Download or read book Significance of Mesoscale Warm Core Eddy on Marine and Coastal Environment of the Bay of Bengal written by Krishna Kishore Osuri and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bay of Bengal (BoB) is an affluent region for the mesoscale (eddies) and synoptic scale (cyclones) systems. It occurs primarily through the seasonal variations, dynamical instabilities and equatorial wind forcing mechanisms. The individual or cumulative effect of these changes is vulnerable to the coastal and marine ecosystems. For example, tropical cyclone (TC) AILA experienced a warm core eddy (WCE) before the landfall, and consequently it intensified into a severe cyclonic storm (CS) and remained as a CS up to 15¬†h after the landfall. Its severity produces a heavy rainfall of >18¬†cm¬†day,àí1, thus leads to the coastal flooding. The eddy contribution to the TC is witnessed during and after the landfall. Inappropriately, high resolution in-situ observations are not available to identify such important processes on different time and spatial scales. Therefore, the present chapter analyses the northern BoB eddy induced signals using both in-situ and satellite (advanced microwave scanning radiometer,ÄîAMSR-2) derived products. Two in-situ locations (BD08 and BD09) are employed for this study purpose. The eddy responses at no-eddy, during and after eddy, have been analyzed. Besides, WCE imprints on the overlying atmosphere are also observed. The relationship between sea surface temperature and wind speed over the BoB region is assessed.

Download or read book Coastal and Marine Environments written by José Simão Antunes Do Carmo and published by BoD – Books on Demand. This book was released on 2020-01-22 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematizes the concepts of contemporary coastal zone management and suggests possible structural and non-structural management tools for decision-making processes. Some successful adaptation measures and case studies on oceanic processes and coastal protection are discussed. High-frequency communications in coastal and marine environments are also addressed.All chapters contribute relevant information and useful content to scientists and other readers interested or concerned about the lack of adequate management actions and the installation of appropriate protections or their ineffectiveness in containing coastal vulnerabilities and risks.

Download or read book Indian Ocean Biogeochemical Processes and Ecological Variability written by Jerry D. Wiggert and published by John Wiley & Sons. This book was released on 2013-05-09 with total page 1037 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 185. Indian Ocean Biogeochemical Processes and Ecological Variability provides a synthesis of current knowledge on Indian Ocean biogeochemistry and ecology and an introduction to new concepts and topical paradigm challenges. It also reports on the development of more extensive/frequent observational capacity being deployed in the Indian Ocean. This represents the first collection of syntheses that emphasize a basin-wide perspective, and the contributing authors include some of the most esteemed oceanographers and Indian Ocean experts in the world. The volume is derived from invited plenary talks that were presented at the initial Sustained Indian Ocean Biogeochemistry and Ecosystem Research (SIBER) workshop held at the National Institute of Oceanography (NIO) in Goa, India, in October 2006. The volume discusses The overlying physical processes set by monsoonal forcing and how these control biological production and variability Nutrient cycling and limitation Pelagic carbon cycling and air-sea exchange Benthic biogeochemistry and ecology The impact of climate and human activities on biogeochemistry and ecosystems. The readership for this book will consist of academic and governmental researchers interested in exploring how oceanographic, atmospheric, and hydrological processes combine to establish the environmental setting that supports and drives the pelagic system and which are especially relevant to understanding the complex biogeochemical and ecological interactions in the Indian Ocean.

Download or read book Eddies in Marine Science written by A. R. Robinson and published by Springer. This book was released on 2011-12-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is now well known that the mid-ocean flow is almost everywhere domi nated by so-called synoptic or meso-scale eddies, rotating about nearly vertical axes and extending throughout the water column. A typical mid ocean horizontal scale is 100 km and a time scale is 100 days: these meso scale eddies have swirl speeds of order 10 cm s -1 which are usually con siderably greater than the long-term average flow. Many types of eddies with somewhat different scales and characteristics have been identified. The existence of such eddies was suspected by navigators more than a century ago and confirmed by the world of C. O'D. Iselin and V. B. Stock man in the 1930's. Measurements from RIV Aries in 1959/60, using the then newly developed neutrally buoyant floats, indicated the main char acteristics of the eddies in the deep ocean of the NW Atlantic while a se ries of Soviet moored current-meter arrays culminated, in POLYGON- 1970, in the explicit mapping of an energetic anticyclonic eddy in the tropical NE Atlantic. In 1973 a large collaborative (mainly U. S. , U. K. ) program, MODE-I, produced synoptic charts for an area of the NW At lantic and confirmed the existence of an open ocean eddy field and es tablished its characteristics. Meso-scale eddies are now known to be of interest and importance to marine chemists and biologists as well as to physical oceanographers and meteorologists.

Download or read book Advances in marine heatwave interactions written by Sarah Elizabeth Perkins-Kirkpatrick and published by Frontiers Media SA. This book was released on 2023-04-26 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Legal Regime of Marine Environment in the Bay of Bengal written by M. Habibur Rahman and published by Atlantic Publishers & Dist. This book was released on 2007 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: There Is A Growing Concern About The Change In Composition Of The Atmosphere, Depletion Of The Ozone Shield, Pollution Of Marines And Rapid Population Growth Leading To Alarming Imbalance Between Population And Resources. Concerted Efforts Are Being Made Across The World To Curb The Environmental Degradation. The Un Conference On The Human Environment Held In Stockholm In 1972 Marked The Beginning Of The Development Of International Environmental Law By Soft Law Mechanism. With The Un Convention On The Law Of The Sea, 1982, The State Parties Have Been Made Obligatory To Protect The Marine Environment, Including All The Resources Therein.The Present Book Is A Treatise On The Legal Regime Of The Marine Environment In The Bay Of Bengal. It Provides A Comprehensive Description And Assessment Of The Legal Regime Governing This Particular Maritime Area. It Focuses On Its Protection, Preservation And Development. It Deals With Fisheries As Well As The Protection Of The Environment Against Pollution And The Discharge Of Waste From Land.Beginning With The Study Of Fisheries Management In The Bay Of Bengal, The Book Includes In Its Study The Major Agreements And Protocols, International Documents On Marine Environment, Seabed Mining And Its Consequences, Settlement Of Environmental Disputes, And The Present-Day Socio-Economic Condition In The Bay Of Bengal Region. The Book Also Provides A Bibliography To Enable The Readers To Pursue Their Study Further. The Index That Completes The Book Would Prove A Useful Study-Aid To All Readers. Since The Study Is Embedded In The Global Perspective Of The Protection Of The Marine Environment, It Shall Be Of Significant Use To All Those In Coastal And Naval Services, Government Executives, Planners And Policy Makers Concerned With The Protection Of The Marine Environment. For The Scholars And Teachers Of International Law, It Is An Ideal Reference Book.

Download or read book Regional Oceanography Of The South China Sea written by Jianyu Hu and published by World Scientific. This book was released on 2020-06-24 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to share newly obtained results and information on regional oceanography of the South China Sea by leading experts in fields such as water mass, circulation, mesoscale eddies, near-inertial motion, upwelling, mixing, continental shelf waves, internal waves and fronts. These comprehensive results can provide new insights on global and regional climate change.

Download or read book Global Perspectives On Tropical Cyclones From Science To Mitigation written by Johnny C L Chan and published by World Scientific. This book was released on 2010-04-30 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a completely rewritten, updated and expanded new edition of the original Global Perspectives on Tropical Cyclones published in 1995. It presents a comprehensive review of the state of science and forecasting of tropical cyclones together with the application of this science to disaster mitigation, hence the tag: From Science to Mitigation.Since the previous volume, enormous progress in understanding tropical cyclones has been achieved. These advances range from the theoretical through to ever more sophisticated computer modeling, all underpinned by a vast and growing range of observations from airborne, space and ocean observation platforms. The growth in observational capability is reflected by the inclusion of three new chapters on this topic. The chapter on the effects of climate change on tropical cyclone activity is also new, and appropriate given the recent intense debate on this issue. The advances in the understanding of tropical cyclones which have led to significant improvements in forecasting track, intensity, rainfall and storm surge, are reviewed in detail over three chapters. For the first time, a chapter on seasonal prediction is included. The book concludes with an important chapter on disaster mitigation, which is timely given the enormous loss of life in recent tropical cyclone disasters.World Scientific Series on Asia-Pacific Weather and Climate is indexed in SCOPUS.

Download or read book Climate Change and the Bay of Bengal written by Sanjay Chaturvedi and published by Flipside Digital Content Company Inc.. This book was released on 2016-04-29 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate Change and the Bay of Bengal argues that in the era of climate change radically different understandings of security and sovereignty are at work. It questions the geopolitics of fear and the manner in which metanarratives of climate change tend to privilege the "e;global"e; and "e;national"e; scales over other scales, especially the regional and the local. The authors argue in favour of a new imagination of the Bay of Bengal space as a semi-enclosed sea, embedded in a large marine ecosystem, under the relevant provisions of the UNCLOS that impose various obligations upon its signatories to cooperate at a regional level. Such an imagination, anchored in geographies of hope, should not remain confined to official domains and discourses but become a part of popular socio-spatial consciousness through a regional public diplomacy reaching out to the grassroots level. A Bay of Bengal regional seas programme, under the auspices of UNEP, should be conceptualized and operationalized in a manner that explicitly factors in climate change consequences into the existing understandings and approaches to environmental-human security in the region.

Download or read book Satellite Observations of the Influence of Mesoscale Ocean Eddies on Near surface Temperature Phytoplankton and Surface Stress written by Peter Gaube and published by . This book was released on 2012 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: The influence of mesoscale ocean eddies on near-surface ocean temperature, surface stress and phytoplankton communities is investigated by collocating numerous satellite measurements along with vertical profiles of oceanic temperature and salinity to the interiors of eddies identified and tracked in altimetric sea surface height maps. The surface currents associated with mesoscale ocean eddies impart a curl of the surface stress from the relative motion between surface air and water. This stress curl has a polarity opposite that of the vorticity of the eddy, thus attenuating the eddies by generating Ekman upwelling in the cores of anticyclones and downwelling in the cores of cyclones. Ekman pumping also arises from eddy-induced spatial variability of the sea surface temperature (SST) field that generates a wind stress curl in regions of crosswind SST gradients through a response of surface winds to SST-induced surface heating variations. SST-induced Ekman pumping is shown to be secondary to surface current-induced pumping in most regions of the World Ocean. Eddy-induced Ekman pumping resulting from the combination of surface current effects and air-sea interaction represents an order 1 perturbation of the background, basin-scale Ekman pumping velocities from the large-scale wind fields. In western boundary currents and equatorward-flowing eastern boundary currents, cyclonic eddies preferentially entrain water from the coastal side of the boundary current, which primes the interiors of cyclones to have phytoplankton concentrations that are elevated relative to the background. In contrast, anticyclones formed in these regions contain locally depressed phytoplankton concentrations from the offshore waters. While eddy pumping from vertical displacements of isopycnals during eddy formation can affect the biology in the interiors of cyclones during the transient stage of their development, this ecosystem response cannot be sustained because of the persistent eddy-induced Ekman downwelling throughout the rest of the eddy lifetimes. Likewise, the persistent eddy-induced Ekman upwelling in anticyclones is of little benefit because of their low phytoplankton content at the time of formation. A definitive response to eddy pumping is therefore difficult to detect from satellite observations alone. Eddies formed in regions where anticyclones preferentially entrain water with elevated phytoplankton concentrations, such as the South Indian Ocean, or in some mid-ocean gyre regions where small-amplitude eddies form (e.g., the oligotrophic South Pacific), an ecosystem response to eddy-induced Ekman pumping is observed. Conversely, cyclones in these regions entrain water that is low in chlorophyll, resulting in negative chlorophyll anomalies that are sustained by Ekman downwelling throughout the eddy lifetimes. The phytoplankton response to eddy-induced Ekman upwelling in anticyclones is seasonal, occurring only during the winter. It is proposed that the mechanism for the lack of ecosystem response to eddy-induced Ekman upwelling during the summer is the decoupling of the mixed layer from the nutricline. The observations presented in this dissertation provide a baseline from which coupled ocean circulation and biogeochemical models can be assessed. If coupled models are able to reproduce correctly the observed influence of mesoscale eddies on photoautotrophic communities, further insight into the mechanisms for this variability could be gained from the model output using the methodologies developed in this dissertation together with investigation of subsurface variability in the models below the depth to which chlorophyll can be inferred from the satellite observations.

Download or read book Earth Resources written by and published by . This book was released on 1988 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book On the Generation of Mesoscale Eddies and Their Interaction with the Oceanic General Circulation written by William R. Holland and published by . This book was released on 1979 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Coastal Risk Assessment written by Ansar Khan and published by Springer. This book was released on 2018-03-22 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book discusses how to collect data and analyze databases in order to map risk zones, and contributes to developing a conceptual framework for coastal risk assessment. Further, the book primarily focuses on a specific case study: the Bay of Bengal along the southeastern coast of India. The dramatic rise in losses and casualties due to natural disasters like wind, storm-surge-induced flooding, seismic hazards and tsunami incidence along this coast over the past few decades has prompted a major national scientific initiative investigating the probable causes and possible mitigation strategies. As such, geoscientists are called upon to analyze the coastal hazards by anticipating the changes in and impacts of extreme weather hazards on the Bay of Bengal coasts as a result of global climate change and local sea-level change.

Download or read book Hydrological Features of a Warm Core Eddy and Their Biological Implications written by B. D. Scott and published by . This book was released on 1978 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Climate Change and Sea level Rise written by and published by . This book was released on 1993 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bangladesh Greenhouse Effect and Climate Change Sea level changes in the Bay of Bengal written by and published by . This book was released on 1994 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Implications of Climate and Sea Level Change for Bangladesh written by R.A. Warrick and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although the "greenhouse effect" and "global climate change" have been the subjects of scientific scrutiny for many decades, only recently have they received widespread public attention. Two major events helped generate this attention. First, in 1990 the Intergovernmental Panel on Climate Change (IPCC) published its findings on the science, impacts and policy implications of climate change. The findings of the IPCC, prepared and reviewed extensively by the world's leading experts in the field, confirmed that the increasing atmospheric concentrations of "greenhouse" gases, such as carbon dioxide, methane, nitrous oxide and the chlorofluorocarbons, could cause the world to warm and sea level to rise. Second, in 1992 the United Nations Conference on Environment and Development (UNCED) inRio de Janeiro focussed the attention of the world's national governments, as well as organisations and individuals outside the governments, on the threat of global climate change. The Framework Convention on Climate Change (FCCC), signed by nations at UNCED, reflects both the concern about the effects of climate change and the urgent need for action to prevent or reduce its potential impacts, particularly with respect to the vulnerable developing countries of the world. Bangladesh ratified the FCCC on 15 April 1994. The countries that have signed and ratified the FCCC are obligated to report to the Conference of the Parties (CoP) to the Convention on a number of inter related issues.