ENVS 2270 Lecture Notes - Lecture 13: Ocean Current, Subtropics, Gulf Stream
12 Oct 2016
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In terms of precipitation anomalies: the tropics have generally seen increased precipitation, the sub-tropics are generally drying > decreased precipitation in already dry areas can be problematic, past 30 degrees you can see general small precipitation anomalies. Stippling effect in the graph indicates level of confidence for that area - greater stippling indicates greater confidence. **several graphs about temperature and precipitation anomalies on online lecture slides** Climate models consistently project an increase in temperature: global mean temperatures projected to rise 0. 5 to 4 degrees in the next century. Poles affected the most: heat waves will very likely occur with higher frequency and duration. Changes in precipitation in the next century are likely to occur: difficult to predict, less reliable predictions. High latitudes and equator will likely experience increases. Mid-latitudes and sub-tropics will likely experience decreases. Some areas will likely experience more extreme precipitation events.
