Climate 1: All Flashcards

(37 cards)

1
Q

What is an ecoregion

A

climate zones that focus on landforms, soil, life, climate, and human activity

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2
Q

What is the acronym for factors that affect climate

A

LOWERN: Latitude, Ocean Current, Wind and air masses, Elevation, Relief, and Near Water

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3
Q

What is a bioclimate profile (AKA Climateograph)

A

Graphical representation of current and future climate data - includes temp and moisture conditions

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4
Q

do volcanic eruotions warm or cool the earth

A

cool - Ash flow

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5
Q

what are the things that make earth’s orbit variable

A

Eccentricity
Tilt
Precession - The axis moves

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6
Q

How often does el nino occur

A

3-7 years

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7
Q

what are some causes of climate change that are neither short nor long term

A

water vapour feedback loop
Albedo

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8
Q

how does the water vapour feedback loop work

A

Atmosphere warms - increased
evapouration - further warming - more
evapouration…
OR
Atmosphere cools  less evapouration 
more cooling…

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9
Q

What is Albedo

A

the amount of light reflected by a surface
e.g. Land has an albedo of about 0.20.

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10
Q

how do we study climate changes across history

A

we dig up ice
bubbles in the ice reveal the concentration of greenhouse gasses

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11
Q

how far back do we know about climate patterns

A

800 000y

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12
Q

what are the three things we can use to date climate change

A

tree rings, coral, and rock formations

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13
Q

in which ecoregion do we live

A

mixed wood plains

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14
Q

how much energy is absorbed by land and oceans

A

51%

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15
Q

how much is reflected by atmosphere and clouds

A

30%

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16
Q

what is the average global temperature

17
Q

what is the atmosphere made up of

A

Made up of 78% N
21% O

18
Q

What are the layers of the atmosphere IN ORDER (from innermost to outermost)

A

Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
TSMTE

19
Q

What happens in the troposphere

A

Weather!
8/16 km above earth

20
Q

What happens in the stratosphere

A

16-50 km above earth
contains the ozone (blocking UV rays)

21
Q

what caused the hole in the ozone to be formed and discovered in the 90s

A

chlorofluorocarbons (in fridges and aerosol cans)

22
Q

what happens in the mesosphere

A

50-80 km above
meteors burn up

23
Q

what happens in the thermosphere

A

85-690 km above
ISS is here
northern lights are formed here due to ionisation

24
Q

what happens in the exosphere

A

690-10 000km
Outermost

25
what are surface currents
Affect the uppermost 100-200m of water. caused by winds. major effect on climate and weather conditions
26
what are gyres
Bordered by one or more continents cause surface currents to move clockwise above the equator and counterclockwise below the equato
27
what is the coriolis effect
Rotation of the earth cause winds to deflect off to the right in the northern hemisphere and deflect off to the left in southern hemisphere
28
what is the gulf stream
Delivers warm water from the tropics to western Europe. Radiates heat into the atmosphere
29
what is the california current
Brings cool water south. Hawaii for example is in the tropics but has cooler climate than other tropic locations
30
What is the global conveyer belt
powered by temperature and density moves slowly around the earth
31
what is a heat sink
any heat reservoir
32
what is wind
air moving from areas of high to low pressure
33
what is a prevailing wind
a constant wind that happens because of areas of high and low pressure
34
is water at the poles less or more salty
more
35
why is water at the poles saltier?
ice rejects salt, remaining water is more salty and dense
36
what is thermohaline circulation
Continuous flow of water around the world’s oceans caused by change in temperature and salinity
37
please remember to memorize the Great Ocean Conveyer Belt
okay :)