Why does the RSS Sat Data NOT agree with GISS? Specifically for the 2000-2008 time period as indicated on this chart of the Satellite TLT and TMT data-- about 1/2 way down the web page??? Now if you look at the temp chart for 2000-2008 it sure appears to me to be DROPPING! Why?
http://www.remss.com/msu/msu_data_descri...

Additional Details

2 months ago

and just so you know -- here is a quote from Dr. Santer of Lawrence Livermore labs---“Several prominent politicians have used the lack of warming in the UAH TLT data to argue that the Earth is not warming, and that all climate models are fundamentally flawed. Our work suggests that such criticisms are misguided and ill-informed.” However -- the good Dr. does NOT answer my question concerning the chart which is obviousy going DOWN in temperature. ??

2 months ago

make that obviously

2 months ago

http://esi-topics.com/nhp/2007/january-0...

2 months ago

No the data is actual : the letters stand for:
TLT


=


Temperature Lower Troposphere

Temperature Middle Troposphere

Temperature Troposphere / Stratosphere

Temperature Lower Stratosphere

2 months ago

ALL four charts show cooling-- are you saying an El Nino affected all atmosphere layers-- to the stratosphere?

2 months ago

Again all of the charts show a decline -- from 2000-2007

2 months ago

This essentially shows my continued problem with ground based data-- I will only trust the SAT data when we get more trend years-

2 months ago

So then everyone agrees temps have fallen since 1999- 2000 ??

2 months ago

and just because multiple charts seem to agree it really doesn%26#039;t mean anything.
http://wmbriggs.com/blog/2008/04/08/why-...

2 months ago

and here are all the El Nino and LA Nina%26#039;s for about 50 years: http://www.cpc.ncep.noaa.gov/products/an... notice that the La Nina of 2007 did not begin until JULY-- so why are temps stable or declining since 2000? The %26quot;computer models%26quot; say otherwise?

2 months ago

and all those errors have since been corrected in the SAT data-- which is MORE than I can say about the ground data.

2 months ago

Bob-- unless my eyes are getting really bad all 4 charts would show a downward trend line if drawn between 1999-2007-- just look at them it%26#039;s obvious---

2 months ago

Yes -- even with Dr. Hoffman the guy that designed most of the soil analysis equipment on the Phoenix Mars probe-- us Astro-Nuts believe it%26#039;s the sun-- driving the climate-- along with water vapor, and clouds.

2 months ago

Oh-- Ken -- the good Dr. saw this data starting in 2001-- ok he was talking in 2005 -- so he saw this data then for 5 years. Ken and Bob still not convinced -- show me more SAT data-- BUT if that %26quot;trend%26quot; continues next year in the SAT data you will need to say, %26quot; Boatman we have seen the light!%26quot; Ha.! :) thanks for your Answers--

%26quot;Journalists dealing with temperature data should keep in mind that there are a number of different global mean temperature series available, and that advocates often tend to pick the one that will best reinforce their perspectives. Over longer time periods, however, the differences between different temperature series%26#039; settle out, and all show comparable warming temperature trends.%26quot;

%26quot;As shown in the figure below, all four temperature series align remarkably well when normalized on the same baseline period. GISS and HadCRU both show a warming trend of 0.16 degrees C per decade from 1979 to February 2008. RSS shows a warming trend of 0.18 per decade over the same period, while UAH shows a warming trend of 0.14.%26quot;

0.16, 0.18, 0.14 degrees warming per decade. Three different datasets giving the same answer. Think that%26#039;s a coincidence?

EDIT - The data does not show cooling. The results are perfectly consistent with long term warming (the plotted trend lines). Your eye is not scientific analysis.

I remain baffled why you do not talk to real scientists about this. Surely your astronomy pastime brings you into contact with them? Report Abuse

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Other Answers (7)

• MSU data does not include temperatures from the poles, which is where much of the recent temperature anomaly has been.
  
  A quote from your link: %26quot;Data poleward of 82.5° North and 70° South, ... [is] not available.%26quot; The curve of Earth and the angle from which satellites orbit does not allow good readings from the poles.
  
  The trend (remember to keep short-term weather and long term climate distinct) of the lower troposphere show a 0.173 K/decade rise. That%26#039;s very close to the decadal surface temperature datasets.
  
  Here%26#039;s the most recent GISS monthly chart:
  http://data.giss.nasa.gov/gistemp/graphs...
  
  It shows a very similar dip on the right, that corresponds to the cold (la nina) Winter we just experienced.
  
  Another detail that must be acknowledge is that the GISS data includes latitudes beyond which the RSS data includes. These 2 charts show that there%26#039;s much more warming at the Arctic than the equator, so that would cause the RSS data to be cooler.
  http://data.giss.nasa.gov/cgi-bin/gistem...
  http://data.giss.nasa.gov/gistemp/graphs...
  
  And your other link to the interview by Santer says:
  %26quot;there are significant uncertainties in estimates of %26quot;observed%26quot; tropospheric temperature changes obtained from satellites and weather balloons.%26quot;
  
  So one should not assume any measurement from a satellite is inherently more accurate. A major satellite measurement error became evident a few years back when the work and Christy and Spencer was found to be in error.
  http://www.sciencemag.org/cgi/content/ab...