Tsunamis Hurricanes And Neotectonics As Driving Mechanisms In Coastal Evolution
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Tsunamis Hurricanes And Neotectonics As Driving Mechanisms In Coastal Evolution Proceedings Of The Bonaire Field Symposium March 2 6 2006 A Contribution To Igcp 495
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Author : Anja Scheffers
language : en
Publisher:
Release Date : 2006
Tsunamis Hurricanes And Neotectonics As Driving Mechanisms In Coastal Evolution Proceedings Of The Bonaire Field Symposium March 2 6 2006 A Contribution To Igcp 495 written by Anja Scheffers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Tsunamis Hurricanes And Neotectonics As Driving Mechanisms In Coastal Evolution
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Author : Anja Scheffers
language : en
Publisher:
Release Date : 2006
Tsunamis Hurricanes And Neotectonics As Driving Mechanisms In Coastal Evolution written by Anja Scheffers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Coast changes categories.
Sedimentary Coastal Zones From High To Low Latitudes
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Author : I.P. Martini
language : en
Publisher: Geological Society of London
Release Date : 2014-10-24
Sedimentary Coastal Zones From High To Low Latitudes written by I.P. Martini and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-24 with Science categories.
We live in a world where the loss of sea ice and thawing of coastal grounds in the north, and renewed marine transgression and an increase in the frequency of extreme weather events globally, are becoming commonplace. This volume presents a timely examination of coasts, the geological environment at particular risk, as global warming brings on this new reality. In 23 papers, low lying, mainly siliciclastic coasts are reviewed, described and analysed, under a variety of climates in quasi-stable tectonic settings along passive, trailing-continental edges from Polar Regions to the Tropics. Examples include coast of the Arctic seas, temperate to tropical eastern shores of the Americas, western Portugal, Mediterranean, Persian Gulf, South Africa and Australia. The entire coastal zone (landscape) is considered ranging from geophysical processes and products to biological entities including the adaption of Native People in various climatic zones. Knowledge of the state of the coasts now, and how the coastal plain has evolved since Late Pleistocene, is crucial for any realistic planning for the future.
Lagoons Of Sri Lanka
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Author : Silva, E. I. L.
language : en
Publisher: IWMI
Release Date : 2013-03-01
Lagoons Of Sri Lanka written by Silva, E. I. L. and has been published by IWMI this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-01 with Nature categories.
Sri Lanka, an island in the Indian Ocean, has lagoons along 1,338 km of its coastline. They experience low-energy oceanic waves and semidiurnal microtidal currents. The Sri Lankan coastal lagoons are not numerous but they are diverse in size, shape, configuration, ecohydrology, and ecosystem values and services. The heterogeneous nature, in general, and specific complexities, to a certain extent, exhibited by coastal lagoons in Sri Lanka are fundamentally determined by coastal and adjoining hinterland geomorphology, tidal fluxes and fluvial inputs, monsoonal-driven climate and weather, morphoedaphic attributes, and cohesive interactions with human interventions.Most coastal lagoons in Sri Lanka are an outcome of mid-Holocene marine transgression and subsequent barrier formation and spit development enclosing the water body between the land and the sea. This process has varied from one coastal stretch to another due to wave-derived littoral drift, sediment transport by tidal fluxes, fluvial inputs and wave action or, in other words, sea-level history, shore-face dynamics and tidal range as the three major factors that control the origin and maintenance of the sandy barrier, the most important features for the formation and evolution of coastal lagoons with their landward water mass. In certain stretches of Sri Lanka’s coastline, formation of the barrier spit was very active due to shore-face dynamics that resulted in chains of shore parallel, elongated lagoons. They are among the most productive in terms of ecosystem yield and show some similarities to large tropical lagoons with respect to sea entrance, zonation, biodiversity and ecosystem services. However, some of them become seasonally hypersaline due to lack of freshwater input and high evaporation. Functions and processes of some of these water bodies are fairly known. There are a fair number of small back-barrier lagoons of different shapes and sizes whose origin goes back to sea-level history. They are located on low-energy coasts with prominent beach ridges and restricted hinterland geomorphology. Mixing processes of these landward indentations are hindered by elevated sand dunes, and their salinity increases due to poor freshwater input and high evaporation leading to seasonally hypersaline conditions. These sedimented lagoons, primarily confined to the southeastern coast of the island, are biologically the least productive, with limited ecosystem values and services. Another group of moderately elongated semicircular, slightly large lagoons in the same coast, formed exclusively by submergence due to mid-Holocene sea-level rises, do not receive sufficient freshwater input leading to seasonally hypersaline conditions. They are also biologically unproductive but some are ecologically important since they provide habitats conducive to migratory birds. In contrast, some lagoons on the southern coast receive sufficient freshwater via streams draining the wet zone, maintain more estuarine salinities, exhibit rich biodiversity and serve as functional resource units. Lagoons formed by mid-Holocene submergence and recession of water level with simultaneous chain barrier formation on the high energy southwest coast, which includes cliffs, small bays and headlands, show peculiar configurations and link channel characteristics. Some of these irregular water bodies have clusters of small isles and luxuriant mangrove swamps with high biodiversity but not very rich in catadromous finfish and shellfish species due to the restricted nature of the entrance channel and nondistinct salinity gradients. The barrier-built, seasonally hypersaline lagoon complex in the Jaffna Peninsula, the largest lagoon system in the country with multiple perennial entrances show extremely narrow salinity ranges towards the upper limit of salinity. The main lagoon is elongated and the shore parallel to eastward and southward extensions is connected by narrow channels. The other lagoon in the Jaffna Peninsula is elongated, shore parallel and ribbon-shaped and receives tidal water throughout the year but freshwater is received only from precipitation and surface runoff. Even though the lagoons in the peninsula are extremely rich in ecosystem heterogeneity their hydrology and hydrodynamics have been severely disturbed by infrastructural development for transportation and by attempts to create a freshwater river for Jaffna. There are a few virgin lagoons of moderate size also on the northern coast, south of the Jaffna Peninsula on both the east and west sides. They look very typical tropical lagoons rich in biodiversity and biological production but their structure, functions and values are virtually unknown in scientific or socioeconomic terms. The lagoons located on the east coast are not numerous but relatively large in extent. They are also an outcome not only of mid-Holocene sea-level rises but of submerged multi-delta valleys or abandoned paleo estuaries. When inundated, the multi-delta valley configuration became elongated and is shore parallel with a smooth seaward shoreline; both shorelines become irregular when coastal waves are weak, and internal waves are created by the action of local winds. Configuration of a lagoon formed by inundation of an abandoned river valley is irregular with a long entrance channel extended landward. These lagoons are highly productive with a variety of associated ecosystems, large open water areas and wide perennial sea entrances. When the lagoon is too much elongated, zonation is prominent due to fewer entrance effects. Lagoons form a particular type of natural capital which generates use values (fish, shrimp, fuelwood, salt, fodder, ecotourism, anchorage, recreation, etc.) and nonuse values (habitat preservation, biodiversity, ecosystem linkages, etc.) contributing positively towards improving the human well-being. Of many values of lagoons in Sri Lanka, only the extractive values are generally utilized at present, by way of fish and shrimp catches, salt production and use of mangrove for various purposes. Besides, coastal lagoons generate a range of nonextractive use values and nonuse values, which could add towards the total economic value. Misuse has taken place at several instances when “use” adversely affects the status of the resources or the health of the ecosystem due to vulnerability and poverty, population pressure, urbanization, development activities and multi-stakeholder issues. The status of lagoon resources shows that the resources in the majority of Sri Lankan lagoons still remain satisfactory, somewhat good or very good. Nevertheless, concerns for management of lagoons in Sri Lanka exist only where “use values” (extractive values, such as fish and shrimp) exist. There is no evidence of resources management in lagoons for inspirational, scholarly values or tacit knowledge of the same. Management for use values exhibits several stages from zero management to comanagement via community management and state intervention. Most of Sri Lanka’s lagoons have the potential for generating high extractive and nonextractive use values which could improve the human well-being, while maintaining resources sustainability. Unfortunately, these potentials have not been understood or “seen” yet by the relevant authorities, although a few instances of exploring this potential were noticed.
Population Dynamics Of The Reef Crisis
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Author :
language : en
Publisher: Academic Press
Release Date : 2020-11-13
Population Dynamics Of The Reef Crisis written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-13 with Science categories.
Population Dynamics of the Reef Crisis, Volume 87 in the Advances in Marine Biology series, updates on many topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology and biological oceanography. Chapters in this new release cover SCTL disease and coral population dynamics in S-Florida, Spatial dynamics of juvenile corals in the Persian/Arabian Gulf, Surprising stability in sea urchin populations following shifts to algal dominance on heavily bleached reefs, Biophysical model of population connectivity in the Persian Gulf, Population dynamics of 20-year decline in clownfish anemones on coral reefs at Eilat, northern Red Sea, and much more. Reviews articles on the latest advances in marine biology Authored by leading figures in their respective fields of study Presents materials that are widely used by managers, students and academic professionals in the marine sciences
Tsunamiites
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Author : Tsunemasa Shiki
language : en
Publisher: Elsevier
Release Date : 2020-11-27
Tsunamiites written by Tsunemasa Shiki and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-27 with Science categories.
Tsunamiites: Features and Implications, Second Edition, is an overview of the state-of-the art developments in sedimentology of tsunami-induced and tsunami-affected deposits, namely tsunamiites. It also highlights new problems and issues calling for additional investigation and provides insight into the direction for future tsunamiite research. New to this edition: discussion of the impact of 2011 tsunami in Northern Japan as well as additional coverage of offshore tractive current deposition and deposition of boulders. Includes a comprehensive overview of new developments in tsunamiites from leading experts Covers future trends and development needs for researching sediments from tsunamis New edition includes coverage and lessons learned from the 2011tsunami in Northern Japan
Coastal And Marine Hazards Risks And Disasters
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Author : Jean Ellis
language : en
Publisher: Academic Press
Release Date : 2014-11-11
Coastal And Marine Hazards Risks And Disasters written by Jean Ellis and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-11 with Science categories.
Sea and Ocean Hazards, Risks and Disasters provides a scientific approach to those hazards and disasters related to the Earth's coasts and oceans. This is the first book to integrate scientific, social, and economic issues related to disasters such as hazard identification, risk analysis, and planning, relevant hazard process mechanics, discussions of preparedness, response, and recovery, and the economics of loss and remediation. Throughout the book cases studies are presented of historically relevant hazards and disasters as well as the many recent catastrophes. Contains contributions from experts in the field selected by a world-renowned editorial board Cutting-edge discussion of natural hazard topics that affect the lives and livelihoods of millions of humans worldwide Numerous full-color tables, GIS maps, diagrams, illustrations, and photographs of hazardous processes in action will be included
Palaeo Environmental Dynamics And Archaeological Sites
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Author : Kosmas Pavlopoulos
language : en
Publisher:
Release Date : 2009
Palaeo Environmental Dynamics And Archaeological Sites written by Kosmas Pavlopoulos and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Excavations (Archaeology) categories.
Annales De G Omorphologie
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Author : Andreas Aigner
language : en
Publisher:
Release Date : 2008
Annales De G Omorphologie written by Andreas Aigner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Geomorphology categories.
Geoecology In The Tropics
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Author : Hanna Bremer
language : en
Publisher:
Release Date : 2010
Geoecology In The Tropics written by Hanna Bremer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Geomorphology categories.