Maine Sea Kayak Guide Licences (Ocean Dynamics) Questions and Answers 100% Solved correctly

onshore wind - wind that blows from the sea towards the land Venturi effect - wind flowing through a restricted space and increases wind speed. Questions when in big waves - Can we see out clients? Can they stay upright? Where might the wave break? Wavelength - Horizontal distance between the crests or between the troughs of two adjacent waves wave height - the vertical distance from the crest of a wave to the trough wave period - the time required for corresponding points on consecutive waves to pass a given point What would be steeper? 2 foot waves every 4 seconds or 2 foot waves every 7 seconds? - 2 foot waves every 4 seconds would be steeper. When do waves break? - When water depth is one-and-a half times the wave height. When would a 4 foot wave break? - How tall would a wave that broke in 6 feet of water be? When would a 2 foot wave break? - How tall would a wave that broke in 3 feet of water be? spilling breakers - -gently sloping sea floor -wave energy expended over longer distance-water slides down front slope of wave plunging breakers - surf waves characterized by a curl that forms as the top of the wave pitches through the air and then splashes into the bottom of the wave surging breaker - A compressed breaking wave that builds up over a short distance and surges forward as it breaks. It is characteristic of abrupt beach slopes. What kind of wave are good for landing in surf in? - Spilling waves on a flat beach are idea for what? What causes rough seas near points of land? - Where does refraction (wave bending inward and piling up) of waves commonly cause rough seas? Clapotis effect - Waves hit a smooth vertical surface without loosing much power, reflecting back and merging with oncoming waves make for an explosive spike. Beaufort Scale - a scale for estimating wind speed on land or sea (go to other set to practice) Scenario: Foggy Day with no current. 3 knots padding speed with target location 3 miles away. Compass bearing 90 degrees. How long will it take to reach the destination? - 1 hours of travel time...what are some factors that can make this happen? Scenario: 270 Degree with 1 knot of current, 3 knots paddling speed, target 3 miles away, compass bearing 90 degrees. How long will it take to reach the destination? - 3 knots paddling speed- 1 knot current = 2 knots forward progress = 1.5 hours