accurate estimation of crop evapotranspiration (etc) plays an important role in improving the water useefficiency (wue) and water management. due to the presence of different types of coatings plant in large areas, the accurate calculation of the water requirements by conventional methods is elusive or impossible. remote sensing methods are becoming attractive to estimate crop evapotranspiratio...

from the mathematical point of view, the fao penman-monteith equation shows a homographic function related to the wind speed. the homographic function has horizontal and vertical asymptotes. in this issue horizontal asymptote is applicable; because the vertical asymptote occurs for negative values of wind speed but the negative sign indicates the direction of the wind speed and only the absolut...

abstract evapotranspiration (et) determination is a key factor for irrigation scheduling, water balance, irrigation system design and management and crop yields simulation. therefore many scientists have tried to estimate evapotranspiration in different spatial and temporal scales. remote sensing is a one of new technique in estimation of et in regional scales. so, in this study it’s tried to e...

The following work presents a proposal for rural, sustainable, economic development and aims to demonstrate the advantages of implementing an economically viable system promote treatment domestic sewage in rural areas. This is exploratory research, carried out from literature review. selected method consists evapotranspiration tank, which stands others its simplified feature segregating black g...

In Water Resources area, data are obtained from various sources, such as measuring instruments and satellites. Often such data may contain patterns that are not easily identified, either because of the large volume of data sets or because the analysis requires the use of several data dimensions. In this way, this study proposes the application of machine learning resources and spatial visualiza...

This paper addresses the current imperative to develop and test urban ET algorithms, incorporate these into urban water balance models, and develop these into tools to underpin and guide Water Sensitive Urban Design (WSUD) and integrated urban water management. Two approaches to modelling the urban water balance focusing specifically on urban evapotranspiration are presented: i) SUES (Single-so...

Eine ressourcenschonende Bewässerung von Nutzpflanzen wird durch den Klimawandel in den nächsten Jahren immer größere Bedeutung gewinnen. Eine Möglichkeit, das für Pflanzen zur Verfügung stehende Wasserpotential beurteilen zu können, ist die Nutzung von klimatischen Faktoren und Computermodellen. In diesem Beitrag wird die Entwicklung eines auf dem Forschungsprojekt agriOpenLink basierten Softw...

abstract in order to estimate the reference evapotranspiration different equation is used. validity of each methods depends upon the climate and the parameters which are used in these equations. therefore it is necessary to calibrate these methods for any specific area and for any desired frequency. in this study common temperature and radiation based methods were used for calculating crop evap...