels due to climate change, decline in groundwater table due to over-pumping and combination of sea level rise and over-pumping. The results show that, in the case study considered in this paper, the rise in the sea level moved the transition zone inland by about 5%. However, the combination of sea level rise and over-pumping resulted in further inland movement of the transition zone (about 8%). The amount of intrusion greatly depends on the depth, size and properties of the aquifer. While the intrusion is a few metres in a small aquifer, it could be several kilometres in a large aquifer.

Impact of over-pumping and sea level rise on seawater intrusion in Gaza aquifer (Palestine)

2015 ◽  
Vol 6 (4) ◽  
pp. 891-902 ◽  
Author(s):  
H. F. Abd-Elhamid ◽  
A. A. Javadi ◽  
K. M. Qahman
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Sea Level Rise ◽  
Sea Level ◽  
Transition Zone ◽  
Seawater Intrusion ◽  
Element Model ◽  
Piezometric Head ◽  
Speed Up ◽  
And Sea Level

Seawater intrusion is considered as one of the main processes that degrade water quality by raising salinity to levels exceeding acceptable drinking water standards. Over-abstraction is the main cause of seawater intrusion. Moreover, climate change and sea level rise speed up seawater intrusion. This paper presents the development of a coupled transient finite element model for simulation of fluid flow and solute transport in soils and its application to study seawater intrusion in Gaza aquifer. The effects of likely sea level rise due to climate change and over-pumping on seawater intrusion in Gaza aquifer are studied using three scenarios: rise in sea level due to climate change; decrease in piezometric head on the land side due to over-pumping; and a combination of sea level rise and over-pumping. The results show that a rise of 1 m in sea level has a significant effect on the position of the transition zone and can result in a further 0.5 km seawater intrusion in Gaza aquifer. However, the combination of sea level rise and over-pumping results in movement of the transition zone further inland (nearly 1.0 km). The results show that Gaza aquifer is subjected to severe seawater intrusion from the Mediterranean Sea and there is an urgent need to protect the aquifer from seawater intrusion.

scholarly journals Economic damages from Hurricane Sandy attributable to sea level rise caused by anthropogenic climate change

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Benjamin H. Strauss ◽  
Philip M. Orton ◽  
Klaus Bittermann ◽  
Maya K. Buchanan ◽  
Daniel M. Gilford ◽  
...  
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
East Coast ◽  
The United States ◽  
Hurricane Sandy ◽  
Water Levels ◽  
Anthropogenic Climate Change ◽  
Economic Damage ◽  
Sea Levels

AbstractIn 2012, Hurricane Sandy hit the East Coast of the United States, creating widespread coastal flooding and over $60 billion in reported economic damage. The potential influence of climate change on the storm itself has been debated, but sea level rise driven by anthropogenic climate change more clearly contributed to damages. To quantify this effect, here we simulate water levels and damage both as they occurred and as they would have occurred across a range of lower sea levels corresponding to different estimates of attributable sea level rise. We find that approximately $8.1B ($4.7B–$14.0B, 5th–95th percentiles) of Sandy’s damages are attributable to climate-mediated anthropogenic sea level rise, as is extension of the flood area to affect 71 (40–131) thousand additional people. The same general approach demonstrated here may be applied to impact assessments for other past and future coastal storms.

The Impact of Climate Change on States

2021 ◽  
Vol 23 (2-3) ◽  
pp. 115-132
Author(s):  
Łukasz Kułaga
Keyword(s):  
Climate Change ◽  
International Law ◽  
Sea Level Rise ◽  
Sea Level ◽  
The State ◽  
Fundamental Change ◽  
Sea Levels ◽  
Impact Of Climate Change ◽  
Potential Impact ◽  
The Impact

Abstract The increase in sea levels, as a result of climate change in territorial aspect will have a potential impact on two major issues – maritime zones and land territory. The latter goes into the heart of the theory of the state in international law as it requires us to confront the problem of complete and permanent disappearance of a State territory. When studying these processes, one should take into account the fundamental lack of appropriate precedents and analogies in international law, especially in the context of the extinction of the state, which could be used for guidance in this respect. The article analyses sea level rise impact on baselines and agreed maritime boundaries (in particular taking into account fundamental change of circumstances rule). Furthermore, the issue of submergence of the entire territory of a State is discussed taking into account the presumption of statehood, past examples of extinction of states and the importance of recognition in this respect.

scholarly journals Socioeconomic and environmental predictors of estuarine shoreline hard armoring

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Nicole E. Peterson ◽  
Craig E. Landry ◽  
Clark R. Alexander ◽  
Kevin Samples ◽  
Brian P. Bledsoe
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Economic Consequences ◽  
Coastal Hazards ◽  
Environmental Predictors ◽  
Sea Levels ◽  
Shoreline Armoring ◽  
Rising Sea Levels ◽  
Estuarine Shoreline ◽  
The Individual

Abstract Rising sea levels and growing coastal populations are intensifying interactions at the land-sea interface. To stabilize upland and protect human developments from coastal hazards, landowners commonly emplace hard armoring structures, such as bulkheads and revetments, along estuarine shorelines. The ecological and economic consequences of shoreline armoring have garnered significant attention; however, few studies have examined the extent of hard armoring or identified drivers of hard armoring patterns at the individual landowner level across large geographical areas. This study addresses this knowledge gap by using a fine-scale census of hard armoring along the entire Georgia U.S. estuarine coastline. We develop a parsimonious statistical model that accurately predicts the probability of armoring emplacement at the parcel level based on a set of environmental and socioeconomic variables. Several interacting influences contribute to patterns of shoreline armoring; in particular, shoreline slope and the presence of armoring on a neighboring parcel are strong predictors of armoring. The model also suggests that continued sea level rise and coastal population growth could trigger future increases in armoring, emphasizing the importance of considering dynamic patterns of armoring when evaluating the potential effects of sea level rise. For example, evolving distributions of armoring should be considered in predictions of future salt marsh migration. The modeling approach developed in this study is adaptable to assessing patterns of hard armoring in other regions. With improved understanding of hard armoring distributions, sea level rise response plans can be fully informed to design more efficient scenarios for both urban development and coastal ecosystems.

scholarly journals The Impact of Sea-Level Rise on Urban Properties in Tampa Due to Climate Change

Water ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 13
Author(s):  
Weiwei Xie ◽  
Bo Tang ◽  
Qingmin Meng
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Urban Planning ◽  
Sea Level Rise ◽  
Sea Level ◽  
Local Governments ◽  
Spatial Information ◽  
Altimeter Data ◽  
Sea Levels ◽  
The Impact

Fast urbanization produces a large and growing population in coastal areas. However, the increasing rise in sea levels, one of the most impacts of global warming, makes coastal communities much more vulnerable to flooding than before. While most existing work focuses on understanding the large-scale impacts of sea-level rise, this paper investigates parcel-level property impacts, using a specific coastal city, Tampa, Florida, USA, as an empirical study. This research adopts a spatial-temporal analysis method to identify locations of flooded properties and their costs over a future period. A corrected sea-level rise model based on satellite altimeter data is first used to predict future global mean sea levels. Based on high-resolution LiDAR digital elevation data and property maps, properties to be flooded are identified to evaluate property damage cost. This empirical analysis provides deep understanding of potential flooding risks for individual properties with detailed spatial information, including residential, commercial, industrial, agriculture, and governmental buildings, at a fine spatial scale under three different levels of global warming. The flooded property maps not only help residents to choose location of their properties, but also enable local governments to prevent potential sea-level rising risks for better urban planning. Both spatial and temporal analyses can be easily applied by researchers or governments to other coastal cities for sea-level rise- and climate change-related urban planning and management.

scholarly journals Rising Sea Levels Bring a Tidal Change to Tourism

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Richard Sima
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Sea Levels ◽  
Rising Sea Levels ◽  
Tidal Change

A series of industry posters reimagines iconic locales in light of sea level rise and issues a call for action against climate change.

Sea-level rise impacts on seawater intrusion in coastal aquifers: Review and integration

2016 ◽  
Vol 535 ◽  
pp. 235-255 ◽  
Author(s):  
Hamed Ketabchi ◽  
Davood Mahmoodzadeh ◽  
Behzad Ataie-Ashtiani ◽  
Craig T. Simmons
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Seawater Intrusion ◽  
Coastal Aquifers ◽  
Sea Level Rise Impacts

scholarly journals Modelling the increased frequency of extreme sea levels in the Ganges–Brahmaputra–Meghna delta due to sea level rise and other effects of climate change

2015 ◽  
Vol 17 (7) ◽  
pp. 1311-1322 ◽  
Author(s):  
S. Kay ◽  
J. Caesar ◽  
J. Wolf ◽  
L. Bricheno ◽  
R. J. Nicholls ◽  
...  
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
21St Century ◽  
Bay Of Bengal ◽  
Hydrodynamic Model ◽  
Sea Levels ◽  
Extreme Sea Levels ◽  
The Ganges

A hydrodynamic model of the Bay of Bengal has been used to explore increasing frequency of extreme sea levels in the Ganges–Brahmaputra–Meghna delta over the 21st century.

Sign in / Sign up

Export Citation Format

Share Document