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Astronomy - Ch. 9.1: Earth's Atmosphere (33 of 61) What is the Diurnal Temperature Range?
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- čas přidán 10. 10. 2018
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In this video I will explain what is the diurnal temperature range. It is the range of the lowest temperature in a 24-hour period to the highest temperature in the same 24 hours. I will also explain why the smaller the range, the more effective the greenhouse gases; and the larger the range the less effective the greenhouse gases.
Next video in this series can be seen at:
• Astronomy - Ch. 9.1: E...
I think you've got that logic backwards, but only if you've misunderstood the physics of the so-called "greenhouse effect" in Earth's troposphere (along with >99% of other people I've read-heard "explaining it") and that of course goes back to my simple question that you said you might study one day and that I don't yet have the answer to either. If It turns out I was incorrect in my inferences from basics when I pondered this for 99 hours in 2018 then you might well be correct here but if It turns out that I was correct in my inferences then you absolutely, definitely have it backwards. I just asked a physicist one of the questions I asked you and he responded like "Why don't you work it out yourself" so no Joy there, same as usual. A prior physicist I asked said I was wrong and then gave an example that directly contradicted what he had asserted and when I carefully pointed out that he had given an example that directly contradicted what he had asserted he replied "These are just examples" so I gave up on him, bods who think examples of something can randomly not match reality, same as usual. That was on Skeptical Science (SKS) Web site "Why greenhouse effect doesn't violate 2nd Law of thermodynamics" thread. It's a wasteland out there.
What logic is backwards?
@@MichelvanBiezen Per the 1st comment I made against your videos I've nothing further to inform until I manage to find the relevant established physics of gases that I need. You informed in a response that you do not know and you will also study it (you'll beat me by months or years because I'm old, lazy & this is only a minor bit of a hobby interest for me).
Mr. Professor on the Sahara desert we have the greatest difference in temperature between day and night in comparison to cities. Why is that?
Ii is not so much the difference between the desert and "cities", but between the desert and regions with a wetter climate. There is very little humidity in the desert. Water vapor is by far the most potent greenhouse gas, so therefore with less water vapor in the atmosphere the greenhouse effect is less effective and more radiation will reach space cooling the region down more quickly during the night.
@@MichelvanBiezen thank You.
The diurnal temperature range is a very interesting concept. It is easy to measure and it should allow a better estimation of the CO2 influence relative to water. Would it be possible to devise experiments that disprove the IPCC model assumptions?
The diurnal temperature range (which differs for different amounts of water vapor in the atmosphere) simply shows that water vapor is a very big contributor to the heat retention of the atmosphere and we can directly measure the relationship.
@@MichelvanBiezen Thats clear. Whats missing is a quantitative analysis. "Very big contributor" is not quantitative.
There are still the official numbers that from the 33°C rise due to GHGs, 26°C is due to water and 7°C are due to CO2. A figure that is hardly plausible given the concentration factor of 20-30 between those gases.
Sir, why are the temperature in the Diurnal Temperature Range written as Fahrenheit degree or Celsius degree instead of degree Celsius or degree Fahrenheit?
degree Celsius means the actual temperature Celsius degree means the change or difference in temperature
@@MichelvanBiezen Thank you sir