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Ozone layer most fragile on record
"Fears over increase in skin cancer as scientists report that climate change
continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. Cheers, Alastair. |
Ozone layer most fragile on record
In article , "Alastair McDonald" k writes:
"Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Or, say, increased Solar UV penetration reduce surface temperature? And is this year's Northern Hemisphere spring and cooler than usual, anyway? Cheers, keith --- Iraq: 6.5 thousand million pounds, 80 UK lives, and counting... 100,000+ civilian casualties, largely of coalition bombing... |
Ozone layer most fragile on record
In article , "Alastair McDonald" k writes:
"Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Or, say, increased Solar UV penetration reduce surface temperature? And is this year's Northern Hemisphere spring and cooler than usual, anyway? Cheers, keith --- Iraq: 6.5 thousand million pounds, 80 UK lives, and counting... 100,000+ civilian casualties, largely of coalition bombing... |
Ozone layer most fragile on record
"Keith Dancey" wrote in message
In article , "Alastair McDonald" k writes: http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. You are a gullible person. By the way, were icing over records broken in the Arctic this winter? How might reduced stratospheric ozone reduce tropospheric temperature? Or, say, increased Solar UV penetration reduce surface temperature? And is this year's Northern Hemisphere spring any cooler than usual, anyway? One would have thought that increased UV light coming through to the sea would help to mitigat these fluctuations as the increased heat would produce more cloud which would cut the UV incoming which would .... (Nice that this stuff seems to fall on oceans btw!) Well how long have these records been kept anyway, is it 20 years yet? That a long time in climate modelling is it? -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG |
Ozone layer most fragile on record
"Keith Dancey" wrote in message
In article , "Alastair McDonald" k writes: http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. You are a gullible person. By the way, were icing over records broken in the Arctic this winter? How might reduced stratospheric ozone reduce tropospheric temperature? Or, say, increased Solar UV penetration reduce surface temperature? And is this year's Northern Hemisphere spring any cooler than usual, anyway? One would have thought that increased UV light coming through to the sea would help to mitigat these fluctuations as the increased heat would produce more cloud which would cut the UV incoming which would .... (Nice that this stuff seems to fall on oceans btw!) Well how long have these records been kept anyway, is it 20 years yet? That a long time in climate modelling is it? -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG |
Ozone layer most fragile on record
"Keith Dancey" wrote in message
In article , "Alastair McDonald" k writes: http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. You are a gullible person. By the way, were icing over records broken in the Arctic this winter? How might reduced stratospheric ozone reduce tropospheric temperature? Or, say, increased Solar UV penetration reduce surface temperature? And is this year's Northern Hemisphere spring any cooler than usual, anyway? One would have thought that increased UV light coming through to the sea would help to mitigat these fluctuations as the increased heat would produce more cloud which would cut the UV incoming which would .... (Nice that this stuff seems to fall on oceans btw!) Well how long have these records been kept anyway, is it 20 years yet? That a long time in climate modelling is it? -- Posted via Mailgate.ORG Server - http://www.Mailgate.ORG |
Ozone layer most fragile on record
"Keith Dancey" wrote in message ... In article , "Alastair McDonald" k writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. Cheers, Alastair. |
Ozone layer most fragile on record
"Keith Dancey" wrote in message ... In article , "Alastair McDonald" k writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. Cheers, Alastair. |
Ozone layer most fragile on record
"Keith Dancey" wrote in message ... In article , "Alastair McDonald" k writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. Cheers, Alastair. |
Ozone layer most fragile on record
"Alastair McDonald" k wrote in message ... "Keith Dancey" wrote in message ... In article , "Alastair McDonald" k writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. Alastair, what controls the average temperature at the surface is *not* the tropopause temperature. It is due to a combination of radiation effects both longwave and shortwave which in turn are non-linearly dependent on surface characteristics (albedo etc), moisture, cloud cover and the concentration of "greenhouse gases". A lower tropopause temperature would imply both a deeper troposphere in tropical airmasses and a shallower troposphere in arctic airmasses. Will. -- " Stuff the thought police, I don't care anymore, I am free, I am me - quack quack " ------------------------------------------------------------------------------- A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------- |
Ozone layer most fragile on record
"Alastair McDonald" k wrote in message ... "Keith Dancey" wrote in message ... In article , "Alastair McDonald" k writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. Alastair, what controls the average temperature at the surface is *not* the tropopause temperature. It is due to a combination of radiation effects both longwave and shortwave which in turn are non-linearly dependent on surface characteristics (albedo etc), moisture, cloud cover and the concentration of "greenhouse gases". A lower tropopause temperature would imply both a deeper troposphere in tropical airmasses and a shallower troposphere in arctic airmasses. Will. -- " Stuff the thought police, I don't care anymore, I am free, I am me - quack quack " ------------------------------------------------------------------------------- A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------- |
Ozone layer most fragile on record
"Alastair McDonald" k wrote in message ... "Keith Dancey" wrote in message ... In article , "Alastair McDonald" k writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. Alastair, what controls the average temperature at the surface is *not* the tropopause temperature. It is due to a combination of radiation effects both longwave and shortwave which in turn are non-linearly dependent on surface characteristics (albedo etc), moisture, cloud cover and the concentration of "greenhouse gases". A lower tropopause temperature would imply both a deeper troposphere in tropical airmasses and a shallower troposphere in arctic airmasses. Will. -- " Stuff the thought police, I don't care anymore, I am free, I am me - quack quack " ------------------------------------------------------------------------------- A COL BH site in East Dartmoor at Haytor, Devon 310m asl (1017 feet). mailto: www: http://www.lyneside.demon.co.uk DISCLAIMER - All views and opinions expressed by myself are personal and do not necessarily represent those of my employer. ------------------------------------------------------------------------------- |
Ozone layer most fragile on record
"Will Hand" wrote in message ... "Alastair McDonald" k wrote in message ... "Keith Dancey" wrote in message ... How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Alastair, what controls the average temperature at the surface is *not* the tropopause temperature. It is due to a combination of radiation effects both longwave and shortwave which in turn are non-linearly dependent on surface characteristics (albedo etc), moisture, cloud cover and the concentration of "greenhouse gases". I did not mean to imply that the stratospheric temperature was the only control on the average surface temperature. I was attempting to answer Keith's question. The factors you list all affect the lapse rate. If one assumes that the lapse rate does not change, and the height of the tropopause remains constant, then it is easy to see how the surface temperature changes with that of the tropopause. In other words, if the things you list remain unchanged, then a cooling of the stratosphere will lead to a cooling at the surface. Or are you denying that? Cheers, Alastair. |
Ozone layer most fragile on record
"Will Hand" wrote in message ... "Alastair McDonald" k wrote in message ... "Keith Dancey" wrote in message ... How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Alastair, what controls the average temperature at the surface is *not* the tropopause temperature. It is due to a combination of radiation effects both longwave and shortwave which in turn are non-linearly dependent on surface characteristics (albedo etc), moisture, cloud cover and the concentration of "greenhouse gases". I did not mean to imply that the stratospheric temperature was the only control on the average surface temperature. I was attempting to answer Keith's question. The factors you list all affect the lapse rate. If one assumes that the lapse rate does not change, and the height of the tropopause remains constant, then it is easy to see how the surface temperature changes with that of the tropopause. In other words, if the things you list remain unchanged, then a cooling of the stratosphere will lead to a cooling at the surface. Or are you denying that? Cheers, Alastair. |
Ozone layer most fragile on record
"Will Hand" wrote in message ... "Alastair McDonald" k wrote in message ... "Keith Dancey" wrote in message ... How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Alastair, what controls the average temperature at the surface is *not* the tropopause temperature. It is due to a combination of radiation effects both longwave and shortwave which in turn are non-linearly dependent on surface characteristics (albedo etc), moisture, cloud cover and the concentration of "greenhouse gases". I did not mean to imply that the stratospheric temperature was the only control on the average surface temperature. I was attempting to answer Keith's question. The factors you list all affect the lapse rate. If one assumes that the lapse rate does not change, and the height of the tropopause remains constant, then it is easy to see how the surface temperature changes with that of the tropopause. In other words, if the things you list remain unchanged, then a cooling of the stratosphere will lead to a cooling at the surface. Or are you denying that? Cheers, Alastair. |
Ozone layer most fragile on record
In article , "Alastair McDonald" k writes:
"Keith Dancey" wrote in message ... In article , "Alastair McDonald" writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. The stratosphere is cooler because greenhouse gases in the troposphere are preventing a proportion of the outgoing longwave radiation from reaching it and heating it. This drop in stratospheric temperatures increases the efficiency of the photochemical reactions which destroy ozone... The altitude of the tropopause adjusts to the changes in temperature of the stratosphere, so your standard lapse rate still holds: the surface temperature is not effected. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. Ummmmm... And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. There have been much greater ozone holes over the Antarctic, over a much longer period of time, but I have not noticed Southern Hemisphere springs to be reported as "cooler than expected". There have also been Northern Hemisphere ozone holes before, too, but I have not noticed any corresponding Northern Hemisphere spring-time "cooling". If the correlation isn't showing up on the records, and the theory doesn't hang together, then I think the idea is mistaken. Cheers, keith --- Iraq: 6.5 thousand million pounds, 80 UK lives, and counting... 100,000+ civilian casualties, largely of coalition bombing... |
Ozone layer most fragile on record
In article , "Alastair McDonald" k writes:
"Keith Dancey" wrote in message ... In article , "Alastair McDonald" writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. The stratosphere is cooler because greenhouse gases in the troposphere are preventing a proportion of the outgoing longwave radiation from reaching it and heating it. This drop in stratospheric temperatures increases the efficiency of the photochemical reactions which destroy ozone... The altitude of the tropopause adjusts to the changes in temperature of the stratosphere, so your standard lapse rate still holds: the surface temperature is not effected. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. Ummmmm... And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. There have been much greater ozone holes over the Antarctic, over a much longer period of time, but I have not noticed Southern Hemisphere springs to be reported as "cooler than expected". There have also been Northern Hemisphere ozone holes before, too, but I have not noticed any corresponding Northern Hemisphere spring-time "cooling". If the correlation isn't showing up on the records, and the theory doesn't hang together, then I think the idea is mistaken. Cheers, keith --- Iraq: 6.5 thousand million pounds, 80 UK lives, and counting... 100,000+ civilian casualties, largely of coalition bombing... |
Ozone layer most fragile on record
In article , "Alastair McDonald" k writes:
"Keith Dancey" wrote in message ... In article , "Alastair McDonald" writes: "Fears over increase in skin cancer as scientists report that climate change continues to destroy the earth's protection." See; http://www.guardian.co.uk/life/scien...471075,00.html This article provides confirmation to me that the ozone layer over the NH could be the cause of this year's "cooler" spring. How might reduced stratospheric ozone reduce tropospheric temperature? Because the ozone is not trapping the radiation in the stratosphere, the stratosphere is cooler. The stratosphere forms an inversion layer at the tropopause and this temperature controls the average temperature at the surface via a standard lapse rate. Putting it another way, the tropopause temperature is the minimum temperature of the troposphere. An ozone hole will reduce that minimum temperature and so all the tropopause can become cooler. The stratosphere is cooler because greenhouse gases in the troposphere are preventing a proportion of the outgoing longwave radiation from reaching it and heating it. This drop in stratospheric temperatures increases the efficiency of the photochemical reactions which destroy ozone... The altitude of the tropopause adjusts to the changes in temperature of the stratosphere, so your standard lapse rate still holds: the surface temperature is not effected. Or, say, increased Solar UV penetration reduce surface temperature? IMHO, The high energy photons of UV light tend to be absorbed by latent heat and so cause little sensible heating. Ummmmm... And is this year's Northern Hemisphere spring and cooler than usual, anyway? It is cooler than it would be due to global warming. There have been much greater ozone holes over the Antarctic, over a much longer period of time, but I have not noticed Southern Hemisphere springs to be reported as "cooler than expected". There have also been Northern Hemisphere ozone holes before, too, but I have not noticed any corresponding Northern Hemisphere spring-time "cooling". If the correlation isn't showing up on the records, and the theory doesn't hang together, then I think the idea is mistaken. Cheers, keith --- Iraq: 6.5 thousand million pounds, 80 UK lives, and counting... 100,000+ civilian casualties, largely of coalition bombing... |
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