Re the proportion level increase due to of thermal and...

  1. 13,269 Posts.
    lightbulb Created with Sketch. 39
    Re the proportion level increase due to of thermal and melt

    Current conditions: contribution from melting glaciers

    Global sea level is currently rising as a result of both ocean thermal expansion and glacier melt, with each accounting for about half of the observed sea level rise, and each caused by recent increases in global mean temperature. For the period 1961-2003, the observed sea level rise due to thermal expansion was 0.42 millimeters per year and 0.69 millimeters per year due to total glacier melt (small glaciers, ice caps, ice sheets) (IPCC 2007). 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).


    Note the figures are averages, so the 3 mm py may be the recent value.

    http://nsidc.org/cryosphere/sotc/sea_level.html
 
arrow-down-2 Created with Sketch. arrow-down-2 Created with Sketch.