Dun Ara

2020 ◽  
Vol 149 ◽  
pp. 145-163
Author(s):  
James Petre
Keyword(s):  
Recent Work ◽  
Tidal Cycle ◽  
Short Article ◽  
Sea Levels ◽  
The North ◽  
History Of ◽  
Rising Sea Levels

This short article explores the archaeology and fragmentary history of the site known as Dun Ara, in Mishnish, north Mull, in the light of increasing evidence of a Norse presence both generally in this part of the Inner Hebrides and more specifically this area of Mull. The focus is on the harbour and its appendages but it refers as well to the associated settlement and dun – or castle – perched above to the north. It is set in the context of recent work on early harbours and landing places in the Western Isles, some of which have been demonstrated to have had a Norse presence. Consideration is given to the ramifications of the tidal cycle and to what extent, if any, isostatic change and rising sea levels may affect the ‘picture’ as it is now observed. While reflecting that the evidence for a ‘Norse’ period at Dun Ara remains circumstantial, it suggests that the absence of conclusive proof does not preclude the likelihood.   Canmore ID 11028 Canmore ID 22069 Canmore ID 22071

scholarly journals Twitter under Storm: Social Media Response Sensitization in the Caribbean

2020 ◽  
Author(s):  
Danilo T Perez-Rivera ◽  
Alexis Josué Martínez ◽  
Adriana Pons ◽  
Alejandro Rodríguez-Natal ◽  
Sergio Andrés Davila-Santana
Keyword(s):  
Social Media ◽  
Emergency Preparedness ◽  
Previous History ◽  
The Bahamas ◽  
Sea Levels ◽  
History Of ◽  
The Caribbean ◽  
Rising Sea Levels ◽  
Hurricane Exposure ◽  
Effective Design

Climate change has led to rising sea levels and warmer sea surface temperatures. These factors contribute greatly to the intensity of hurricanes and floods they provoke. Projections estimate there will be an increase of 45% to 87% in the frequency of Category >4 hurricanes originating in the Atlantic Basin, which typically impact the Caribbean and Continental United States of America. During the 2019 Hurricane Season, there were 20 depressions, 18 storms, 6 hurricanes and 3 major hurricanes. Through this work, we explored the response on Social Media to these natural phenomena as a function of their trajectory, intensity, and previous exposure of the population to intense natural disasters. Data was collected through the Twitter API. The influences of hurricane proximity and intensity on volume of Social Media production was explored. Hurricane Dorian, with its trajectory strongly threatening the previously exposed Puerto Rico, and eventually causing widespread damage in the Abaco Islands of the Bahamas, presented the strongest case for the evaluation of the dichotomy of responses between populations with differences in previous history of exposure. The landscape of historic hurricane exposure Caribbean has radically changed in recent years. Taking advantage of Big Data to help elucidate these dynamics could be instrumental in the tailoring of emergency preparedness plans and the effective design of mental health first aid strategies.

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.

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 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 Ecoutopia from Fiction to Fact: An Interview with Heather Alberro

2020 ◽  
Vol 1 (2) ◽  
pp. 44-47
Author(s):  
Heather Alberro
Keyword(s):  
Climate Change ◽  
New York ◽  
Human Being ◽  
Sea Levels ◽  
Stephen Hawking ◽  
Ecological Consideration ◽  
History Of ◽  
Rising Sea Levels ◽  
Paris Climate Agreement ◽  
The Impact

Human is at the heart of the story of climate change in the Anthropocene where, according to Dipesh Chakrabarty (2012), human behaviors have influenced the environment and created a distinct geological epoch. Current climate change issues are largely human induced. This implies that the human species is now part of the natural history of the planet.  In November 2016, Stephen Hawking warned that humanity has 1000 years to leave the earth due to climate change, but in his most recent BBC documentary aired on June 15, 2017 called Expedition New Earth, he suggested humans have just 100 years left before doomsday. In spite of such warnings and writings, Donald Trump withdrew America from the Paris Climate Agreement on June 2017, on the same day, satellite images showed that a huge mass of ice in an area of ​​five thousand square kilometres was breaking away from the Antarctic continent under the impact of rising temperature. It seems that Trump’s act is beyond ecological consideration as he believes the agreement could “cost America as much as 2.7 million lost jobs by 2025”. Projections of climate change, however, have shown horrible scenarios involving a central economic metropolis such as New York losing much of its lands because of rising sea levels. The inhabitants of such areas will have to uproot their communities and cultures to move to less vulnerable lands. Thus, it is important to examine how ecoutopian literature is responding to the conditions of the human being in this epoch. In the following interview, Heather Alberro has answered to some questions on climate change, the conditions of human being in the Anthropocene, and the role of literature and culture in relation to environmental issues.

Experiments in sandscaping: Liminal entanglements on the Norfolk and South Holland Coast

Book 2 0 ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 95-106 ◽  
Author(s):  
Rosanne van der Voet
Keyword(s):  
Environmental Crisis ◽  
Coastal Environments ◽  
Sea Levels ◽  
The North ◽  
Plant Life ◽  
The North Sea ◽  
Time Machines ◽  
Rising Sea Levels ◽  
Adaptive Nature ◽  
Bristle Worms

This hybrid creative-critical article explores how new ways of living beyond the current environmental crisis are forged on two sandscaping schemes that have been constructed as new experimental measures against coastal erosion. The Zandmotor, created in 2011, is an artificial peninsula built out of sand on the coast of South Holland. The success of this project inspired a similar sandscaping scheme at Bacton on the coast of Norfolk, constructed in 2019. The strange liminal landscapes that are the result of these projects are not just symbols of adaptive, nature-based water management in times of rising sea levels, they also become time machines, making fossils of different times emerge out of the sand taken from the seabed of the North Sea. In addition, the sandscapes are symbols of the artificialization of the coastal landscape, given the fact that sand suppletions disrupt not only life on the beach, but also destroy much bottom-dwelling life on the seabed from which the sand is harvested. However, these unique liminal landscapes between land and sea also create new ecological opportunities. At the Zandmotor, for example, rare bristle worms and Baltic clams have made their unexpected appearance. Moreover, the sandscape invites people not just to look for fossilized mammoth teeth, but also inspires them to create sense-altering art projects specifically adapted to the unique conditions in the area. In this article, I trace these various significances of both sandscaping schemes and argue that they cannot be reduced to any of these different meanings. Instead, I describe the Zandmotor as an example of Donna Haraway’s idea of ‘staying with the trouble’ (2016: 4) and Anna Lowenhaupt Tsing’s concept of ‘contaminated diversity’ (2015: 30). For although enormous amounts of animal and plant life have been destroyed for the creation of the Zandmotor, this does not discredit the fact that this new liminal environment has opened up new ecological opportunities for multispecies flourishing, creating unexpected combinations of landscapes and creatures. These new combinations inspire a shift in thinking about coastal environments and present new ways of living that may emerge beyond the current environmental crisis.

scholarly journals INTEGRATED MODELLING TO PREDICT LANDSCAPE EVOLUTION, FLOODING, AND WATER QUALITY IN JAMAICA BAY, NY

2018 ◽  
pp. 3
Author(s):  
Heather D. Smith ◽  
Philip Orton ◽  
Eric W. Sanderson ◽  
Jordan Fischbach
Keyword(s):  
Water Quality ◽  
New York ◽  
Integrated Modelling ◽  
The West ◽  
Sea Levels ◽  
Natural Systems ◽  
The North ◽  
Coastal Embayment ◽  
Jamaica Bay ◽  
Rising Sea Levels

It is well-known that rising sea levels will increase pressure along shorelines, yet how society and natural systems will respond is uncertain. Natural systems such as wetlands can respond dynamically to changing conditions, and recent sea level rise has been matched in many places with a rising marsh substrate. The societal response to increasing flooding by necessity is adaptation, particularly in areas with a higher population. However, the subsequent influences on flooding, habitat, and water quality have rarely been evaluated. Jamaica Bay, NY is a coastal embayment bounded on the south by the Rockaway Peninsula and the Atlantic Ocean, on the north by Brooklyn, Queens, and Nassau counties, on the east by the John F. Kennedy Airport, and to the lower bay of New York Harbor on the west through the Rockaway Inlet (Sanderson et al. 2016). The Bay perimeter is home to a large human population, as well as a variety of wildlife that live within the Bay’s salt marsh and adjacent upland ecosystems. The Bay has been identified as an area where ecosystem restoration will potentially have a major impact for protection of the Bay’s population, as well as enhancing the recreational, commercial, and ecological services the Bay provides.

scholarly journals Giant boulders and Last Interglacial storm intensity in the North Atlantic

2017 ◽  
Vol 114 (46) ◽  
pp. 12144-12149 ◽  
Author(s):  
Alessio Rovere ◽  
Elisa Casella ◽  
Daniel L. Harris ◽  
Thomas Lorscheid ◽  
Napayalage A. K. Nandasena ◽  
...  
Keyword(s):  
Sea Level ◽  
North Atlantic ◽  
Global Climate ◽  
Last Interglacial ◽  
The Bahamas ◽  
Sea Levels ◽  
Storm Intensity ◽  
The North ◽  
Rising Sea Levels ◽  
Mis 5E

As global climate warms and sea level rises, coastal areas will be subject to more frequent extreme flooding and hurricanes. Geologic evidence for extreme coastal storms during past warm periods has the potential to provide fundamental insights into their future intensity. Recent studies argue that during the Last Interglacial (MIS 5e, ∼128–116 ka) tropical and extratropical North Atlantic cyclones may have been more intense than at present, and may have produced waves larger than those observed historically. Such strong swells are inferred to have created a number of geologic features that can be observed today along the coastlines of Bermuda and the Bahamas. In this paper, we investigate the most iconic among these features: massive boulders atop a cliff in North Eleuthera, Bahamas. We combine geologic field surveys, wave models, and boulder transport equations to test the hypothesis that such boulders must have been emplaced by storms of greater-than-historical intensity. By contrast, our results suggest that with the higher relative sea level (RSL) estimated for the Bahamas during MIS 5e, boulders of this size could have been transported by waves generated by storms of historical intensity. Thus, while the megaboulders of Eleuthera cannot be used as geologic proof for past “superstorms,” they do show that with rising sea levels, cliffs and coastal barriers will be subject to significantly greater erosional energy, even without changes in storm intensity.

scholarly journals A Study on the Impacts of Climate Change on various sectors, with reference to the state of Karnataka

2020 ◽  
pp. 402-407
Keyword(s):  
Climate Change ◽  
Heat Waves ◽  
Negative Consequences ◽  
Defining Moment ◽  
Sea Levels ◽  
Weather Patterns ◽  
The North ◽  
Rising Sea Levels ◽  
The Impact ◽  
Impacts Of Climate Change

Climate Change is the defining issue of our time and we are at a defining moment. From shifting weather patterns that threaten food production, to rising sea levels that increase the risk of catastrophic flooding, the impacts of climate change are global in scope and unprecedented in scale. Without drastic action today, adapting to these impacts in the future will be more difficult and costly. India is both a major greenhouse gas emitter and one of the most vulnerable countries in the world to projected climate change. The country is already experiencing changes in climate and the impacts of climate change, including water stress, heat waves and drought, severe storms and flooding, and associated negative consequences on health and livelihoods. With a 1.2 billion but growing population and dependence on agriculture, India probably will be severely impacted by continuing climate change. Karnataka is the second most vulnerable state in India to be impacted by Climate Change as the North Karnataka regions have the arid and driest regions. As a progressive state, Karnataka envisions job oriented, inclusive economic growth. This will require sustainable industrialization and livelihood diversification. However, such a transition is likely to increase the demand for resources and energy significantly. In this, our proposed study will enable us to know the impact of climate change on important sectors like energy and agriculture, which are the backbone of the state’s economy.

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