Evidence of solar and tropical-ocean forcing of hydroclimate cycles in southeastern Australia for the past 6500 years

Details Evidence of solar and tropical-ocean forcing of hydroclimate cycles in southeastern Australia for the past 6500 years Evidence of solar and tropical-ocean forcing of hydroclimate cycles in southeastern Australia for the past 6500 years

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3710705m&link_type=abstract

Geophysical Research Letters, Volume 37, Issue 10, CiteID L10705

Physics

1

Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Atmospheric Processes: Paleoclimatology (0473, 4900), Atmospheric Processes: General Circulation (1223), Geographic Location: Australia

Scientific paper

Evidence of solar and tropical-ocean forcing of climate cycles has been found in numerous palaeoclimate records. Numerical modelling studies show physical mechanisms by which direct and indirect solar forcing may affect climate, while there is mounting evidence of solar forcing of tropical ocean-atmosphere teleconnections. This study has developed a 6500 year record of dust deposition, a proxy for regional hydroclimate variability for the Snowy Mountains region of Australia. Spectral analysis of the record provides evidence of statistically significant cycles in dust deposition of 35-43 years, 62-73 years, 161 years and 2200 years. These correlate with variability in solar irradiance and the Pacific Decadal Oscillation (PDO). We present evidence to support physical links between variability in solar irradiance and change in the hydroclimate of southeast Australia and suggest that the effects of global warming and solar maxima on atmospheric circulation over extra-tropical regions may exacerbate these impacts.

Affiliated with

Also associated with

No associations

Rating

Evidence of solar and tropical-ocean forcing of hydroclimate cycles in southeastern Australia for the past 6500 years 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 Evidence of solar and tropical-ocean forcing of hydroclimate cycles in southeastern Australia for the past 6500 years, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence of solar and tropical-ocean forcing of hydroclimate cycles in southeastern Australia for the past 6500 years will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-792449