an accurate determination of evapotranspiration is required for many studies that involve estimation of the water balance. one methodology is the use of lysimeters. considering the semiarid climate of kerman province, in southeastern parts of iran, the only operating electronic weighing lysimeter in the country was used for calculating daily eto from april 2004 to march 2005 in three different ...

Accurate estimation of evapotranspiration plays a vital role in judicious irrigation scheduling. Keeping this view, study was undertaken to compare the performance five methods, viz. Penman method (PM), FAO Monteith (FAO-PM), Priestley-Taylor (PT), Radiation (FAO-RM) and Hargreaves methods (HM) for Sultanpur District Uttar Pradesh, India using daily weather data acquired from automatic station ...

It is often necessary to find a simpler method in different climatic regions to calculate reference crop evapotranspiration (ETo) since the application of the FAO-56 Penman-Monteith method is often restricted due to the unavailability of a comprehensive weather dataset. Seven ETo methods, namely the standard FAO-56 Penman-Monteith, the FAO-24 Radiation, FAO-24 Blaney Criddle, 1985 Hargreaves, P...

a Department of Natural Science & Public Health, Zayed University, PO Box 19282, Dubai, United Arab Emirates b Department of Biological Sciences, University of Windsor, Windsor, Ontario, Canada N9B3P4 c Department of Biology and Chemistry, American University of Sharjah, PO Box 26666, Sharjah, United Arab Emirates d United Nations University, International Network on Water, Environment and Heal...

BACKGROUND The role of fixed airflow obstruction (FAO) in asthma is unclear. OBJECTIVE To assess the relationship between FAO and clinical features of asthma and the effect of FAO on treatment response. METHODS Post hoc descriptive analysis of data stratified by FAO category (screening post-albuterol FEV1/FVC <lower limit of normal [LLN] [FAO+] or ≥LLN [FAO-]) from two 12-week, randomized, ...

The evapotranspiration rate has a vital role in agricultural water management. In this paper, ability of Box-Jenkins models in forecasting the reference potential evapotranspiration is estimated. For this purpose meteorological data of Mehrabad synoptic station in Tehran was selected. Using this data and according to eight famous evapotranspiration equations amounts of evapotranspiration were f...

The objective was to perform a comparative study of the meteorological elements data that most cause changes in reference Evapotranspiration (ETo, mm) and its own value, automatic weather stations AWS conventional CWS Sertão Agreste regions Pernambuco State. ETo calculated on daily scale using standard method proposed by Food Agriculture Organization (FAO), Penman-Monteith (FAO-56). information...