EESC 1174 Lecture Notes - Lecture 1: Sea Level Rise, Evapotranspiration, Amazon Rainforest
20 Jun 2016
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Tipping point: abrupt change between two equilibria, freshwater forcing of thermohaline circulation strong circulation today. A. 2. more rain and melting water makes it fresher, at point there is a large drop off weak circulation. It that conveyor belt stops it becomes warmer down south and cold in the north. Do not know what the current situation is. A. 2. a) maybe 10% weaker: greenland ice sheet melt. A. 1. once equilibrium lifts above the top of the ice sheet it is a goner (no annual accu- mulation anymore) A. 2. if it gets warm enough the summer snow line no longer exists because it rises over the ice sheet. A. 2. a) all the snow will melt in the summer and there is not way to add mass any- more. A. 1. b) ice sheet no ice sheet (a. 1. b. 1) take a while to lose the ice sheet, but once you go below that eleva- tion line for snow accumulation it will go away.
