ATSC 113 Lecture Notes - Lecture 5: Squall, Coast Mountains, Cumulonimbus Cloud
Document Summary
3main factors that affect wave: wind velocity, fetch, and duration. Most waves formed by swell(gravity waves originating from heavy winds) Rogue waves(result of constructive) wave steepnessexceeds 1:7, unstable and breaks. 3basic types of breaking waves: spilling breakers( gently ), plunging breakers, and surging breakers. onshore wind(from ocean) and offshore wind(from land). Beaufort wind force scale: 0(< 1) calm/1(1-3)light air. 52ft)/12 (64+) hurricane zonal winds(east-west direction )/meridional winds(north and south) The warmer air near the equator rises and creates a region of heavy rain and thunderstorms called thethe intertropical convergence zone (itcz) As air accumulates at 30 latitude, the pressure aloft increases, and forces some of the air downward toward the ocean surface. Air accumulates here, and creates a subtropical high pressure zone. Polar cells occur between about 60 latitude and the poles. air movements:weak. Jet streams are fast flowing, narrow bands of wind in the upper atmosphere that circles the globe, greater the difference in temperature, the stronger the winds.
