Results 281 to 290 of about 4,122,931 (339)

Observation of atmospheric neutrinos

Reviews of Modern Physics, 2001
Atmospheric neutrinos arise from the decay of secondaries (π, K and μ) produced by primary cosmic-ray interactions in the atmosphere. In the energy range below 1GeV, where all secondaries decay, we roughly expect that (v μ + v μ )/(v e + v e ) ≃2. This is because a π-decay produces a v μ and a μ; the μ, when it decays, produces another v μ and a v e ...
Takaaki Kajita, Yoji Totsuka
openaire   +3 more sources

Atmospheric Observation and Emission of HFC-134a in China and Its Four Cities.

Environmental Science and Technology, 2023
1,1,1,2-Tetrafluoroethane (HFC-134a) is widely used as a refrigerant to replace dichlorodifluoromethane (CFC-12), and a small amount of it is used in the foam and medical aerosol sectors, with a high global warming potential and fast-increasing ...
L. Yi, Xueying Xiang, Xingchen Zhao, Weiguang Xu, Pengnan Jiang, Jianxin Hu   +5 more
semanticscholar   +1 more source

Mid carbon (C6+-C29+) in refractory black carbon aerosols is a potential tracer of open burning of rice straw: Insights from atmospheric observation and emission source studies

, 2020
Biomass burning (BB) is one of the major sources of atmospheric aerosols. These aerosols cause global and regional issues such as adverse effects on human health, as well as contributing to climate change.
Y. Fujitani, A. Fushimi, K. Saitoh, Kei Sato, A. Takami, Y. Kondo, K. Tanabe, S. Kobayashi   +7 more
semanticscholar   +1 more source

Effect of atmospheric stability on air pollutant concentration and its generalization for real and idealized urban block models based on field observation data and wind tunnel experiments

, 2020
Near-surface atmospheric stability has a large influence on air pollutant diffusion in urban canopy. However, few systematic and quantitative studies have analyzed the effects of atmospheric stabilities on urban air pollutant concentration due to the ...
Tingting Hu, R. Yoshie
semanticscholar   +1 more source

Atmospheric processes and observations

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2003
The central role of the atmosphere in abrupt climate change is proposed and discussed. This discussion is given in the context of the poleward transport of energy in the climate system and of climate variability and change. A number of examples based on observational and model data are used to illustrate the ideas.
openaire   +2 more sources

Atmospheric glories: simulations and observations

Applied Optics, 2005
Mie theory can be used to provide full-color simulations of atmospheric glories. Comparison of such simulations with images of real glories suggests that most glories are caused by spherical water droplets with radii between 4 and 25 microm. This paper also examines the appearance of glories taking into account the size of the droplets and the width of
openaire   +2 more sources

Observations by Atmospheric Radar

2013
Atmospheric radars are capable of continuously monitoring echo power spectrum in the vicinity of the zenith. From the spectrum, echo intensity, Doppler velocity, and velocity spectrum width are derivable over the wide altitude range 1–100 km in the Earth’s atmosphere. In this chapter, observations by atmospheric radar are discussed.
Shoichiro Fukao, Kyosuke Hamazu
openaire   +1 more source

Atmospheric Changes and Observations

2019
Earth’s atmosphere is usually air layer of the solid Earth outer, which is an important part of the Earth’s natural environment. It is the condition indispensable to the survival of life on Earth and also protective for life on Earth. With developments and advances in space technologies, human activities are involving into the upper atmosphere and ...
Shuanggen Jin, R. Jin, X. Liu
openaire   +1 more source