Results 91 to 100 of about 35,573 (203)

Evaluating evapotranspiration values in Rwanda using the FAO-56 PM, Turc, and Hargreaves-Samani equations [PDF]

open access: yes, 2021
Evapotranspiration (ET) is an important component of the hydrologic cycle and involves exchange of water between the surrounding water bodies, soil, crop surfaces, and the atmosphere.
Uwase, Elizabeth
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Calibration of Hargreaves–Samani and Priestley–Taylor equations in estimating reference evapotranspiration in the Northwest of Iran

open access: yesArchives of Agronomy and Soil Science, 2016
ABSTRACTAccurate estimation of reference evapotranspiration (ETo) is essential for water resources management and irrigation systems scheduling, especially in arid and semiarid regions such as Iran. In the present research, constant coefficients of Hargreaves–Samani (CH–S) and Priestley–Taylor (CP–T) equations were locally calibrated to estimate the ...
Saeid Mehdizadeh   +2 more
openaire   +1 more source

Defining parameters for the Hargreaves-Samani equation for estimating reference evapotranspiration in the State of Ceará, Brazil

open access: yes, 2016
The Hargreaves-Samani model is used in estimating reference evapotranspiration, and is very useful for irrigation management; it is considered to be of practical use as it uses meteorological elements, which are easily obtained, such as temperature ...
Kleber Gomes de Macêdo (12805403)   +4 more
core   +1 more source

Modifying Hargreaves-Samani equation for estimating reference evapotranspiration in dryland regions of Amudarya River Basin

open access: yes, 2019
Reference evapotranspiration (ETo) is a key factor in determining the amount of water needed for crops, which is crucial to correct irrigation planning. FAO Penman-Monteith (EToPM) is among the most popular method to estimate ETo. Apparently sometimes it
Yuldashev, Tulkun   +5 more
core   +1 more source

Estimativa da evapotranspiração de referência a partir de dados meteorológicos limitados

open access: yesPesquisa Agropecuária Brasileira, 2015
O objetivo deste trabalho foi avaliar a estimativa da evapotranspiração de referência (ETo), para a região Sudeste do Brasil, a partir de dados meteorológicos limitados. O método de Penman-Monteith FAO 56 (PMp) foi tomado como referência.
Daniel Fonseca de Carvalho   +3 more
doaj   +1 more source

Avaliação de desempenho de métodos para estimativas de evapotranspiração de referência para a região de Palotina, Estado do Paraná = Assessment of modeling approaches for estimates of reference evapotranspiration for the region of Palotina, Paraná State, Brazil

open access: yesActa Scientiarum. Agronomy, 2008
O objetivo do presente trabalho foi comparar a eficiência dos métodos de estimativa da evapotranspiração de referência em relação ao método de FAO Penman- Monteith.
Vera Lucia Greco Syperreck   +3 more
doaj  

A Methodological Comparison of Evapotranspiration Estimation for Coconut MATAG (Cocos nucifera) Seedlings in Tropical Nursery Conditions [PDF]

open access: yesBIO Web of Conferences
This study was conducted at Universiti Putra Malaysia (UPM), located at a latitude of 3° N, in a rain shelter nursery on the rooftop of the Faculty of Engineering.
Sulaiman Ahmad Syafik Suraidi   +4 more
doaj   +1 more source

Estimating Global Solar Radiation in Hawassa City Using AngstromPrescott and Hargreaves-Samani Models

open access: yes, 2020
In this research, the data of daily sunshine duration and daily maximum and minimum temperature were used to predict daily mean values of global solar radiation and their variability’s in Hawassa city, tropical location. The data of daily sunshine hours, maximum and minimum temperature obtained from Hawassa meteorological station was to find out the ...
openaire   +2 more sources

Modelo de hargreaves-samani ajustado às condições climáticas do estado do Rio de Janeiro para estimativa da evapotranspiração de referência. [PDF]

open access: yes, 2013
Utilizando-se como padrão para determinação da evapotranspiração de referência (ETo) o modelo de Penman-Monteith parametrizado no boletim Nº 56 de irrigação e drenagem da FAO (PM-FAO56) ajustou-se o modelo de Hargreaves-Samani (HS) para as condições ...
DELGADO, R. C.   +4 more
core  

Estimativa da evapotranspiração de referência utilizando os métodos de Hargreaves-Samani e do tanque Classe A. [PDF]

open access: yes, 2005
A determinação da lâmina de irrigação baseia-se no cálculo diário dos valores da evapotranspiração de referência (ETo). O método de Penman-Monteith-FAO é considerado padrão para o cálculo de ETo.
CONCEIÇÃO, M. A. F., MARIN, F. R.
core  

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