(b) Wobble, axial tilt, and ellipticality work together to create the patterns of glaciation. Based on the radiation budget equation above, describe how these Milankovitch cycles could alter the Earth's climate, and more importantly, the climate for a particular location on Earth.

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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5) A study published by Milankovitch many years ago describes the Earth as going through
various orbital cycles (depicted in Fig. 10.5 below). These Milankovitch cycles can be
summarized as:
a) Orbital eccentricity - shifts in the shape of
Earth's orbit from a more circular shape to a
more elliptical shape over ~100,000 years
b) Axial tilt-shifts in the tilt of the Earth's axial
tilt from roughly 22° to 24.5° over roughly
40,000 years
c) Axial precession - Earth's north pole circulates
like a top, or wobbles, over about 25,000 years
Elliptical orbit
Wobble
Earth's axis "wobbles"
over a 26,000-year cycle.
Wobble
Axial tilt
Ellipticality
of orbit
Hot
Stages of
glaciation
Sun
Earth's elliptical orbit varies widely
during a 100,000-year cycle.
(a) The three Earth-Sun relationship factors of the
Milankovitch cycles.
M
Earth
Tilt
www
800
Cold
1000
24.5
21.55
Earth's axial tilt varies
over a 41,000-year cycle.
muam
wwwwwwwwwwwwwwww
Earth
600 400
Thousands of year ago
(b) Wobble, axial tilt, and ellipticality work together
to create the patterns of glaciation.
200
Based on the radiation budget equation above,
describe how these Milankovitch cycles could alter the Earth's climate, and more
importantly, the climate for a particular location on Earth.
Now
Transcribed Image Text:5) A study published by Milankovitch many years ago describes the Earth as going through various orbital cycles (depicted in Fig. 10.5 below). These Milankovitch cycles can be summarized as: a) Orbital eccentricity - shifts in the shape of Earth's orbit from a more circular shape to a more elliptical shape over ~100,000 years b) Axial tilt-shifts in the tilt of the Earth's axial tilt from roughly 22° to 24.5° over roughly 40,000 years c) Axial precession - Earth's north pole circulates like a top, or wobbles, over about 25,000 years Elliptical orbit Wobble Earth's axis "wobbles" over a 26,000-year cycle. Wobble Axial tilt Ellipticality of orbit Hot Stages of glaciation Sun Earth's elliptical orbit varies widely during a 100,000-year cycle. (a) The three Earth-Sun relationship factors of the Milankovitch cycles. M Earth Tilt www 800 Cold 1000 24.5 21.55 Earth's axial tilt varies over a 41,000-year cycle. muam wwwwwwwwwwwwwwww Earth 600 400 Thousands of year ago (b) Wobble, axial tilt, and ellipticality work together to create the patterns of glaciation. 200 Based on the radiation budget equation above, describe how these Milankovitch cycles could alter the Earth's climate, and more importantly, the climate for a particular location on Earth. Now
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