Monthly Archives: September 2007

Crossword Puzzle #3

Sep 6, 2007 – 7:03 PM

Let’s move from the 2 column case to the 3 column case (e.g. Bagdarin, already considered) applying the results here. Some of the hypotheses from the earlier discussion have to be re-visited. Bagdarin has 3 dset=0 versions (0,1,2). As we’ve seen in the 2-column case, the column that continues to the present (version 2) exactly […]

By Stephen McIntyre | Posted in General, Hansen, Surface Record | Comments (32)

Hurricanes 2007

Sep 6, 2007 – 6:06 AM

New Thread.

By Stephen McIntyre | Posted in Hurricane | Comments (421)

Crossword Puzzle – Tuesday

Sep 4, 2007 – 9:55 PM

The question today is: how does Hansen calculate quarterly and annual averages when there are missing values? It’s not obvious. The issue arose in the previous puzzle in trying to calculate Hansen’s adjustment prior to combining scribal versions. Essentially what happens as reported in the prior post is that when there is a missing value, […]

By Stephen McIntyre | Posted in Hansen, Surface Record | Comments (126)

Your Sunday Crossword Puzzle

Sep 2, 2007 – 7:28 AM

For your Sunday edification, today’s crossword puzzle pulls together 3 examples of Hansen data “combining”. The question is to find an AlGore-ithm that accounts for all three versions. The three data sets each have 3 columns: the first two are data versions; the third column is Hansen-combined. In each case, there is an overlap between […]

By Stephen McIntyre | Posted in Hansen, Surface Record | Comments (210)

Slicing some Czech Salami

Sep 1, 2007 – 7:47 PM

I’ve got an idea of how Hansen sliced the salami in Praha-Libus, an enterprise no doubt dear to Lubo” heart or, at least, stomach. There are only 2 series in play. Version 61111520000-0 goes from 1971 to 1991 and version 61111520000 – 1 goes from 1986 to 2007. For all values where there is only […]

By Stephen McIntyre | Posted in Hansen, Surface Record | Comments (43)

Hansen's "Bias Method"

Sep 1, 2007 – 8:32 AM

John Goetz sent me some scanned excerpts from Hansen and Lebedeff 1987 which (only somewhat) clarify what Hansen’s doing – although the descriptions below do not clarify the Kalakan problem of how the combined station record becomes colder than any of the measurements in the period. There are somewhat different issues in combining records which […]

By Stephen McIntyre | Posted in Hansen, Surface Record | Comments (71)