scholarly journals Tropical Cyclone-Induced Hazards Caused by Storm Surges and Large Waves on the Coast of China

Geosciences ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 131 ◽  
Author(s):  
Zai-Jin You
Keyword(s):  
Large Scale ◽  
Storm Surges ◽  
Chinese Economy ◽  
Coastal Hazards ◽  
Economic Losses ◽  
Sea Levels ◽  
The North ◽  
Coastal Waves ◽  
Storm Wave ◽  
Rising Sea Levels

The mainland coast of China is about 18,000 km long and houses about 70% of China’s largest cities and 50% of its population. For the last few decades, the rapid growth of the Chinese economy has resulted in extensive development of the coastal infrastructure and property, large-scale expansion of coastal ports, excessive reclamation of coastal land, and a significant increase in the coastal population. Previous studies have indicated that tropical cyclones (TCs) have struck the coast of China at a higher frequency and intensity, and TC-induced coastal hazards have resulted in heavy human losses and huge losses to the Chinese coastal economy. In analyzing the long-term and most recent coastal hazard data collected on the coast of China, this study has found that TC-induced storm surges are responsible for 88% of the direct coastal economic losses, while TC-induced large coastal waves have caused heavy loss of human lives, and that the hazard-caused losses are shown to increase spatially from the north to south, peak in the southern coastal sector, and well correlate to storm wave energy flux. The frequency and intensity of coastal hazards on the coast of China are expected to increase in response to future changing TC conditions and rising sea levels. A simple two-parameter conceptual model is also presented for the assessment of coastal inundation and erosion hazards on the coast of China.

scholarly journals Effects of climate change on spatiotemporal patterns of tropical cyclone tracks and their implications for coastal agriculture in Myanmar

2021 ◽  
Author(s):  
Akira Hirano
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Considerable Increase ◽  
Hot Spot ◽  
Coastal Region ◽  
Storm Surges ◽  
Coastal Areas ◽  
Spatiotemporal Patterns ◽  
Sea Levels ◽  
Rising Sea Levels

AbstractImportant aspects for understanding the effects of climate change on tropical cyclones (TCs) are the frequency of TCs and their tracking patterns. Coastal areas are increasingly threatened by rising sea levels and associated storm surges brought on by TCs. Rice production in Myanmar relies strongly on low-lying coastal areas. This study aims to provide insights into the effects of global warming on TCs and the implications for sustainable development in vulnerable coastal areas in Myanmar. Using TC records from the International Best Track Archive for Climate Stewardship dataset during the 30-year period from 1983 to 2012, a hot spot analysis based on Getis-Ord (Gi*) statistics was conducted to identify the spatiotemporal patterns of TC tracks along the coast of Myanmar. The results revealed notable changes in some areas along the central to southern coasts during the study period. These included a considerable increase in TC tracks (p value < 0.01) near the Ayeyarwady Delta coast, otherwise known as “the rice bowl” of the nation. This finding aligns with trends in published studies and reinforced the observed trends with spatial statistics. With the intensification of TCs due to global warming, such a significant increase in TC experiences near the major rice-producing coastal region raises concerns about future agricultural sustainability.

scholarly journals Vulnerable Territories: The Perpetually Shifting Edge

2021 ◽  
Author(s):  
◽  
Joseph Wellwood
Keyword(s):  
At Risk ◽  
Sense Of Place ◽  
Architectural Design ◽  
Coastal Hazards ◽  
Adaptive Planning ◽  
Coastal Community ◽  
Sea Levels ◽  
Community Model ◽  
Rising Sea Levels ◽  
Imminent Threat

<p>New Zealand’s coastline is rapidly receding. The increased threat of rising sea levels continues to erode the shore line causing extensive and irreparable damage to thousands of coastal properties, often dismantling communities and the kiwi dream of living near the ocean. With global temperatures continuing to rise, all of our coastal communities are at risk. The current measure of response to this issue is through managed retreat, the removal and relocation of all ‘at risk’ buildings in coastal hazard zones. While this approach is successful in preserving the physical structures, it remains an undesirable solution that forces homeowners to abandon their community and the coastline for the safety of higher ground. The retreat is hampered among debate within the effected regions as the forced detachment of long standing communities often results in the loss of ‘sense of place’ that living within a coastal community enables.  This thesis proposes that Haumoana in Hawkes Bay offers the fitting location to introduce an alternative coastal community model that actively responds to the impending hazards whilst retaining the societal poetics. Situated just south of the nearby communities of Te Awanga and Haumoana, two of the most at-risk coastal regions in New Zealand that are currently facing the prospect of dismantlement. The site was specifically chosen due to the fact that erosion is predicted to diminish half its usable land over the next century, this thesis will investigate the potential risks to the respective coastline, the role that this would play in an adaptive community, and the possible design options that can respond and enhance a future sustainable landscape.  This thesis argues that a coastal community can be designed to actively adapt and respond to the threat of erosion rather than being dismantled through retreat; that by adopting design principles that protect the land on which they are placed, the coastal hazards of the region can be lessened; and that an adaptive community model can be achieved whilst retaining the ‘sense of place’ that coastal community’s exhibit.  The thesis proposes that this can be achieved by incorporating and reinforcing natural features of the coast into the architectural design at various scales; accommodating for, and adapting to the imminent threat of erosion; and by invoking principles of sustainable design in company with adaptive planning and resilient design, thereby pushing the standards of coastal planning beyond typical practice.</p>

scholarly journals Climate Change, Mining and Traditional Indigenous Knowledge in Australia

2016 ◽  
Vol 4 (1) ◽  
pp. 92-101 ◽  
Author(s):  
Tony Birch
Keyword(s):  
Climate Change ◽  
Climate Change Impacts ◽  
Indigenous Communities ◽  
Negative Consequences ◽  
Sea Levels ◽  
Depth Of Knowledge ◽  
The North ◽  
Weather Events ◽  
Rising Sea Levels ◽  
Indigenous Society

Australia, in common with nations globally, faces an immediate and future environmental and economic challenge as an outcome of climate change. Indigenous communities in Australia, some who live a precarious economic and social existence, are particularly vulnerable to climate change. Impacts are already being experienced through dramatic weather events such as floods and bushfires. Other, more gradual changes, such as rising sea levels in the north of Australia, will have long-term negative consequences on communities, including the possibility of forced relocation. Climate change is also a historical phenomenon, and Indigenous communities hold a depth of knowledge of climate change and its impact on local ecologies of benefit to the wider community when policies to deal with an increasingly warmer world are considered. Non-Indigenous society must respect this knowledge and facilitate alliances with Indigenous communities based on a greater recognition of traditional knowledge systems.

Prospectivity of the Triassic successions of the North West Shelf of Australia: New insights from a regional integrated geoscience study

2021 ◽  
Vol 40 (3) ◽  
pp. 172-177
Author(s):  
Jarrad Grahame ◽  
Victoria Cole
Keyword(s):  
Evaluation Tool ◽  
System Perspective ◽  
Sea Levels ◽  
North West ◽  
Petroleum Systems ◽  
The North ◽  
Study Results ◽  
Half Graben ◽  
Rift Zones ◽  
Rising Sea Levels

The North West Shelf (NWS) of Australia is a prolific hydrocarbon province hosting significant volumes of hydrocarbons, primarily derived from Jurassic and Cretaceous targets. A new regional, integrated geoscience study has been undertaken to develop insights into the paleogeography and petroleum systems of Late Permian to Triassic successions, which have been underexplored historically in favor of Jurassic to Cretaceous targets. Within the NWS study area, graben and half-graben depocenters developed in response to intracratonic rifting that preceded later fragmentation and northward rifting of small continental blocks. This, coupled with contemporaneous cycles of rising sea levels, brought about the development of large embayments and shallow, epeiric seas between the Australian continental landmass and outlying continental fragments in the early stages of divergence. Key elements of the study results discussed herein include the study methodology, the paleogeographic and gross depositional environment mapping, and the reservoir and source kitchen modeling. The study results highlight the presence of depocenters that developed within oblique rift zones due to regional Permo-Triassic strike-slip tectonics that bear compelling similarities to modern-day analogues. These intracratonic rift zones are well-known and prominent tectonic features resulting from mantle upwelling and weakening of overlying lithospheric crust, initiating the development of divergent intraplate depocenters. The comprehensive analysis of these depocenters from a paleogeographic and petroleum system perspective provides a basin evaluation tool for Triassic prospectivity.

The dependence of UK extreme sea levels and storm surges on the North Atlantic Oscillation

2007 ◽  
Vol 27 (7) ◽  
pp. 935-946 ◽  
Author(s):  
P.L. Woodworth ◽  
R.A. Flather ◽  
J.A. Williams ◽  
S.L. Wakelin ◽  
S. Jevrejeva
Keyword(s):  
North Atlantic Oscillation ◽  
North Atlantic ◽  
Storm Surges ◽  
Sea Levels ◽  
The North ◽  
Extreme Sea Levels ◽  
The North Atlantic ◽  
The North Atlantic Oscillation

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 Baltic Sea coastal erosion; a case study from the Jastrzębia Góra region

Geologos ◽  
2014 ◽  
Vol 20 (4) ◽  
pp. 259-268 ◽  
Author(s):  
Grzegorz Uścinowicz ◽  
Regina Kramarska ◽  
Dorota Kaulbarsz ◽  
Leszek Jurys ◽  
Jerzy Frydel ◽  
...  
Keyword(s):  
Storm Surges ◽  
Hydrotechnical Construction ◽  
Aerial Photographs ◽  
Sea Levels ◽  
General Importance ◽  
Wave Effects ◽  
Active Landslide ◽  
Rising Sea Levels ◽  
Remote Sensing Methods

Abstract The coastline in the Jastrzębia Góra area can be divided into three major zones of general importance: a beach and barrier section, a cliff section, and a section protected by a heavy hydrotechnical construction. These areas are characterised by a diverse geology and origin, and hence different vulnerability to erosion. In addition, observations have demonstrated a different pace of erosion within each zone. Based on the results obtained by remote sensing methods (analysis of aerial photographs and maps), it has been determined that the coastline in the barrier area, i.e., to the west of Jastrzębia Góra, moved landwards by about 130 m, in a period of 100 years, and 80 m over about 50 years. A smaller displacement of the shoreline could be observed within the cliff. Between the middle of the twentieth and the start of the twenty-first centuries the shore retreated by about 25 m. However, in recent years, an active landslide has led to the displacement of the uppermost part of the cliff locally up to 25 m. Another issue is, functioning since 2000, a heavy hydrotechnical construction which has been built in order to protect the most active part of the cliff. The construction is not stable and its western part, over a distance of 50 m, has moved almost 2 m vertically downwards and c. 2.5 m horizontally towards the sea in the past two years. This illustrates that the erosional factor does not comprise only marine abrasion, but also involves land-based processes determined by geology and hydrogeology. Changes in the shoreline at the beach and barrier part are constantly conditioned by rising sea levels, the slightly sloping profile of the sea floor and low elevation values of the backshore and dune areas. Cliffs are destroyed by mass wasting and repetitive storm surges that are responsible for the removal of the colluvium which protects the coast from adverse wave effects. Presumably, mass movements combined with groundwater outflow from the cliff, plus sea abrasion cause destabilisation of the cliff protection construction.

scholarly journals The catastrophic final flooding of Doggerland by the Storegga Slide tsunami

2008 ◽  
Vol 35 ◽  
pp. 1-24 ◽  
Author(s):  
Bernhard Weninger ◽  
Rick Schulting ◽  
Marcel Bradtmöller ◽  
Lee Clare ◽  
Mark Collard ◽  
...  
Keyword(s):  
Continental Shelf ◽  
North Sea ◽  
Submarine Landslide ◽  
Sea Levels ◽  
The Holocene ◽  
The North ◽  
Coastal Margin ◽  
The North Sea ◽  
Rising Sea Levels ◽  
Storegga Slide

Around 8200 calBP, large parts of the now submerged North Sea continental shelf (‘Doggerland’) were catastrophically flooded by the Storegga Slide tsunami, one of the largest tsunamis known for the Holocene, which was generated on the Norwegian coastal margin by a submarine landslide. In the present paper, we derive a precise calendric date for the Storegga Slide tsunami, use this date for reconstruction of contemporary coastlines in the North Sea in relation to rapidly rising sea-levels, and discuss the potential effects of the tsunami on the contemporaneous Mesolithic population. One main result of this study is an unexpectedly high tsunami impact assigned to the western regions of Jutland.

scholarly journals Rising Seas: Coastal Adaptation to Climate Change

2021 ◽  
Author(s):  
◽  
Shivani Patel
Keyword(s):  
Climate Change ◽  
Management Practices ◽  
New Technologies ◽  
Global Climate ◽  
Storm Surges ◽  
Management Plan ◽  
Integrated System ◽  
Adaptation To Climate Change ◽  
Sea Levels ◽  
Rising Sea Levels

<p><b>Science tells us that we are close to the irreversible tipping point into an unknown climate of the Anthropocene in which humanity has no option but to adapt or to be destroyed. Human influence is changing the earth and a major factor is urbanisation. Cities are one of the largest contributors to global climate change.</b></p> <p>This thesis develops a design-led research methodology and approach that develops alternative, speculative landscape intervention strategies to bridge the gap between climate change science and the landscape and the residents of Island Bay, in the city of Wellington, New Zealand. This research aims to take full advantage of new technologies and systems to provide resilient social, ecological and physical solutions for the coastal neighbourhood in the face of climate-related change. These solutions form a comprehensive framework and tools that anticipate a foreseeable future of saturated landscapes. It is a strategy that builds the adaptive capacity of the coastal zone, enhances existing natural systems, accommodates a variety of best coastal management practices and integrates alternative concepts in the coastal neighbourhood adaptation management plan.</p> <p>These solutions address the unpredictable issue of rising sea levels, storm surges and coastal inundation. In addition, the approach fosters urban environment solutions at various scales, such what a property owner can do and what public/private cooperation can do. Overall, this new integrated system approach has the potential to recalibrate urban coastal environments, catalyse resiliency and provide a robust model for designing mitigative, adaptative coastal communities in response to rising sea-levels and to support a new set of relationships between nature and urbanity.</p>

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