Weather and climate, climate zones

hasanahatesscience's version from 2015-11-27 02:12

Section 1

Question Answer
weather is the specific enviromental conditionsthat occur at a particular time and place
weather includestemp air pressure cloud cover and precipitation
weather forecasters use tools such asweather balloons satellites radar and computers to collect data
climateaverage weather conditions that occur over long period of time (30 years) includes average montly temp and precip
climate of an areadetermines types of vegetation that can grow and animals that can survive
latitudelines that run east and west and seperate the earth into north and south
.equatorthe line that determines north from south
greater the distance from the equatorthe colder it is
elevationdistance above sea level, the higher above sea level the colder it is
air that is moving along the ground can carrymoisture with it causing areas to get a lot of precip
in continental areaswind moves dry air keeping it hot in the summer and colder in the winter
water heats and cools slowerthan land
in spring the areas along the great lakesare cooler than the areas in land
in the fallthe water is warmer than the land
barriers like mountains force airup on one side causing warm moist conditions
other side of mountains is usually dry as the air falls back down
ocean currentsmass of water from polar region will decrease temp of land nearby
ocean currents warm waterfrom the tropics will increase the temp of land nearby
climate change a change in weather conditions in an area over a long period of time
changes in climatecan have both pos and neg impacts to society

Section 2

Question Answer
climate zonean area classied according the temp precip and types of plants that r there
ecozonesregion w particular set of climate conditions n natural features (soil landscape features and animals)
canada has 20 majorecozones across the country
eco reigions areclassified by more details than either climate zones or ecozones
canada has more than 194 ecozones
eco regions are smaller than ecozones
eco regions consider humanfactors such as crops and urban centres as well as the landscape soil and other living things
earths climate systemair land liquid water and ice, living things
climate systemis powered by the sun
interaction of these parts and the sunproduces climate zones
the suns amount of energy that reaches earth depends on shape angle and movement of earth
suns rays hit at a perpendicular anglein some areas around the equator. this enables them to absorb max amount of energy
north and south poles recieve the suns rays at an angle and therefore are not as intense
the earths tilt ccreates seasons
as earth travels around the suneach area will recieve diff amounts of energy at diff times of the year. in summer earth is tilted towards sun
earth rotates on its axisturning away from the sun and then back again. at night earth turns away and temp decreases
some energy reaches the earth
majority of suns energy is reflected back into space by the atmosphere
materials such as ice snow and water reflect energy easily
materials such as rocks and dirtreflect less energy
conductionenergy can be transferred through liquid or gas
when the suns rays hit the surface of the earthconvection causes air and water to move

Section 3

Question Answer
the different levels of the atmosphere includetrosphere stratosphere mesosphere thermosphere exosphere
exosphere10 000 km
thermosphere690 km
mesosphere85km meteors
stratosphere50km weather balloons
troposphere6-20km mount everest
biosphereall living things
atmospherelayered mixture of gases
lithosphereearths crust includes solid rock, soil and minerals
hydrosphereincludes water in all three states
heat energy from the sun warms the airand the earth unequally
areas located near the equator are warmerand this causes the air in atmosphere to heat up
as air warms it risesand moves over cooler
cold air sinks down and creates wind
hydrosphereenergy is added or removed when water changes state. cooling effect is water EVAPORTATING 2 vapour. heating is water condensing INTO LIQUID
water absorbs and storesthermal energy from sun
ice and snow reflectthe suns energy snow and ice cover keep arctic temps cold called ALBEDO EFFECT

Section 4

Question Answer
greenhouse gasesprevent the suns energy from being reflected back into space
natural greenhouse effectgreenhouse gases are needed to maintain temp of earth as it rotates from sun
suns energy passes thruatmosphere
most of suns energy is absorbed by the earth oceans and land and warms up
earths surface and atmosphere reflectsome of the solar energy
heated surfaces re emit infrared radiaition
infrared energy is reemitted by the greenhouse gases

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