An internal forcing mechanism is a factor in Earth's atmosphere or on Earth that affects the climate. An External Forcing mechanism is a factor that is present, past the atmosphere. (ie. Axis tilt, distance form the Sun, solar storms)
Re: Meteorology B
Posted: November 1st, 2014, 5:33 pm
by John Richardsim
embokim wrote:
An internal forcing mechanism is a factor in Earth's atmosphere or on Earth that affects the climate. An External Forcing mechanism is a factor that is present, past the atmosphere. (ie. Axis tilt, distance form the Sun, solar storms)
Yep, your turn.
Re: Meteorology B
Posted: November 30th, 2014, 4:26 am
by John Richardsim
Okay, let's keep this marathon rolling.
Fill in the blanks: Earth's axial tilt varies between ___° and ___° with a period of roughly ______ years.
Re: Meteorology B
Posted: November 30th, 2014, 6:46 am
by Unome
21-24 degrees over 24,000 years
Re: Meteorology B
Posted: November 30th, 2014, 8:14 am
by John Richardsim
Unome wrote:
21-24 degrees over 24,000 years
Yeah, that's off.
Re: Meteorology B
Posted: December 3rd, 2014, 6:48 am
by XturtleX
Not sure how to hide this but... 22.1 to 24.5 over a 41000 year cycle called obliquity and is a factor if the milankovitch cycles.
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Re: Meteorology B
Posted: December 3rd, 2014, 12:59 pm
by John Richardsim
XturtleX wrote:Not sure how to hide this but... 22.1 to 24.5 over a 41000 year cycle called obliquity and is a factor if the milankovitch cycles.
Correct, your turn.
Re: Meteorology B
Posted: December 5th, 2014, 2:55 pm
by XturtleX
What drives thermohaline circulation and how does the water return to the equator?
Re: Meteorology B
Posted: December 5th, 2014, 4:50 pm
by SomeGuyOutThere
It's driven by differences in density due to different water temperatures and salinities in ocean water, forming a large global "conveyor belt." It goes to the equator because the density is higher at the poles and salinity is slightly lower at the equator than its surroundings.