Download or read book Analyzing the Impact of Land Use and Land Cover Change on Ground Water Recharge Using RS and GIS Approach written by K. Ram Mohan Rao and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human beings have exerted large-scale changes on the terrestrial biosphere, primarily through agricultural practices. However, the impacts of such changes on the hydrologic cycle are poorly understood. The purpose of this study is to show the impacts of Land Use and Land Cover (LULC) change on the subsurface portion of the hydrologic cycle by changing groundwater recharge. To analyze these changes in the catchment area and spatial pattern over the time, a set of satellite images was obtained for the years 1973 (MSS), 1986 (TM) and 2000 (ETM), and hydro meteorological data for over 30 years was taken and used for the trend analysis of these factors. It has been observed that the ground water recharge is progressively declining in considerable rate. The decline in the rate of recharge has been treated by analyzing the temporal trend patterns of some of the hydro meteorological elements that have a great impact on groundwater recharge conditions and LULC of the catchment, specially vegetation cover. Trends of these elements are presented in the following way: annual precipitation is slightly decreasing, however, its rate of decline is not comparable with the significant decrease in ground water recharge; the potential evapotranspiration is slightly decreasing that favors recharge; the annual surface runoff of the catchment is appreciably increasing, and the lake level rise shows a highly increasing trend. Based on this results, it is highly recommended to protect the remaining patches of vegetation and apply both physical and biological conservation measures to reclaim the degraded areas.
Download or read book Groundwater Hydraulics written by Kuniaki Sato and published by Springer Science & Business Media. This book was released on 2011-06-28 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The groundwater science and engineering has been closely connected with various fields (1) Groundwater Hydrology, (2) Groundwater Hydraulics or Geohydraulics, (3) Fluid Dynamics in Porous Media, (4) Groundwater Quality Engineering, (5) Soil Physics, and (6) Hydrogeology or Geohydrology. The purpose of the book is to present an update textbook of groundwater hydraulics, which includes all of basic items in above-mentioned fields, to students (of graduate school), researchers and practitioners. The students and beginners who intend to specialize in groundwater hydraulics through one semester will master contents of the book.
Download or read book River Sand Mining Modelling and Sustainable Practice written by Raj Kumar Bhattacharya and published by Springer Nature. This book was released on 2021-07-31 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide demand for sand and gravel is increasing daily, as the need for these materials continues to rise, for example in the construction sector, in land filling and for transportation sector based infrastructural projects. This results in over-extraction of sand from channel beds, and hampers the natural renewal of sediment, geological setup and morphological processes of the riverine system. In India, illegal sand mining (of alluvial channels) and gravel mining (of perennial channels) are two anthropogenic issues that negatively affect the sustainable drainage system. Along the Kangsabati River in India, the consequences of sand mining are very serious. The construction of Mukutmonipur Dam (1958) on the river causes huge sediment deposition along the middle and downstream areas, these same areas are also intensely mined for sand (instream and on the flood plain). Geospatial models are applied in order to better understand the state and the resilience of stream hydraulics, morphological and river ecosystem variables during pre-mining and post-mining stages, using micro-level datasets of the Kangsabati River. The book also includes practicable measures to minimize the environmental consequences of instream mining in respect to optimum sand mining. It discusses the threshold limits of each variable in stream hydraulics, morphological and river ecological regime, and also discusses the most affected variables. Consequently, all outputs will be very useful for students, researchers, academicians, decision makers and practitioners and will facilitate applying these techniques to create models for other river basins.
Download or read book Spatial and Temporal Distribution of Groundwater Recharge in the West Bank Using Remote Sensing and GIS Techniques written by Adla Jamil Khalaf and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Estimating groundwater recharge to aquifer systems is a very important element in assessing the water resources of the West Bank. Of particular interest is the sustainable yield of the aquifers. Previous studies have developed analytical recharge models that are based on the long-term annual rainfall data. These models have been shown to be inadequate and changes over shorter periods, e.g. monthly estimates, must be known in order to study the temporal distribution of recharge. The approach used in this research integrates data derived from satellite images (e.g. land cover, evapotranspiration, rainfall, and digital elevation model) with hydrogeological data in a Geographic Information System (GIS) model to identify and map the surface recharge areas. The Surface Energy Balance Algorithm for Land (SEBAL) is applied to time series of remote sensing MODerate Resolution Imaging Spectroradiometer (MODIS) level 3 data of reflectance and surface temperature measurements to estimate monthly evapotranspiration; precipitation is derived from the monthly data sets of the Tropical Rainfall Measuring Mission (TRMM); runoff is given assumed values of 0.75 mm month-1 and 0.4 mm month-1 for the months of January and February, respectively. Recharge is quantified from November until March by applying the water balance method where evapotranspiration estimates and runoff are subtracted from precipitation. Results show good agreement between data reported in the literature and remote sensing-based analysis. Empirical models that are based on long term rainfall measurements suggest recharge values between 800 and 836 MCM yr-1 while the remote sensing based model results estimate recharge to be 700 MCM yr-1. The Western, North-Eastern, and Eastern Aquifer Basins receive 30%, 23%, and 47% of the total calculated recharge while percentages available in the literature provide 49%, 22%, and 29%, respectively. Discrepancies are mainly due to lack of field data, the overestimation of actual evapotranspiration, and underestimation of TRMM precipitation values. The recharge map indicates that the most effective groundwater recharge zones are located in the north and west of the area that is characterised by thick and well developed soil deposits, heavy vegetation, and a sub-humid climate with the potential of significant recharge occurring during the wet season. Some areas in the east include concentration of drainage and stream flows which increase the ability of to recharge the groundwater system. The least effective areas are in the south and south-west region that is more arid with much less recharge, mainly due to its isolated thin soil deposits. A sensitivity analysis was carried out to demonstrate the impact of land cover change on groundwater and natural recharge. The assessment involved the use of land covers of 1994 and 2004 with the same fixed parameters of evapotranspiration, precipitation, drainage, slope, soil, and geology. Results show a decrease in high and intermediate high recharge areas from 40.25 km2 and 2462.25 km2 in year 1994 to 15.5 km2 and 1994 km2 in 2004, respectively. This illustrates the extent of land cover/land use change influence on recharge and calls for integrated plans and strategies to preserve recharge at least at its current rates.
Download or read book Geospatial Practices in Natural Resources Management written by Pravat Kumar Shit and published by Springer Nature. This book was released on with total page 593 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Landscape Dynamics Soils and Hydrological Processes in Varied Climates written by Assefa M. Melesse and published by Springer. This book was released on 2015-07-21 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents the processes governing the dynamics of landscapes, soils and sediments, water and energy under different climatic regions using studies conducted in varied climatic zones including arid, semi-arid, humid and wet regions. The spatiotemporal availability of the processes and fluxes and their linkage to the environment, land, soil and water management are presented at various scales. Spatial scales including laboratory, field, watershed, river basin and regions are represented. The effect of tillage operations and land management on soil physical characteristics and soil moisture is discussed. The book has 35 chapters in seven sections: 1) Landscape and Land Cover Dynamics, 2) Rainfall-Runoff Processes, 3) Floods and Hydrological Processes 4) Groundwater Flow and Aquifer Management, 5) Sediment Dynamics and Soil Management, 6) Climate change impact on vegetation, sediment and water dynamics, and 7) Water and Watershed Management.
Download or read book Predicting the impact of land cover change on groundwater recharge written by J W. Finch and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater New Advances and Challenges written by Jamila Tarhouni and published by BoD – Books on Demand. This book was released on 2023-11-08 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater is the largest natural resource in the world. The estimation of groundwater resources as well as their sustainable management are challenges for users, practitioners, managers, and decision-makers. These challenges can be solved based on the progress in three domains: (1) data modeling (2) data science, and (3) advanced systems of ground measurement and Earth data. This book contributes to the progress of groundwater characterization by addressing some challenges through applications and discussions of relevant case studies as well as new approaches. It contains six chapters that discuss various approaches and tools used to study and investigate the impacts of climate change and pollution risks. They also present techniques for accessing water that may contribute to sustainable exploitation and management of groundwater resources.
Download or read book Geospatial Technologies for Integrated Water Resources Management written by Bhagwan B. Ghute and published by Springer Nature. This book was released on with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Journal of Advanced Remote Sensing and GIS written by Cloud Publications and published by Cloud Publications. This book was released on 2012-01-01 with total page 3465 pages. Available in PDF, EPUB and Kindle. Book excerpt: International Journal of Advanced Remote Sensing and GIS (IJARSG, ISSN 2320 – 0243) is an open-access peer-reviewed scholarly journal publishes original research papers, reviews, case study, case reports, and methodology articles in all aspects of Remote Sensing and GIS including associated fields. This Journal commits to working for quality and transparency in its publishing by following standard Publication Ethics and Policies.
Download or read book ITJEMAST 10 10 2019 written by and published by International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies. This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: International Transaction Journal of Engineering, Management, & Applied Sciences & Technologies publishes a wide spectrum of research and technical articles as well as reviews, experiments, experiences, modelings, simulations, designs, and innovations from engineering, sciences, life sciences, and related disciplines as well as interdisciplinary/cross-disciplinary/multidisciplinary subjects. Original work is required. Article submitted must not be under consideration of other publishers for publications.
Download or read book Impacts of Landscape Change on Water Resources written by Manoj K. Jha and published by MDPI. This book was released on 2020-11-13 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Changes in land use and land cover can have many drivers, including population growth, urbanization, agriculture, demand for food, evolution of socio-economic structure, policy regulations, and climate variability. The impacts of these changes on water resources range from changes in water availability (due to changes in losses of water to evapotranspiration and recharge) to degradation of water quality (increased erosion, salinity, chemical loadings, and pathogens). The impacts are manifested through complex hydro-bio-geo-climate characteristics, which underscore the need for integrated scientific approaches to understand the impacts of landscape change on water resources. Several techniques, such as field studies, long-term monitoring, remote sensing technologies, and advanced modeling studies, have contributed to better understanding the modes and mechanisms by which landscape changes impact water resources. Such research studies can help unlock the complex interconnected influences of landscape on water resources in terms of quantity and quality at multiple spatial and temporal scales. In this Special Issue, we published a set of eight peer-reviewed articles elaborating on some of the specific topics of landscape changes and associated impacts on water resources.
Download or read book Urban Drought written by Bhaswati Ray and published by Springer. This book was released on 2018-12-30 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents water insecurity issues in urban areas while developing a water security index and explores the innovative approaches to water development and management with examples from Asian cities. The urban water crisis is a global phenomenon, but it is more obvious in the megacities of the developing world. Urban drought, although not a familiar term, will pose a significant threat to humankind in the near future, especially in the context of increasing population in cities. Many cities are already unable to provide safe, clean water for their citizens. Some of the world’s largest cities depend heavily on groundwater for their water supply. It is unlikely that dependence on aquifers, which take many years to recharge, will be sustainable. As urban populations grow, water use will need to shift from agriculture to municipal and industrial uses, making decisions about allocating between different sectors difficult. Inefficient water-use practices by households and industries, fragmented management of water between sectors and institutions, climate-induced water shortages, environmental degradation of water sources, and inadequate use of alternate sources are also issues of major concern. Despite recent advances in the literature, there exists a considerable gap in attempting an integrated water-resource management approach. Covering all aspects of urban drought and water insecurity, this book is a valuable resource for students, researchers, academics, policy makers, and development practitioners.
Download or read book Environmental Hydrogeology written by Philip E. LaMoreaux and published by CRC Press. This book was released on 2008-10-21 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Headlines continue to blare news of climate change, tangential catastrophic events, and dwindling energy resources. Written by respected practitioners, and geared to practitioners and students, Environmental Hydrogeology, Second Edition explores the role that hydrogeology can play in solving challenging environmental problems. New in the Second Edi
Download or read book Geospatial Technology for Water Resource Applications written by Prashant K. Srivastava and published by CRC Press. This book was released on 2016-07-26 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book advances the scientific understanding, development, and application of geospatial technologies related to water resource management. It presents recent developments and applications specifically by utilizing new earth observation datasets such as TRMM/GPM, AMSR E/2, SMOS, SMAP and GCOM in combination with GIS, artificial intelligence, and hybrid techniques. By linking geospatial techniques with new satellite missions for earth and environmental science, the book promotes the synergistic and multidisciplinary activities of scientists and users working in the field of hydrological sciences.
Download or read book Climate Change and Groundwater written by Walter Dragoni and published by Geological Society of London. This book was released on 2008 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a general consensus that for the next few decades at least, the Earth will continue its warming. This will inevitably bring about serious environmental problems. For human society, the most severe will be those related to alterations of the hydrological cycle, which is already heavily influenced by human activities. Climate change will directly affect groundwater recharge, groundwater quality and the freshwater-seawater interface. The variations of groundwater storage inevitably entail a variety of geomorphological and engineering effects. In the areas where water resources are likely to diminish, groundwater will be one of the main solutions to prevent drought. In spite of its paramount importance, the issue of 'Climate Change and Groundwater' has been neglected. This volume presents some of the current understanding of the topic.
Download or read book Groundwater written by Vijay P Singh and published by Springer. This book was released on 2018-01-14 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book comprises the select proceedings of the International Conference on Water, Environment, Energy and Society. The book is divided into three parts. The first part deals with some aspects of groundwater focusing on delineation of groundwater zones, spatio-temporal variability of groundwater, and aquifer vulnerability. The second part is on some aspects of groundwater recharge, dealing with recharge sources, management of recharge and recharge technology, change of land use / land cover on groundwater recharge. The concluding part covers groundwater quality, encompassing causes and sources of pollution, leachate migration, river bank filtration, variability of quality, assessment and management of quality. The book will be of interest to researchers and practitioners in the field of water resources, hydrology, environmental resources, agricultural engineering, watershed management, earth sciences, as well as those engaged in natural resources planning and management. Graduate students and those wishing to conduct further research in water and environment and their development and management will also find the book to be of value.
