BIOS10117 Lecture Notes - Lecture 14: Ocean Acidification, Coral Bleaching, Soot
22 Jan 2016
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Document Summary
Climate- patterns of precipitation, temp, humidity, and wind of time and space. Earth fluctuates between warmer and cooler periods due to interglacial periods. Small amount of radiation from the sun reflected, some absorbed by earth, some infrared radiation emitted by earth"s surface to escape to space, but greenhouse gases keep it in. Ice reflects more radiation than land, so ice sheets are important o. Greenhouse gases- absorb heat and warm atmosphere: o o o o o. Co2 is at highest level in 650,000 years. Also, air bubbles in polar ice cores retain atmospheric gases present when the ice was. Chlorofluorocarbons, but less of a problem now formed. This is how we can tell what atmospheric levels were like in past o. The diff between the baseline and each year"s temp is the temp anomaly o o. How to measure temp- tree rings indicate warm vs cold years- if tree rings were closer.
