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Author : Simona Consoli
Publisher :
ISBN 13 : 9789533075129
Total Pages : pages
Book Rating : 4.0/5 (751 download)
Download or read book Evapotranspiration Estimation Using Micrometeorological Techniques written by Simona Consoli and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Richard Werner Heine
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (881 download)
Download or read book Measurement of Evapotranspiration Using Micrometeorological Methods written by Richard Werner Heine and published by . This book was released on 1973 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Giacomo Gerosa
Publisher : BoD – Books on Demand
ISBN 13 : 9533075120
Total Pages : 424 pages
Book Rating : 4.5/5 (33 download)
Download or read book Evapotranspiration written by Giacomo Gerosa and published by BoD – Books on Demand. This book was released on 2011-11-09 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents an overview of the direct measurement techniques of evapotranspiration with related applications to the water use optimization in the agricultural practice and to the ecosystems study. Different measuring techniques at leaf level (porometry), plant-level (sap-flow, lysimetry) and agro-ecosystem level (Surface Renewal, Eddy Covariance, Multi layer BREB), are presented with detailed explanations and examples. For the optimization of the water use in agriculture, detailed measurements on transpiration demands of crops and different cultivars, as well as results of different irrigation schemes and techniques (i.e. subsurface drip) in semi-arid areas for open-field, greenhouse and potted grown plants are presented. Aspects on ET of crops in saline environments, effects of ET on groundwater quality in xeric environments as well as the application of ET to climatic classification are also depicted. The book provides an excellent overview for both, researchers and student,s who intend to address these issues.
Author : Kyaw Tha Paw
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.3/5 (121 download)
Download or read book Developing a New Micrometeorological Method to Estimate the Surface Energy Budget and Evapotranspiration written by Kyaw Tha Paw and published by . This book was released on 1998 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wossenu Abtew
Publisher : Springer Science & Business Media
ISBN 13 : 9400747373
Total Pages : 219 pages
Book Rating : 4.4/5 (7 download)
Download or read book Evaporation and Evapotranspiration written by Wossenu Abtew and published by Springer Science & Business Media. This book was released on 2012-08-28 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a thorough presentation of theoretical and applied aspects of the evaporation and evapotranspiration process supported by data from experimental studies. It is written in a way that the theoretical background of evaporation and evapotranspiration estimation is presented in a simplified manner, comprehensive to most technical readers. The book deals with details of meteorological parameters and monitoring sensors which are needed for estimating evaporation and evapotranspiration. Errors in meteorological parameter measurements are also presented. Estimation errors, strengths, weaknesses and applicability of a wide range of evaporation and evapotranspiration estimation methods are presented along with samples of application to a certain region. Application of newer simpler methods is presented. A new technology, remote sensing application to evaporation and evapotranspiration estimation, is presented. The latest interest in the subject, climate change and evapotranspiration is presented in the last chapter. This book will be beneficial to students, hydrologists, engineers, meteorologists, water managers and others.
Author : Thomas Foken
Publisher : Springer Nature
ISBN 13 : 3030521710
Total Pages : 1761 pages
Book Rating : 4.0/5 (35 download)
Download or read book Springer Handbook of Atmospheric Measurements written by Thomas Foken and published by Springer Nature. This book was released on 2021-11-09 with total page 1761 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical handbook provides a clearly structured, concise and comprehensive account of the huge variety of atmospheric and related measurements relevant to meteorologists and for the purpose of weather forecasting and climate research, but also to the practitioner in the wider field of environmental physics and ecology. The Springer Handbook of Atmospheric Measurements is divided into six parts: The first part offers instructive descriptions of the basics of atmospheric measurements and the multitude of their influencing factors, fundamentals of quality control and standardization, as well as equations and tables of atmospheric, water, and soil quantities. The subsequent parts present classical in-situ measurements as well as remote sensing techniques from both ground-based as well as airborn or satellite-based methods. The next part focusses on complex measurements and methods that integrate different techniques to establish more holistic data. Brief discussions of measurements in soils and water, at plants, in urban and rural environments and for renewable energies demonstrate the potential of such applications. The final part provides an overview of atmospheric and ecological networks. Written by distinguished experts from academia and industry, each of the 64 chapters provides in-depth discussions of the available devices with their specifications, aspects of quality control, maintenance as well as their potential for the future. A large number of thoroughly compiled tables of physical quantities, sensors and system characteristics make this handbook a unique, universal and useful reference for the practitioner and absolutely essential for researchers, students, and technicians.
Author : Xin Li
Publisher : Springer
ISBN 13 : 9783662482964
Total Pages : 0 pages
Book Rating : 4.4/5 (829 download)
Download or read book Observation and Measurement of Ecohydrological Processes written by Xin Li and published by Springer. This book was released on 2019-03-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume will discuss the state of the art of different observation and measurement techniques useful for ecohydrological studies. The techniques cover the entire spectrum of the water-soil-plant-atmosphere continuum. And the other volumes are "Water and Ecosystems", "Water-Limited Environments" and "Integrated Ecohydrological Modeling" etc.
Author : Craig Davies Jackson
Publisher :
ISBN 13 :
Total Pages : 494 pages
Book Rating : 4.E/5 ( download)
Download or read book Evapotranspiration and Recharge on Long Island written by Craig Davies Jackson and published by . This book was released on 1982 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stavros Alexandris
Publisher : BoD – Books on Demand
ISBN 13 : 9535111159
Total Pages : 288 pages
Book Rating : 4.5/5 (351 download)
Download or read book Evapotranspiration written by Stavros Alexandris and published by BoD – Books on Demand. This book was released on 2013-04-30 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evapotranspiration - An Overview contains recent advances in the physics of evaporation and transpiration from a typical experimental site to large scale areas. It incorporates many years of authors experience with the latest research on the methods and the models used worldwide, engaging advanced technology and modern instrumentation. The reader benefits from the in-depth analysis and the diverse sites and settings, where the models, applications and methods are tested. Weather conditions, soil moisture, geology, climatic systems are examined for their role and influence on the theoretical and actual water demand by the atmosphere in the earth's ecosystem. This book not only provides students and scientists with the information to improve the procedures for estimating evapotranspiration, but will also help them to manage and evaluate the observed data.
Author : C. Anthony Federer
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (319 download)
Download or read book Measuring Forest Evapotranspiration written by C. Anthony Federer and published by . This book was released on 1970 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Only the soil-water budget and the micrometeorological methods offer any degree of success in measuring forest evapotranspiration. The author discusses these procedures, pointing out the limitations of the soil-water sampling method, but noting that the micrometeorological approach provdies several related methods that offer the best opportunities for accurately measuring evapotranspiration. These methods - mass transfer, eddy correlation, difference, Bowen ration, and combination - are discussed, but less expensive and more reliable instruments must be developed before they can be used routinely for hydrologic research.
Author : Sumatra Chatterjee
Publisher :
ISBN 13 :
Total Pages : 175 pages
Book Rating : 4.:/5 (1 download)
Download or read book Estimating Evapotranspiration Using Remote Sensing written by Sumatra Chatterjee and published by . This book was released on 2010 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigated water loss by evapotranspiration (ET) from the Palo Verde Irrigation District (PVID) and the Cibola National Wildlife Refuge (CNWR) in southern California bordering the Colorado River collaborating with the United States Bureau of Reclamation (U.S.B.R.). We developed an empirical model to estimate ET for the entire PVID using satellite derived MODIS enhanced vegetation index (EVI), and ground based measurements of solar radiation and vapor pressure. We compared our predictions with U.S.B.R. estimates through statistical cross validation and showed they agree with an error less than 8%. We tested the same model for an alfalfa field inside PVID to check its applicability at a smaller spatial scale. We showed that the same model developed for PVID is the best model for estimating ET for the alfalfa field. We collected data from three Bowen ratio energy balance (BREB) towers installed in the invasive saltcedar (Tamarix spp) dominated riparian zone in the CNWR and a fourth tower in the alfalfa field in PVID. The riparian sites were selected according to different densities of vegetation. We collected data from these sites at various intervals during the period between June 2006 to November 2008. We reduced the errors associated with the Bowen ratio data using statistical procedures taking into account occasional instrument failures and problems inherent in the BREB method. Our results were consistent with vegetation density and estimates from MODIS EVI images. To estimate ET for larger patches of mixed vegetation we modified the crop coefficient equation and represented it in terms of EVI. Using this approach, we scaled the alfalfa field data to the entire PVID and compared the results with U.S.B.R. (2001-2007) estimates. We predicted ET well within the acceptable range established in the literature. We empirically developed ET models for the riparian tower sites to provide accurate point scale ET estimation and scaled for the entire riparian region in CNWR with our modified crop coefficient approach. We investigated the assumptions upon which the Bowen ratio equation is developed. In the presence of turbulence some of the assumptions may not be valid, and the final data may require correction factors.
Author : Viliam Novak
Publisher : Springer Science & Business Media
ISBN 13 : 9400738404
Total Pages : 263 pages
Book Rating : 4.4/5 (7 download)
Download or read book Evapotranspiration in the Soil-Plant-Atmosphere System written by Viliam Novak and published by Springer Science & Business Media. This book was released on 2012-06-25 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evapotranspiration and its components (evaporation and transpiration) as a process is one of the basic terms of Earth's water balance; its importance is accented by the fact that transpiration is the vital element of the biomass production process. The second important property of evapotranspiration is its extreme consumption of solar energy, thus controlling the temperature of the atmosphere and creating favourable conditions for life. Evapotranspiration as an energy consuming process is also the connection between the energy and mass cycles of the Earth. Evapotranspiration is a process performing in the Soil–Plant –Atmosphere System (SPAS); therefore this book is presenting and quantifying it as a catenary process, describing transport of water in the soil, including root extraction patterns and methods of its evaluation. Transport of water through the plant and from the canopy to the atmosphere is also described and quantified. A variety of evapotranspiration (and its components evaporation and transpiration) calculation methods are described, starting from empirical methods up to the most sophisticated ones based on the solution of the transport equations of water and energy in the SPAS. The most important (and widely used) calculation method - modified Penman–Monteith method is described in details, ready to be used with data in the book only. Water balance method of evapotranspiration estimation as well as sap flow method description can be found in the book as well. The book can be used by hydrologists, biologists, meteorologists and other specialists as well as by ecology students. Key themes: soil hydrology – evapotranspiration – hydropedology– plant physiology – water movement in soils – evaporation – transpiration Dr. Viliam Novák is a water resources scientist at the Institute of Hydrology of the Slovak Academy of Sciences in Bratislava (Slovakia).
Author : Jon Eric Ljungkull
Publisher :
ISBN 13 :
Total Pages : 316 pages
Book Rating : 4.:/5 (319 download)
Download or read book An Experimental Investigation of Evapotranspiration Estimation Methods written by Jon Eric Ljungkull and published by . This book was released on 1982 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Amrit Kamila
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783659164187
Total Pages : 100 pages
Book Rating : 4.1/5 (641 download)
Download or read book Satellite Based Evapotranspiration Estimation Using SEBAL Model written by Amrit Kamila and published by LAP Lambert Academic Publishing. This book was released on 2014-02 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evapotranspiration (ET) is an important part in surface energy and water balance. ET is the process where liquid water is converted into water vapor and thus removed from sources such as the soil surface, wet vegetation, pavement, water bodies, etc. Transpiration consists of the vaporization of liquid water within a plant and subsequent loss of water as vapor through leaf stomata. Remote sensing based energy balance models are presently most suited Surface Energy Balance Algorithm for Land (SEBAL), a remote sensing based ET model, was applied to Landsat TM imagery in Bankura district, a tropical region in West Bengal with heterogeneous surface conditions, for the estimation of actual ET. SEBAL model follows an energy balance approach of estimation of ET, when the net radiation, sensible heat flux and soil heat flux are known. Input for SEBAL model includes land surface parameters such as surface temperature, NDVI and albedo.
Author : Daniel Bucur
Publisher : BoD – Books on Demand
ISBN 13 : 9535131737
Total Pages : 118 pages
Book Rating : 4.5/5 (351 download)
Download or read book Current Perspective to Predict Actual Evapotranspiration written by Daniel Bucur and published by BoD – Books on Demand. This book was released on 2017-05-24 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evapotranspiration is the largest outgoing water flux from the Earth's surface; its accurate quantification is critical for the crop development in conditions of the climate changes from recent decades, and it can contribute to a greater understanding of a range of agricultural ecosystem processes. To evaluate the hydric requirements of the crops, it was agreed that they should be reported to a maximum global evapotranspiration called potential evapotranspiration. To estimate this variable, a variety of methods were developed, each with its benefits as well as trade-offs. Their use, however, is laborious due to their complexity and of the large number of parameters required. In this book, specialists' concerns worldwide to develop simple but reliable methodologies - with less data requirement - which will give accurate and appropriate results - are presented. In addition, a study of the physics of the moisture evaporation process from porous media to elucidate what are the mechanisms of moisture migration from granular biopesticides is presented in the last chapter.
Author : Pradeep Wagle
Publisher : MDPI
ISBN 13 : 3039216023
Total Pages : 240 pages
Book Rating : 4.0/5 (392 download)
Download or read book Remote Sensing of Evapotranspiration (ET) written by Pradeep Wagle and published by MDPI. This book was released on 2019-10-11 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evapotranspiration (ET) is a critical component of the water and energy balances, and the number of remote sensing-based ET products and estimation methods has increased in recent years. Various aspects of remote sensing of ET are reported in the 11 papers published in this book. The major research areas covered by this book include inter-comparison and performance evaluation of widely used one- and two-source energy balance models, a new dual-source model (Soil Plant Atmosphere and Remote Sensing Evapotranspiration, SPARSE), and a process-based model (ETMonitor); assessment of multi-source (e.g., remote sensing, reanalysis, and land surface model) ET products; development or improvement of data fusion frameworks to predict continuous daily ET at a high spatial resolution (field-scale or 30 m) by fusing the advanced spaceborne thermal emission reflectance radiometer (ASTER), the moderate resolution imaging spectroradiometer (MODIS), and Landsat data; and investigating uncertainties in ET estimates using an ET ensemble composed of several land surface models and diagnostic datasets. The effects of the differences between ET products on water resources and ecosystem management were also investigated. More accurate ET estimates and improved understanding of remotely sensed ET products are crucial for maximizing crop productivity while minimizing water losses and management costs.
Author : G. W. Kite
Publisher : IWMI
ISBN 13 : 9290904127
Total Pages : 41 pages
Book Rating : 4.2/5 (99 download)
Download or read book Comparing Estimates of Actual Evapotranspiration from Satellites, Hydrological Models, and Field Data written by G. W. Kite and published by IWMI. This book was released on 2000 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of an experiment in which 8 different methods of estimating actual evaporation and transpiration were compared using a common database. Methods based on field data, hydrological models, and satellite data were used and the objectives were to compare results and to assess the utility of each method for various applications.
