نتایج جستجو برای: shortwave and longwave radiation

تعداد نتایج: 16874952  

Journal: :فیزیک زمین و فضا 0
فرنوش عطایی موسسه ژئوفیزیک پرویز ایران نژاد هیئت علمی موسسه ژئوفیزیک مجید مزرعه فراهانی موسسه ژئوفیزیک امید علیزاده چوبری موسسه ژئوفیزیک

mineral dust is produced from both natural and anthropogenic sources. dust aerosols can be transported over long distances in the atmosphere. they reduce the incident shortwave radiation to the surface by absorbing and scattering the solar radiation; thereby leading to a cooling effect at the surface and lower tropospheric temperature. on the other hand, by absorption and re-emission of longwav...

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...

2010
Fred Bosveld

Introduction Closing the surface energy budget (SEB) is one of the longest outstanding problems in micro-meteorology. At the earth’s surface the net radiation (QN), consisting of the budget of shortwave incoming (K), shortwave outgoing (K), longwave incoming (L) and longwave outgoing radiation (L), should be balanced by the transport of heat into the soil (G) and to the atmosphere in the form o...

2008
K. G. Pavlakis

The paper "ENSO surface shortwave radiation forcing over the tropical Pacific" by Pavlakis et al adds the shortwave component to their earlier study, published in this journal, which examined ENSO surface longwave radiation forcing. The paper is fine, but the results basically corroborate previously published work regarding the evolution of ENSO induced changes in atmospheric circulation, outgo...

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: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2010
Wei Wu Yangang Liu

A new one-dimensional radiative equilibrium model is built to analytically evaluate the vertical profile of the Earth's atmospheric radiation entropy flux under the assumption that atmospheric longwave radiation emission behaves as a greybody and shortwave radiation as a diluted blackbody. Results show that both the atmospheric shortwave and net longwave radiation entropy fluxes increase with a...

2016
Robin J. Hogan Sophia A. K. Schäfer Carolin Klinger J. Christine Chiu Bernhard Mayer

Estimating the impact of radiation transport through cloud sides on the global energy budget is hampered by the lack of a fast radiation scheme suitable for use in global atmospheric models that can represent these effects in both the shortwave and longwave. This two-part paper describes the development of such a scheme, which we refer to as the Speedy Algorithm for Radiative Transfer through C...

1997
Kevin E. Trenberth

The purpose of this paper is to put forward a new estimate, in the context of previous assessments, of the annual global mean energy budget. A description is provided of the source of each component to this budget. The top-ofatmosphere shortwave and longwave flux of energy is constrained by satellite observations. Partitioning of the radiative energy throughout the atmosphere is achieved throug...

2009
Kyle Tietze Timothy J. Garrett Jerôme Rièdi Andreas Stohl

Arctic clouds modulate the surface radiation budget by emitting longwave radiation and reflecting incident shortwave radiation. The Arctic is characterized by high levels of anthropogenic pollution that commonly forms a haze in winter and spring, due to long-range transport of aerosols primarily from Eastern Europe and Russia (Sirois and Barrie, 1999). During the Arctic winter and spring strong...

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