We’ve got Sat Data!
Posted by Jeff Id on March 12, 2009
It’s been a little quieter on the Air Vent lately. That’s not because I’m not working on anything it’s actually because I’m working more. Jeff C found an FTP server on the NSIDC site where we can download the satellite data. I spent the last two nights collecting the ‘huge’ datasets and other Jeff has worked out how to convert them into the 50×50 gridded Format.
It’s not the actual data as used with the revised cloud masking, but it is satellite TIR data from the same source. It also only starts at 1982 instead of July 1981 and it only extends to 2004, but it will work fine for analyzing the reconstruction and redoing their satellite reconstruction witha correct number of PC’s. I’ve already bet my $3.00 on what we’ll find but I really don’t know.
Here’s a plot Jeff C did from a one month dataset from Jan 1982.
UPDATE: The Temp values in the legend are correct now.
Just think of all the fun we’re going to have over the next few days.
BDAABAT said
Way to go Jeffs!!! Very much look forward to your findings.
Bruce
Jeff C. said
I should know better than to send plots I create at one in the morning. The temp scale legend is off by 5 deg, it should run from >10 deg C to -45 deg C. I’ll forward a replacement plot.
Jeff Id said
#2 – Thumb on the scale eh?
No big deal, we’ve got lots of time to fix the details.
Tim L said
wow, way to go…. everyone will be sitting on edge of seat!
now the pc’s will show space etc.
Tim L said
opps sounds sarcastic
oh well
Chris H said
A very pretty picture, even if it does show artificial cooling of 5 degrees 🙂 . Please don’t post things too fast, I have trouble keeping up!!
Not sure said
Man that’s cold! Keep in mind January is the dead of summer in the southern hemisphere.
Hal said
OT Gavin Schmidt is a climate harlot (not to say wh.re) who will sleep with any AGW pushing idiot.
I got Gavin to respond to this comment about an Elizabeth Kolbert interview. (I use my daughter’s ID since Gavin cuts women a lot more slack in his moderating)
He concurs with her by saying:
“..the basic science is very simple and something that the public doesn’t grasp well”
It really shows that he is being paid to do a PR mission for AGW alarmism.
If he reads this he will probably never again allow a posting by Anne.
Hal
Comment #145 on RC : Advice for a young climate blogger.
——————————————————————————
So how should a blogger handle statements by the press, which are stupid.
I just ran across a Yale Environment 360 interview with Elizabeth Kolbert, a climate change reporter with the New Yorker, where she says:
http://www.e360.yale.edu/content/feature.msp?id=2130
“I mean, Freeman Dyson has done a tremendous amount of damage saying, “I don’t believe models. We can’t model this.” Well, we actually can model
it very accurately, it turns out. And we’re talking about very fundamental science. It’s not a very complicated science.”
Should we ignore such imbecilic statements of how simple the science is? Is that the message we want to give the public? Someone should tell this woman to look at the scientific blogs out there, so that she realizes how complex it is to model the climate.
[edit]
Anne
[Response: Kolbert has done a tremendous job bringing this to the public and understands the issues extremely well. Her “Field Notes from a Catastrophe” is probably the best pop. sci. intro to the issue out there. Her statement is not ‘imbecilic’ – the basic science is very simple and something that the public doesn’t grasp well. And yes, she understands how hard it is to model the details – read chapter 5 of her book. You have picked the absolutely worst target here. – gavin]
Comment by Anne — 12 March 2009 @ 7:10 PM
TCO said
Have you looked at chapter 5? How much are you calling Gavin a harlot just because he disagrees with you?
Hal said
WELL tco, she must have not written it herself, based on those airhead statements in the interview, like “..with the economy going thru the roof” AND CALLING CLIMATE SCIENCE SIMPLE, yeah for simpletons it may seem that way.
TCO said
Have you looked at chapter 5?
Are you findind isolated sentences and making a big deal of them? That’s sloppy whether done from left or right. Was the economy growing when she said what she did?
Tim L said
HAL, nice one.
and look what the cat dragged in —TCO—
Hal said
Yeah TCO, the interview was 11 Mar 2009.
The economy was growing then about as well as the climate was warming.
Hal said
Gavin’s response relates to this interesting quote from Andy Revkin in his piece about the Copenhagen conference.
Daniel Sarewitz at Arizona State University said this was a classic example of how scientists and the media play down complexity in their thirst for powerful framing that catches attention and might drive action. The problem, he and several colleagues said, is that over-reaching can also lead to distrust and further polarization of advocates threatened or empowered by the controversial finding. (This is the “climate porn” concept I wrote about a while back.)
Link: http://dotearth.blogs.nytimes.com/2009/03/12/copenhagen-summit-seeks-climate-action/?hp
TCO said
Hal, thanks for the comment on the date. How about chapter 5? (third time I ask).
Nicolas Nierenberg said
Which data set exactly did you use for this analysis? Did you use that java interface to retrieve it? Did you use the twice daily temps?
Jeff Id said
Here’s the link. You can download from the FTP site at the top of the page.
http://stratus.ssec.wisc.edu/products/appx/appx.html
Layman Lurker said
#16 Nicolas Nierenberg
Off topic. In light of your recent work and Gavin’s comments about RSS trend vs. UAH trend you might be interested in reviewing Jeff’s posts starting Jan 6th: https://noconsensus.wordpress.com/2009/01/06/more-fun-with-giss-temps/
There are a series of I think 6 posts altogether which include insights from Dr. Christy. The posts evolve into a comparison of UAH and RSS and correcting for a 1992 discontinuity which tends to pull the trends of the two metrics together using GISS during the peroiod of discontinuity: https://noconsensus.wordpress.com/2009/01/19/satellite-temp-homoginization-using-giss/
Jeff Id said
#18 I found a cool wavelet decomposition function which should improve the analysis. It should make another entertaining post at least from my perspective because it will do a much better job with frequency isolation.