View Single Post
Old 20-11-2009, 07:52 PM   #60
gripit
Senior Member
 
Join Date: Mar 2009
Location: Toronto
Posts: 2,097
Likes: 2 (2 Posts)
Default

more...

Quote:

HOW TEMPERATURE CHARTS AT HADLEY NEED TO BE DISCUSSED TO MAKE SURE THEY AGREE WITH THE CURRENT WARM PERIOD BEING WARMER THAN THE MEDIEVAL WARM PERIOD – FROM DEEP COOL

At 14:10 15/01/2007, Michael E. Mann wrote:

Phil,
The attached piece is very good, impressive in the detail you’ve been able to dig up on this. Won’t pass this along. [No idea what the mysterious "this" is - Richard]
A couple minor comments:
1. I understand the point of the 50 year smoothing, but I think it would still be very useful to show were the most recent decade is on this scale. a lot of the recent warming is washed out by the padding at the end. People will look at this and say “see medieval peak was warmer than present”. but that doesn’t follow because so much of the warmning has been over past two decades.
2. I would not reference Wegman report as if it is a publication, i.e. a legitimate piece of scientific literature. Its a piece of something else! It should be cited in such a way as to indicate it is not a formal publication, wasn’t peer-reviewed, i.e. could be references as a “criticism commissoned by Joe Barton (R, Exxon). [ad hominen - tut tut Mr Mann]
3. I think that Stefan/Gavin were hoping to do something on RC sooner than the timeline you mention. What do you think about this? Do you want to forward the message to them and tell them the timeline you have in mind?
talk to you later,
mike
p.s. thanks very much for the ‘nomination’ , but you flatter me. I think that someone
farther along in their career such as Keith is more deserving at this time.

Phil Jones wrote:

Mike,
Thanks.
On 1) Putting the last few years in zooms the CET curve much higher. Tim took out the last few years. I need to make this clearer in the caption. Padding is an issue with a 50-year smoother.
2) I agree Wegman isn’t a formal publication. This was the highest profile example I could come up to show abuse of the curve. if you know of any others then let me know.
Even Tom Crowley shouldn’t have used it. There is a belief in the UK, that a curve of UK/CET past temperatures (by summer and winter) exists. It doesn’t, but the winter curve from Lamb is probably a lot better than the summer one.

I’ll let you know on time-frame when I hear from a few more I’ve sent the piece to.
Cheers
Phil
http://wattsupwiththat.com/2009/11/1...ed/#more-12937
gripit is offline   Reply With Quote