Results 91 to 100 of about 94,404 (228)

Depletion of ozone layer: Review in reference to galactic radiations

open access: yesEnvironment Conservation Journal
This review work represented the effect of various galactic activities, including solar cycles and some key elements of environmental pollution, in the variation of the total ozone column of the earth’s atmosphere.
Gulshan Kumar, Mohinder Kumar
doaj   +1 more source

Global impact of the Antarctic ozone hole: Simulations with a 3-D chemical transport model [PDF]

open access: yes
A study of the Antarctic ozone hole was made with a 3-D chemical transport model using linearized photochemistry for ozone based on observed distribution.
Garcia, Maria M., Prather, Michael J.
core   +1 more source

Application of Fast Fourier Transform to Ozone Data at Lagos, Nigeria [PDF]

open access: yes, 2008
Fast Fourier Transform (FFT) is a mathematical too l often used to represent tim e-varying real data set function /(1). In this paper, the FFT was applied to the measured stratospheric ozone data at Lagos from 1997 to 2002.
Akinyemi, M. L.
core  

A two-dimensional model of the quasi biennial oscillation of ozone [PDF]

open access: yes
The largest amplitudes of the observed Quasi Biennial Oscillation (QBO) in column ozone are found in high latitudes and this must be taken into account in any explanation of the increased depletion of ozone in the southern polar spring during the 1980's.
Gray, L. J., Pyle, J. A.
core   +1 more source

Mass accommodation coefficient measurements for HNO3, HCl and N2O5 on water, ice and aqueous sulfuric acid droplet surfaces [PDF]

open access: yes
Preliminary results are reported of the direct measurement of accommodation coefficients for HNO3, N2O5 and HCl on water drops, aqueous sulfuric acid drops and ice particles.
Davidovits, Paul   +6 more
core   +1 more source

Gamma-ray bursts and terrestrial planetary atmospheres

open access: yes, 2006
We describe results of modeling the effects on Earth-like planets of long-duration gamma-ray bursts (GRBs) within a few kiloparsecs. A primary effect is generation of nitrogen oxide compounds which deplete ozone.
A L Melott   +15 more
core   +1 more source

A one dimensional model study of the mechanism of halogen liberation and vertical transport in the polar troposphere [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
Sudden depletions of tropospheric ozone during spring were reported from the Arctic and also from Antarctic coastal sites. Field studies showed that those depletion events are caused by reactive halogen species, especially bromine compounds.
E. Lehrer   +3 more
doaj  

SMM mesospheric ozone measurements [PDF]

open access: yes
The main objective was to understand the secular and seasonal behavior of ozone in the lower mesosphere, 50 to 70 km. This altitude region is important in understanding the factors which determine ozone behavior.
Aikin, A. C.
core   +1 more source

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