Physics
Scientific paper
Dec 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3223817h&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 23, CiteID L23817
Physics
9
Global Change: Solar Variability (7537), Atmospheric Processes: Atmospheric Electricity, Atmospheric Processes: Middle Atmosphere Dynamics (0341, 0342), Atmospheric Processes: Stratosphere/Troposphere Interactions
Scientific paper
Mechanisms by which small changes in the sun's energy output during the solar cycle can cause changes in weather and climate have been a puzzle and the subject of intense research in recent decades. Here we report that differences in surface circulation conditions during solar maximum and minimum periods are caused by differences in the frequencies with which circulation perturbations in the stratosphere reach the surface. A much greater fraction of stratospheric perturbations penetrate to the surface during solar maximum conditions than during minimum conditions. This difference is more striking when the zonal wind direction in the tropics is from the west: no stratospheric signals reach the surface when equatorial 50 hPa winds are from the west under solar minimum conditions, and over 50 percent reach the surface under solar maximum conditions. It has been previously shown that stratospheric circulation perturbations reaching the surface change weather patterns by imposing atmospheric pressure anomalies characteristic of the Arctic oscillation.
Hameed Sultan
Lee Jae N.
No associations
LandOfFree
A mechanism for sun-climate connection does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A mechanism for sun-climate connection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A mechanism for sun-climate connection will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1432707