scholarly journals Non-uniform dissipation of the Antarctic ozone hole

MAUSAM ◽  
2022 ◽  
Vol 45 (1) ◽  
pp. 23-28
Author(s):  
R.P. KANE
Keyword(s):  
Ozone Hole ◽  
South Pole ◽  
The South ◽  
Antarctic Ozone ◽  
The Antarctic ◽  
Antarctic Ozone Hole

The evolution o f the Antarct ic ozone hole is illustrated fo r 1985·1989 and 1990 springs.A detailed study for 1986.19 89 and 1990 events indicates that the evolution. which occurs in ea rly October . isfairly unifo rm over the South Pole. Hence the fluctuations observed at Syowa, McMurdo and Palmer duringthis period arc mostly due to the vortex \''3.11 passing in and out over these periferial loca t ions. However, later inNovember when the hole is dissipating, the vortex may shift from the South Pole in any direction and may alsocome back or intensify on Sou th Pole before finally disappearing. At South Pole. the recovery started by Octoberend in 19S5. 19R6 and 1988 but later in 19R7 (November end), 1989 {November beginning) and 1990 (Novemberend •.

scholarly journals Has the Antarctic Vortex Split before 2002?

2005 ◽  
Vol 62 (3) ◽  
pp. 581-588 ◽  
Author(s):  
H. K. Roscoe ◽  
J. D. Shanklin ◽  
S. R. Colwell
Keyword(s):  
Ozone Hole ◽  
South Pole ◽  
Significant Modification ◽  
The South ◽  
Ozone Loss ◽  
Stratospheric Temperature ◽  
Antarctic Ozone ◽  
The Antarctic ◽  
Antarctic Ozone Hole ◽  
Vortex Split

Abstract In late September 2002, the Antarctic ozone hole was seen to split into two parts, resulting in large increases in ozone at some stations and the potential for significant modification of chlorofluorocarbon (CFC)-induced ozone loss. The phenomenon was dynamical (a split vortex), causing large increases in stratospheric temperature above stations normally within the vortex. Temperatures at Halley, Antarctica, at 30 hPa increased by over 60 K, and temperatures at South Pole at 100 hPa increased by over 25 K. It is important to know if this has happened before, since if it happens in the future, it would significantly alter the total hemispheric ozone loss due to chlorine from CFCs, particularly if it happens in August or September. Temperatures in winter and spring measured at Halley or the South Pole since 1957 and 1961, respectively, show no other comparable increases until the final warming in late spring, except for two dates in the 1980s at Halley when meteorological analyses show no vortex split. There are very few periods of measurements missing at both Halley and the South Pole, and analyses in those few periods show no vortex split. Measurements in August and September at sites normally near the edge of the vortex show very few suspicious dates, and analyses of those few suspicious dates again show no vortex split. It is concluded that the vortex has probably not split before the final warming since Antarctic records began in the late 1950s, and almost certainly not in August or September.

scholarly journals Influence of the Antarctic Ozone Hole over the South of Brazil in 2008 and 2009

2010 ◽  
pp. 33-37 ◽  
Author(s):  
Damaris Kirsch Pinheiro ◽  
Neusa Paes Leme ◽  
Lucas Vaz Peres ◽  
Elenice Kall
Keyword(s):  
Ozone Hole ◽  
The South ◽  
Antarctic Ozone ◽  
South Of Brazil ◽  
The Antarctic ◽  
Antarctic Ozone Hole

scholarly journals Synoptic Weather System Associated with Influence of the Antarctic Ozone Hole over the South of Brazil on October, 13TH, 2010

2012 ◽  
pp. 30-33
Author(s):  
Lucas Vaz Peres ◽  
Natália Machado Crespo ◽  
Otávio Krauspenhar da Silva ◽  
Naiara Hupfer ◽  
Vagner Anabor ◽  
...  
Keyword(s):  
Ozone Hole ◽  
The South ◽  
Weather System ◽  
Synoptic Weather ◽  
Antarctic Ozone ◽  
South Of Brazil ◽  
The Antarctic ◽  
Antarctic Ozone Hole

The discovery of the Antarctic ozone hole

Nature ◽  
2019 ◽  
Vol 575 (7781) ◽  
pp. 46-47 ◽  
Author(s):  
Susan Solomon
Keyword(s):  
Ozone Hole ◽  
Antarctic Ozone ◽  
The Antarctic ◽  
Antarctic Ozone Hole

scholarly journals On the size of the Antarctic ozone hole

2004 ◽  
Vol 31 (21) ◽  
pp. n/a-n/a ◽  
Author(s):  
Paul A. Newman ◽  
S. Randolph Kawa ◽  
Eric R. Nash
Keyword(s):  
Ozone Hole ◽  
Antarctic Ozone ◽  
The Antarctic ◽  
Antarctic Ozone Hole

Subtropical Rainfall and the Antarctic Ozone Hole

Science ◽  
2011 ◽  
Vol 332 (6032) ◽  
pp. 925-926 ◽  
Author(s):  
S. B. Feldstein
Keyword(s):  
Ozone Hole ◽  
Antarctic Ozone ◽  
The Antarctic ◽  
Antarctic Ozone Hole
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