Some early contact with bias and mythology in the Australian Bureau of Meteorology BoM near two decades ago

I first got to know the BoM in 1991 when GW was in its infancy and was surprised at the extent to which PC myths coloured peoples thinking.

I noted very early on that many long term small town sites were as warm in the 1880’s as they were in the 1980’s and when I [...]

NASA struggling to play catchup with stunning facts of a very quiet sun, which is of course bad news for the IPCC

NASA’s Spaceweather.com has a small article on March 22 200 [thanks to Bob Foster for the heads-up]

DEEP SOLAR MINIMUM: Where have all the sunspots gone? As of yesterday, March 21st, the sun has been blank on 85% of the days of 2009. If this rate of spotlessness continues through the end of the [...]

Examining in closer detail Jones et al 2008 eastern China land/SST grid box where they conclude urban warming at ~0.1 degrees per decade

Remember from the previous post, that Jones et al 2008 in their section 3.3. Comparisons with SST Data, say. “As it is difficult to develop a network of specifically rural sites in China, we now compare the CHINA-LI and CRUTEM3v series with one based on HadSST2 [Rayner et al., 2006] for the region (20–45 deg [...]

History made as Jones et al 2008 paper admits huge urban warming in IPCC flagship CRUT3 gridded data over China

So sceptics have been correct for decades.

Yes you have to pinch yourself, the old canard so long clung to by the IPCC, that the urban influence in large area gridded data is “an order of magnitude less than the warming seen on a century timescale” is now severely compromised.

The IPCC drew that conclusion [...]

Chinese climate scientists tactfully tell the IPCC that surface air temperature (SAT) trends over north China include a large component of urban warming

Ren et al 2008 measure urban warming in a north China grid box 33 to 43 degrees North and 108 to 120 degrees East by comparing temperature trends in groups of stations of different population size for the period 1961-2000. For a concise summary of the Ren et al 2008 paper, Urbanization Effects on Observed [...]

Huge Urban Heat Island UHI contamination in Hadley Centre-Jones-IPCC CRUT3 land temperature data over Eastern China

Now that the NASA-UAH satellite temperature data extends over a clear 30 years 1979-2008, this is a timely opportunity to check again the old IPCC canard that the various global temperature datasets are in agreement. In this case I compare the Hadley Centre CRUT3 land only data 1979-2008 with the NASA MSU LT data from [...]

South East Australian heatwave in January 2009 is not detectable in “global warming” data

Increasingly, we are hearing in the media that the January-February south east Australian heatwave and disastrous bushfires in Victoria that have killed over 200 people are the result of climate change or global warming.

This map shows the 10 degree grid cell that the temperature data graphs below is collected from.

Here [...]

More complete sequence of BoM weather radar images Melbourne bushfires 7th Feb 2009

Images of bushfire smoke plumes from the 128km Melbourne Airport BoM weather radar for the 7th February 2009. Vastly improved timeline of the afternoon compared to that from the “black” National Synoptic Radar Mosiac which had many gaps for Melbourne. These weather radar images can be downloaded at this website.