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Showing 1 to 20 of 31 for “"Penman-Monteith"”.
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Comparação de equações que estimam a evapotranspiração de referência (ETo) com o modelo de Penman-Monteith padrão FAO nas condições do município de Areia-PB
… with those estimated by the Standard FAO Penman-Monteith model in Areia-PB conditions. To achieve this goal, average monthly weather data of the maximum, average and minimum air temperatures, relative humidity, wind, precipitation and sunshine, series 1998-2007, obtained from the …
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Estudo micrometeorológico de um cultivo de cana-de-açúcar em Alagoas
… do presente estudo foi o ajuste do modelo de Penman-Monteith para o cálculo da evapotranspiração da cultura da cana-de-açúcar, na zona canavieira de Alagoas, a partir de determinações micrometeorológicas pelo método do balanço de energia, em diferentes estádios de desenvolvimento da cultura e …
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A Water Balance and Sediment Yield Analysis Model for the Lopez Lake Reservoir
… higher than the water balance and the Penman-Monteith predictions. The Penman-Monteith method estimates seem more reasonable for the lake. SWAT was also used to simulate effects of a wildfire on sediment inflow and sediment yield into the reservoir for a year after a simulated fire. …
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Nighttime evapotranspiration in a semiarid climate using a hemispherical chamber
… and aerodynamic conceptual models, such as the Penman-Monteith ET equation. The objective of this study is to increase the understanding of ETn contribution to daily ET (ET24) sums by using a hemispherical chamber to measure ETn on three separate nights in the spring, summer, and fall in eastern …
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Evaluating a Process-Based Mitigation Wetland Water Budget Model
… methods: Thornthwaite (IPM) and FAO-56 Penman-Monteith (IPM-FAO). A second process-based model, utilizing MODFLOW-2005, was constructed to better predict water levels in mitigation wetlands. Modeled processes included groundwater movement and vegetative resistance to flow, which can be a …
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Evaluation of a Water Budget Model for Use in Wetland Design
… and to compare the Thornthwaite and the FAO-56 Penman-Monteith potential evapotranspiration estimation methods for the design of created wetlands. The Wetbud model was tested using data from two existing mitigation wetlands. Both modules produced reasonable results; however, the basic module did …
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The impacts of climate change and agricultural activities on water cycling of Northern Eurasia
… step for better regional-scale water management. Penman–Monteith based algorithms for plant transpiration and soil evaporation were introduced into the Terrestrial Ecosystem Model (TEM) to calculate <em>ET</em> (Chapter 3). I then examined the response of <em>ET</em> and water availability to …
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Comportamento do algodoeiro herbáceo BRS Araripe em diferentes lâminas de irrigação no Cariri Cearense
… (ETC = ET0 * Kc) being ET0 determined by the Penman-Monteith method. Climatic data for calculating ET0 were obtained from an Automatic Meteorological Station of the National Institute of Meteorology – INMET, at Barbalha, CE Brazil. It was concluded that the irrigation levels tested had effect …
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Irrigation scheduling for Sovereign Coronation grapevine based upon evapotranspiration calculations and crop coefficients /
… of assessing the usefulness of the modified Penman-Monteith equation to accurately schedule vine irrigation needs. Data (relative humidity, windspeed, solar radiation, and temperature) required to precisely calculate evapotranspiration (ETq) were downloaded from the Ontario Weather Network. …
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Ecosystem-atmosphere exchange of carbon dioxide and water vapour in typical East-Asian croplands
… is changed in croplands. Improvement of the Penman-Monteith model to simulate evapotranspiration and light-response model to simulate carbon dioxide flux for croplands is studied. Field campaigns were carried out in an irrigated rice field and a non-irrigated potato field in an intensively …
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The influence of drought, and other abiotic factors on tree water use in a temperate remnant forest
… soil evapotranspiration; (c) application of the Penman-Monteith equation to estimate canopy conductance and transpiration rates; (d) two methods to scale spatially from measurements of individual trees to estimates of stand water use; (e) three methods to scale temporally from measurements …
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Automated Water Management for Center Pivot Irrigation Systems
… schedule irrigations effectively using the ASCE Penman Monteith equation for estimating reference evapotranspiration (ETr) throughout the growing season for all crop types simulated.<br /> For com, the Akron, CO site had the smallest average ratio of rainfall to crop evapotranspiration (ETc) …
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Deficit Irrigation Strategies on young orange trees (cv Tarocco Sciara)
… 100% IR. The IR was calculated using the Penman-Monteith approach, by assuming a crop coefficient of 0.45, and correction coefficients accounting for the localized irrigation. On selected plants, measurements of LAI, PAR, xylematic potential, canopy temperature, gas exchanges, trunk …
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Recharge dynamics of a perched phreatic aquifer
… and evapotranspiration (ET) calculated using the Penman-Monteith method totaled 107.5 cm. Recharge estimates from FMB ranged from 20.3% to 33.6%. Springflows were modeled using a stage-discharge cross-correlation method. Recharge estimates from IHS of these springflows ranged from 59.8% to 72.2% …
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Efeitos de elementos meteorológicos na evapotranspiração estimada pelo Irrigâmetro nas condições climáticas da Zona da Mata mineira
… de referência obtida pelo método de Penman-Monteith FAO 56. A análise do desempenho do Irrigâmetro para estimar a evapotranspiração de referência foi feita comparando-se os resultados do aparelho com os obtidos pela equação de Penman-Monteith FAO 56. A hierarquização das estimativas …
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Water management practice for maize production in Chinchimane, Zambezi region, Namibia
… study area. CROPWAT, a software which uses the Penman-Monteith approach to compute reference evapotranspiration, crop water needs and irrigation requirements, was employed in this study to estimate the water needs of maize in the Chinchimane area of the Zambezi region. Subsequently, a maize …
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Evaluation of Deficit Irrigation Strategies for Corn
… was calculated with the tall reference Penman-Monteith equation and dual crop coefficients for com. The yield ratio, calculated with a normalized transpiration ratio, was used along with water use data to evaluate irrigation strategies.<br /> Strategies with high water use efficiencies …
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Hydrological responses to moorland land-use change
… against measured values. Predictions based on Penman-Monteith evapotranspiration and 'layer' moisture deficits, along with an optimised soil-drying parameter, were found to simulate observed conditions most closely. A land-use change from open heather moorland to burnt ground promoted …
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Seepage Rates in Closed Basins
… determined using data from a weather station and Penman-Monteith FAO56 method, and then seepage rates were calculated from a water budget. Seepage rates varied greatly depending on conditions specific to the site. The seepage rates found for the three surface water sites in this study were 1.1 …
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Assessment of the effect of climate change in anticipated water resources availability in arid climate zones
… to the Food and Agriculture Organization Penman-Monteith reference technique, using data from 24 stations cover different elevations and climatic conditions for the period from 1979 to 2014. The initial form of RDI is directly influenced by the selected PET method at different elevations …
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