Results 41 to 50 of about 8,307 (281)

The Antarctic stratospheric nitrogen hole: Southern Hemisphere and Antarctic springtime total nitrogen dioxide and total ozone variability as observed by Sentinel-5p TROPOMI [PDF]

Atmospheric Chemistry and Physics
Denitrification within the stratospheric vortex is a crucial process for Antarctic ozone hole formation, resulting in an analogous stratospheric “nitrogen hole”.
A. de Laat, J. van Geffen, P. Stammes, R. van der A, H. Eskes, J. P. Veefkind   +5 more
doaj   +1 more source

The evolution of zonally asymmetric austral ozone in a chemistry–climate model [PDF]

Atmospheric Chemistry and Physics, 2017
Asymmetry in the Southern Hemisphere stratospheric ozone hole is important due to both direct radiative heating and its effect on dynamics. It is also a strong indicator of the underlying quality of the stratospheric dynamics of a climate model.
F. Dennison, F. Dennison, F. Dennison, A. McDonald, O. Morgenstern, O. Morgenstern   +5 more
doaj   +1 more source

High resolution simulation of recent Arctic and Antarctic stratospheric chemical ozone loss compared to observations [PDF]

, 2005
Simulations of polar ozone losses were performed using the three-dimensional high-resolution (1° × 1°) chemical transport model MIMOSA-CHIM. Three Arctic winters 1999–2000, 2001–2002, 2002–2003 and three Antarctic winters 2001, 2002, and 2003 were ...
König-Langlo, Gert, Balestrie, Stefano, Godin-Beekmann, Sophie, Schlager, H., Tripathi, Om Prakash, Marchand, M., Volk, Michael, Pazmino, Andrea, Balestri, S., Jost, H. J., Lefevree, F., Hauchecorne, Alain, Johnson, B., von der Gathen, P., Goutail, F., Jost, H.J., König-Langlo, G., Godin-Beekmann, S., Stroh, Fred, Pazmiño, A., Gathen, Peter, Goutail, Florence, Marchand, Marion, Bui, T. P., Balestri, Stefano, Volk, C. Michael, Stroh, S., Gathen v. d., Peter, von der Gathen, Peter, Stroh, F., Volk, C. M., König-Lango, G., Tripathi, O.-P., Lefèvre, Franck, Lefèvre, F., Hauchecorne, A., Schlager, Hans, Deshler, T., Bui, T.P., Tripathi, O. P.   +39 more
core   +1 more source

Quantifying the contribution of transport to Antarctic springtime ozone column variability [PDF]

Atmospheric Chemistry and Physics
Quantifying chemical and dynamical drivers of Antarctic ozone variability remains important as stratospheric chlorine levels gradually reduce and the ozone hole recovers in response. While chemistry dominates the formation of the ozone hole in September,
H. E. Kessenich, A. Seppälä, D. Smale, C. J. Rodger, M. Weber   +4 more
doaj   +1 more source

News on the Antarctic Ozone Hole

Environmental Science and Pollution Research - International, 2005
[1] Varotsos C (2005): Modern computational techniques for environmental data; Application to the global ozone layer. Lect Notes Comput Sc 3516, 504–510 [2] Varotsos C, Ondov J, Efstathiou M (2005): Scaling properties of air pollution in Athens and Baltimore, Maryland.
openaire   +3 more sources

Unfinished business after five decades of ozone-layer science and policy

Nature Communications, 2020
The Montreal Protocol has begun to heal the Antarctic ozone hole and avoided more global warming than any other treaty. Still, recent research shows that new unexpected emissions of several chlorofluorocarbons, carbon tetrachloride, and ...
Susan Solomon, Joseph Alcamo, A. R. Ravishankara   +2 more
doaj   +1 more source

Investigation of the behavior of the atmospheric dynamics during occurrences of the ozone hole's secondary effect in southern Brazil [PDF]

Annales Geophysicae, 2019
The Antarctic ozone hole (AOH) directly influences the Antarctic region, where its levels can reach values below 220 DU. The temporary depletion of ozone in Antarctica generally occurs between the beginning and middle of August, during the austral
G. D. Bittencourt, D. K. Pinheiro, J. V. Bageston, H. Bencherif, H. Bencherif, L. A. Steffenel, L. Vaz Peres   +6 more
doaj   +1 more source

Ozone hole?

Eos, Transactions American Geophysical Union, 1994
Evidence for long‐term global ozone depletion due to CFCs is still lacking, according to University of Virginia (UVA) scientists, who recently poked a hole in a paper published last November in Science by researchers from the Canadian Atmospheric Environment Service.
openaire   +1 more source

Oxygen‐Tunnel Indium Tin Oxide Vertical Channel Transistors with Enhanced Current Density and Reliability for Monolithic 3D Compute‐In‐Memory Systems

Advanced Functional Materials, EarlyView.
Oxygen‐tunnel (OT) indium tin oxide (ITO) vertical channel transistors (VCTs) enable reliable, high‐density gain‐cell memory for monolithic 3D integration. A sandwiched SiN/SiO2/SiN OT stack selectively regulates oxygen transport, suppressing parasitic electrode oxidation while stabilizing channel oxygen vacancies, thereby suppressing carrier injection
Hyeonho Gu, Haksoon Jung, Yongwoo Lee, Hoichang Jeong, Yanfeng Zhao, Heesoo Yang, Minho Park, Hyeonjin Lee, Seunghun Baek, Minju Song, Junghwan Kim, Youngmin Jo, Hyunjin Park, Munhyeon Kim, Jae‐Joon Kim, Kyuho Jason Lee, Byungjo Kim, Jimin Kwon   +17 more
wiley   +1 more source

Changes in the polar vortex: Effects on Antarctic total ozone observations at various stations [PDF]

, 2011
October mean total column ozone data from four Antarctic stations form the basis for understanding the evolution of the ozone hole since 1960. While these stations show similar emergence of the ozone hole from 1960 to 1980, the records are divergent in ...
Bodeker, G. E., Hassler, Birgit, Solomon, Susan, Young, P. J.   +3 more
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