Notes for Meteorology 356

November 17, 2004

Socrates Figueroa

Reading:

Reader Completed: Sections I, II, III (Except 55-64); Section IV (Browsed--Portions Discussed); Section V (281-288; 292,294); Section VI; Section VIII New: Section VII (Browse); Section IX 366-373; 512-516; Section X

Review:

· First looked at the 1km visible satellite image (Tully fog). Central Valley fog; advection fog off the coast, no fog in SF airport.

· Viewed Surface Data Plot 16G to verify the visible satellite image.

· Pressure gets high at night when Jet Stream is not present.

· Jet Stream is over Canadian Boarder, Great Lakes, and Southward into Atlantic.

New Material:

· Looked at all observations in Sacramento for past 24 hours.

· Looked at how first it is a haze, then fog, no advection fog, pressure has been rising development of Great Basin Thermal High.

· Looked at graph of temperatures in California (year to year variation, regression line)

· Talked about Green House Effect

-Looked at San Francisco Strom return Period Chart

· Placing rainfall amount to how often they will occur

· San Francisco flash flood; Meteorological overview (rainfall amounts, viewed map, concepts of Return Period, viewed pictures)

-Return Periods on Winds

· Santa Cruz Mountains 70mph winds; SF 50-60mph

-Climate Changes Occur

· 30 year running Averages-Seasonal Rainfall

· 19^th to 20^th century, decrease in Rainfall

· Now an increase in Rainfall

-Coefficient of Variation

· Rainfall varies (smaller the number the more reliable)

· Gone from heavy to low to heavy

· Could be evidence but too soon to say