1.1.3 Flashcards
what is a HIGH energy coastline?
stretches of the coastline where the rate of EROSION is GREATER than deposition
what is a LOW energy coastline?
stretches of the coastline where the rate of DEPOSITION is GREATER than erosion
what are some landforms found at a HIGH energy coastline?
HEADLANDS, CLIFFS and WAVE-CUT PLATFORMS
what are some landforms found at LOW energy coastlines?
BEACHES and SPITS
which coastline is EXPOSED to prevailing winds?
HIGH energy coastlines
what is a prevailing wind?
the DIRECTION that wind blows over MOST OFTEN
where is the prevailing wind in the UK?
WESTERLY WINDS
what are the waves like at SHALLOW depth?
STEEPER due to FRICTION causing base of the wave to SLOW down
why don’t WESTERLY WINDS create DAMAGING waves at the EAST?
its blowing OFFSHORE
where are STRONG WINDS that are capable of creating the LARGEST WAVES more frequently found?
COOL TEMPERATE western maritime climates
why do COOL TEMPERATE western maritime climates have HIGH wind SPEEDS?
it is where frontal DEPRESSIONS form over the oceans as WARM TROPICS and COLD POLAR AIR masses MEET
which part of the hemisphere has GREATER WAVE HEIGHT and ENERGY?
SOUTHERN hemisphere
why does the SOUTHERN hemisphere have GREATER WAVE HEIGHT and ENERGY?
westerly winds, depressions and ocean currents (Antarctic drift) have UNINTERRUPTED PASSAGES around the globe as so little land extends south of 45 degrees.
whats the MAXIMUM FETCH for the british isles?
WESTEELY WINDS blowing ONSHORE across the ATLANTIC onto the WEST COAST
what are the DIRECTIONS that the WIND BLOWS that causes GREATEST IMPACT for Eastern Scotland and England?
NORTH and EAST - these are the winds that produce the LARGEST waves.
