Comments thread – AIRS Team satellite CO2 paper published

29 09 2008
AIRS has higher resolution tracking of global CO2

AIRS has higher resolution tracking of global CO2 - click for image

I’m going to make a formal post on this later, but I wanted to bring it up for discussion now since many people have been waiting for this paper to be published. For my previous perspectives and replies from authors, see this post here:

An encouraging response on satellite CO2 measurement from the AIRS Team

Hat tip to F Rasmin who writes with a link to the new paper:

Hello Anthony. Is this the awaited paper from the AIRS TEAM? ‘Satellite remote sounding of mid-tropospheric CO2′, published 9 September 2008 at:

http://www.agu.org/journals/gl/gl0817/2008GL035022/

REPLY: Yes it is. This was on my list of things to check this week, thanks for the tip! I’ll write it up sas soon as I can read it. In the meantime, feel free to post more comments on it in this thread.


Comments : 48 Comments »

Categories : Science, climate_change

Small sunspecks emerging on both solar hemispheres

29 09 2008

In comments, Jonn-X wondered:

Dead pixels or new sunspecks (pore-ettes) ?

At first I was pretty sure I was looking at nothing, then I saw the official NOAA bulletin

http://www.swpc.noaa.gov/forecast.html

and the usual phrase, “The visible disk was spotless,” was omitted – typical practice when there’s something there, but too small to be “officially noticed.”

Anybody else see anything?

I do. I know where the dead pixels are, and have labeled them below in the SOHO MDI image. Note that there are two very small sunspecks, possibly soon to be sunspots, emerging on both sides of the equator.


Click for a full sized image

For those that don’t know. The SOHO spacecraft sensor does have some stuck pixels, and these can sometimes be cured in a “bake off” where they heat up the sensor for a few hours.

Our resident official solar physicist, Dr. Leif Svalgarrd will confirm or refute my suspicions on the categorizations of SC23 and SC24 I’m sure. For comparisons, you can also see the SOHO magnetogram.

I’ve included it also below:

UPDATE: The specks are fading, so far no observation agency has assigned a region or counted them that I know of, see the updated SOHO MDI. Read the rest of this entry »


Comments : 112 Comments »

Categories : Science, solar