نتایج جستجو برای: modified penman equation

تعداد نتایج: 472208  

Journal: :International Journal of Climatology 2022

Accurate estimation of evapotranspiration has crucial importance in arid regions like Egypt, which suffers from the scarcity precipitation and water shortages. This study provides an investigation performance 31 widely used empirical equations 20 models developed using five artificial intelligence (AI) algorithms to estimate reference (ET0) generate gridded high-resolution daily ET0 estimates o...

ژورنال: علوم آب و خاک 2010
بختیاری, بهرام, خانجانی, محمدجواد, خلیلی, علی, لیاقت, عبدالمجید,

In this study, the Penman-Monteith methods proposed by the Food and Agriculture Organization (FAO-56) and American Society of Civil Engineers (ASCE) were used for hourly ETo estimation under the semiarid climate of Kerman, Iran. Hourly ETo estimations obtained from the proposed methods were compared with measured ETo values by using a large weighing electronic lysimeter during April to Septembe...

Journal: :journal of agricultural science and technology 2010
b. bakhtiari n. ghahraman a. m. liaghat g. hoogenboom

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 ...

2017
Robbie A. Hember Nicholas C. Coops David L. Spittlehouse Matthew McCabe

Given the widespread ecological implications that would accompany any significant change in evaporative demand of the atmosphere, this study investigated spatial and temporal variation in several accepted expressions of potential evaporation (PE). The study focussed on forest regions of North America, with 1 km-resolution spatial coverage and a monthly time step, from 1951–2014. We considered P...

Journal: :British Dental Journal 2005

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