ndelta wrote:I didn't really want to inject myself into this discussion, but I have been trying to read up on climate change research so that I can come up with an informed opinion. I noticed that a paper on surface stations was mentioned in this thread.
Third, even the surface instrumental record is suspect, since only 4% of the USHCN climate network even meets their own guidelines for siting and maintenance.
http://www.surfacestations.org If 96% of the "Cadillac of Climate Networks" is off by 1 degree C or more, I fail to see how you can hope to tease a 0.5 degree change out the data with any kind of certainty.
I came across this video that seems to refute those conclusions.
http://www.youtube.com/watch?v=dcxVwEfq4bM
Can anyone tell me why that video is wrong?
Yes I can. Firstly, he wrongly claims that surfacestations.org judged the surface stations by their own opinions. This is false, they were judged by objective measurement and observation comparison to NOAA's own siting standards. The ratings are thus objectively based on NOAA's own rules.
Secondly the "debunking" published by NOAA in response to Watts' study does not show no difference between 'good' sites and 'poor' sites, what it did show was the degree to which the NOAA processes the raw data, altered to homogenize it all as much as possible. NOAA did not analyse the raw data from the sites, they compared the processed, homogenized data in which good sites temperature numbers are adjusted by other nearby sites.
Another big problem with surface station data outside of this comparison is that 90% of the surface stations in existence in 1990 are no longer there, or NOAA has simply stopped collecting the data from them. These 'dead' stations are predominantly in rural locations.
Furthermore, NOAA does NOT adjust stations for heat island effect. One example of this was the surface station at the Honolulu international airport this past summer, in which the thermometer was broken for a week setting new false high temperature records before publicity given it by Watts blog readers finally got NOAA to order it replaced. Yet NOAA let the faulty temperature records set by the broken thermometer to remain on the books, and they did not adjust the numbers down to account for urban heat island effects.
One thing found by surfacestations.org members is the large number of stations located at airports, and comparing airport stations against other stations shows a marked divergence which can only be explained that the stations warming trends actually record the growth of traffic at the airport and nothing else. Airport surface stations tend to stand near the end of runways, along taxiways and if traffic rises over time, the thermometer is more likely to be exposed to hot jet exhaust gasses for longer periods of time, recording false highs and skewing the record.
In fact, NOAA not only doesnt adjust for UHI, they have taken to depressing temperature records taken decades ago, particularly the 1930's when temperatures were actually warmer than now, while boosting temperatures recorded recently.
Beyond that, half the video isn't even about global warming, but an ad hominem attack on the group funding the publishing because of their past advocacy for tobacco, and trying to imply that Watts is being paid by industry. Fact is Watts is NOT paid by anybody to run his blog. Conversely, pro-AGW scientists receive over $70 million a year to do global warming research. How long do you think those funds would run if those scientists concluded there was no AGW?
"the Energy Foundation, the Pew Charitable Trusts, and the William and Flora Hewlett Foundation -- provided nearly $66.5 million in funding for climate-change research from 2000 to 2002. That's more than half of the $112.1 million in climate-change money that was passed out by the top 20 private foundations during the three-year period."
In the same period, the USG distributed $2 billion to various universities.
Conversely, the only documented funding for skeptical groups is the George C Marshall Institute receiving $95,000 from the Exxon Education Foundation and $60,000 from the American Petroleum Institute. So, who is more paid off?