نتایج جستجو برای: sebal

تعداد نتایج: 202  

Soil moisture is generally regarded as the limiting factors in rangeland production. Although many studies have been conducted to estimate soil moisture in semiarid areas, there is little information on mountainous rangelands in west of Iran. The present study aims to investigate the soil moisture estimation in rangelands as compared to the other land uses over a mountainous area in central Zag...

2003
Dominique Courault Bernard Seguin Albert Olioso

Different methods have been developed to estimate evapotranspiration from remote sensing data. Among them direct methods based upon the energy balance equation and using thermal infrared (TIR) data like the simplified relationship. This method has been applied for various situations: from small spatial scale using airborne TIR images to continental scale with NOAA data. More recently indirect e...

2008
S. Opoku-Duah D.N.M. Donoghue T. P. Burt

This paper compares evapotranspiration estimates from two complementary satellite sensors - NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) and ESA's ENVISAT Advanced Along-Track Scanning Radiometer (AATSR) over the savannah area of the Volta basin in West Africa. This was achieved through solving for evapotranspiration on the basis of the regional energy balance equation, which wa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده کشاورزی و منابع طبیعی 1390

آب یکی از مهمترین عوامل محدود کننده توسعه کشاورزی در مناطق خشک و نیمه خشک می باشد. استفاده بی رویه از منابع آب و خشکسالی های اخیر باعث مشکلات زیادی در مدیریت منابع آب شده است. برای جلوگیری و خروج از بحران آب نیاز به مدیریت مناسب کشاورزی و منابع آب است. یکی از پارامترهای مهم در این راستا، تعیین تبخیر و تعرق (et) محصولات کشاورزی می باشد. تبخیر و تعرق (et) که شامل تبخیر آب از سطح خاک و تعرق پوشش گ...

Journal: :International Journal of Plant and Soil Science 2022

A study on evapotranspiration for wheat was conducted in the two-year Rabi season crop from November, 2017 to April, 2018 and April 2019 at Gaya District, Bihar. Spatio-temporal information actual (ETa) helps users better understand evaporative depletion establish links between land use, water allocation, use. The Surface Energy Balance Algorithm Land (SEBAL) adopted employing essential adaptat...

Journal: :desert 2008
g. azizi s.k. alavi panah n. goodarzi m. kazemi

temperature is considered as the basic element of climate and also the environmental limiting factor in lutdesert. in this research, in order to identify the temperature of lut desert located in east of central iran, using remote sensing data, six series of modis sensor images related to june 24th & december 23rd 2002, and also january 22nd, march 22nd, june 22nd & september 24th 2003 w...

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