A modelling approach for estimating the frequency of sea level extremes and the impact of climate change in southeast Australia

2009 ◽  
Vol 51 (1) ◽  
pp. 115-137 ◽  
Author(s):  
K. L. McInnes ◽  
I. Macadam ◽  
G. D. Hubbert ◽  
J. G. O’Grady
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Impact Of Climate Change ◽  
Southeast Australia ◽  
The Impact ◽  
Modelling Approach

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 Modelling the Impact of Climate Change on Coastal Flooding: Implications for Coastal Structures Design

2021 ◽  
Vol 9 (9) ◽  
pp. 1008 ◽  
Author(s):  
Achilleas Samaras ◽  
Theophanis Karambas
Keyword(s):  
Climate Change ◽  
Wave Propagation ◽  
Large Scale ◽  
Coastal Flooding ◽  
Propagation Model ◽  
Coastal Protection ◽  
Impact Of Climate Change ◽  
The Impact ◽  
Wave Propagation Model ◽  
Modelling Approach

In the present work, the impact of climate change on coastal flooding is investigated through a set of interoperable models developed by the authors, following a modular modelling approach and adapting the modelling sequence to two separate objectives with respect to inundation over large-scale areas and coastal protection structures’ design. The modelling toolbox used includes a large-scale wave propagation model, a storm-induced circulation model, and an advanced nearshore wave propagation model based on the higher order Boussinesq-type equations, all of which are presented in detail. Model capabilities are validated and applications are made for projected scenarios of climate change-induced wave and storm surge events, simulating coastal flooding over the low-lying areas of a semi-enclosed bay and testing the effects of different structures on a typical sandy beach (both in northern Greece). This work is among the few in relevant literature that incorporate a fully non-linear wave model to a modelling system aimed at representing coastal flooding. Results highlight the capabilities of the presented modelling approach and set the basis for a comprehensive evaluation of the use of advanced modelling tools for the design of coastal protection and adaptation measures against future climatic pressures.

scholarly journals The large-scale impact of climate change to Mississippi flood hazard in New Orleans

2013 ◽  
Vol 6 (2) ◽  
pp. 81-87 ◽  
Author(s):  
T. L. A. Driessen ◽  
M. van Ledden
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
New Orleans ◽  
Sea Level ◽  
Mississippi River ◽  
Flood Hazard ◽  
Water Levels ◽  
Impact Of Climate Change ◽  
High Flows ◽  
The Impact

Abstract. The objective of this paper was to describe the impact of climate change on the Mississippi River flood hazard in the New Orleans area. This city has a unique flood risk management challenge, heavily influenced by climate change, since it faces flood hazards from multiple geographical locations (e.g. Lake Pontchartrain and Mississippi River) and multiple sources (hurricane, river, rainfall). Also the low elevation and significant subsidence rate of the Greater New Orleans area poses a high risk and challenges the water management of this urban area. Its vulnerability to flooding became dramatically apparent during Hurricane Katrina in 2005 with huge economic losses and a large number of casualties. A SOBEK Rural 1DFLOW model was set up to simulate the general hydrodynamics. This model included the two important spillways that are operated during high flow conditions. A weighted multi-criteria calibration procedure was performed to calibrate the model for high flows. Validation for floods in 2011 indicated a reasonable performance for high flows and clearly demonstrated the influence of the spillways. 32 different scenarios were defined which included the relatively large sea level rise and the changing discharge regime that is expected due to climate change. The impact of these scenarios on the water levels near New Orleans were analysed by the hydrodynamic model. Results showed that during high flows New Orleans will not be affected by varying discharge regimes, since the presence of the spillways ensures a constant discharge through the city. In contrary, sea level rise is expected to push water levels upwards. The effect of sea level rise will be noticeable even more than 470 km upstream. Climate change impacts necessitate a more frequent use of the spillways and opening strategies that are based on stages.

scholarly journals Impact Assessment of Storm Surge and Climate Change-Enhanced Sea Level Rise on Atoll Nations: A Case Study of the Tarawa Atoll, Kiribati

2021 ◽  
Vol 7 ◽  
Author(s):  
Audrius Sabūnas ◽  
Takuya Miyashita ◽  
Nobuki Fukui ◽  
Tomoya Shimura ◽  
Nobuhito Mori
Keyword(s):  
Climate Change ◽  
Impact Assessment ◽  
Sea Level Rise ◽  
Sea Level ◽  
Storm Surge ◽  
Social Impact ◽  
Small Island ◽  
Impact Of Climate Change ◽  
Exposed Population ◽  
The Impact

The Pacific region consists of numerous Small Island Developing States (SIDS), one of the most vulnerable to flooding caused by compound effects of sea level rise (SLR) and storms. Nevertheless, individual studies regarding the impact assessment for SIDS, such as the low-lying Kiribati, remain scarce. This study assessed the impact of climate change-induced storm surge and SLR compounding effects on Tarawa, the most populous atoll of Kiribati, the largest coral atoll nation. It projected the impact using a combined dynamic surge and SLR model based on the IPCC AR5 RCP scenarios and 1/100 and 1/50 years return period storm events. This approach allows estimating the inundation scope and the consecutive exposed population by the end of the 21st century. The results of this study show that the pace of SLR is pivotal for Tarawa, as the sea level rise alone can claim more than 50% of the territory and pose a threat to over 60% of the population under the most intense greenhouse gas emissions scenario. Furthermore, most coasts on the lagoon side are particularly vulnerable. In contrast, the contribution of extreme events is generally minimal due to low wind speeds and the absence of tropical cyclones (TC). Despite this, it is clear the compound effects are critical and may inescapably bring drastic changes to the atoll nations by the end of this century. The impact assessment in this study draws attention to the social impact of climate change on SIDS, most notably atoll islands, and evaluates their adaptation potential.

scholarly journals Impact of Climate Change on Flood Hazard at Airports on Pacific Islands: A Case Study of Faleolo International Airport, Samoa

2021 ◽  
Vol 16 (3) ◽  
pp. 351-362
Author(s):  
Lianhui Wu ◽  
Kenji Taniguchi ◽  
Yoshimitsu Tajima ◽  
◽  
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Heavy Rainfall ◽  
Flood Hazard ◽  
Drainage System ◽  
Fringing Reef ◽  
Impact Of Climate Change ◽  
International Airport ◽  
The Impact

Climate change is believed to have increased the intensity and frequency of heavy rainfall, and also to have caused sea level rises over this century and beyond. There is widespread concern that small-island nations are particularly vulnerable to increasing risk of inland flood due to such climate change. Understanding the impact of climate change on flood hazard is of great importance for these countries for the development of better protection and adaptation strategies. This study conducted a case study focusing on the impact of climate change on flood hazard at Faleolo International Airport (FIA), Samoa. FIA is a typical small islands airport, located on the lowland along the coast fronted by a fringing reef. Annual maximum daily rainfalls for different return periods were first estimated for the present and future climate around FIA. The estimated rainfalls were input as the forcing of a two-dimensional flood inundation model to investigate the flooding behavior and effectiveness of probable drainage systems. Results showed that a part of the runway can be inundated under heavy rainfall. Construction of drainage pipes significantly contributes to reducing the flood hazard level. Sensitivity analysis showed that the astronomical tide level has relatively little influence on the performance of the drainage system, while the combination of sea level rise and the sea level anomaly induced by stormy waves on the fringing reef could have non-negligible impacts on the drainage system. Location of the drainage pipe is also important to effectively mitigate flooding. The time-concentration of torrential rainfall may also significantly impact the overall performance of the drainage system.

scholarly journals Impact of Climate Change on Large Cardamom-Based Livelihoods in Panchthar District, Nepal

2014 ◽  
Vol 13 ◽  
pp. 33-38 ◽  
Author(s):  
Shiba Prasad Rijal
Keyword(s):  
Climate Change ◽  
Soil Erosion ◽  
Sea Level ◽  
Household Income ◽  
Market Value ◽  
Local People ◽  
Cash Crop ◽  
Impact Of Climate Change ◽  
The Impact ◽  
Large Cardamom

The paper aims at analyzing the impact of climate change on large cardamom-based livelihoods in Panchthar district by reviewing literature and compiling perceptions of local people. Large cardamom, a newly introduced high-value cash crop grown in 36 hill and mountain districts in Nepal, is cultivated in all 41 Village Development Committees of Panchthar district concentrating largely in its northern and eastern parts at the elevations of roughly between 500 to 2000 meters above sea level. Though area coverage and production of large cardamom is limited compared to other crops, its contribution on people’s livelihood is significant as it has high market value. Production of large cardamom contributes much on people’s livelihoods as it is the main source of household income and provides seasonal employment to thousands of people from farm to the market. Some local cultural producers have also been using bi-products of large cardamom for production of handicrafts such as baskets, tablemats, bags, and window blinders. Besides, it has numerous indirect implications such as reduction in soil erosion and landslides, and increase in biodiversity and carbon’s tock. In recent years, production of large cardamom has been declining as a result of climate change induced factors. The decline adversely affects people’s livelihoods.DOI: http://dx.doi.org/10.3126/ttp.v13i0.11544The Third PoleVol. 13, 2013page : 33-38

The impact of climate change on sea level rise at Peninsular Malaysia and Sabah-Sarawak

2012 ◽  
Vol 27 (3) ◽  
pp. 367-377 ◽  
Author(s):  
Ali Ercan ◽  
Mohd Fauzi Bin Mohamad ◽  
M. Levent Kavvas
Keyword(s):  
Climate Change ◽  
Sea Level Rise ◽  
Sea Level ◽  
Peninsular Malaysia ◽  
Impact Of Climate Change ◽  
The Impact
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