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rinselberg
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FEB 18, 03:47 PM
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As I understand it, these satellites that measure the amount of CO2 in the atmosphere using LIDAR are not measuring refraction. They are measuring absorption.
To be clear, these satellites are not measuring the refraction of the infrared light or IR energy as it is beamed into the atmosphere and reflected back to the satellite. What they are measuring is how much of the energy at specific wavelengths is absorbed by the atmosphere, by comparing the amount of energy that is transmitted by the satellite at that wavelength, against the amount of energy that is reflected back to the satellite at that wavelength. The difference is the measure of how much of the energy is absorbed by the atmosphere.
They use one (perhaps more than just one) of the IR absorption wavelengths for CO2 to measure the amount of CO2 in the atmosphere.
Calibration (as "cliffw" pointed out) is a MUST. It's not an afterthought with these projects, or anything that's being overlooked.
The oil and gas industry uses Infrared Absorption Spectroscopy. I'm sure of it. To measure how much of a particular chemical is showing up in a sample of something or other. They use it seven days a week, and everywhere from here to Kalamazoo. It's a no-brainer.
The substance or chemical absorbs, but the process is absorption. So it's important to mind your "b's" and "p's".
The instrument is sometimes referred to as a LIDAR sounder, but it is actually a "lighter". Because it's using light energy, not sound energy. The "sounder" nomenclature is being carried over from the acoustic sounders that you may well be familiar with, having worked in the oil and gas industry.[This message has been edited by rinselberg (edited 02-19-2023).]
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Wichita
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FEB 18, 04:00 PM
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 [This message has been edited by Wichita (edited 02-18-2023).]
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williegoat
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FEB 18, 04:34 PM
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| quote | Originally posted by rinselberg:
As I understand it, these satellites that measure the amount of CO2 in the atmosphere using LIDAR "sounders" (actually, they are "lighters", or IR or infrared "lighters") are not measuring refraction. They are measuring absorption.
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My reply was only an answer to cliffw's question. Nothing more, nothing less. In order to calculate the speed of light through a specific medium, it is necessary to know the refraction index (i.e. the optical density) of that specific medium.
In general, when someone quotes the speed of light, he is providing the speed through a vacuum and the figure is rounded. I always quote the figure of 186,000 miles per second, however I expect others to understand that that number isn't exact and is through a vacuum.
At some point, I have to assume that others have a certain level of experience and knowledge. If someone doesn't know, he may ask. This is why I often pose questions that are designed to make people think, to explore their world from other perspectives.
"I meant what I said and I said what I meant." ~ Horton
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Raydar
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FEB 18, 08:40 PM
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| quote | Originally posted by ray b:
...
and want you to hate greta even harder while never noticing the warming and oceans becoming acid
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So now the oceans are "becoming acid"? Instead of rising? (Where the hell did that come from?)
I suppose they needed a new boogeyman, since elites seem to be grabbing up beachfront property with impunity. Be a shame if the ocean swallowed up Obama's beach house. 
Jeez... I wish it was like when I was ten, and all the crybabies were fretting about a "new ice age".
Yeah... this bullsh!t has been going on for over 50 years. Modified occasionally to suit the "crisis du jour". And the oceans are still pretty much where I remember them being. More importantly, they're not where I don't remember them being.[This message has been edited by Raydar (edited 02-18-2023).]
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MidEngineManiac
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FEB 18, 09:22 PM
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But, being acid, they are all sorts of colors I dont remember.
And have you SEEN the dragons on the beach ?
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rinselberg
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FEB 18, 10:53 PM
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| quote | Originally posted by Raydar:
So now the oceans are "becoming acid"? Instead of rising? <SNIP> |
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If you're interested in what's online, use an online search engine (Google, or whatever) and search for the two-word phrase "ocean acidification".
You can't do better than starting with this. It opens with two paragraphs and a diagram that will have you almost up to full speed in the proverbial blink of an eye.
"Ocean acidification"
National Oceanic and Atmospheric Administration
https://www.noaa.gov/educat.../ocean-acidification
It's oceans becoming more acidic because of human-related CO2 emissions, and it's not "instead" of sea levels rising. It's and.
It's not something that is only now or only recently getting news coverage.[This message has been edited by rinselberg (edited 02-18-2023).]
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cliffw
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FEB 19, 08:18 PM
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| quote | Originally posted by rinselberg:
The oil and gas industry uses Infrared Absorption Spectroscopy. I'm sure of it. To measure how much of a particular chemical is showing up in a sample of something or other. They use it seven days a week, and everywhere from here to Kalamazoo. It's a no-brainer.
The substance or chemical absorbs, but the process is absorption. So it's important to mind your "b's" and "p's".
The instrument is sometimes referred to as a LIDAR sounder, but it is actually a "lighter". Because it's using light energy, not sound energy. The "sounder" nomenclature is being carried over from the acoustic sounders that you may well be familiar with, having worked in the oil and gas industry.
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You may know that the oil and gas industry has been my life long vocation. I don't know about the complete oil and gas industry but I do know about drilling wells and more. We have never used light energy LIDAR.
You mention "samples". Everytime I have drilled a well, we had "Mud Loggers", who analyze samples. They work under / for geologists. I have known many of them while on the job, asking questions. Watching the complete analysis of said samples. My brother in law is a mud logger. Never have I seen or heard of LIDAR.
| quote | Originally posted by rinselberg:
The oil and gas industry uses Infrared Absorption Spectroscopy. I'm sure of it. To measure how much of a particular chemical is showing up in a sample of something or other. They use it seven days a week, and everywhere from here to Kalamazoo. It's a no-brainer. |
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What branch of the oil / gas industry is LIDAR used ?
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cliffw
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FEB 19, 08:23 PM
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| quote | Originally posted by Raydar:
So now the oceans are "becoming acid"? Instead of rising?
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No silly. Al Gore said they are boiling.
| quote | Originally posted by Raydar:
(Where the hell did that come from?) |
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Meet your new boogeyman.[This message has been edited by cliffw (edited 02-19-2023).]
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rinselberg
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FEB 19, 08:51 PM
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| quote | Originally posted by cliffw:
What branch of the oil / gas industry is LIDAR used? |
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Mapping of potential production sites and dealing with oil spills
"The Increasing Usage Of LiDAR Within The Oil And Gas Industry"
Tristone Holdings Ltd., March 5, 2021.
https://tristoneholdings.co...il-and-gas-industry/[This message has been edited by rinselberg (edited 02-19-2023).]
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ray b
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FEB 20, 09:19 AM
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| quote | Originally posted by Raydar:
So now the oceans are "becoming acid"? Instead of rising? (Where the hell did that come from?)
I suppose they needed a new boogeyman, since elites seem to be grabbing up beachfront property with impunity. Be a shame if the ocean swallowed up Obama's beach house.
Jeez... I wish it was like when I was ten, and all the crybabies were fretting about a "new ice age".
Yeah... this bullsh!t has been going on for over 50 years. Modified occasionally to suit the "crisis du jour". And the oceans are still pretty much where I remember them being. More importantly, they're not where I don't remember them being.
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came from the early where is the CO2 problem
about 1/2 went missing as it was not staying in the air
one reason the con's LOL at gore all the CO2 was not where they thought it was
it was dissolving in the oceans good that it was not in the air
BUT is raises the Ph values a bit
that effects animals that have shells by messing with their ability
to fix the lime into their shell
lots of the little cridders need their shells or they die off
and other animals need to eat the smaller guys
we eat clams 0sters scallops mussels also
lobster crabs and fish that eat them
will this happen quickly no it is a slow long process
but is very hard to stop or reverse
and something they did no know could happen
are there other effects of extra CO2 we do not know YET ? maybe
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