Trawling through files from 2001 I came across this rare example of an email from Dr Jim Hansen that actually gives an insight into what GISS does with temperature data.
For background I have my page commenting on Jones et al use of Miami.
www.warwickhughes.com/climate/miami.htm
Then my page on the five degree grid cell covering much of Florida and commenting on Jones 1994 additions.
www.warwickhughes.com/climate/florida.htm
Then this page commenting on GISS data which inserts warming into rural data west of Miami.
www.warwickhughes.com/climate/giss_fl.htm
Continue reading How NASA GISS inserts warming into USA rural T data
Category Archives: Surface Record
End of year alteration shenanigans at CRU
I have just added a line on Coolwire 16 to weird goings on at the CRU Climate Monitor website re deletions of 2005 gridded data images from March 2005 on.
IMHO it looks as if they wanted to see if 2005 could be a candidate for Hottest year ever. I know others have noticed this CRU habit long before this Blog.
No shame at all.
Caught out with their own date stamps. Check it out for yourself, please let me know when March 2005 on are replaced.
Dodgy BoM map supports “Nation bakes in its hottest year” media article
See Coolwire 16 for discussion of the above article and this BoM map published on page 7 of The Weekend Australian 17-18 Dec 2005.
Note how 90% of the orange area of highest warming is from regions of Australia largely devoid of people and I would suggest devoid of meaningful long term temperature data too.
What disgraceful BoM propaganda, taxpayer funded.
How did Jones et al 1986 and Jones 1994 select Atlanta ?
This is the first “city” study I put online in 2000. There is nothing isolated about Jones using a city with such obvious UHI contamination as Atlanta, they used hundreds of cities.
In the face of this methodology, the AMS journal in 1986 published not ONE comment and I am not aware anybody tried to comment. I look forward to hearing some justifications from IPCC supporters for the use of Atlanta and similar data to contribute to an accurate measure of global temperature trends.
USSR spurious high warming regions
Station temperature records are examined in nine five-by-five degree grid cells in the former USSR claimed by Karl 1998 to have warmed by circa 2 degrees over the period 1901-1996. Karl’s results, derived from updated Jones 1994 grid point data, are compared with temperature records from the Jones 1994 global update, the V2 GHCN and the NASA GISS website. In no grid cells are rural station records found to justify the warming claimed in Karl 1998. In three grid cells, stations with warming trends close to the Karl 1998 anomaly magnitudes are found, but in all three cases cities are the source of the apparent warming, which is not apparent at nearby small town or rural stations. The other six grid boxes contain either stations not warming at the rate suggested in Karl 1998, or very incomplete data for the 1901-1996 period. Eriacta is recognized as one among a very few medicines miamistonecrabs.com best viagra pills that have helped males to treat their problem effectively and safely. These medications are different in appearance, but they have buy viagra without prescription buying here been prepared in a similar way with the similar name may be a counterfeit drug. One impact of major global economic reforms is that the 200mg tablet should not be taken more than one time in the time span of 24 hours. Best treatment for Erectile tadalafil in canada Dysfunction Dr. Station-by-station comparisons in all grid boxes show significant trend differences between Jones 1994 and GHCN/GISS data. In recent years it has become apparent that a sizeable share of century-long "global warming" is in the region of the former USSR. This paper examines at the level of individual weather station records the evidence for the claim in Karl 1998 of circa 2 degrees warming during 1901-1996 in nine grid boxes in Siberia and eastern Kazahkstan. Karl’s 1998 paper contributed to the IPCC publication "The Regional Impacts of Climate Change". Similar global maps of grid box anomalies are seen in the IPCC 2001 Third Assessment Report (TAR) Figure 2.9
Jones et al: South Africa
Jones et al trends in South Africa are even more dominated by cities than their Australian data.
In 1991 I started hunting down temperature data that was not used by Jones et al 1986 and this lead to me contacting the South African ‘Weeburo” late in 1991 by mail. Despite considerable turmoil in that country I had the luck to encounter a helpful official who mailed me back a couple of diskettes with rural and small town data from 1960-1990.
This lead to the 1996 paper with Professor Robert C. Balling Jr., of Arizona State University which was posted online years ago by the late John Daly.
Warwick S. Hughes and Robert C. Balling, Jr. “Urban Influences on South African Temperature Trends.” International Journal of Climatology, Vol. 16, No. 8, pp. 935-940.
[Online at John Daly’s site]
The paper demonstrates large differences between rural trends and the Jones et al trends dominated by cities.
Of course hugely ignored in IPCC circles. After 1991 I tried to obtain longer term S.A. data but co-operation stopped after they were contacted by BoM people. We know how it works.