18 June 2011
Science has never stopped AGW disciples from claiming all manner of nonsense to further socialist political and economic objectives. The latest example is the assertion that sea level measurements must be manipulated to account for the rising level of the earth's land mass.
The University of Colorado’s Sea Level Research Group has determined that a glacial isostatic adjustment (GIA) of 0.3 millimeters per year must be added to global means sea level (GMSL) measurements from 1992 to the present in order to determine the actual eustatic sea level and account for what dry sections of Mother Earth are “experiencing” as they “recover” from “the last glacial cycle that occurred 20,000 years ago”.
Seriously, there are people who think and talk this way. You can check out the Group’s Website but be forewarned – your head may explode. http://sealevel.colorado.edu/
The FAQ section explains how the Group says GMSL is derived using satellite based altimeters, differs from tide gauge measurements, and is affected by total ocean water mass (e.g., melting glaciers and land ice sheets), changes in the size of the ocean basin (e.g., GIA), and the density of water (e.g., thermal expansion).
The Group further posits that data manipulation is required because the amount of earth’s dry surface is increasing and therefore oceans can hold more water and coastal measurements made at specific locations (e.g., relative sea level, or RSL) must be adjusted.
"We have to account for the fact that the ocean basins are actually getting slightly bigger [and that] water volume is expanding," said Steve Neren, Group Director.
It would be a good idea for the Group to first produce scientific proof that the amount of water on the earth has changed, especially since even Aggies know it remains a finite amount comprising one of three states; liquid, solid or gas.
"We’re considering putting both data sets on our website; a GIA-corrected dataset, as well as one without the GIA correction," Nerem said because “when studying local sea levels rates, which is important for policy planning, one definitely needs to…...”
Wait, did he just say “policy planning”?
Target! Gunner, cease loading.