GLOBAL CLIMATE CHANGE: IMAGES
Chapter 1 Images
We will use Celsius throughout this class as much as possible. Please familiarize yourselves with this scale relative to Fahrenheit and Kelvin.
Time scale and Resolution: How does Resolution (detail of climate characteristics in the past) change through time? Distant past -- millions of years -- thousands of years -- hundreds of years -- tens of years? How do our records of past climate change over these time scales?
Time scales of different forcing mechanisms
Forcing Mechanisms -- Factors that cause changes in climate over time:
Tectonic mechanisms, plate tectonics -- rates of spreading of plates
Changes in Earth's Orbit around the Sun -- changes in amount of insolation received in different hemispheres, seasonality
Changes in the energy output of the Sun -- sunspot cycles, gradual increasing in intensity
Response Time: How much time it takes for climate to respond, to change, in response to a forcing mechanism
Example: time it takes for water to heat up in response to flame under crucible, from time heat is turned on.
Heat is applied, water heats up, but keeps warming for a while after heat is turned off.