Slide 1Oscillations Slide 2 Mass Spring Slide 3 The period is about 6.3 seconds, the frequency is 1/period=.016 Hz, the amplitude of velocity is about 23 m/s and the amplitude…

Slide 1What drives the ice age cycles? Slide 2 Milankovitch Theory of orbital forcing of ice sheets Tilt variations eccentricity variations precession of perihelion Slide…

Slide 1 NATS 101 Lecture 19 Climate and Climate Change Slide 2 Our changing climate Our climate is changing. In particular, surface temperatures are warming. => 2005 is…

NATS 101 Lecture 33 Climate Change (cont’d) Absorption 20% of incident Visible (0.4-0.7 m) is absorbed O2 an O3 absorb UV (shorter than 0.3 m) Infrared (5-20 m)…

NATS 101 Lecture 25 Climate Change (cont’d) Absorption 20% of incident Visible (0.4-0.7 m) is absorbed O2 an O3 absorb UV (shorter than 0.3 m) Infrared (5-20 m)…

Climate Cycles and Cycles in Earth’s Orbit Cycles give predictability because they repeat at regular intervals. One of the major climate discoveries is that for the past…