3.4 Earth's Seasons Flashcards
where does most of earths energy comes from
insolation
Insolation
incoming solar radiation
what affects the insolation reaching spots on earth
latitude and season
shape of earth
sphere
how does the shape of the earth affect the sun rays
the rays hit diff latitudes at diff angles so theres a diff intensity of solar radiation in certain places
describe the sun’s rays near the equator
perpendicular –> so the solar radiation is super intense bc its concentrated into small area
describe temp at equatorial latitude
very hot
describe the sun’s rays near the mid latitudes
hit earth at a slant so less intense than equatorial because its spread over a larger surface area
describe temp at mid latitudes
seasonal warm and cool bc medium intensity
describe the sun’s rays near the polar latitudes
sun rays hit at a very slant angle so spread over rly big surface area and less intense than mid latitudes and also they’re scattered because they have to diffuse through earths atmosphere
order the diffusing of rays at the latitudes from most to least
polar mid equator –> increases with more slant
temp of polar latitudes
cold
the earths axis of rotation is titled by how much
23.5
the earths rotation causes what
season
seasons
divisions of the year that very in temp weather and number of daylight hours
when does a place experience the most insolation ( season)
summer
when does a place experience the least insolation ( season)
winter
when does summer occur explain
when a hemisphere tilts toward the sun and there is more direct sunlight for more hours
summer solstice
the summer day with the longest period of daylight
when does a location on earths surface recieve the most solar radiation
on the summer solstice
when does winter occur + explain
when a hemisphere is titled away from the sun so it gets less direct sunlight for fewer hours
winter solstice
winter day with shortest period of daylight
when does a location experieince the least solar radiation
winter solstice
where does a majority of the heat and energy on earth come from
the sun
distance from the sun is a determining factor in seasons
true or false
false
the earths axial tilt is a determining factor of why we have seasons
true or false
true
how does the axial tilt determine the seasons
when earth is tilted toward the sun and there is a straight line from sun to earth there is higher concentration of sun bc of direct rays instead of tilted rays which disperse over larger area
