To: Land Shark who wrote (34797 ) 7/13/2011 9:33:29 AM From: Brumar89 Read Replies (3) | Respond to of 36917 It does matter if they've changed historical temperature records. NASA GISS is doing Soviet style "science" where history is changed to fit the movements needs. joannenova.com.au Note this commentor on the joannenova thread testifying that if you download NASA data at different times, you get different data. They "adjust" as needed: Marty Richards: March 18th, 2010 at 6:42 pm Hi Michael Not Mann, 1934 was the warmest US year when I downloaded the data from NASA in about November last year – iirc it was 0.03C warmer than 1998 and 2006. But then I downloaded the data in December and it had changed so that 98 & 06 were 0.01C warmer than 1934 again. In January I downloaded the data once again – and it had completely changed. Maybe I got the wrong data because the 20 hottest years were now in the last 25 years, and 1934 was 0.7C cooler than 98 & 06. Even the format of the data had changed – 5 columns instead of 2, and several different averaging arrangements(thus I suspect I downloaded a different data set). I spent some time trying to get the old data but I believe its all been removed. There was some chatter about this on climateaudit.org at the time – something about re-applying TOBS adjustments from NOAA/GHCN (ie, not NASA’s fault apparently). I gave up downloading data after that. I figured if the data was going to keep changing that much we couldn’t argue with it sensibly – because any argument we made would be invalidated by future changes anyway. Obviously I must have gone wrong somewhere so I’m looking forward to being directed to the current NASA dataset for the US showing ’34 as the hottest still… .... This comment from Frank Lansner at GISS describes where the graphs come from: Frank Lansner: March 20th, 2010 at 5:04 am Hi Tom! Yes, the refs by Joanne are correct, here a little more:giss.nasa.gov The Hansen graph that ends late 1970´ies is from “Hansen et al. 1981? “The first reliable global measurements of temperature from NASA, published by Hansen and his colleagues in 1981, showed a modest warming from 1880 to 1980, with only a slight dip in temperatures from 1940 to 1970. (Graph adapted from Hansen et al. 1981.)” Hansen 1987 i took from Singers superbe writing:sepp.org the exact graph GISS is from “Hansen and Lebedeff”, 1987 is “(1)Hansen, J. and S. Lebedeff (1987), Global Trends of Measured Surface Air Temperature, Jour. Geophys. Res., Vol.92, No.D11, pp13,345-13,372? Here are GISS graphs compared from 1987 and foreward by Steve McIntyre:climateaudit.files.wordpress.com As one can see, the 1930-1940-peak as a whole is reduced and reduced and reduced. – I will just update my article with this And since the Soon = HL87, then the global warming swindle graph is in fact HL 87 it seems – as McIntyre describes here:climateaudit.org K.R. Frank Lansner And thankyou everyone here at joanne´s beatiful blog, keep up the good work! Another post from Lansner: Frank Lansner: March 20th, 2010 at 6:52 pm Now from Appinsys, at nice illustration of Hansen 1981 vs. 2007:hidethedecline.eu Liked it? 2 0 90Frank Lansner: March 20th, 2010 at 6:58 pm The picture above: – not only did Hansen alter the trend 1940-75, he also made a HUGE adjustment around 1975-80, much more warming trend after 1975!!!