M
Monte_RCMS
Guest
canadafreepress.com/index.php/article/25940
Global Temperature And Data Distortions Continue
By Dr. Tim Ball Thursday, July 29, 2010
Excerpt: [Also, none of the graphs and maps copied, so please visit the link above; very important]
Evidence of the cold is reflected in the fact that Antarctic ice is continuing to reach record levels. “Antarctic sea ice peaks at third highest in the satellite record”
The same contradictory evidence is happening in the Arctic. They claimed the most dramatic warming was occurring in the Arctic but this contradicts what the ice is doing. Ice continues its normal melt of the summer with a slowing rate slowed in the months of June and July. (Figure 1)
Figure 1: The red line is for 2010.
So where are the stories coming from? It goes back to the manipulation of temperature data by the two main generators the Goddard Institute of Space Studies (GISS) and the Hadley Climate Research Unit (HadCrut). They use data provided by individual countries of the World Meteorological Organization. This is supposedly raw data, but in fact it has already been adjusted for various presumed local anomalies.
But the arctic warming is even more problematic. The Arctic Climate Impact Assessment (ACIA) is the source of data for Intergovernmental Panel on Climate Change yet it tells us there is no data for the entire Arctic Ocean Basin. Figure 2 shows the diagram from their report.
Figure 2: Weather stations for the Arctic.
Source: Arctic Climate Impact Assessment Report
This is why the map showing temperature for the Arctic shows “No data” for the region (Figure 3).
Figure 3: Temperatures for the period 1954 to 2003. They give the source as the CRU.
Source: Arctic Climate Impact Assessment Report
So how do they determine that the Arctic is warming at all, let alone more rapidly than other regions? The answer is, with GISS at least, they use computer models to extrapolate. They do this by assuming that a weather station record is valid for a 1200 km region. Figure 4 shows the 1200 km smoothing results for the Arctic region. (The green circle is 80°N latitude.)
Figure 4: Showing the interpolation of southern weather stations to Arctic.
Source: wattsupwiththat.com
Then we see what happens when the interpolation or smoothing is done using a more reasonable 250 km (Figure 5).
Figure 5: Temperature pattern using a 250 km range for single station data.
Source: wattsupwiththat.com
None of this is surprising because GISS have consistently distorted the record always to amplify warming. The problem of data adjustment is best illustrated by comparing the results of GISS and Hadcrut (Figure 6).
Figure 6: Comparison of Global temperature record.
Source: wattsupwiththat.com
The Hadcrut data shows what Phil Jones, former Director of the Climatic Research Unit (CRU) confirmed to the BBC that global temperatures have not increased since 1998. However, the GISS data shows a slight warming over the period and a significant increase from 2007. How can two records both using the same weather data achieve such different conclusions? The simple answer is they use different stations and adjust them differently, especially for such things as the Urban Heat Island Effect (UHIE).
There is another problem.
The number of stations used to produce a global average was significantly reduced in 1990 and this affected temperature estimates as Ross McKitrick showed (Figure 7). He wrote, “The temperature average in the above graph is unprocessed. Graphs of the ‘Global Temperature’ from places like GISS and CRU reflect attempts to correct for, among other things, the loss of stations within grid cells, so they don’t show the same jump at 1990.” McKitrick got the idea for the problem from an article by meteorologist Joe D’Aleo.
Global Temperature And Data Distortions Continue
By Dr. Tim Ball Thursday, July 29, 2010
Excerpt: [Also, none of the graphs and maps copied, so please visit the link above; very important]
Evidence of the cold is reflected in the fact that Antarctic ice is continuing to reach record levels. “Antarctic sea ice peaks at third highest in the satellite record”
The same contradictory evidence is happening in the Arctic. They claimed the most dramatic warming was occurring in the Arctic but this contradicts what the ice is doing. Ice continues its normal melt of the summer with a slowing rate slowed in the months of June and July. (Figure 1)
Figure 1: The red line is for 2010.
So where are the stories coming from? It goes back to the manipulation of temperature data by the two main generators the Goddard Institute of Space Studies (GISS) and the Hadley Climate Research Unit (HadCrut). They use data provided by individual countries of the World Meteorological Organization. This is supposedly raw data, but in fact it has already been adjusted for various presumed local anomalies.
But the arctic warming is even more problematic. The Arctic Climate Impact Assessment (ACIA) is the source of data for Intergovernmental Panel on Climate Change yet it tells us there is no data for the entire Arctic Ocean Basin. Figure 2 shows the diagram from their report.
Figure 2: Weather stations for the Arctic.
Source: Arctic Climate Impact Assessment Report
This is why the map showing temperature for the Arctic shows “No data” for the region (Figure 3).
Figure 3: Temperatures for the period 1954 to 2003. They give the source as the CRU.
Source: Arctic Climate Impact Assessment Report
So how do they determine that the Arctic is warming at all, let alone more rapidly than other regions? The answer is, with GISS at least, they use computer models to extrapolate. They do this by assuming that a weather station record is valid for a 1200 km region. Figure 4 shows the 1200 km smoothing results for the Arctic region. (The green circle is 80°N latitude.)
Figure 4: Showing the interpolation of southern weather stations to Arctic.
Source: wattsupwiththat.com
Then we see what happens when the interpolation or smoothing is done using a more reasonable 250 km (Figure 5).
Figure 5: Temperature pattern using a 250 km range for single station data.
Source: wattsupwiththat.com
None of this is surprising because GISS have consistently distorted the record always to amplify warming. The problem of data adjustment is best illustrated by comparing the results of GISS and Hadcrut (Figure 6).
Figure 6: Comparison of Global temperature record.
Source: wattsupwiththat.com
The Hadcrut data shows what Phil Jones, former Director of the Climatic Research Unit (CRU) confirmed to the BBC that global temperatures have not increased since 1998. However, the GISS data shows a slight warming over the period and a significant increase from 2007. How can two records both using the same weather data achieve such different conclusions? The simple answer is they use different stations and adjust them differently, especially for such things as the Urban Heat Island Effect (UHIE).
There is another problem.
The number of stations used to produce a global average was significantly reduced in 1990 and this affected temperature estimates as Ross McKitrick showed (Figure 7). He wrote, “The temperature average in the above graph is unprocessed. Graphs of the ‘Global Temperature’ from places like GISS and CRU reflect attempts to correct for, among other things, the loss of stations within grid cells, so they don’t show the same jump at 1990.” McKitrick got the idea for the problem from an article by meteorologist Joe D’Aleo.
