نتایج جستجو برای: modified penman

تعداد نتایج: 251477  

J. Sajad M. Farasati O. Bahmani S. M. Seyedian

ABSTRACT-Different evapotranspiration (ET) estimation equations having different accuracy with different conditions have been developed for ET estimation. This study will firstly focus on the estimation of 13 climatic equations of daily garlic ET estimation whose  ET is measured by lysimeter to provide information which can be helpful in selecting an appropriate ET equation. The paper aims at s...

2001
Peter J. Cameron Bojan Mohar M. A. Fiol

Most of these problems were presented at the problem session of the 18th British Combinatorial Conference at the University of Sussex, 2–6 July 2001. I have added some problems given to me after the session. Since two of the problems concern circular chromatic number, the entire set has a circular structure; the starting point is fixed by the sixth problem. Problem 1 (BCC18.1) Freese–Nation num...

Journal: :آب و خاک 0
بختیاری بختیاری خلیلی خلیلی لیاقت لیاقت خانجانی خانجانی

abstract in recent years, automatic weather stations have been widely used for recording meteorological data in different time scales. therefore the accurate estimation of eto by combination equations can be evaluated using these set of short time scales data. daily eto can also be calculated by summation of hourly eto values. the purpose of this study is to compare the eto values estimated by ...

Journal: :iran agricultural research 2016
s. m. seyedian m. farasati o. bahmani j. sajad

abstract-different evapotranspiration (et) estimation equations having different accuracy with different conditions have been developed for et estimation. this study will firstly focus on the estimation of 13 climatic equations of daily garlic et estimation whose  et is measured by lysimeter to provide information which can be helpful in selecting an appropriate et equation. the paper aims at s...

Amir SoltaniMohammadi Kobra KheiriShalamzari,

The proposed method for calculation of potential evapotranspiration is Penman-Monteith FAO method, but there are other methods that require less meteorological data but estimates close to the FAO Penman-Monteith method in different climatic conditions.  Performance evaluation of these methods on the same basis is prerequisite for selecting an alternative approach in accordance with available da...

ژورنال: علوم آب و خاک 2007
شاهرخ زندپارسا, , علیرضا سپاسخواه, , ابوالفضل مجنونی هریس, , علی اکبر کامگار حقیقی, ,

Optimal crop water requirement is needed for precise irrigation scheduling. Prediction of crop water requirements is a basic factor to achieve this goal. In this study, maize potential evapotranspiration (ETp) was prediced by maize simulation model (MSM). Then, it was evaluated and validated using experimental field data obtained in Agricultural Research Station of Shiraz University (Bajghah, F...

Journal: :Eng 2022

Prediction of potential evapotranspiration (PET) using an artificial neural network (ANN) with a different architecture is not uncommon. Most researchers select the optimal statistical indicators. However, there still gap to be filled in future applications various drought indices and assessment location, duration, average, maximum minimum. The objective was compare performance PET computed ANN...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید