Results 11 to 20 of about 12,619 (208)

Generalized combination equations for canopy evaporation under dry and wet conditions [PDF]

open access: yesHydrology and Earth System Sciences, 2014
The formulation of canopy evaporation is investigated on the basis of the combination equation derived from the Penman equation. All the elementary resistances (surface and boundary layer) within the canopy are taken into account, and the exchange ...
J. P. Lhomme, C. Montes
doaj   +1 more source

FAO Penman-Monteith equation for reference evapotranspiration from missing data [PDF]

open access: yesIdesia (Arica), 2013
The determination of the amount of water needed for crops is one of the main parameters for correct irrigation planning. In this context the FAO Penman-Monteith method (FAO-PM) has been recommended as the best for the reference evapotranspiration (ETo) estimates.
Carvalho, Luiz Gonsaga de   +6 more
openaire   +2 more sources

Estimation of crop water requirements: extending the one-step approach to dual crop coefficients [PDF]

open access: yesHydrology and Earth System Sciences, 2015
Crop water requirements are commonly estimated with the FAO-56 methodology based upon a two-step approach: first a reference evapotranspiration (ET0) is calculated from weather variables with the Penman–Monteith equation, then ET0 is multiplied by a ...
J. P. Lhomme   +3 more
doaj   +1 more source

Critical analysis of the contemporary methods for estimating reference evapotranspiration [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2012
Evapotranspiration is one of the most important processes within the hydrological cycle whose reliable assessment is essential in the planning and managing of land and water resources.
Đukić Vesna, Mihailović Vladislava
doaj   +1 more source

Analysis of the Accuracy Comparison of Five Different Models of Valiantzas Equation in the Estimation of Reference Evapotranspiration [PDF]

open access: yesعلوم و مهندسی آبیاری, 2018
Evapotranspiration is one of the most important factors in hydrological cycle. Potential evapotranspiration is used to design in irrigation and drainage networks and hydrological studies (Davis & Dukes, 2010).
Saeid Mehdizadeh   +3 more
doaj   +1 more source

Comparative evaluation of different reference evapotranspiration models [PDF]

open access: yes, 2017
The study was carried out to select best alternative method for the estimation of reference evapotranspi-ration (ET0). Accurate estimation of potential evapotranspiration is a necessary step in water resource management.
Arya, C. K.   +5 more
core   +2 more sources

Comparison of different reference evapotranspiration (ET0) models and determination of crop-coefficients of french bean (Phesiolus vulgaris.) in mid hill region of Meghalaya

open access: yesJournal of Agrometeorology, 2017
The water requirement and crop evapotranspiration (ETc)is determined using reference evapotranspiration (ET0) and crop-coefficient (kc). Numerous models are available for estimation of ET0,among which Penman-Monteith (FAO-56) model is considered to be ...
M. TAHASHILDAR   +3 more
doaj   +1 more source

Modification of FAO Penman–Monteith equation for minor components of energy [PDF]

open access: yesHydrology Research, 2018
AbstractThe conventional Food and Agriculture Organization of the United Nations (FAO) Penman–Monteith (P-M) equation requires knowledge of the available energy to estimate reference evapotranspiration (ETo); however, it is common to ignore the minor energy components (MECs). This study was conducted to determine the effect of not including the MECs in
John H. Prueger   +2 more
openaire   +1 more source

Creating long-term gridded fields of reference evapotranspiration in Alpine terrain based on a recalibrated Hargreaves method [PDF]

open access: yesHydrology and Earth System Sciences, 2016
A new approach for the construction of high-resolution gridded fields of reference evapotranspiration for the Austrian domain on a daily time step is presented.
K. Haslinger, A. Bartsch
doaj   +1 more source

Improvement of reference crop evapotranspiration estimates using limited data for the Brazilian Cerrado

open access: yesScientia Agricola, 2022
Evapotranspiration (ET) is a key component of the hydrological cycle. Therefore, adequately estimating it is crucial to improving water resource planning and management.One of the most affordable methods of estimating ET is first to estimate reference ...
Daniel Althoff, Lineu Neiva Rodrigues
doaj   +1 more source

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