Results 51 to 60 of about 6,901 (159)

Controlling factors of ‘Caatinga’ and sugarcane evapotranspiration in the Sub-middle São Francisco Valley

Revista Brasileira de Engenharia Agrícola e Ambiental
In the Sub-middle São Francisco Valley, the main controlling factors of ‘Caatinga’ and irrigated sugarcane ETr were investigated in this study. Between 2015 and 2016, environmental variables were measured by sensors coupled to two micrometeorological ...
Herica F. de S. Carvalho, Magna S. B. de Moura, Thieres G. F. da Silva, Carlos T. A. Rodrigues   +3 more
doaj   +1 more source

Estimation of Actual Evapotranspiration, Water productivity, and Irrigation Efficiency of Wheat Fields in Surface and Sprinkler Irrigation Systems Using Remote Sensing

علوم آب و خاک, 2022
In arid and semi-arid regions, water resource management and optimization of applying irrigation water are particularly important. For optimization of applying irrigation water, the estimated values of actual evapotranspiration are necessary for avoiding
F. Ghasemi-Saadat Abadi, S. Zand-Parsa, M. Mahbod   +2 more
doaj  

Estimating Riparian and Agricultural Actual Evapotranspiration by Reference Evapotranspiration and MODIS Enhanced Vegetation Index [PDF]

Remote Sensing, 2013
Dryland river basins frequently support both irrigated agriculture and riparian vegetation and remote sensing methods are needed to monitor water use by both crops and natural vegetation in irrigation districts. We developed an algorithm for estimating actual evapotranspiration (ETa) based on the Enhanced Vegetation Index (EVI) from the Moderate ...
Pamela L. Nagler, Edward P. Glenn, Uyen Nguyen, Russell L. Scott, Tanya Doody   +4 more
openaire   +2 more sources

Applicability of three complementary relationship models for estimating actual evapotranspiration in urban area

Journal of Hydrology and Hydromechanics, 2015
The characteristics of evapotranspiration estimated by the complementary relationship actual evapotranspiration (CRAE), the advection-aridity (AA), and the modified advection-aridity (MAA) models were investigated in six pairs of rural and urban areas of
Nakamichi Takeshi, Moroizumi Toshitsugu
doaj   +1 more source

Simulation of actual evapotranspiration from agricultural landscapes in the Canadian Prairies

Journal of Hydrology: Regional Studies, 2018
Study region: This study was carried out in southwestern Manitoba, in the prairie region of Canada. Study focus: Mathematical models are routinely used to estimate evapotranspiration (ET) when measurements are lacking.
Myra Martel, Aaron Glenn, Henry Wilson, Roland Kröbel   +3 more
doaj   +1 more source

Impact of potential and (scintillometer-based) actual evapotranspiration estimates on the performance of a lumped rainfall–runoff model [PDF]

Hydrology and Earth System Sciences, 2013
Evapotranspiration (ET) plays a key role in hydrological impact studies and operational flood forecasting models as ET represents a loss of water from a catchment.
B. Samain, V. R. N. Pauwels
doaj   +1 more source

A Semiempirical Method to Estimate Actual Evapotranspiration in Mediterranean Environments [PDF]

Advances in Meteorology, 2018
Actual evapotranspiration (ETA) is a major term of site water balance whose knowledge is essential for numerous purposes. The classical ETA estimation approach based on the use of multitemporal crop coefficients (Kc) cannot be applied in water-limited environments without proper correction. Such correction can be theoretically obtained by means of soil
Marta Chiesi, Piero Battista, Luca Fibbi, Lorenzo Gardin, Maurizio Pieri, Bernardo Rapi, Maurizio Romani, Fabio Maselli   +7 more
openaire   +4 more sources

Evapotranspiration fusion and attribution analysis in the upper and middle reaches of the Yellow River Basin

Journal of Hydrology: Regional Studies
Study region: The Upper and Middle Reaches of the Yellow River Basin Study focus: Taking the upper and middle reaches of the Yellow River as the research area, 15 types of models developed by the fusion of four multi-source products of GLDAS-Noah V2.1 ...
Kun-xia Yu, Jie Liu, Xiang Zhang, Peng Li, Zhanbin Li, Xiaoming Zhang, Yang Zhao   +6 more
doaj   +1 more source

Estimation of daily evapotranspiration in gully area scrub ecosystems on Loess Plateau of China based on multisource observation data

Ecological Indicators, 2023
Evapotranspiration is an important process in the hydrologic cycle. In this study, different types of daily evapotranspiration were accurately estimated and comparatively analyzed for 2020–2021 in the gully area of Loess Plateau, China with multisource ...
Fengnian Guo, Dengfeng Liu, Shuhong Mo, Qiang Huang, Lan Ma, Shimeng Xie, Wei Deng, Guanghui Ming, Jingjing Fan   +8 more
doaj   +1 more source

Estimation of Potential and Actual Evapotranspiration

Hydrology Research, 1984
A model for determining the potential and actual evapotranspiration from agricultural crops is presented. The model requires only a limited number of meteorological variables, i.e. global radiation, air temperature and precipitation. The vegetation is characterized by the crop surface area and the efficient root depth.
openaire   +1 more source