UH GEOL 1350 - climate (3 pages)

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climate



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climate

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climate


Lecture number:
19
Pages:
3
Type:
Lecture Note
School:
University of Houston
Course:
Geol 1350 - Introduction to Meteorology
Edition:
1

Unformatted text preview:

Geology 1350 Lecture 19 Outline of Last Lecture I Hurricanes II Global climate Outline of Current Lecture I Climate change Current Lecture Weather short term fluctuations temp pressure windspeed wind direction can last hours days or weeks specific location for specific time Climate longer term changes broad composite of average condition of a region temp rainfall ice cover winds years and longer mean state of specific region continent ocean or entire planet Climate is always changing but major concerns for mankind are rapid changes within a short period of time concerns include melting glaciers water storage will disappear droughts problems with water energy rising sea level due to melting glaciers and thermal expansion impact on coastal areas often densely populate climate zone will shift in particular precipitation patterns monsoons will change impact agriculture on distribution of insects included associated diseases higher ocean surface temp more and stronger tropical cyclones changing ocean currents due to change in freshwater saltwater distributions regional and large scale climate variations gulf stream time scales of climate change These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute different time resolution lake bottom sediments pollen in ice caves fossil evidence coral isotopes calcium carbonate layers in caves borehole temp dendrochronology or tree ring data written documents climate is always changing ice core records show that co2 values were about 180 280 ppmv for thousands of years until after 1800 o180 correlates with ice volume and ice volume correlates with co2 level in the atmosphere less ice when temperature are higher higher co2 levels ice core trend match well with atmospheric measurements started in 1958 at Mauna Loa by David Keeling components of climate system co2 can go into the soil as well as oil gas and coil greenhouse effect efficient



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