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Spatiotemporal Analysis Of Extreme Hydrological Events

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Spatiotemporal Analysis of Extreme Hydrological Events

Spatiotemporal Analysis of Extreme Hydrological Events Book
Author : Gerald Corzo,Emmanouil Varouchakis
Publisher : Elsevier
Release : 2018-11-20
ISBN : 0128117311
Language : En, Es, Fr & De

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Book Description :

Spatio-temporal Analysis of Extreme Hydrological Events offers an extensive view of the experiences and applications of the latest developments and methodologies for analyzing and understanding extreme environmental and hydrological events. The book addresses the topic using spatio-temporal methods, such as space-time geostatistics, machine learning, statistical theory, hydrological modelling, neural network and evolutionary algorithms. This important resource for both hydrologists and statisticians interested in the framework of spatial and temporal analysis of hydrological events will provide users with an enhanced understanding of the relationship between magnitude, dynamics and the probability of extreme hydrological events. Presents spatio-temporal processes, including multivariate dynamic modelling Provides varying methodological approaches, giving the readers multiple hydrological modelling information to use in their work Includes a variety of case studies making the context of the book relatable to everyday working situations

Data Mining and Spatiotemporal Analysis of Extreme Precipitation

Data Mining and Spatiotemporal Analysis of Extreme Precipitation Book
Author : Josiah Daniel Smith
Publisher : Unknown
Release : 2005
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Abstract: The Prairie Pothole Region in the Northern Great Plains (PPR-NGP) of the United States frequently fluctuates from drought to deluge. The historical hydrologic record for this region reveals periods of intense, prolonged drought intermingled with rapid and destructive flooding. Drought or flooding is initiated and sustained by deficit or surplus precipitation, respectively. The weather events that accompany these disasters are characterized by large spatial and temporal variations from normal in the frequency and intensity. The unique hydrology and geology of the region makes the PPR-NGP highly sensitive to these weather perturbations. The future looks to bring more warming and thus more intense precipitation to the region. As the frequency of extreme precipitation events rises, the magnitude and occurrence of floods and droughts will be elevated. The objective of this research was to determine the factors controlling precipitation trends, drought, and flooding in the study area. Also, the weather conditions preceding the disastrous events were observed and characterized. The analysis was focused on the effects of varying precipitation intensity, frequency, and antecedent conditions as they pertain to PPR-NGP drought and Red River flooding. The results may be applied to better predict the future trends of flood and drought response to extreme precipitation. Data mining was performed on available weather station observations to extract significant information and use it to derive valuable insight into PPR-NGP drought and flooding behavior. Hydrometeorological indices calculated over various timescales were applied to assess the intensity and frequency of rainfall, the change in snow depths, and the deviation from normal precipitation. Flood discharge hydrographs were classified based on shape parameters and matched to precipitation characteristics. Spatiotemporal and statistical operations were employed to determine the controlling factors of precipitation trends, drought, summer floods, and spring floods in the PPR-NGP and Red River Basin. Current precipitation and stream flow trends indicate the potential for enhanced flood and drought activity. Precipitation intensity and frequency are ascending, but the intensity is increasing more than the frequency of monthly events. The result is that Red River discharge rates are rising six times faster than total precipitation over the basin. The rise in stream flow rates can be explained by elevated precipitation intensity and to some extent precipitation frequency during key flood months. However, the most critical flood month of April has a decreasing total precipitation trend and yet the highest rise in discharge rate. These trends come about because overall fall and winter precipitation rates are on the rise. The antecedent precipitation is stored on and in the frozen ground until released by the spring thaw, which usually takes place in April. Thus, the risk for larger April floods is affected not by a single month but by a half year's worth of increasing precipitation conditions. Large fluctuations in monthly drought conditions were determined to be equally controlled by both the frequency and intensity of precipitation events. Extreme drought took a minimum of two to three months both to develop and dissipate from a semi-arid state. Though, the biggest shifts in month-to-month conditions were observed when both precipitation intensity and frequency were well above or below normal over the same area. So the onset or end of an extreme drought took place more rapidly when the intensity and frequency changes were great and harmonized. Similarly, the spatial extent of the most intense (on average) drought cells was surprisingly little, because the overlap of large precipitation intensity and frequency shifts typically occurred over a small area. Also, the drought duration usually increased when severity reached a higher level, so that multiple months of moderate drought reduced the overall intensity for all but the most severe parts of the cells. The intensity of precipitation events was the main controlling factor in Red River summer flood occurrence and magnitude. Antecedent conditions were not essential to the development of summer floods. Conditions were often near normal prior to a flood because more of the normal rain fell in a fewer number of more intense events. Conversely, the magnitude and occurrence of spring floods was controlled by antecedent precipitation and fast snow melt rates. A significant snow pack was observed prior to both major and minor floods, while a non-flood year had little snow pack over the basin. Fall soil moisture, winter snowfall, and a fast rate of stored water release all had to be present at sufficient levels to trigger a large flood response.

Ecological Modelling of River Wetland Systems

Ecological Modelling of River Wetland Systems Book
Author : Maria Gabriela Alvarez Mieles
Publisher : CRC Press
Release : 2019-05-14
ISBN : 1000527468
Language : En, Es, Fr & De

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Book Description :

Around 6% of the Earth's land surface is covered by wetlands. Wetlands play a key role in hydrological and biogeochemical cycles, delivering multiple benefits to society: sources of water supply, flood regulation, water purification, agriculture, fisheries, and biodiversity. Hence, wetland systems are of immense socio-economic as well as ecological importance. In this research, the focus was on the Abras de Mantequilla (AdM) wetland in the tropical coastal region of Ecuador, a RAMSAR site and case study area for the EU-FP7 WETwin project. The research in this thesis involves a combination of field data collection, multivariate analysis techniques, as well as numerical modelling studies. The goal was to explore the effects of changes in hydrological forcing on the hydrodynamic and ecohydraulic responses of the wetland. The study aims to contribute to the understanding of how a tropical river-wetland system functions in terms of hydrodynamics, water quality, primary production, and biotic communities. Spatial patterns of biotic communities and environmental variables are obtained as well as spatio-temporal variability of hydrodynamics, water quality, primary productivity and fish habitat-suitability conditions. In data scarce areas and countries with financial constraints, the combination of field measurements with numerical models was extremely useful and relevant, confirming that these techniques complement each other in obtaining a better understanding of the dynamics of freshwater river–wetland systems. Studies like the present research can be used to enhance awareness about the environmental services of wetlands and stimulate cooperation between all stakeholders in order to achieve more sustainable wetland management.

Extreme Hydrological Events

Extreme Hydrological Events Book
Author : Zbigniew Kundzewicz
Publisher : Unknown
Release : 1993
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Extreme Hydrological Events book written by Zbigniew Kundzewicz, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Guide to Geography Programs in the Americas

Guide to Geography Programs in the Americas Book
Author : Anonim
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Geographia Polonica

Geographia Polonica Book
Author : Anonim
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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From Headwaters to the Ocean

From Headwaters to the Ocean Book
Author : Makoto Taniguchi,William C. Burnett,Yoshihiro Fukushima,MARTIN HAIGH,Yu Umezawa
Publisher : CRC Press
Release : 2008-09-11
ISBN : 0415472792
Language : En, Es, Fr & De

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Book Description :

The vulnerability of water resources due to climate change and human activities is globally increasing. The phenomenon of hydrological change is complicated because of the combinations and interactions between natural climate fluctuation, global warming and human activities including changes in land utilization. The impact areas of hydrological changes are also not only within the basin, but reach to the ocean through coastal water exchanges. This book presents contributions focused on integrated water management from headwater to the ocean in a time of climate change and increasing population.

Chronique de l U G G I

Chronique de l U G G I  Book
Author : International Union of Geodesy and Geophysics
Publisher : Unknown
Release : 1993
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Natural Hazards Observer

Natural Hazards Observer Book
Author : Anonim
Publisher : Unknown
Release : 1993
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Annales Geophysicae

Annales Geophysicae Book
Author : Anonim
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Water Resources Research in Northwest China

Water Resources Research in Northwest China Book
Author : Yaning Chen
Publisher : Springer Science & Business Media
Release : 2014-03-23
ISBN : 940178017X
Language : En, Es, Fr & De

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Book Description :

This book examines the possible impacts of climate change on hydrology and water resources in the vast arid region of Northwest China, which is one of the world’s largest arid places. The first chapter offers an introductory discussion of the physical geography and socioeconomic conditions in the region. Chapters 2 through 7 discuss the climate system and hydrologic system changes in the region, and assess some implications of these changes in relation to potential evapotranspiration, the hydrological cycle and spatiotemporal variations of the snow cover and glaciers as measured via remote sensing, geographic information systems, and statistical analysis. Chapters 8 and 9 focus on model description and experimental design for interpreting the hydro-climatic process, emphasizing the integration of water, climate, and land ecosystems through field observations and computer-based simulations. Chapter 10 examines some extreme hydrological events and presents a study using the historical trend method to investigate the spatial and temporal variability of changing temperature and precipitation extremes in the hyper-arid region of Northwest China. A concluding chapter discusses possible strategies for sustainable watershed management. The contributors are acknowledged experts who bring broad, relevant experience on water resources research in China’s cold and arid regions. The lessons of this volume will prove useful for understanding arid areas elsewhere in the world.

Abstracts for the AGU Western Pacific Geophysics Meeting

Abstracts for the AGU Western Pacific Geophysics Meeting Book
Author : Anonim
Publisher : Unknown
Release : 2008
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Soils and Fertilizers

Soils and Fertilizers Book
Author : Anonim
Publisher : Unknown
Release : 1998
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Contributions to Geophysics Geodesy

Contributions to Geophysics   Geodesy Book
Author : Anonim
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Agrindex

Agrindex Book
Author : Anonim
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Diagnostic Hydrologic Studies of the Continental United States

Diagnostic Hydrologic Studies of the Continental United States Book
Author : Alexandre K. Guetter,Konstantine P. Georgakakos,Daniel R. Cayan
Publisher : Unknown
Release : 1994
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Download Diagnostic Hydrologic Studies of the Continental United States book written by Alexandre K. Guetter,Konstantine P. Georgakakos,Daniel R. Cayan, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Encyclopedia of hydrological sciences

Encyclopedia of hydrological sciences Book
Author : Malcolm G. Anderson
Publisher : Unknown
Release : 2005
ISBN : 9780471491033
Language : En, Es, Fr & De

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Book Description :

Download Encyclopedia of hydrological sciences book written by Malcolm G. Anderson, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Handbook of Applied Hydrology Second Edition

Handbook of Applied Hydrology  Second Edition Book
Author : Vijay P. Singh
Publisher : McGraw Hill Professional
Release : 2016-03-07
ISBN : 0071835105
Language : En, Es, Fr & De

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Book Description :

Fully Updated Hydrology Principles, Methods, and Applications Thoroughly revised for the first time in 50 years, this industry-standard resource features chapter contributions from a “who’s who” of international hydrology experts. Compiled by a colleague of the late Dr. Chow, Chow’s Handbook of Applied Hydrology, Second Edition, covers scientific and engineering fundamentals and presents all-new methods, processes, and technologies. Complete details are provided for the full range of ecosystems and models. Advanced chapters look to the future of hydrology, including climate change impacts, extraterrestrial water, social hydrology, and water security. Chow’s Handbook of Applied Hydrology, Second Edition, covers: · The Fundamentals of Hydrology · Data Collection and Processing · Hydrology Methods · Hydrologic Processes and Modeling · Sediment and Pollutant Transport · Hydrometeorologic and Hydrologic Extremes · Systems Hydrology · Hydrology of Large River and Lake Basins · Applications and Design · The Future of Hydrology

Agronomie

Agronomie Book
Author : Anonim
Publisher : Unknown
Release : 1998
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Journal of Hydrometeorology

Journal of Hydrometeorology Book
Author : Anonim
Publisher : Unknown
Release : 2007
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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