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Meteorology 10.05 Weather & Climate

Instructor: Jan Null, CCM Spring 2016 Mon 18:00 – 21:00 Duncan Hall 515 COURSE WEB SITE: http://ggweather.com/met10/ [NO Canvas] SYLLABUS ON CLASS WEBSITE. Meteorology 10.05 Weather & Climate. Meteorology 10. The one science we deal with every day

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Meteorology 10.05 Weather & Climate

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  1. Instructor: Jan Null, CCM • Spring 2016 • Mon 18:00 – 21:00 • Duncan Hall 515 COURSE WEB SITE:http://ggweather.com/met10/[NO Canvas] SYLLABUS ON CLASS WEBSITE Meteorology 10.05Weather & Climate

  2. Meteorology 10 • The one science we deal with every day • Impacts on all aspects of our society • Topics • Fundamentals of the atmosphere • Storms, Tornadoes, Hurricanes • El Niño, La Niña • Climate Change • No Prior Knowledge of Math or Meteorology • But this is a SCIENCE class!!!

  3. Jan Null, CCM • BS Atmospheric Science, UC Davis, 1974 • MA Geography (Climate), SJ State, 1992 • National Weather Service 1974-1997 • Lecturer / Adjunct Professor of Meteorology – SFSU 1987-2014, SJSU 2014-present • Golden Gate Weather Services since 1998 • Forensic Meteorology • Consulting (Engineering, 500+ TV Interviews) • Forecasting (PG&E, wineries) • Research areas (El Nino, Hyperthermia) • Projects (AMNH, BASOC, SFPUC)

  4. Meteorology 10 • TEXTBOOK - OPTIONAL • Essentials of Meteorology , C.D. Ahrens, 7th ed. (5th or 6th okay) • Optional • Rental • or Check Amazon or half.com • or http://www.ichapters.com • or Copy in Reserve Book Room

  5. Course Plan • Mostly Lecture based • Fast Paced – LOTS OF MATERIAL • Supplemented • by Ahrens’ text • by web material • by other AV material • All PowerPoints will be posted to class website after class. • Especially important concept or information marked with

  6. Tentative Course Plan • Homework/Classwork • (200 pts) • Tests: All Multiple Choice • 2 midterms (100 pts each) • Final (200 pts) • Term Paper (200 pts) • 6 - 10 pages TOTAL 800 POINTS • Extra Credit Term Paper (100 Pts) • Other extra credit options

  7. Course Plan • Grading • 90% = A- , 80% B-, etc. • Adjusted curve • Integrity DO NOT PLAGARIZE ! Zero Tolerance Policy!

  8. House Rules • Common Courtesy Please • Cell phones • “Silent” or OFF • If you HAVE to take a call go outside • Please NO texting !! • If you take notes w/ a computer please sit in the back or along sides of the classroom

  9. My Contact Info • Office Hours • DH 618 • Mon 17:00 – 17:45 or by appointment • Contact Info • Golden Gate Weather Services: • Ofc: 408-379-7500 • jan.null@sjsu.edu {Preferred} • Please put Met 10 in Subject line @ggweather

  10. Who are You? • Name ? • Major? • Where do you get your weather info? • App? Which one? • Web? Site? • TV? Who or what? • Why are you taking this course? • What is your most memorable weather event?

  11. What Day is Tomorrow? Groundhog Day

  12. Groundhog Day • Ancient Celtic celebration called Imbolog. • Agrarian society celebrated midpoint: winter solstice and the spring equinox. • Superstition from if fair weather on Imbolog, the second half of the winter would be cold and stormy

  13. Groundhog Day • Christian times, Feb. 2 was celebrated as Candlemas • Scots said, ``If Candlemas be bright and clear, there'll be two winters in the year'‘ • English said, ``If Candlemas be sunny and warm, ye may mend your mittens and look for a storm.'‘

  14. Groundhog Day • Romans learned the tradition from the Celts • Brought it to the area that became Germany. • German immigrants brought beliefs to Pennsylvania • Tradition became centered on the woodchuck, or groundhog.

  15. Groundhog Day

  16. Only in America … … do we accept weather predictions from a rodent, but deny climate change evidence from scientists.

  17. Groundhog Day

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  29. Weather vs. Climate • What is Weather? • What is Going on in the Atmosphere Now • What is Climate? • Weather History • "Climate is what you expect,Weather is what you get". ~ R. Heinlein 

  30. Weather Elements What do we measure? • Temperature • Precipitation • Rain • Snow • Winds • Humidity • Pressure • Cloud Cover • Visibility

  31. Weather Extremes • Maximum Temperature • What’s the hottest you have experienced? • World / United States 134° Death Valley • California 134° Death Valley • San Jose 109° • San Francisco 103° • How many times has SF reached 100°?

  32. Weather Extremes • Minimum Temperature • World -129° Antarctica • United States -80° Prospect Creek, AK • California -45° Boca Reservoir • San Jose 18° • San Francisco +27° • How many times has SF had freezing temperatures?

  33. Weather Extremes • Humidity • Which of these cities has the highest annual average afternoon Relative Humidity (RH)? • Honolulu • Miami • Atlanta • San Francisco

  34. Weather Extremes • Humidity • Which city has the highest annual average afternoon Relative Humidity? • Honolulu (56%) • Miami (61%) • Atlanta (56%) • San Francisco (62%) • Why this apparent contradiction?

  35. Weather Extremes • Rainfall • 1 Hour Maximum • World - 15.78” Shangdu, China • United States - 12” Holt, MO (~42 minutes) • California - 4.70” Palomar • San Francisco - 1.92”

  36. Weather Extremes • Rainfall • 24 Hour Maximum • World 73.62” La Reunion Island • United States 43.00” Alvin, TX • California 26.12” Hoegees Camp • San Francisco 6.19” • San Jose 4.32”

  37. Weather Extremes • Rainfall • 1 Year Maximum • World 1042” Cherrapunji, India • United States 704” Kukui, Hawaii • California 257.9” Camp 9 • San Francisco 49.27” • San Jose 30.25”

  38. “Average” Weather • What is average? • What is normal? • Defined as the 30-year average • Updated each decade • Currently: 1981-2010

  39. Weather Extremes • Highest Normal Annual Rainfall • World 523” Lloro, Columbia • United States 460” Mt. Waialeale, HI • California 104.2” Honeydew • San Francisco 23.65” • San Jose 14.90”

  40. Weather Extremes • Snow • Have You Ever Seen Snow? In San Francisco? In San Jose? • 1 Year Maximum • World 1140” Mt. Baker, WA • California 884” Tamarack, CA • San Francisco 3.7” (1884) • San Jose 1” (1932)

  41. Weather Extremes • Measuring Wind • What parameters? • Speed • Sustained (2 min. average) • Gusts (1-3 sec. peak) • Direction

  42. Weather Extremes • Maximum Wind Gusts • World – 253 mph – Barrow Island, Australia • U.S. - 231 mph - Mt Washington, NH • California – 176 mph Ward Peak (Alpine Meadows) • SFO – 78 mph • Angel Island 103 mph

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