Effect of Submarine Groundwater Discharge on Coastal Ecology PDF Download
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Author: Wai-yan Chu (Cherry)
Publisher:
ISBN:
Category : Algal blooms
Languages : en
Pages : 80
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Book Description
Author: Wai-yan Chu (Cherry)
Publisher:
ISBN:
Category : Algal blooms
Languages : en
Pages : 80
Get Book Here
Book Description
Author: Wai-Yan Cherry Chu
Publisher:
ISBN: 9781361243756
Category :
Languages : en
Pages :
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Book Description
Author: Makoto Taniguchi
Publisher: Frontiers Media SA
ISBN: 2889665356
Category : Science
Languages : en
Pages : 158
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Book Description
Author: Joel Gat
Publisher: World Scientific
ISBN: 1860940358
Category : Science
Languages : en
Pages : 198
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Book Description
Within the realm of the newly evolving discipline of environmental sciences, the stable-isotope methodology is being used to an ever-increasing extent, especially in the study of the water cycle and of paleo-climatology. This book introduces the rules of the game, by reviewing the natural variability of stable isotopes in the hydrosphere, describing the physico-chemical basis of isotope fractionation, and applying this knowledge to natural waters as they move through the hydrologic cycle from the ocean to the atmosphere, the biosphere and the lithosphere. There is a special focus on the processes at the surface?atmosphere and land?biosphere?atmosphere interfaces, since these are the sites of major changes in isotope composition. In response to the increasing awareness of our changing climate, a discussion on the global view of the changing water cycle, in the past and future, winds up the presentation.
Author: Jimmy Jiao
Publisher: Cambridge University Press
ISBN: 1107030595
Category : Business & Economics
Languages : en
Pages : 421
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Book Description
Offers a comprehensive volume discussing groundwater problems in coastal areas, spanning fundamental science to practical water management.
Author: Beata Szymczycha
Publisher: Springer
ISBN: 3319259601
Category : Science
Languages : en
Pages : 158
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Book Description
The book provides a review of experimental methods and presents the worldwide newest literature regarding chemical substances fluxes via submarine groundwater discharge (SGD). Thus, the book characterizes both the distribution of chemicals in groundwater impacted areas in the Baltic Sea and their fluxes via SGD to the Baltic Sea. This book presents the state of art regarding the SGD and detailed studies on SGD characterization in the Baltic Sea. The Baltic Sea is an example of a region highly influenced by a variety of human activities that affect the ecosystem. It is shown that SGD has been proven to be one of the important sources introducing dissolved substances into the Baltic Sea. The loads of chemical substances delivered to the Baltic sea with SGD have not been quantified so far.
Author:
Publisher:
ISBN: 9781339160320
Category :
Languages : en
Pages : 140
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Book Description
Submarine groundwater discharge to oceans is an ever-increasing topic of study in the earth sciences due to the dynamic geochemical and biological effects it imposes on aquatic systems both by the chemical reactions it induces and the constituents it transports. Studies indicate groundwater discharge can represent a major source of nutrients, fecal indicator bacteria, caffeine, trace metals, and mercury to aquatic systems. In some systems, groundwater discharge can rival rivers and upwelling, as a source of nutrients. The implications of groundwater discharge include harmful algal blooms caused by nutrient loading and poor water quality caused by pollutants transported through groundwater discharge. Much research has been directed at quantifying the flux of groundwater and associated constituents through groundwater discharge using radium isotopes as geochemical tracers. Radium isotopes represent some of the most common geochemical proxies used to calculate groundwater discharge rates to lakes, oceans, and other water bodies. However well-established these tracers are in the scientific community, they are often used as a single proxy for groundwater discharge resulting in large errors due to natural variability and dependence on residence time, and these errors compound through the calculations. Large errors in the estimates of the volume flux of groundwater discharge lead to large errors in constituent fluxes through groundwater discharge, which diminishes the usefulness of such efforts. Additionally most SGD-focused studies stop at calculating the SGD and associated constituent fluxes, and pondering the impacts of the constituents on the marine ecosystem, with out directly measuring the impact on the system through other methods. The focus of my thesis is to integrate methods of calculating SGD fluxes based on multi-radium isotope measurements with mixing models, bioassay incubation experiments, and water isotopes to better understand the impacts of SGD on marine systems. First (Chapter 1) I will integrate a multi-radium isotope method to calculate SGD fluxes with water isotopes to better understand the hydrology of the systems to understand the governing processes and importance of SGD as a conduit of methane to the North Pacific and Artic Oceans. Then (Chapter 2) I will combine a single radium isotope SGD flux model with a bioassay incubation experiment to determine the ability of SGD to impact phytoplankton ecology in Monterey Bay, California. Last (Chapter 3) I will combine a multi-radium isotope and nutrient flux mixing model with a multi-radium isotope SGD flux model to determine the importance of SGD as a nutrient source compared to sub-thermocline water and river water in Monterey Bay, California.
Author: Ian D. Clark
Publisher: CRC Press
ISBN: 1482242915
Category : Science
Languages : en
Pages : 343
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Book Description
Groundwater is an increasingly important resource to human populations around the world, and the study and protection of groundwater is an essential part of hydrogeology - the subset of hydrology that concentrates on the subsurface. Environmental isotopes, naturally occurring nuclides in water and solutes, have become fundamental tools for tracing
Author: Jacob Bear
Publisher: Springer Science & Business Media
ISBN: 9401729697
Category : Science
Languages : en
Pages : 652
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Book Description
Coastal aquifers serve as major sources for freshwater supply in many countries around the world, especially in arid and semi-arid zones. Many coastal areas are also heavily urbanized, a fact that makes the need for freshwater even more acute. Coastal aquifers are highly sensitive to disturbances. Inappropriate management of a coastal aquifer may lead to its destruction as a source for freshwater much earlier than other aquifers which are not connected to the sea. The reason is the threat of seawater intrusion. In many coastal aquifers, intrusion of seawater has become one of the major constraints imposed on groundwater utilization. As sea water intrusion progresses, existing pumping wells, especially those close to the coast, become saline and have to be abandoned. Also, the area above the intruding seawater wedge is lost as a source of natural replenishment to the aquifer. Despite the importance of this subject, so far there does not exist a book that integrates our present knowledge of seawater intrusion, its occurrences, physical mechanism, chemistry, exploration by geo physical and geochemical techniques, conceptual and mathematical modeling, analytical and numerical solution methods, engineering measures of combating seawater intrusion, management strategies, and experience learned from case studies. By presenting this fairly comprehensive volume on the state-of-the-art of knowledge and ex perience on saltwater intrusion, we hoped to transfer this body of knowledge to the geologists, hydrologists, hydraulic engineers, water resources planners, managers, and governmental policy makers, who are engaged in the sustainable development of coastal fresh ground water resources.
Author: Habil. Jörg Lewandowski
Publisher: MDPI
ISBN: 3039289055
Category : Science
Languages : en
Pages : 438
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Book Description
Recent years have seen a paradigm shift in our understanding of groundwater–surface water interactions: surface water and aquifers were long considered discrete, separate entities; they are now understood as integral components of a surface–subsurface continuum. This book provides an overview of current research advances and innovative approaches in groundwater–surface water interactions. The 20 research articles and 1 communication cover a wide range of thematic scopes, scales, and experimental and modelling methods across different disciplines (hydrology, aquatic ecology, biogeochemistry, and environmental pollution). The book identifies current knowledge gaps and reveals the challenges in establishing standardized measurement, observation, and assessment approaches. It includes current hot topcis with environmental and societal relevance such as eutrophication, retention of legacy, and emerging pollutants (e.g., pharmaceuticals and microplastics), urban water interfaces, and climate change impacts. The book demonstrates the relevance of processes at groundwater–surface water interfaces for (1) regional water balances and (2) quality and quantity of drinking water resources. As such, this book represents the long-awaited transfer of the above-mentioned paradigm shift in understanding of groundwater–surface water interactions from science to practice.
