Author Archives: Stephen McIntyre

Atlantic Hurricane Track Versions

So far I’ve located three slightly different versions of the Atlantic track data: http://www.aoml.noaa.gov/hrd/hurdat/tracks1851to2005_atl.txt http://www.weather.unisys.com/hurricane/atlantic/tracks.atl http://www.aoml.noaa.gov/hrd/hurdat/easyhurdat_5105.html Here are a few boring comments on these data sets for anyone who’s working on them.

Counting Ragged Arrays in R

One of the common operations in the types of analyses done here is simply counting things. I am constantly amazed by the tremendous productivity of the tapply function in R – I use it over and over – for producing interesting results at warp speed. There’s nothing particularly novel in how I use it, but […]

IPCC and Solar Correlations

Here’s a post which I wrote last June but didn’t post up at the time because the NAS Panel report came out and I had other pressing matters to comment on. My post as then drafted started: Last week, through Chefen, Jean S and myself, here here here and here , we showed that MBH98 […]

Critique of Stern

A few people, most recently Jean S, have pointed out the interesting critique of the Stern Review (I should have posted up this thread earlier). Abstract:The Stern Review: A Dual Critique Part I: The Science Robert M. Carter, C. R. de Freitas, Indur M. Goklany, David Holland & Richard S. Lindzen Part II: Economic Aspects […]

Solar Proxies

There seems to be lots of interest in solar issues and lots of controversy among specialists. For now, let’s simply look at the millennial proxies for solar activity. For now, I don’t want to discuss issues like cosmic ray modulation or that sort of stuff on this thread – all in good time. Put it […]

Statistics of Record-Breaking Temperatures

Luboà…⟠Motl has kindly directed our attention to the following interest paper by S. Redner and M. Petersen, On the Role of Global Warming on the Statistics of Record-Breaking Temperatures, scheduled for publication in Phys Rev Letters E, presently online here with abstract: We theoretically study long-term trends in the statistics of record-breaking daily temperatures and […]

More Unthreaded

Continuation of Unthreaded. Continued by Unthreaded #3

Dasuopu Versions

Al Gore’s hockey stick is from Lonnie Thompson’s ice cores. [Update: subsequent to this, we discovered that Al Gore’s hockey stick is not “DR Thompson’s thermometer” but Mann’s hockey stick wearing a wig.] On previous occasions, we’ve talked about the Guliya ice core -Thompson’s failure to archive data; the use of three different and inconsistent […]

Gulf of Mexico SST Proxy

Here’s an interesting SST proxy from the Gulf of Mexico that I meant to report on last October, but is actually more timely now given our recent discussion of hurricanes. When I corresponded with Lloyd Keigwin around the time of the Juckes submission, he mentioned a “beautiful” unpublished high resolution core from Poore in the […]

Bob K's Hurricane Image

Here is Bob K’s image of Cat 3 plus hurricanes in three 50-year tranches. Are the changes climatological or methodological?