ENVS 3010 Lecture Notes - Lecture 3: Sulfur Dioxide, Nios Embedded Processor, Trade Winds
14 Oct 2021
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Document Summary
Learning objectives: understand how volcanoes influence climate, discuss the el ni o phenomenon. Previously we discussed how the milankovitch forces are used to affect natural climate variability, here we will be continuing the discussion and focusing on volcanic eruptions and the. Volcanic eruptions have negative effects on environmental surroundings and climate. According to this graph between 1880 - 2000, we see dips in temperature, also known as a global cooling effect, occurring after large volcanic eruptions. These form dark clouds and cool areas underneath. The dust and ash can ascend to the stratosphere and travel around the world. These clouds reflect solar radiation back into space so sun rays do not reach earth, this is why we see a temperature decrease worldwide. Volcano eruptions can also release sulfur dioxide which can stay in the stratosphere as an aerosol for up to 3 years. Similar to dust and ash, sulfur dioxide reflects incoming solar radiation into space.
