Results 21 to 30 of about 9,210 (256)

Comparison of the Concepts of Potential and Reference Evapotranspiration using Lysimetric Data in Qazvin Province [PDF]

open access: yesمحیط زیست و مهندسی آب, 2021
In order to determine the amount of irrigation water, it is required to calculate the amount of the plant water requirement or evapotranspiration. The equations used to calculate evapotranspiration do not use the same climatic parameters and are not ...
Mohadese Sadat Fakhar, Abbas Kaviani
doaj   +1 more source

Deriving potential evapotranspiration from satellite-based reference evapotranspiration, Upper Tekeze Basin, Northern Ethiopia

open access: yesJournal of Hydrology: Regional Studies, 2022
Study region: Zamra catchment, Upper Tekeze Basin, Northern Ethiopia. Study focus: Direct field estimates of potential evapotranspiration (PET) remain a challenge, because they are expensive and have limited spatial representativeness.
Mewcha Amha Gebremedhin   +3 more
doaj   +1 more source

Urbanization Effects on Reference Evapotranspiration [PDF]

open access: yesJournal of Korea Water Resources Association, 2007
The effects of climatic changes owing to urbanization, geographical and topographical conditions on Penman-Monteith reference evapotranspiration, and energy and aerodynamic terms of Penman-Monteith reference evapotranspiration have been studied. In this study, 56 climatological stations including the Seoul metropolis in South Korea have been selected ...
openaire   +1 more source

Development of the crop coefficient for capsicum (Capsicum annum L.) under protected structures

open access: yesJournal of Agrometeorology, 2016
The study was undertaken to determine the crop water requirement and crop coefficient for capsicum (Capsicum annum L.) at plasticulture farm of CTAE, Udaipur, Rajasthan under four small protected structures; (i) shednet house (ii) insectnet house (iii ...
CHITRA SHUKLA   +2 more
doaj   +1 more source

Assessment of crop water requirement of field pea (Pisum sativum L.) in foothills valley areas of Manipur, North East India

open access: yesJournal of Agrometeorology, 2021
The purpose of this study was to assess the evapotranspiration in field pea (Pisum sativum L.) in foothills valley areas of Manipur using the Hargreaves-Samani equation to predict the plant water demand. The crop coefficient (Kc) values ranged between 0.
LAISHRAM KANTA SINGH   +2 more
doaj   +1 more source

Micro-level spatial variability and temporal trends in reference evapotranspiration (ETo) at a semi-arid tropical station

open access: yesJournal of Agrometeorology, 2010
Micro-level spatial variability and temporal trends in annual and seasonal (weeks 23-39) reference evapotranspiration (ETo) were analyzed across three locations in Hyderabad.
N. N. SRIVASTAVA   +3 more
doaj   +1 more source

Radiation Balance and Partitioning of Latent and Sensible Heat Fluxes Over a Lime Orchard in Eastern Amazon [PDF]

open access: yesRevista Brasileira de Meteorologia, 2023
We investigate the balance of radiation and energy over a lime orchard in Eastern Amazon and how it relates to environmental conditions. We found that lime trees aged between 6 and 7 years old reflect 11.0% to 14.5% of incoming shortwave radiation, and ...
João Vitor de Nóvoa Pinto   +6 more
doaj   +1 more source

Performance Assessment of M5 Tree Model and Genetic Programming in Tabriz Station Reference Evapotranspiration Modeling [PDF]

open access: yesمهندسی منابع آب, 2017
Evapotranspiration has a main role in water budget assessment and management. In plant water requirements and evapotranspiration volume calculation, firstly reference evapotranspiration (ET0) have to be computed and then plant water requirements can be ...
Mohammad Taghi Sattari   +1 more
doaj  

A model of correction indexes determination for Virginia type tobacco on the basis of field measured ETP [PDF]

open access: yesJournal of Agricultural Sciences (Belgrade), 2009
Numerous methods of calculating ET0 and ETP offer a great practical possibility for their application, but in order to improve their efficiency it is necessary to check them in particular regions.
Aksić Miroljub   +4 more
doaj   +1 more source

Geospatial interpolation of reference evapotranspiration (ETo) in areas with scarce data: case study in the South of Minas Gerais, Brazil

open access: yesRevista Ambiente & Água, 2012
The reference evapotranspiration is an important hydrometeorological variable; its measurement is scarce in large portions of the Brazilian territory, what demands the search for alternative methods and techniques for its quantification.
Silvio Jorge Coelho Simões   +2 more
doaj   +1 more source

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