I got tired of going through a climatist (a member of the cult of global warming) blog.
So we will look at sea level.
The following is from National Snow and Ice Data Center blurb State of the Cryosphere.
1. Pre-satellite the ocean was rising 1.7mm/yr (7 inches/century).
2. The satellite era rise is 3.0 mm/yr.
3. Climate models indicate the sea level may rise .22 to .44 mm more.
4. For the period 1961-2003, the observed sea level rise due to thermal expansion was 0.42 millimeters per year.
5. 0.69 millimeters per year due to total glacier melt (small glaciers, ice caps, ice sheets) (IPCC 2007).
6. Between 1993 and 2003, the contribution to sea level rise increased for both sources to 1.60 millimeters per year and 1.19 millimeters per year respectively (IPCC 2007).
1992 was when the first sea level monitoring satellite (TOPEX) was launched. So what is really being compared is tidal gauge (relative sea level height) to satellite (absolute sea level height) measurements. This is apples and oranges since the tidal gauges were mostly in civilized countries that had been covered with glaciers. The isostatic rebound been estimated at up to 1.2mm (on average). But this is highly dependent on the tidal gauge locations.
Thursday, May 31, 2012
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