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Annual Water Balance Model Based On Generalized Proportionality Relationship And Its Applications
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Book Synopsis Annual Water Balance Model Based on Generalized Proportionality Relationship and Its Applications by : Yin Tang
Download or read book Annual Water Balance Model Based on Generalized Proportionality Relationship and Its Applications written by Yin Tang and published by . This book was released on 2017 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this dissertation research is to derive a type of conceptual models for annual water balance at the watershed scale. The proportionality relationship from the Soil Conservation Service Curve Number method was generalized to annual scale for deriving annual water balance model. As a result, a one-parameter Budyko equation was derived based on one-stage partitioning; and a four-parameter Budyko equation was derived based on two-stage partitioning. The derived equations balance model parsimony and representation of dominant hydrologic processes, and provide a new framework to disentangle the roles of climate variability, vegetation, soil and topography on long-term water balance. Three applications of the derived equations were demonstrated. Firstly, the four-parameter Budyko equation was applied to 165 watersheds in the United States to disentangle the roles of climate variability, vegetation, soil and topography on long-term water balance. Secondly, the one-parameter Budyko equation was applied to a large-scale irrigation region. The historical annual total water storage change were reconstructed for assessing groundwater depletion due to irrigation pumping by integrating the derived equation and the satellite-based GRACE (Gravity Recovery and Climate Experiment) data. Thirdly, the one-parameter Budyko equation was used to model the impact of willow treatment on annual evapotranspiration through a two-year field experiment in the Upper St. Johns River marshes. An empirical relationship between the parameter and willow fractional coverage was developed, providing a useful tool for predicting long-term response of evapotranspiration to willow treatment.
Book Synopsis DEVELOPMENT AND APPLICATION OF A PARSIMONIOUS WATER BALANCE MODEL FOR MEDITERRANEAN CLIMATE CONDITIONS by : Thomas C. Moran
Download or read book DEVELOPMENT AND APPLICATION OF A PARSIMONIOUS WATER BALANCE MODEL FOR MEDITERRANEAN CLIMATE CONDITIONS written by Thomas C. Moran and published by . This book was released on 2017 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: The annual water balance is an important indicator of the hydrologic function and utility of a watershed, and yet there has been relatively sparse research of the special considerations that control the yearly partition of precipitation in a Mediterranean climate (MC) like that of California. In particular, there is a gap in empirical characterization of the annual water balance over a broad collection of watersheds spanning the diverse climate and landscape conditions of the state. This research develops and applies a top-down, parsimonious, physically interpretable water balance model that explicitly accounts for seasonality, a critical climate factor for MC regions. The research was motivated by the observation of a straightforward, linear relationship between total annual precipitation and streamflow for watersheds in the Russian River Basin of northern California. A dataset of monthly water balance variables was developed to meet the criteria of accurate estimations, geographic contiguity, and temporal longevity, continuity, and consistency. Inspection of the long-term water balance for 159 watersheds in the state led to a more general form of the precipitation-streamflow relationship, a segmented linear model. Model parameters were estimated for each watershed via regression of water balance observations using a structural probabilistic model that was resilient to uncertainties in the input data. Model parameter estimates displayed aggregate clustering by prevailing wetness conditions, as well as geographic regionalization. The average predictive uncertainty for gaged watersheds ranged from 50 to 125 mm per year in terms of area-normalized streamflow. Modeled streamflow residuals were used to evaluate historical changes in the water balance, revealing a decreasing trend in the streamflow of most California watersheds during the onset of the climate change era, controlling for precipitation. Sensitivity analysis showed that changes in the seasonality of precipitation and potential evapotranspiration have an order-of-magnitude larger impact on the water balance relative to other climate drivers. Spatial proximity correlation and watershed feature regression both showed promise as methods for estimation of model parameters in ungaged watersheds. The model was also contextualized with regards to the influential Budyko curve. This research demonstrated that a parsimonious and interpretable model was capable of describing the annual water balance for the diverse hydrologic conditions across California. By focusing on the analysis of many watersheds over long timeframes it was possible to characterize and interpret broad trends and patterns that influence the water balance in MC regions.
Book Synopsis Scale Issues in Hydrological Modelling by : J. D. Kalma
Download or read book Scale Issues in Hydrological Modelling written by J. D. Kalma and published by John Wiley & Sons. This book was released on 1995-09-11 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a growing need for appropriate models which address the management of land and water resources and ecosystems at large space and time scales. Theories of non-linear hydrological processes must be extrapolated to large-scale, three-dimensional natural systems such as drainage basins, flood plains and wetlands. This book reports on recent progress in research on scale issues in hydrological modelling. It brings together 27 papers from two special issues of the journal Hydrological Processes. The book makes a significant contribution towards developing research strategies for linking model parameterisations across a range of temporal and spatial scales. The papers selected for this book reflect the tremendous advances which have been made in research into scale issues in hydrological modelling during the last ten years.
Book Synopsis A Continuous Hydrologic Model Structure for Applications at Multiple Time Scales by : Jonathan Griffen
Download or read book A Continuous Hydrologic Model Structure for Applications at Multiple Time Scales written by Jonathan Griffen and published by . This book was released on 2014 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many different controlling factors on the partitioning of rainfall into runoff. However, the influence of each of these controls varies across different temporal scales. Consequently, numerous water balance models have been developed in the literature for application across various time scales. These models are usually developed for a particular time scale so that the controls with the greatest influence on rainfall partitioning are captured. For example, the SCS curve number method was developed to simulate direct runoff at the event scale; the "abcd" model was developed as a monthly water balance model; and the Budyko model was developed for long-term water balance. More recently, the proportionality hypothesis, which traces its origins from the SCS curve number method, has been identified as the commonality between these three hydrologic models, suggesting that this hypothesis may be the unifying principle of hydrologic models across various time scales. The objective of this thesis is to develop a conceptual hydrologic model structure for continuous simulations for multiple time scales. The developed model is applicable to daily, monthly, and annual time scales.
Book Synopsis SCS National Engineering Handbook by :
Download or read book SCS National Engineering Handbook written by and published by . This book was released on 1984 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Heat Balance of the Earth's Surface by : Mikhail Ivanovich Budyko
Download or read book The Heat Balance of the Earth's Surface written by Mikhail Ivanovich Budyko and published by . This book was released on 1958 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hydrogeology, Chemical Weathering, and Soil Formation by : Allen Hunt
Download or read book Hydrogeology, Chemical Weathering, and Soil Formation written by Allen Hunt and published by John Wiley & Sons. This book was released on 2021-04-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explores soil as a nexus for water, chemicals, and biologically coupled nutrient cycling Soil is a narrow but critically important zone on Earth's surface. It is the interface for water and carbon recycling from above and part of the cycling of sediment and rock from below. Hydrogeology, Chemical Weathering, and Soil Formation places chemical weathering and soil formation in its geological, climatological, biological and hydrological perspective. Volume highlights include: The evolution of soils over 3.25 billion years Basic processes contributing to soil formation How chemical weathering and soil formation relate to water and energy fluxes The role of pedogenesis in geomorphology Relationships between climate soils and biota Soils, aeolian deposits, and crusts as geologic dating tools Impacts of land-use change on soils The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals. Find out more about this book from this Q&A with the Editors
Book Synopsis Selected Water Resources Abstracts by :
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1990 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Generalized Streamflow Simulation System by : Robert J. C. Burnash
Download or read book A Generalized Streamflow Simulation System written by Robert J. C. Burnash and published by . This book was released on 1973 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific Investigations Report by : Sharon E. Kroening
Download or read book Scientific Investigations Report written by Sharon E. Kroening and published by . This book was released on 2004 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applications of Soil Physics by : Daniel Hillel
Download or read book Applications of Soil Physics written by Daniel Hillel and published by Elsevier. This book was released on 2012-12-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of Soil Physics deals with the applications of soil physics and covers topics ranging from infiltration and surface runoff to groundwater drainage, evaporation from bare-surface soils, and uptake of soil moisture by plants. Water balance and energy balance in the field are also discussed, along with tillage and soil structure management. The development and extension of Penman's evaporation formula is also described. This book is comprised of 14 chapters and begins with a systematic description of the field-water cycle and its management, with emphasis on infiltration and runoff; redistribution and drainage; evaporation and transpiration; and irrigation and tillage. Subsequent chapters focus on transpiration from plant canopies; freezing phenomena in soils; scaling and similitude of soil-water phenomena; spatial variability of soil physical properties; and movement of solutes during infiltration into homogeneous soil. Concepts of soil-water availability to plants are considered, together with principles of irrigation management and the advantages and limitations of drip irrigation. This monograph is intended for upper-level undergraduate and graduate students of the environmental, engineering, and agronomic sciences.
Book Synopsis Proceedings of the Sixteenth Annual Conference of the Cognitive Science Society by : Ashwin Ram
Download or read book Proceedings of the Sixteenth Annual Conference of the Cognitive Science Society written by Ashwin Ram and published by Routledge. This book was released on 2019-05-23 with total page 1014 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume features the complete text of all regular papers, posters, and summaries of symposia presented at the 16th annual meeting of the Cognitive Science Society.
Book Synopsis Hydrological Data Driven Modelling by : Renji Remesan
Download or read book Hydrological Data Driven Modelling written by Renji Remesan and published by Springer. This book was released on 2014-11-03 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores a new realm in data-based modeling with applications to hydrology. Pursuing a case study approach, it presents a rigorous evaluation of state-of-the-art input selection methods on the basis of detailed and comprehensive experimentation and comparative studies that employ emerging hybrid techniques for modeling and analysis. Advanced computing offers a range of new options for hydrologic modeling with the help of mathematical and data-based approaches like wavelets, neural networks, fuzzy logic, and support vector machines. Recently machine learning/artificial intelligence techniques have come to be used for time series modeling. However, though initial studies have shown this approach to be effective, there are still concerns about their accuracy and ability to make predictions on a selected input space.
Book Synopsis Hydrology and Water Resource Systems Analysis by : Maria A. Mimikou
Download or read book Hydrology and Water Resource Systems Analysis written by Maria A. Mimikou and published by CRC Press. This book was released on 2016-12-01 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrology and water resources analysis can be looked at together, but this is the only book which presents the relevant material and which bridges the gap between scientific processes and applications in one text. New methods and programs for solving hydrological problems are outlined in a concise and readily accessible form. Hydrology and Water Resource Systems Analysis includes a number of illustrations and tables, with fully solved example problems integrated within the text. It describes a systematic treatment of various surface water estimation techniques; and provides detailed treatment of theory and applications of groundwater flow for both steady-state and unsteady-state conditions; time series analysis and hydrological simulation; floodplain management; reservoir and stream flow routing; sedimentation and erosion hydraulics; urban hydrology; the hydrological design of basic hydraulic structures; storage spillways and energy dissipation for flood control, optimization techniques for water management projects; and methods for uncertainty analysis. It is written for advanced undergraduate and graduate students and for practitioners. Hydrologists and water-related professionals will be helped with an unfamiliar term or a new subject area, or be given a formula, the procedure for solving a problem, or guidance on the computer packages which are available, or shown how to obtain values from a table of data. For them it is a compendium of hydrological practice rather than science, but sufficient scientific background is provided to enable them to understand the hydrological processes in a given problem, and to appreciate the limitations of the methods presented for solving it.
Book Synopsis Geological Survey Professional Paper by :
Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1982 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Geological Survey Professional Paper by :
Download or read book U.S. Geological Survey Professional Paper written by and published by . This book was released on 1982 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report RMRS written by and published by . This book was released on 1998 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
