Results 81 to 90 of about 3,180 (206)

Validation of the net radiation through sebal algorithm in different classes of land use and occupation in Rio de Janeiro

open access: yesBioscience Journal, 2016
The aim of this study was (a) to assess and evaluate the net radiation (Rn) by SEBAL algorithm and (b) to assess the net radiation (Rn) by the landscape's spatial temporal dynamic using ISODATA algorithm, in entire city of Rio de Janeiro.
Henos Carlos Knupler Jordão Lisboa   +5 more
doaj   +3 more sources

Modeling Irrigation Efficiency Paradox From Farmers' Behaviors

open access: yesEarth's Future, Volume 14, Issue 6, June 2026.
Abstract Agricultural irrigation accounts for 70% of global freshwater withdrawals, highlighting its critical role in water conservation. However, numerous studies have presented the irrigation efficiency paradox, whereby increased efficiency rarely reduces water consumption.
Shiruo Hu   +3 more
wiley   +1 more source

A referencia evapotranszspiráció meghatározása a FAO-Penman-Monteith módszerrel

open access: yes, 2019
A referencia evapotranszspiráció egy hipotetikus referencia felszínre vonatkozóan határozza meg az evapotranszspiráció értékét. Ez a referencia felszín minden éghajlat alatt ugyanaz. Ezért a referencia felszínre egy standardizált módszerrel meghatározott
Vámos, Ottilia   +6 more
core  

Alleles From Crop Wild Relatives Accumulated by Long‐Term Adaptation to Low‐Input Environments Contribute to Yield Advantages in Wheat (Triticum aestivum)

open access: yesPlant Breeding, Volume 145, Issue 3, Page 467-481, June 2026.
ABSTRACT Increasingly variable climate conditions are affecting crop production, leading to greater yield fluctuations, which in turn are impacting global food security. Introducing alleles from regions where the expected stress conditions occur, so‐called exotic alleles, could serve as a means to mitigate these effects. We examined the value of exotic
Michael Schneider   +4 more
wiley   +1 more source

Hargreaves Equation as an All-Season Simulator of Daily FAO-56 Penman-Monteith ETo

open access: yesAgricultural Science, 2013
This work showed the Hargreaves equation (HG) can be modified into a highly efficient computational replacement for the FAO-56 Penman-Monteith equation and its auxiliary functions for the computation of daily reference evapotranspiration (ETo) estimation when only available data are daily temperature data. By modifying all the constants (i.e., '0.0023'
openaire   +1 more source

Comparacao de metodologias de estimativa da evapotranspiracao de referencia para a regiao de Goiania, GO

open access: yesBioscience Journal, 2006
Com o objetivo de se comparar alguns modelos de estimativa da ETo, para a região de Goiânia, GO, foram avaliados os modelos de Penman-Monteith (PM), Penman-FAO (FPn), Blaney-Criddle-FAO (FB-C), Radiação-FAO (FRad), Hargreaves-Samani (Harg) e Tanque ...
Ruth Zago Oliveira   +4 more
doaj  

Estimación de evapotranspiración de referencia a nivel mensual en venezuela: ¿Cuál método utilizar? Estimation of monthly reference evapotranspiration in Venezuela: Which method to be used?

open access: yesBioagro, 2008
La determinación de las necesidades de riego de los cultivos se basa en la estimación precisa de la evapotranspiración de referencia (ETo) de cada zona en particular, y a su vez, las posibles alternativas para la estimación están sujetas a la limitación ...
Ricardo Trezza
doaj  

La fórmula Penman-Monteith FAO 1998 para determinar la evapotranspiración de referencia, ETo

open access: yes, 2012
La fórmula «FAO Penman Monteith56» (la cual preferimos denominar «Penman-Monteith FAO98»), es discutida en este trabajo como el procedimiento que permite de la manera más precisa, la estimación de la ...
Guevara Díaz, José Manuel
core  

COMPARAÇÃO ENTRE MÉTODOS DE ESTIMATIVA DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA (ETO) PARA

open access: yesRevista Caatinga, 2007
The aim of this research paper was to make a comparison between the reference values of crop evapotraspiration acquired through the FAO-modified Penman-Monteith and Thornthwaite, Hargreaves-Samani, Blaney-Criddle, the Class A pan and Makkink.
Wellington Farias Araújo   +2 more
doaj  

MÉTODOS DE ESTIMATIVA DA EVAPOTRANSPIRAÇÃO DE REFERÊNCIA (ETO) PARA A REGIÃO DE MOSSORÓ-RN

open access: yesRevista Verde de Agroecologia e Desenvolvimento Sustentável, 2012
O trabalho teve por objetivo analisar uma série histórica de 38 anos (1970 a 2007) dos dados da estação meteorológica Jerônimo Rosado da UFERSA (Universidade Federal Rural do Semi-Árido), em Mossoró/RN.
Wesley Oliveira Santos   +4 more
doaj  

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