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Q.

When was the Ozone Hole First Discovered? And by Whom?

Asked by Vimal patidar, 06 Jun '07 11:31 am
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Answers (4)

 
1.

Once the ozone hole was discovered, scientist also worked on its causes. it was formation of ozone which allowed human beings on this earth. so i think instead of looking for past we should collectively think for the solution of this major problem. so atleast through internet lets spread msg of save earth.
Answered by vrushali sn, 06 Jun '07 12:30 pm

 
  
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2.

It was first discovered over antarctica in 1985 by american scientist.In india was discoveredin 1990.three sceintist Paul crutzen,mario molina and sherwood rowland was awarded nobel prize for their significant work.
Answered by mohit, 31 Aug '08 05:28 am

 
  
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3.

One of the most frequent examples is to make it appear that the Antarctic ozone "hole" was first discovered in 1956 by leaving out several relevant facts. Here is the version presented by Bolch and Lyons (page 85):

In 1956, G. M. B. Dobson, the Oxford professor for whom the Dobson unit of ozone measurement is named, first reported that in September-October 1956 at Halley Bay, Antarctica, atmospheric ozone was at a lower level than expected in the early spring, but that it returned to normal in November. In 1985 a British group, again at Halley Bay, reported that beginning in 1975 short-lived declines in atmospheric ozone were observed in October, but levels returned to normal in November. . . These reports are often taken to be empirical verification of man's destruction of the ozone. On the contrary, what those reports say is that ozone seems to vary seasonally at certain locations-which is no more alarming than a report that in Boston many flowers seem to die in October a ...more
Answered by Akhil Maheshwari, 06 Jun '07 11:33 am

 
  
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4.

Ozone depletion by human-produced CFCs was first hypothesized in 1974 (Molina and Rowland, 1974). The first evidence of ozone depletion was detected by ground-based instruments operated by the British Antarctic Survey at Halley Bay on the Antarctic coast in 1982. The results seemed so improbable that researchers collected data for three more years before finally publishing the first paper documenting the emergence of an ozone hole over Antarctica (Farman, 1985). Subsequent analysis of the data revealed that the hole began to appear in 1977. After the 1985 publication of Farman's paper, the question arose as to why satellite measurements of Antarctic ozone from the Nimbus-7 spacecraft had not found the hole. The satellite data was re-examined, and it was discovered that the computers analyzing the data were programmed to throw at any ozone holes below 180 Dobson Units as impossible. Once this problem was corrected, the satellite data clearly confirmed the existence of the hole.
Answered by Bala Murugan, 06 Jun '07 11:32 am

 
  
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