Download or read book Improved Understanding of the Climatic and Anthropogenic Drivers of Groundwater Depletion and Recovery in California s Central Valley written by Sarfaraz Alam and published by . This book was released on 2021 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: The role of climatic and anthropogenic drivers in groundwater storage depletion and recovery in California's Central Valley has been investigated. Specifically, the dissertation addresses three research questions: (1) How does climate change impact the groundwater storage? (2) Can managed aquifer recharge (MAR) mitigate groundwater overdraft? (3) How much of the drought-caused groundwater overdraft in Central Valley has recovered during the post-drought years and what is the role of climate and water management in the fast versus slow post-drought overdraft recovery? In the first part of the dissertation, integrated hydrologic models have been simulated to predict future groundwater storage changes under multiple climate change scenarios and to evaluate the relative contribution of crop water use and surface water inflow to Central Valley regions. It is shown that climate change will accelerate groundwater depletion in the future and an increase in future crop water use will be the dominant cause of future groundwater decline without mitigation measure. In the second part, the impact of large-scale MAR implementation on groundwater overdraft recovery, flood peak, and low flow have been investigated via numerical experiments. It is shown that MAR has limited capacity to recovery historical groundwater overdraft due to lack of surface water availability in the southern Central Valley (i.e., San Joaquin and Tulare regions). Delivering excess surface water from the delta to the Tulare and San Joaquin region can significantly solve the groundwater overdraft problem. Moreover, MAR can reduce flood peaks, and increase dry season flow. Finally, an ensemble of groundwater storage change estimates has been made using multiple methods and numerical experiments conducted to understand the role of climate and water management to recover drought-caused groundwater overdraft during post-drought years. The result shows that the Central Valley aquifer is not resilient to drought under existing conditions, and it is very challenging to recover drought-caused groundwater overdraft. However, water management measures that restrict groundwater extraction can significantly reduce the groundwater overdraft recovery time.
Download or read book Ground water Flow in the Central Valley California written by Alex K. Williamson and published by . This book was released on 1989 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Water in the Central Valley California written by G. L. Bertoldi and published by . This book was released on 1991 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Prof. paper 1401-A.
Download or read book Central Valley Project Improvement Act Programmatic Environmental Impact Statement written by and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book California Drought written by Betsy A. Cody and published by DIANE Publishing. This book was released on 2010-10 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: California experienced severe water supply shortages in 2009, which led to economic disruption across the state, incl. losses in agricultural areas in the western portion of the Central Valley ¿ areas already experiencing declines in the housing industry and the economic downturn in general. At the same time, several fish species whose habitat lie at the heart of California¿s water supply system and throughout its northern rivers are in decline and some face the possibility of extinction. This situation too has had economic implications, resulting in job and income losses in northern California. Contents of this report: (1) Intro.; (2) What is Drought?; (3) Drought in California; (4) Regulatory Restrictions Affecting Water Deliveries; (5) California Water Rights. Illus.
Download or read book California s Central Valley Groundwater Study written by and published by . This book was released on 2009 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground water Flow in the Central Valley California written by Alex K. Williamson and published by . This book was released on 1987 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Water in the Central Valley California written by G. L. Bertoldi and published by . This book was released on 1991 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drought Water Law and the Origins of California s Central Valley Project written by Tim Stroshane and published by University of Nevada Press. This book was released on 2016-10-27 with total page 429 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an account of how water rights were designed as a key part of the state’s largest public water system, the Central Valley Project. Along sixty miles of the San Joaquin River, from Gustine to Mendota, four corporate entities called “exchange contractors” retain paramount water rights to the river. Their rights descend from the days of the Miller & Lux Cattle Company, which amassed an empire of land and water from the 1850s through the 1920s and protected these assets through business deals and prolific litigation. Miller & Lux’s dominance of the river relied on what many in the San Joaquin Valley regarded as wasteful irrigation practices and unreasonable water usage. Economic and political power in California’s present water system was born of this monopoly on water control. Stroshane tells how drought and legal conflict shaped statewide economic development and how the grand bargain of a San Joaquin River water exchange was struck from this monopoly legacy, setting the stage for future water wars. His analysis will appeal to readers interested in environmental studies and public policy.
Download or read book Central Valley Basin written by United States. Bureau of Reclamation and published by . This book was released on 1949 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Groundwater Investigations in the Central Valley written by United States. Bureau of Reclamation and published by . This book was released on 1950 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling the Impacts of Climate Change on Hydrology and Agricultural Pollutant Runoff in California s Central Valley written by Darren L. Ficklin and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Soil and Water Assessment Tool (SWAT) and HYDRUS were used to assess the impact of climate change on the hydrologic cycle (streamflow, surface runoff, groundwater recharge, evapotranspiration, and irrigation water use) and agricultural pollutant runoff (sediment, nitrate, phosphorus, chlorpyrifos, and diazinon) in the Sacramento and San Joaquin River watersheds in California's Central Valley. Five separate studies were constructed. For the first three studies, hydrological responses were modeled in the San Joaquin River watershed using variations of atmospheric CO2 (550 and 970 ppm), temperature (+1.1 and +6.4°C), and precipitation (0%, ±10%, and ±20%) based on Intergovernmental Panel on Climate Change projections. The fourth study used a calibration and an uncertainty analysis technique for the calibration of the Sacramento River watershed. This study confirmed that SWAT was able to capture the large amount of uncertainty within the Sacramento River watershed and successfully simulate streamflow, sediment, nitrate, chlorpyrifos and diazinon loads. The final study used a novel stochastic climate change analysis technique to bracket the 95% confidence interval of potential climate changes. For all studies, increases in precipitation generally changed the hydrological cycle and agricultural runoff proportionally, where increases in precipitation resulted in increases in surface runoff and thus agricultural runoff and vice-versa. Also, for all studies, increasing temperature caused a temporal shift in plant growth patterns and redistributed evapotranspiration and irrigation water demand earlier in the year. Increasing atmospheric CO2 resulted in watershed-wide decreases in evapotranspiration, therefore increasing water yield and streamflow while concurrently decreasing irrigation water use. This research improves the understanding between climate change and hydrology and agricultural pollutant runoff within the Central Valley of California. Theses climate change analyses may be used by water resource managers to evaluate the potential effects of climate change.
Download or read book Sustainable Water written by Allison Lassiter and published by Univ of California Press. This book was released on 2015-07-24 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water scarcity, urban population growth, and deteriorating infrastructure are impacting water security around the globe. Struggling with the most significant drought in its recorded history, California faces all of these challenges to secure reliable water supplies for the future. The unfolding story of California water includes warnings and solutions for any region seeking to manage water among the pressures of a dynamic society and environment. Written by leading policy makers, lawyers, economists, hydrologists, ecologists, engineers, and planners, Sustainable Water reaches across disciplines to address problems and solutions for the sustainable use of water in urban areas. The solutions and ideas put forward in this book integrate water management strategies to increase resilience in a changing world. Contributors: John T. Andrew, Carolina Balazs, Celeste Cantú, Juliet Christian-Smith, Matthew Deitch, Caitlin Dyckman, Howard Foster, Julian Fulton, Peter Gleick, Brian E. Gray, Ellen Hanak, Maurice Hall, Michael Hanemann, Sasha Harris-Lovett, Matthew Heberger, G. Mathias Kondolf, Jay Lund, Damian Park, Kristen Podolak, John Radke, Isha Ray, David Sedlak, Fraser Shilling, Daniel Wendell, Robert Wilkinson, Cleo Woelfle-Erskine, Sarah Yarnell
Download or read book Evaluation of Central Valley Project Water Supply and Delivery Systems written by Jeff Sandberg and published by . This book was released on 1991 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 Climate Change Effects on Groundwater Resources written by Holger Treidel and published by CRC Press. This book was released on 2011-12-02 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is expected to modify the hydrological cycle and affect freshwater resources. Groundwater is a critical source of fresh drinking water for almost half of the world’s population and it also supplies irrigated agriculture. Groundwater is also important in sustaining streams, lakes, wetlands, and associated ecosystems. But despite this, knowledge about the impact of climate change on groundwater quantity and quality is limited. Direct impacts of climate change on natural processes (groundwater recharge, discharge, storage, saltwater intrusion, biogeochemical reactions, chemical fate and transport) may be exacerbated by human activities (indirect impacts). Increased groundwater abstraction, for example, may be needed in areas with unsustainable or contaminated surface water resources caused by droughts and floods. Climate change effects on groundwater resources are, therefore, closely linked to other global change drivers, including population growth, urbanization and land-use change, coupled with other socio-economic and political trends. Groundwater response to global changes is a complex function that depends on climate change and variability, topography, aquifer characteristics, vegetation dynamics, and human activities. This volume contains case studies from diverse aquifer systems, scientific methods, and climatic settings that have been conducted globally under the framework of the UNESCO-IHP project Groundwater Resources Assessment under the Pressures of Humanity and Climate Change (GRAPHIC). This book presents a current and global synthesis of scientific findings and policy recommendations for scientists, water managers and policy makers towards adaptive management of groundwater sustainability under future climate change and variability.
Download or read book Water Development and Management in the Central Valley of California and the Public Trust written by Felix E. Smith and published by . This book was released on 1986 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
