The GISS homepage formerly said: The NASA GISS Surface Temperature Analysis (GISTEMP) provides a measure of the changing global surface temperature with monthly resolution for the period since 1880, when a reasonably global distribution of meteorological stations was established. Input data for the analysis, collected by many national meteorological services around the world, is the […]
The US CRN (Climate Reference Network) appears to be a generally well-designed network for measuring 21st century temperatures. Its mission statement includes an undertaking to make its results available online. Here as with GISS and the metadata, system designers have provided webpages – in a format that may be interesting for very casual users, but […]
Don Healy sends this photo of Port Angeles, Washington’s USHCN station #456624: Increasingly, non standard equipment is being observed as substitutes for max/min thermometers and MMTS systems. In this case, vandalism issues with the MMTS forced a change to this station setup in 2002 that was less accessible. In 2002 a change shows up on […]
I observed recently that Hansen’s GISS series contains an apparent error in which Hansen switched the source of GISS raw from USHCN adjusted to USHCN raw for all values January 2000 and later. For Detroit Lakes MN, this introduced an error of 0.8 deg C. I’ve collated GISS raw minus USHCN adjusted for all USHCN […]
Well, I found it. Eureka that is, but what I found was rather depressing. I visited the USHCN climate stations of record both old and new at Eureka, California on July 30th and I can’t decide which site is more out of compliance with sitings standards. The original location was on the 4th story roof […]
WMO guidelines state that weather stations should be at least 100 feet from paved areas. As we see the USHCN pictures unfold, we’re obviously seeing one site after another in non-compliance with this requirement, a point notably made in connection with Tucson (Univesity of Arizona) site, where the location was particularly gross, but the point […]
This is the climatological station of record for Odessa, Washington. It is at the residence of a COOP weather observer administered by NOAA. The photo was taken by surfacestations.org volunteer surveyor Bob Meyer. In addition to the proximity to the house and the asphalt being less than the 100 foot published NOAA standard, we have […]
Peterson 2003 stated: Contrary to generally accepted wisdom, no statistically significant impact of urbanization could be found in annual temperatures. Last week, Peterson sent me a list of the 289 sites used in this study, together with the classification into urban and rural. As I noted previously, there are many puzzles in the allocation of […]
I posted up the list of 289 sites from Peterson 2003 purporting to show that the difference between “urban” and rural sites was negligible. (See related posts here and here.) As noted before, the definition of “urban” includes such metropolises as Wahpeton ND and Hankinson ND. Cottage Grove 1S OR is classified as “urban”, while […]
Eli Rabett and Tamino have both advocated faith-based climate science in respect to USHCN and GISS adjustments. They say that the climate “professionals” know what they’re doing; yes, there are problems with siting and many sites do not meet even minimal compliance standards, but Hansen’s software is able to “fix” the defects in the surface […]
Climate Audit 