Comments on: Crossword Puzzle #3

By: Nasif Nahle

Nasif Nahle — Sat, 08 Sep 2007 05:37:35 +0000

Thank you, Steve! And you’re right, Linares is not working now! I’ve sent E-mails to some colleagues working there to know the cause. As soon as I have the answer, I’ll make you know it. I’m really ashamed by this inconvenience.

By: Steve McIntyre

Steve McIntyre — Sat, 08 Sep 2007 02:07:49 +0000

#30: http://data.giss.nasa.gov/gistemp/ follow the choices.

By: Nasif Nahle

Nasif Nahle — Sat, 08 Sep 2007 00:39:39 +0000

# 9

Steve McIntyre,

No, I’ve not a plausible explanation. Perhaps it was the obsoleteness of their equipment. The case went to the public dominion, but I didn’t follow the results and if they restructured their methods. I didnt know that GISS/GHCN on Linares had stopped in 1983; could you give me the link? Perhaps I’ll find something about.

By: steven mosher

steven mosher — Fri, 07 Sep 2007 21:38:57 +0000

RE 19.

John V. Have a read thrugh Hansen87, hansen99 and 2001, The latter two are on
GISS the former is linked in the Hansen BIAS thread.

Nothing made sense to me until I read H87.

By: Sam Urbinto

Sam Urbinto — Fri, 07 Sep 2007 19:07:06 +0000

Come on Jimmy, free the code!

By: steven mosher

steven mosher — Fri, 07 Sep 2007 18:24:47 +0000

Daily data… Tmax and Tmin is critical if you want to do UHI and/or Microsite
Studies.

By: Al

Al — Fri, 07 Sep 2007 18:08:42 +0000

This entire area is sufficiently screwed up that a simple reproduction of the historical papers would be worthy of publication.

By: John V.

John V. — Fri, 07 Sep 2007 15:49:35 +0000

#22:
I agree that daily data should be used for most work (assuming daily data is available).
I can think of a few reasons for generating monthly data though:

- comparison against GISS dset=0 (for validation)
- monthly and seasonal temperature trends
- plotting and visualization

By: KDT

KDT — Fri, 07 Sep 2007 15:42:43 +0000

If my bias figures are confirmed, I am flabbergasted. I already knew this record was flawed, but to see the process in action is amazing. When record 2 is added to the mix, Hansen tries to detect a .13 bias that exists between these records. But he comes up with -.24, a difference of -.38 degrees.

His error is triple the bias he is looking for.

And here’s the kicker. That .14 bias was introduced by Hansen’s same error in the first combination! If he hadn’t screwed that one up, there would be no bias to detect.

(ftc)

By: John V.

John V. — Fri, 07 Sep 2007 14:50:30 +0000

#20:

you dont have daily data on most stations.

If that’s the case, then monthly data it is.

Steve, I realize that you are aware of the steps and that you are working on other things right now. I am offering to help where I think I am most able (writing new analysis code).