EARTH 10 Lecture Notes - Lecture 15: Pine Island Glacier, Thwaites Glacier, Sea Level Rise
Document Summary
Air temperatures = west 0. 47+/-0. 23c per decade & east 0. 58+/-0. 31c per decade. One of the fastest places on earth (global average 0. 13+/-0. 03c) W. aa ice sheet contributes to sea level rise (dec. -jan. Also change in temp. , winds, bio, sea ice formation, glaciers, ice shelves, sea levels. Melting ice has no change in sea level in sea ice or ice shelves but buttressing effect. [thing to hold up against] lost (glaciers speed up behind, ice sheet mass increases sea level) Global average of sea level rise is 1900-2009 (1. 7 mm/yr) & 1993-2009 (3. 2mm. yr) Glacial meltwater of thermal expansion of oceans. Expect 0. 3 to 0. 8m rise in the future: aa"s pine island glacier (pig) Fastest melting glacier in aa, 25% of loss. Weak underbelly of the aa sheet also loss from thwaites glacier. Circum-aa winds +15-20% in last 20 years. Driven by warmer sea surface temperatures in winter + storms in the summer.