Comments on: CO2 monthly mean at Mauna Loa leveling off, dropping?

By: Qohel » Blog Archive » Human Produced CO2 Causing Irreversible Ocean Damage. Oh Puh-leese!

Sat, 31 Jan 2009 00:08:09 +0000

[...] addition it is becoming clearer than human impact on CO2 levels is so small that it cannot even be reliably discerned against the background of natural processes and [...]

By: megan

megan — Thu, 04 Dec 2008 13:11:25 +0000

i believe that mauna loa is awakining!

By: for4zim

for4zim — Tue, 18 Nov 2008 08:28:39 +0000

It will be interesting to see in the coming months what happens globally, should we see a drop-off or leveling of global CO2 in response to our quiet sun and La Nina, it will be difficult for AGW proponents to explain.
After having waited a couple of months an update would be due. As I see it, with CO2 still rising globally and even stronger at Mauna Loa, the difficulty to explain is now (again) on the side of those who are AGW opponents.
By the way, just the comment above by kwik shows that this site fails to fulfill any educational purpose. Otherwise it should have become clear, that with many measuring stations in the world in the frame work of Global Atmosphere Watch (GAW) we clearly don’t depend on just one station at Mauna Loa.

By: kwik

kwik — Mon, 11 Aug 2008 12:55:16 +0000

Hopefully soon someone with a lot of money will put up more CO2 measuring stations….

Strange its only one, if its so important.

By: Mauna Loa CO2 January to July trend goes negative first time in history « Watts Up With That?

Mon, 04 Aug 2008 07:11:42 +0000

[...] Mauna Loa CO2 January to July trend goes negative first time in history 4 08 2008 Back on April 6th of this year I made an observation about the trend in the CO2 data from the Mauna Loa Observatory dropping and possibly “leveling off”. [...]

By: Alexander Croyant

Alexander Croyant — Mon, 21 Jul 2008 19:15:07 +0000

I found this note interesting in light of the suspicious jump in the May and June numbers. It was in the explanatory notes at ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_mm_mlo.txt which lists the monthly data from Mauna Loa:

“NOTE: In general, the data presented for the last year are subject to change, depending on recalibration of the reference gas mixtures used, and other quality control procedures. Occasionally, earlier years may also be changed for the same reasons. Usually these changes are minor.”

So, it is possible that someone has his statistical thumb on the scale in terms of that recalibration function. Anyone know more about how that statistical work gets done, and if there is room for monkey business?

By: Darth Lindzen

Darth Lindzen — Tue, 17 Jun 2008 00:06:04 +0000

No surprise here, May 2007 to May 2008 saw an increase of 1.95

By: dscott

dscott — Thu, 05 Jun 2008 15:26:59 +0000

The new CO2 data and graph is out today, they set a new record for May. ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_mm_mlo.txt This seems very suspicous to me when you look at how the graph looks in relation to the other years.

By: dscott

dscott — Mon, 02 Jun 2008 13:37:13 +0000

In a day or two we should have the May CO2 graph update. I was rather surprised at April’s resurgence so I have to wonder if May will level off or actually show and increase as well. Can we use the lessening rate of increase as an issue citing the negative PDO as the cause???

By: Gary Gulrud

Gary Gulrud — Wed, 07 May 2008 20:16:54 +0000

dscott:

Kauffman paper:

http://nzclimatescience.net/images/PDFs/ccr.pdf

By: Gary Gulrud

Gary Gulrud — Wed, 07 May 2008 18:45:51 +0000

dscott:

The Beck paper at Icecap and Kaufmann paper at NZClimateScience, taken together, indicate that drying the sampled air with H2S04 under-reports the CO2 by 20ppm.
The CDIAC data are plainly smoothed and the data sheet for the Siemens black box measuring the CO2 using IR spectrometry, the calibration methods used, etc., are seemingly unavailable.
Therefore, my suspicions are not ‘proven’, but there is scope for them to be held.

By: dscott

dscott — Tue, 06 May 2008 12:53:43 +0000

Here’s a USGS page showing the monitoring of the Mauna Loa volcano: http://volcano.wr.usgs.gov/maunaloastatus.php Here’s a little history of the monitoring: http://hvo.wr.usgs.gov/maunaloa/current/monitoringdata.html

By: dscott

dscott — Tue, 06 May 2008 12:47:42 +0000

Gary,

How much have the “calibrated” the CO2 reading before? Surely not on the order of 1 or 2 ppm? What would be the reasoning used to perform such an adjustment of the data? There is no UHI effect on Mauna Loa or do they have to account for the volcano offgasing CO2? Or the prevailing winds bringing CO2 from the errupting volcano Kilauea, after all they are on the same island?

By: Gary Gulrud

Gary Gulrud — Mon, 05 May 2008 20:53:39 +0000

As they say:

“The last year of data are still preliminary, pending recalibrations of reference gases and other quality control checks.”

IMHO, CO2 data are more suspect than GISSTemp, just better established and less readily disputed. Hansen caught his mojo from Keeling.

By: dscott

dscott — Mon, 05 May 2008 12:14:43 +0000

This is very odd, they have the Mauna Loa chart updated http://www.esrl.noaa.gov/gmd/ccgg/trends/ but not the supporting data. ftp://ftp.cmdl.noaa.gov/ccg/co2/trends/co2_mm_mlo.txt

Eyeballing the chart it looks like April 2008 is higher than April 2007, same for the global marine chart and data.

By: Mike Bryant

Mike Bryant — Sat, 03 May 2008 13:46:15 +0000

Mauna Loa CO2 Up… Still Below Trend

By: Roger Carr

Roger Carr — Sat, 03 May 2008 04:46:05 +0000

Basil: Who reads the morning paper any more, when there’s much more interesting stuff on blogs?
Yep!

By: dscott

dscott — Thu, 01 May 2008 20:49:24 +0000

I’ll be watching and will report on this thread.

By: dscott

dscott — Thu, 01 May 2008 19:09:11 +0000

Hey Anthony, the Mauna Loa figures for April should be released any day now. Want to take bets on if April 2008 will be lower than April 2007? If it comes in lower, the blogosphere is going to explode with people screaming at each other over whether temperature or CO2 is the driver and what role La Nina plays in it.

REPLY: Yep, keep a watch for me, hitting the road again tomorrow. I just bought an electric vehicle and I’m driving to S. Cal to pick it up. I’ll explain why somebody like me needs an electric vehicle in a future post.

By: Gary Gulrud

Gary Gulrud — Tue, 15 Apr 2008 22:32:35 +0000

Arch Stanton was the grave next to the ‘Unknown Soldier’, and in which grave the payroll was buried, in the epic “The Good, the Bad and the Ugly”.

I see no analogous treasure here whatever.