Climate. Earth Science Chapter 20 Pages

Transcription

1 Academic Excellence Showcase Thursday, May 27 Two points credit for each talk you attend in Earth science 8:30 to 10:30 AM, in NS 101 General Science video productions: Energy 9:00 to 11:00 AM, in NS 218 Geology of sedimentary formations in Oregon Coast Range One point credit for every four Earth Science posters you investigate in the Pacific Room of Werner Center 11:30 AM to 1:00 PM Attend the Medical Geology: effect of environment on health posters. (Those on poli-sci, math or physical education will NOT count for credit ) Must submit worksheets/ summaries and attendance tickets of each talk or poster for credit Link to worksheets, instructions, presentations: Climate Earth Science Chapter 20 Pages Elements of weather and climate Temperature Range of temperature Seasonal temperature pattern Rainfall Overall rainfall Seasonal distribution of rainfall Compared to evaporation potential Pressure Predominant pressure Seasonal fluctuation of pressure Weather vs. Climate Climate is the weather you expect Weather is what you get, whether you expect it or not Atmospheric Circulation Ocean circulation (Note: if you spell it whether it has a different meaning) Jan and July temps Values used for Koppen System Overall temperature Evaporation compared to precipitation Absolute rainfall Rainfall distribution Extreme temperature 1

2 Koppen Climate System A tropical: wet, monsoon, dry w/s B dry: desert/steppe, low/mid latitude C humid mid-latitude, mild winter: wet summer, dry summer west coast D humid mid-latitude severe winter E polar: tundra, ice cap H highland: modified version of local lowland area cooler, moister Af Tropical rainforest A Tropical climates NEVER COLD Rain forest always wet Monsoon extreme seasonal rainfall Savannah very dry months A Climatic diagrams Monsoon Climate Tropical Monsoon Due to arrival of ITCZ in a local area at a certain season ITCZ migrates out of area, leaving a distinct dry season Southern Asia, Sothwestern Pacific islands, Western Equatorial Africa, Northeastern South America, Aw Tropical Savannah Tropical Savanna Never cold Pronounced dry season: lasts longer than wet season Wet season isn t as wet as monsoon climate Subtropical desert 2

3 B Dry climates EVAPORATION POTENTIAL EXCEEDS PRECIPITATION Low latitude deserts always warm Subtropical high h pressure N and S of equator Mid latitude deserts can be quite cold Further poleward than low latitude deserts Rain shadow effect Cold desert B Cilmate Diagrams Steppe Climate Transition from desert climate to another climate next to the desert Not as dry as desert Desert has more evaporation compared to rainfall than steppe Sub-tropical Steppe Mid latitude steppe Dessert: mmm.cake (Do you see they are spelled differently?) Worldwide arid zones C Mild mid-latitude climate Humid MILD WINTER Divisions: Hot summer: dry or wet Warm summer: dry or wet Marine west coastal climate unique subdivision of dry summer that extends far poleward of other mild climates Moderated by the ocean and the westerlies 3

4 Mild Humid wet all year Mild, Dry summer climate C Climate Diagrams Marine west coast Coastal Alaska Northern mild climate due to incoming moist air from ocean by westerlies D Severe mid latitude SEVERE WINTERS Humid continental Cold winter Wet summer Hardwood forests Subarctic Not warm in summer Needle-leaf evergreens Taiga D Climate Diagrams Humid continental severe winter FRONTIMAGES/front6.jpg 4

5 Midlatitude humid continental Taiga Midlatitude humid continental E Polar climate TOO COLD FOR TREES Tundra some month is above freezing Ice cap no months are above freezing Tundra E Climate Diagrams Ice cap climate 5

6 Highland Modified version of local climate Cooler, moister Lowland adjacent to H Highland difference H compared to adjacent climate Components of climate Academic Excellence Showcase Thursday, May 27 Two points credit for each talk you attend in Earth science 8:30 to 10:30 AM, in NS 101 General Science video productions: Energy 9:00 to 11:00 AM, in NS 218 Geology of sedimentary formations in Oregon Coast Range One point credit for every four Earth Science posters you investigate in the Pacific Room of Werner Center 11:30 AM to 1:00 PM Investigate Medical Geology: effect of environment on health posters. (Those on poli-sci, math or physical education will NOT count for credit ) Must submit worksheets/ summaries and attendance tickets of each talk or poster for credit Link to worksheets, instructions, presentations: 6