نتایج جستجو برای: net radiation

تعداد نتایج: 334266  

Journal: :جغرافیا و مخاطرات محیطی 0
احمد روشنی هوشنگ قائمی زهرا حجازی زاده

1. introduction the process by which the net radiation is transformed to the atmospheric dynamical energy, occur to a large degree at the interface between the surface and the atmosphere. as the driving force for such process, an accurate estimation of the net radiation at the earth’s surface is a necessary input for surface process models. net radiation is a key component in the surface radiat...

Journal: :journal of agricultural science and technology 0
j. brotons department of economic and financial studies, universitas miguel hernández. avda. de la universidad, s/n, 03202. elche. (alicante)spain. p. legua department of economic and financial studies, universitas miguel hernández. avda. de la universidad, s/n, 03202. elche. alicante. p. melgarejo department of plant science and microbiology, universitas miguel hernandez, ctra beniel 3.2, 03312 orihuela (alicante), spain. f. j. manera department of physics and computer architecture, universitas miguel hernandez, ctra beniel 3.2, 03312 orihuela (alicante), spain. f. hernandez department of plant science and microbiology, universitas miguel hernandez, ctra beniel 3.2, 03312 orihuela (alicante), spain. j. j. martinez department of plant science and microbiology, universitas miguel hernandez, ctra beniel 3.2, 03312 orihuela (alicante), spain.

pomegranate fruit maturity status is commonly assessed based on external (skin) colour, juice colour and acidity of juice. some researchers have studied the correlation between the parameters of the skin colour and acidity, total soluble solids, citric acid and anthocyanins. this study describes the relationship existing between solar radiation and a colorimetric maturity index in the pomegrana...

Introduction The human need for energy is continually increasing and the limited sources of fossil energy are reducing. The indiscriminate use of fossil fuels pollute the environment and threaten life on the earth. Besides, because of difficult terrain, unfavourable topographical conditions and inaccessibility of some mountainous roads to national electricity network or high costs of these s...

2014
S. V. S. Sai P. Manavalan

Daily net surface radiation fluxes are estimated for Indian land mass at spatial grid intervals of 0.1 degree. Two approaches are employed to obtain daily net radiation for four sample days viz., November 19, 2013, December 16, 2013, January 8, 2014 and March 20, 2014. Both the approaches compute net shortwave and net longwave fluxes, separately and sum them up to obtain net radiation. The firs...

Journal: :فیزیک زمین و فضا 0
عظیمه زارع دانشجوی دکتری هواشناسی، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران پرویز ایران نژاد دانشیار، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران عباسعلی علی اکبری بیدختی استاد، گروه فیزیک فضا، مؤسسة ژئوفیزیک دانشگاه تهران

the main driving force of the earth atmospheric system is solar radiation. radiation flux determines the surface temperature and impacts life on the earth through photosynthesis. a quantitative knowledge of the earth radiation field is important to evaluate the atmosphere–surface interactions and the global hydrological cycle. various atmospheric radiative transfer models have been proposed in ...

Journal: :Remote Sensing 2016
Manish Verma Joshua B. Fisher Kaniska Mallick Youngryel Ryu Hideki Kobayashi Alexandre Guillaume Gregory Moore Lavanya Ramakrishnan Valerie Hendrix Sebastian Wolf Munish Sikka Gerard Kiely Georg Wohlfahrt Bert Gielen Olivier Roupsard Piero Toscano Altaf Arain Alessandro Cescatti

Reliable and fine resolution estimates of surface net-radiation are required for estimating latent and sensible heat fluxes between the land surface and the atmosphere. However, currently, fine resolution estimates of net-radiation are not available and consequently it is challenging to develop multi-year estimates of evapotranspiration at scales that can capture land surface heterogeneity and ...

Population growth and urbanization development are the main triggering factors of changes in urban land uses. These, in turn, result in changes in the components of radiation balance. The present study tries to analyze the role of urban land uses in radiation balance by calculating net radiation and its analysis. For this purpose, the Landsat 8 satellite image of 2016 was used. Characteristics ...

Journal: :Remote Sensing 2015
Xin Pan Yuanbo Liu Xingwang Fan

Surface net radiation plays an important role in land–atmosphere interactions. The net radiation can be retrieved from satellite radiative products, yet its accuracy needs comprehensive assessment. This study evaluates monthly surface net radiation generated from the Clouds and the Earth’s Radiant Energy System (CERES) and the Surface Radiation Budget project (SRB) products, respectively, with ...

Journal: :Journal of Agricultural Meteorology 1983

Journal: :Revista do Instituto Geológico 2017

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