Monthly Archives: October 2007

Juckes and "Restricted" Data

Oct 7, 2007 – 8:47 AM

Many climateaudit readers will remember Mann’s “CENSORED” directory, in which Mann calculated principal components on a network that excluded bristlecone pines (which needless to say didn’t have a HS shape. Now Juckes et al introduces us to a new type of climate data: “restricted” data. The Team has introduced a novel data classification system – […]

By Stephen McIntyre | Posted in Juckes et al 2006, Moberg [2005] | Tagged , | Comments (243)

Gridding from CRN1-2

Oct 4, 2007 – 1:26 PM

In order to assess the 2006 anomaly in John V’s 2006 calculation reported previously, I’ve calculated a gridded anomaly for the U.S. using standard spatial smoothing software in R. This enables the calculation to be done in a few lines as explained below. I’ll also show results which reconcile most of the results to date. […]

By Stephen McIntyre | Posted in Scripts, Surface Record | Tagged , , , , | Comments (108)

2006 and CRN1-2

Oct 3, 2007 – 11:13 PM

John V has posted some graphics recently arguing that CRN1-2 yielded pretty much the same results as major temperature indices and, in some sense, vindicated these results. As Gavin Schmidt has pointed out, the U.S. is only 2% of the world’s surface; and as I’ve observed on many occasions, the statistical methodologies and data quality […]

By Stephen McIntyre | Posted in Hansen, Surface Record | Tagged , , , | Comments (81)

A First Look at the CRU Station List

Oct 3, 2007 – 5:50 PM

On Sept 28, 2006, Willis Eschenbach sent an FOI for CRU station data. A year later, after many letters, we still do not have the CRU data as used, but do have a list of stations used, a list which is slightly shorter (4138) than the 4349 stations said to have been used in Brohan […]

By Stephen McIntyre | Posted in CRU | Tagged | Comments (35)

CRU Reveals Station Identities

Oct 1, 2007 – 4:47 PM

Willis Eschenbach received a message today that the CRU list of stations used is online at http://www.cru.uea.ac.uk/cru/data/landstations/ . The webpage says: The file gives the locations and names of the 4138 stations used at some time (i.e. in the gridding that is used to produce CRUTEM3) during the period from 1851 to 2006. All these […]

By Stephen McIntyre | Posted in CRU, FOIA, Surface Record | Tagged , , | Comments (137)