CO2 ‘Greenhouse Effect’ Is Cooling Antarctica!
A research paper by the Helmholtz Centre for Polar and Marine Research in Germany presents damning analysis of the ‘greenhouse effect’ over central Antarctica. After studying measurements and models the ‘greenhouse effect’ is proven to be around zero or even negative.
An increase in CO2 concentration leads to an increased long-wave energy loss to space over central Antarctica, which cools the earth-atmosphere system. Increasing CO2 causes some warming only in the portion of the atmosphere (the troposphere) where temperatures decline with altitude so that the radiative emissions from CO2 at higher altitudes are less than at lower altitudes.
But the average altitude of the ice surface of Antarctica (over land) is 2126 m, and the ice surface in East Antarctica reaches 4082 m, which puts it above the troposphere. There in the stratosphere, temperatures increase with altitude, so CO2 at higher altitudes emit more radiation, which can escape to space without being re-absorbed, than CO2 nearer the ice surface due to its lower temperature.
The temperature trend at the South Pole from 1957 – 2013 is 0.03 ± 0.12 °C, or no significant temperature change. The most negative greenhouse effect occurs in autumn with its peak in March, which is also the season with the strongest surface cooling.
Read the full paper at https://epic.awi.de/38614/1/BzPM_0692_2015.pdf
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Alan Thorpe
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When did the troposphere shrink to less than 4082m?
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William Morgan
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Well, I’m aware that the atmosphere is flattened at the poles, which is one of the reasons why Denali in Alaska can be a dangerous mountain to climb. However, I’m not aware that the troposphere descends to ~ 4000m. Can anyone illuminate?
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John Nicol
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The troposphere upper boundary (Tropopause) is certainly much lower at the poles but the actual height varies from time to time. What the average height might be does not seem to be well known or at least not readily available.
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jerry krause
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Hi Readers,
What follows is the US Climate Reference Network (USCRN) project data for Barrow AK during 2012. (https://www1.ncdc.noaa.gov/pub/data/uscrn/products/hourly02/2012/CRNH0203-2012-AK_Barrow_4_ENE.txt)
The first is for January 7th at 2100hrs. -23.2, -21.9, -24.3 are the ave. air temperature, the maximum air temperature, and the minimum air temperature for 9pm and the hour before. Celsius temperatures. -23.7 0 -22.4 0 -24.4 are the ave, max, min, surface temperature.
27516 20120108 0600 20120107 2100 2.404 -156.61 71.32 -22.0 -23.2 -21.9 -24.3 -9999.0 0 0 0 0 0 0 R -23.7 0 -22.4 0 -24.4
27516 20120110 1800 20120110 0900 2.404 -156.61 71.32 -38.0 -37.5 -36.4 -38.0 -9999.0 0 0 0 0 0 0 R -37.8 0 -37.1 0 -38.4
27516 20120204 2100 20120204 1200 2.404 -156.61 71.32 -40.9 -40.4 -39.7 -40.9 -9999.0 0 0 0 0 0 0 R -40.5 0 -39.9 0 -41.0
27516 20120205 0900 20120205 0000 2.404 -156.61 71.32 -25.8 -26.1 -25.8 -26.5 -9999.0 0 0 0 0 0 0 R -26.2 0 -25.9 0 -26.5
This data of these four hours is consistent with that of the other hours when there is no 1200hr solar radiation. Notice that all surface temperature are slightly lower than the all the air temperatures.
This data of these four hours is consistent with that of the other hours when there is no 1200hr solar radiation. Notice that all surface temperature are slightly lower than the all the air temperatures. But I consider this slightly colder to not be enough difference to try explain the cause of any differences.
I have reread the article and the comments and maybe the data I have cited is just as irrelevant as the article seems to be. But I still make my comment because I believe in actual data (max – min). And the temperatures differences between those of one hour and the significant differences between hours of different days suggest something is occurring which has nothing to do with carbon dioxide.
Have a good day, Jerry
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Squidly
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Umm, NO .. big fail! … It is physically impossible for CO2 (or any gas) to “cause warming” of any kind
Sorry, big fail !!!
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