Climate Change Flashcards
Climate
How the atmosphere behaves over a long period of time and space
Average regional weather pattern over decades
Weather
Conditions of the atmosphere over a short period of time
Can change witching minutes or hours
Temperature anomaly
Compare (subtract) the measured temperature from the normal (average temp) to get the anomaly
Anomalies are representative of temperature changes over large areas and distances a
What are the two ways to change the temperature of the earth?
- Change the amount of solar radiation reaching the earth (strength of sun or earths position to the sun)
- Chang the amount of greenhouse gases in the atmosphere
Solar cycle
11 year cycle where the sun brightens and darkens, relaxing various amounts of solar radiation
Milankovitch cycles
Describes how the chase of the earths orbit changes over time.
Eccentricity, precession, tilt
Highly predictable and operat eon long time scales
Eccentricity
Earths orbit changing between more circular and oval
Precession
Changes in axis direction
Parts of the earth will be warmer than others (by hemisphere)
Tilt
Change in the angle of the axis
Parts of the earth will be warmer than others
How does the concentration of GHG chin the atmosphere change over time
The natural carbon cycle, volcanoes, anthropogenic forcing
What’s really the cause of modern climate change?
Us.
It couldn’t possibly be anything else
Our observations match this cause
attenuate
The term describes how the amplitude of seismic waves gets smaller as they travel.