HR: 17:20h
AN: GP54A-04 INVITED     [Abstracts]
TI: Century-Scale Variations of Solar and Geomagnetic Activity and Their Possible Role in Climate Change.
AU: * Feynman, J
EM: Joan.Feynman@jpl.nasa.gov
AF: Jet Propiulsion Laboratory , California Institute of Technology, MS 169-506 4800 Oak Grove Dr. , Pasadena, CA 91109, United States
AU: Ruzmaikin, A
EM: Alexander.Ruzmaikiin@jpl.nasa.gov
AF: Jet Propiulsion Laboratory , California Institute of Technology, MS 169-506 4800 Oak Grove Dr. , Pasadena, CA 91109, United States
AB: Modeling of the effects of solar variability on atmospheric temperatures indicates that the response of the ocean is an important factor. The thermal inertia of the ocean tends to damp changes in atmospheric temperature on time scales of the solar cycle and less. However, over longer time scales the damping is less effective. This suggests that systematic solar variations on longer time scales are more effective in changing climate. We will discuss evidence that century scale variations in the Sun and the geomagnetic activity, such as the 88-year cycle, and the Grand Maxima and Minima have resulted in observed climate change.
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1650 Solar variability (7537)
SC: Geomagnetism and Paleomagnetism [GP]
MN: 2007 Joint Assembly