Hydrologi og hydrosfæren

This book provides information on sustainable water resource management strategies that present innovative ways to conserve both quality and quantity of water in developing countries. The book comprises of 24 chapters contributed by authors from 14 countries, namely, Cameroon, China, Cyprus, India, Indonesia, Italy, Namibia, the Netherlands, Norway, Portugal, South Africa, the United Kingdom, the United States of America and Zimbabwe. This book will be of great interest to researchers, practitioners, water resource managers, policy and decision makers, international institutions, governmental and non-governmental organizations, educators, as well as students.

"Variability of Coastal Current" is a comprehensive book written by D Soum, which provides an in-depth analysis of the coastal current and its variability. The book covers various aspects of oceanography, including the continental slope and shelf, thermocline, and water masses. The author examines the influence of monsoon winds on the coastal currents, eddies, upwelling, and water properties such as temperature and salinity. The book explores the dynamics of the coastal current and its circulation within the Arabian Sea, Bay of Bengal, and the Indian Ocean. The author describes the physical processes, mesoscale and submesoscale features, and the impact of coastal upwelling, cyclonic, and anticyclonic eddies on the current. The book also discusses the use of remote sensing and satellite observations in studying the variability of the current and the seasonal changes. The author highlights the importance of understanding the variability of the Bay of Bengal coastal current in the coastal zone and its impact on sea level, winds, currents, and tides. The book also draws comparisons with other eastern boundary currents such as the Benguela Current, Brazil Current, California Current, Canary Current, Somali Current, Leeuwin Current, and Agulhas Current. Overall, "Variability of Coastal Current" provides a comprehensive overview of the variability of the Bay of Bengal coastal current and its significance in oceanography. The book is an excellent resource for researchers, students, and professionals interested in coastal oceanography and the dynamics of eastern boundary currents.

The city of Leh is located in the high mountain desert of Ladakh in the Indian Himalayas and access to water has always been limited there. In recent years, the town has experienced high rates of urbanisation on the one hand, and tourist numbers have increased exponentially on the other, which has implications for the water supply of the people living there. Through several years of on-site research, challenges on various levels were documented and current governance approaches were analysed. This research forms the basis for future approaches to sustainable development.

As human activities have spread, taking up more of the earth's surface, we have unintentionally disrupted the water cycle with consequences on our planet's ecosystem. We can reverse this, particularly through regenerative agriculture. There is a lot of talk about the role of carbon in climate change, but the importance of water is less well known. Intervention at the level of the water cycle could be the fastest way to have an impact and ensure our food security on the planet.

Grand Cayman, Little Cayman, and Cayman Brac are, in reality, the summits of independent fault blocks that rise from the depths of the Caribbean Sea. This book traces the geological evolution of these islands over the last 30 to 35 million years. The balance between deposition of carbonate sediments and karst development of the exposed land was dictated by the interaction between ever-changing sea levels and vertical tectonic movement of the fault blocks. Today, drinking water needed for the ever-increasing populations of the islands is supplied largely by desalinization plants that are located in accord with a detailed knowledge of the bedrock.This book is based on an extensive data base that has been assembled over the last 40 years of field work and laboratory analyses. Noteworthy aspects of this database include:Approximately 60 visits to the islands over last 40 years - sampling and documentation of virtually every accessible outcrop on the islands (including some that no longer exist). Most samples have been fully documented petrographically and geochemically.Data from 120 wells that have been drilled to depths up to 245 m (most less than 125 m). Wells have been cored and/or chip sampled. Full documentation of drilling histories, XRD analyses of samples, extensive geochemical analyses for major and minor elements, stable isotopes, 87Sr/86Sr ratios, and Rare Earth Elements from numerous samples.Mapping and sampling of modern sediments, including sediment cores, from most of the lagoons around Grand Cayman.Extensive thin section petrography, scanning electron microscope, and electron microprobe analyses of the dolostones and limestones that form the bedrock of the islands.Samples and data collected from numerous caves on Grand Cayman and Cayman Brac have been used to track their developmental history.Detailed analyses of phosphates collected from Little Cayman.Detailed analyses of terra rossa collected from each of the islands.

The book provides a characteristic of sulfate karst, the features of its distribution and development in the Perm region, based on their own research and generalization of data accumulated in recent years. An updated zoning of the territory is given, partly based on the use of GIS technologies. This book also offers a detailed description of areas with characteristics of geological and hydrogeological conditions for the development of karst and karst phenomena. Besides, it also provides a detailed description of a number of caves, information about specially protected natural areas associated with sulfate karst and new unique objects that need protection. The book describes the influence of karst on economic activity and the ecological situation.The publication is intended for geologists, geographers, ecologists, karst scientists, speleologists, local historians, teachers and students of specialties related to earth sciences, as well as a wide range of karst and cave enthusiasts.

This book addresses the various factors affecting fluvial systems, the processes governing them, system responses arising from human-nature interventions, and geospatial and geo-ecological modeling to understand system behaviour better and restore degraded ecosystems around the globe. Thanks to their hydrological and agro-ecological advantages, humans have settled along riverbanks since the dawn of civilization. Thus, the ancient "e;ecumene"e; (settlements) were located near major rivers worldwide. This legacy of river-based civilizations continues to this day in many forms. However, in the course of the 'Anthropocene' era, countless fluvial systems have been altered by human interventions in the form of large-scale dams and barrages, changes in land use and land cover, road-stream crossings, mining of sand and gravel, mushrooming of brickfield, expansion of modern agriculture, industrial growth, and urbanization. Thus, the present-day development pattern threatens fluvial systems, especially riverine morphology and ecosystems. In brief, human-induced morphological changes, water pollution, eutrophication, and related damages to aquatic organisms are the major threats to fluvial systems. Thus, maintaining the 'environmental flow' of the world's major rivers to preserve the proper functioning of riverine ecosystems and promote sustainable development is a global challenge.

This book presents an exploration of linkages among soil-water, agriculture, and climate change with a special focus on thematic areas for assessment, mitigation, and management of natural resources under climate change conditions. This book covers advances in modelling approaches, including machine learning (ML)/ artificial intelligence (AI) applications; GIS and remote sensing; sensors; impacts of climate change on agriculture; subsurface water; contaminants; and socio-economic impacts, which are lacking in a more comprehensive manner in the previous titles. This book encompasses updated information as well as future directions for researchers working in the field of management of natural resources. The goal of this book is to provide scientific evidence to researchers and policymakers and end-to-end value chain practitioners which may help in reducing the overall adverse impacts of climate change on water resources and the related mitigation strategies. This book focuses on the knowledge, modern tools, and techniques, i.e., machine learning, artificial intelligence, etc. for soil-water, agriculture, and climate change. Further, nature-based solutions for management of natural resources with special targets on contaminants, extreme events, disturbances, etc. will be targeted. The book provides readers with the enhanced knowledge for application of engineering principles and economic and regulatory constraints to determine a soil-water, agriculture production action strategy, and select appropriate technologies to implement the strategy for a given data set at a site. It would also cover the application of laboratory, modeling, numerical methods for determination and forecasting of climate change impacts, agriculture production, pollution, soil health, etc. Overall, it provides hydrologists, environmental engineers, administrators, policy makers, consultants, and industrial experts with essential support in effective management of soils health, agricultural productions, and mitigation of extreme climatic events.

This textbook offers a comprehensive and authoritative introduction to the latest analytical methods, tools and techniques used in the marine environment, bringing together the two fields of chemical oceanography and analytical chemistry. Divided into 11 chapters, the book starts with an overview of the main parameters of the marine carbon system, and it covers different sampling strategies used by the marine scientific community, and the different chemical analyses to measure trace metals, radionuclides and organic matter in the marine environment. Particular attention is given to the identification and quantification of marine persistent organic pollutants, emerging organic contaminants and microplastics. Readers will also find accessible explanations and real life examples of the application of remote sensing and in-situ sensing technologies to monitor the marine environment. The textbook finishes with a chapter on data treatment that outlines the relevant statistical approaches, uncertainty estimation and quality assurance of marine chemical measurements. This textbook provides both students and professionals alike with a transdisciplinary and comprehensive foundation for the chemical analysis of our oceans and seas.

This book is an account of Captain Roald Amundsen's scientific expedition to the Arctic Seas in 1901. The expedition was focused on oceanographic observations and the study of the origin of bottom-waters. The author, Fridtjof Nansen, provides a detailed report of the expedition, including its scientific findings and the challenges faced by the team. This book is a valuable resource for scholars of oceanography, Arctic studies, and the history of scientific exploration.This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it.This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This book addresses the Arctic and the northern regions by exploring cold waters and northern seascapes. It focuses on cultural discourses and artistic representations concerning the human experience and imagination of how the Arctic Ocean has been explored and used. It aims to assess what is specific to the northern waters vis-a-vis other sea and water areas in the world. The contextual background is provided by the fundamental shift from terra-based thinking towards aqua-based thinking, including the histories of the northern waters and the innovative ocean studies of the last decades.This book will be of interest to readers in Arctic studies and Sea and Ocean studies (including those with interests in literature, history, cultural and film studies, anthropology and politics), Environmental History and Cultural studies as well as in Russian studies. The book has been assembled with a view towards upper-level undergraduate and post-graduate students and scholars and will also be appropriate for courses in the fields mentioned above. The book will be of interest to specialists working in and with Arctic environmental issues. There is a broad array of international academic networks, environmental, governance and cultural associations outside academia whose members may also find the book of interest.

The book presents the most relevant research of the participants of the VII International Conference of Young Scientists "Complex Investigation of the World Ocean" (CIWO-2023). This conference was held at Saint Petersburg State University in May 15-19, 2023 (Saint Petersburg, Russia). It covers a wide range of fundamental and applied marine and limnology studies combined in eight sections: Ocean Physics, Ocean Biology, Ocean Chemistry, Marine Geology, Marine Geophysics, Marine Ecology and Environmental Management, Physical and Biological interactions (interdisciplinary section), Oceanological Technology and Instrumentation. The aim of this book is to show the relevance of the marine research due to the crucial role of the World Ocean in determining climate change on Earth, huge resources (fish resources, oil, gas and ore deposits, etc.) and intensive development of infrastructure in coastal and offshore zones. All these topics were marked within the framework of realization of the United Nations Decade of Ocean Science for Sustainable Development (2021-2030). The studies presented in the book covers the wide spectrum of different the most important marine and limnology issues: thermohaline structure of water body and interactions between ocean and atmosphere, dynamic of the ocean, marine ice in polar regions, biodiversity of the marine ecosystems, adaptation of marine life to climate changes, geological and geophysical investigations in oil and gas regions, sedimentation, paleooceanology and biostratigraphy, hydrochemistry of estuary regions and carbon fluxes, microplastic pollution of the ocean, eutrophication and etc.

This book covers a wide spectrum of water resources management, including water supply and demand, operation and maintenance of water distribution systems, water quality assessment, impacts of climate change on hydrological extremes, and water governance. Rapid urbanization, industrialization, and population growth are the major factors contributing to a significant rise in water demands across all the sectors in India. Although the Indian Summer Monsoon Rainfall contributes primarily to the available surface and groundwater resources, recurrent non-uniform/erratic rainfall events have resulted in widespread water scarcity. On many occasions, extreme meteorological conditions trigger the severity of water-related disasters such as floods and droughts. The untreated wastewater from domestic and industrial sources discharged through un-engineered means, adds to the issue as it ends up polluting the surface and groundwater resources. 

"From a marine biologist and co-founder of Minorities in Shark Sciences, a ... debut memoir: the uplifting story of a young Black scientist's challenging journey to flourish outside the traditional confines of academia, inspired by her innate connection to nature's most misunderstood animal: the shark"--

This book presents a profile of the majority of hot springs in and around tourist destinations in Nepal.  In particular, there is a focus on  Pokhara, Jumla, the world- famous Annapurna region, Ruby Valley, and Api Nampa Conservation Area.  The chapter on health benefits of mineral hot springs provides a history of hot springs supported by a literature review and case study.   Further chapters explore the direct uses of geothermal energy for various purposes and power generation, together with a section on conventional hydrothermal resources.This book is of interest to the general  public, students, national and international researchers, energy planners, and health professionals.  The book is a valuable tool for sociologists who want to gain insight into the cultural and religious aspects of hot water mineral springs.

This book provides comprehensive studies from Middle East, African countries and Asia including Afghanistan, Algeria, Egypt, India, Iraq, Kyrgyzstan, Tunisia and Turkey on groundwater management, modelling and monitoring. A broad approach such as modelling, artificial intelligence, machine learning, and statistical models was applied in arid and semi-arid areas for management of the groundwater. These new approaches are currently in high demand. The book delves into the applications of these methods and will be a potential asset to the researchers worldwide. The book is a timely publication containing chapters based on primary data or/and extensive review chapters comprising new emerging techniques. Current high-demand research on management through the application of modelling, artificial intelligence and machine learning is the main selling point of this book.

In this thrilling work--a blend of history, science, nature writing, and environmentalism--acclaimed writer James Bradley plunges into the unknown to explore the deepest recesses of the natural world.Seventy-one percent of the earth's surface is ocean. These waters created, shaped, and continue to sustain not just human life, but all life on Planet Earth, and perhaps beyond it. They serve as the stage for our cultural history--driving human development from evolution through exploration, colonialism, and the modern era of global leisure and trade. They are also the harbingers of the future--much of life on Earth cannot survive if sea levels are too low or too high, temperatures too cold or too warm. Our oceans are vast spaces of immense wonder and beauty, and our relationship to them is innate and awe inspired.Deep Water is both a lyrically written personal meditation and an intriguing wide-ranging reported epic that reckons with our complex connection to the seas. It is a story shaped by tidal movements and deep currents, lit by the insights of philosophers, scientists, artists and other great minds. Bradley takes readers from the atomic creation of the oceans, to the wonders within, such as fish migrations guided by electromagnetic sensing. He describes the impacts of human population shifts by boat andspeaks directly and uncompromisingly to the environmental catastrophe that is already impacting our lives. It is also a celebration of the ocean's glories and the extraordinary efforts of the scientists and researchers who are unlocking its secrets. These myriad strands are woven together into a tapestry of life that captures not only our relationship with the planet, but our past, and perhaps most importantly, what lies ahead for us.A brilliant blend of Robert MacFarlane's Underland, Susan Casey's The Underworld, and Simon Winchester's Pacific and The Atlantic, Deep Water taps into the essence of our plant and who we are.

This book presents both updated and new measurements on water resources from selective pilot areas form the Middle East. Demand for water has become very crucial notably in arid and semiarid regions like in the Middle East. The changing climate and the increased population are the most striking challenges on water resources in this region where the largest part of its territory is dry lands and deserts with minimal precipitation and high evaporation rates, and thus, the average per capita of water does not exceed 25 m3/year. This resulted in developing many studies and researches in different Middle East countries to clearly identify and assess the hydrological characteristics of the available water resources and to explore new resources in order to secure balanced water supply/demand. As a first of its type, this book introduces comprehensive knowledge on the successful reports of the use of satellite images in water studies in the Middle East, and the economic value resulted from adopting these techniques. Based on illustrated case-studies the book will represent a significant resource for a large number of experts, academics, researchers, engineers and different-level stakeholders including the decision makers.     

This book presents applications of blockchain technologies to foster sustainable development in the textile and clothing supply chain. The concept of Textiles and Fashion Sustainability has grown to a wider extent today. Among the list of items to achieve Sustainability in Textiles and Fashion, the key element is the traceability of supply chains in terms of mapping and tracing the entire supply chain to ensure sustainable supply chain management. Reliable and transparent, efficient data is one of the crucial requirements for Textiles and Fashion Sustainability in today's advanced industrial context and this is possible in this advanced era by various technological advancements such as Block chain technologies. These days one can see a widespread application of blockchain technology in the Textiles and Clothing sector.  The core competencies of blockchain technology namely transparency, data auditability, privacy, value transfer, and process efficiency and automation are very much essential for achieving the multifold objectives under the theme Textiles and Fashion Sustainability.

This book preserves and scientifically interprets the African foreknowledge on water resources management. It offers insight into the relevance of the traditional knowledge and practices to modern approaches on sustainable water management. The African continent has partially preserved its natural habitat for centuries. In this book, this knowledge is combined with the current scientific understanding. The traditional practices are categorized as: i) water harvesting, ii) water transportation, iii) water storage and conservation, iv) water treatments, v) myths and folk stories about water management or conservation, vi) water resource management systems, and vii) soil-water-forest conservation/management systems sub-topics. The findings presented here are in line with SDG 6, which aims at ensuring availability and sustainable management of water and sanitation for all by the year 2030.

This edited book presents the first collection of case studies and research projects on the sustainable technology of constructed wetlands for wastewater management under hot and arid climates. It is the first such work that summarizes in a single reference the current international experiences and knowledge on the implementation of this nature-based solution under these diverse and often harsh climatic conditions. It covers the relevant gap in the fragmented and limited literature by providing integrated information and documentation on the feasibility of this green technology.The book presents the treatment efficiency of constructed wetland facilities and the research output from 29 different countries across South America, Africa, Asia and Oceania, while it covers various applications such as domestic and municipal wastewater, various industrial effluents and municipal sludge. Many examples and case studies further demonstrate the potential of this technology to contribute to better address the issues of water scarcity and limited fresh water resources through circular management of treated effluents e.g. reuse in irrigation. It also discusses the various challenges and technical aspects that should be considered in such climates, along with the environmental, financial and social benefits of this technology.This work is a useful handbook and guide for professional engineers, practitioners, academics, researchers, students, and water authorities who wish to get a better understanding and first-hand information on the potential of constructed wetlands for cost-effective and sustainable wastewater management in countries with hot and arid climates.

This book is the first comprehensive account of the modern Kenya Rift Valley lakes and their precursor lakes preserved in the sedimentary record. The first part gives the broad geological and environmental background to the Kenya Rift and a history of research. In the second part, each modern lake is described from perspectives of geology, limnology, ecology, sedimentology and late Quaternary history. The fossil lake sediments, some linked to hominin sites, and their paleoenvironmental history are considered in the third part. In the fourth section, the global tectonic, volcanic and climate controls of lake evolution in continental rifts are examined. The last section discusses the resource potential of the lakes and their sediments, and the environmental issues that currently affect the modern lakes. This research-level book (geology, paleoecology) is illustrated throughout by original figures and photographs.

This book deals with topics of current interest, such as climate change, floods, drought, and hydrological extremes. The impact of climate change on water resources is drawing worldwide attention these days, for water resources in many countries are already stressed and climate change along with burgeoning population, rising standard of living, and increasing demand are adding to the stress. Further, river basins are becoming less resilient to climatic vagaries. Fundamental to addressing these issues is hydrological modelling which is covered in these books. Further, integrated water resources management is vital to ensure water and food security. Integral to the management is groundwater and solute transport. The books encompass tools that will be useful to mitigate the adverse consequences of natural disasters. This book provides many new and innovative methods to assess groundwater and estimate water pollution. Groundwater recharge, solute transport, ground water modelling are some of the important variable used to estimate the groundwater movement, hydraulic gradient and pollution movement. The water quality is another important variable of river Ganga and its tributaries in India and other rivers over the globe.  

Groundwater is the world's largest source of fresh water, but its safe and sustainable exploitation remains a challenge. Egypt's Nile Valley aquifer is the most important renewable aquifer, accounting for approximately 85% of total groundwater use in Egypt. Egypt's long-term development and socioeconomic growth in the Nile Valley depends on this groundwater. Concerns about groundwater assessment, quality, management, and sustainability frame the current status of Nile Valley groundwater supplies. Proper knowledge of the current state of the groundwater quantity and quality in the Nile Valley is vital for the development and management of groundwater resources in Egypt. Due to Egypt's water scarcity, the projected decline in Nile River flow due to climate change, and the development of numerous Nile River basin projects, the situation is critical, and the consequences might be severe. Furthermore, Egypt's growing population puts significant strain on groundwater, which is the second most significant freshwater supply next to the surface water supply coming from the Nile River as Egypt's share. Several books on the various aspects of Egypt's water resources have been published, but there is insufficient recent information on groundwater in the Nile Valley aquifer, which is essential for Egyptian populations for domestic and irrigation purposes. As a result, this book on the groundwater in the Nile Valley aquifer emerges to complete the picture of Egypt's water resources as a good example of arid country located in MENA regions with many arid countries. Consequently, the lessons learned from this book could be beneficial to other countries in MENA regions, particularly those in North Africa.

This handbook in two volumes offers a heretofore unavailable compilation of detailed information on foraminifera of the Caspian-Black Sea-Mediterranean Corridors ("e;CORRIDORS"e;), including their taxonomy, ecology, and applications in the study of Quaternary stratigraphy, paleogeographic reconstruction, and environmental stress. This subject is significant in light of the ongoing debates regarding the Flood Hypotheses because foraminifera can provide more information about many of the disputed questions. Foraminifera are highly reliable paleoenvironmental indicators, ubiquitous in marine environments, and taxonomically diverse, which gives them the potential for a wide range of biological responses to varied environmental factors. Their tests are readily preserved and can record evidence of environmental change through time, thus providing historical baseline data even in the absence of background studies. This book presents taxonomic descriptions for about 500 species and subspecies from the Black Sea, Sea of Azov, Caspian Sea, Aral Sea, Sea of Marmara, and the Eastern Mediterranean. This catalogue is supplemented by ecological remarks, stratigraphic distributions, paleogeography, and environmental/paleoenvironmental applications, including responses to environmental stress, e.g., river discharge, pollution by different contaminants, etc. The book will be useful to specialists in Quaternary history of the "e;CORRIDORS"e; as well as those in environmental monitoring and risk assessment. This handbook offers detailed taxonomic descriptions of foraminifera from the Black Sea, Caspian Sea, Sea of Azov, Aral Sea (in Volume 1) and Eastern Mediterranean and Sea of Marmara (in Volume 2).