GEOG 170A1 Lecture Notes - Lecture 13: Coastal Erosion, Ocean Current, Global Warming In Tuvalu
14 Nov 2014
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Document Summary
Geog 170- earth"s environment: introduction to physical geography - lecture 13: El nino (the baby, or christ child so named because this happens in december in the northern hemisphere) results when warm ocean water in the western pacific sloshes against the americas (north and south america) in the eastern pacific. Warmer ocean water piles up in the eastern pacific, increasing evaporation and, thus, winter precipitation. Global temperatures have risen 0. 5 degrees celsius over the last 100 years. Ice-albedo feedback effect: the arctic is warming fastest due to the increased melting of sea ice. Effects of the melting" arctic will be felt at great distances increasing sea levels and changing ocean circulation. Ocean circulation (i. e. , thermohaline circulation) will change as fresh meltwater dilutes the saltiness of seawater, changing seawater densities and circulation patterns. Climate change is a general term for all climate changes.
