Climate 1: All Flashcards
(37 cards)
What is an ecoregion
climate zones that focus on landforms, soil, life, climate, and human activity
What is the acronym for factors that affect climate
LOWERN: Latitude, Ocean Current, Wind and air masses, Elevation, Relief, and Near Water
What is a bioclimate profile (AKA Climateograph)
Graphical representation of current and future climate data - includes temp and moisture conditions
do volcanic eruotions warm or cool the earth
cool - Ash flow
what are the things that make earth’s orbit variable
Eccentricity
Tilt
Precession - The axis moves
How often does el nino occur
3-7 years
what are some causes of climate change that are neither short nor long term
water vapour feedback loop
Albedo
how does the water vapour feedback loop work
Atmosphere warms - increased
evapouration - further warming - more
evapouration…
OR
Atmosphere cools less evapouration
more cooling…
What is Albedo
the amount of light reflected by a surface
e.g. Land has an albedo of about 0.20.
how do we study climate changes across history
we dig up ice
bubbles in the ice reveal the concentration of greenhouse gasses
how far back do we know about climate patterns
800 000y
what are the three things we can use to date climate change
tree rings, coral, and rock formations
in which ecoregion do we live
mixed wood plains
how much energy is absorbed by land and oceans
51%
how much is reflected by atmosphere and clouds
30%
what is the average global temperature
15 C
what is the atmosphere made up of
Made up of 78% N
21% O
What are the layers of the atmosphere IN ORDER (from innermost to outermost)
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
TSMTE
What happens in the troposphere
Weather!
8/16 km above earth
What happens in the stratosphere
16-50 km above earth
contains the ozone (blocking UV rays)
what caused the hole in the ozone to be formed and discovered in the 90s
chlorofluorocarbons (in fridges and aerosol cans)
what happens in the mesosphere
50-80 km above
meteors burn up
what happens in the thermosphere
85-690 km above
ISS is here
northern lights are formed here due to ionisation
what happens in the exosphere
690-10 000km
Outermost