Testing the sun-climate connection with paleoclimate data

Details Testing the sun-climate connection with paleoclimate data Testing the sun-climate connection with paleoclimate data

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3086...81c&link_type=abstract

In NASA, Goddard Space Flight Center, Climate Impact of Solar Variability p 81-89 (SEE N91-12456 03-92)

Physics

1

Climate, Earth Atmosphere, Solar Activity, Solar Activity Effects, Solar Constant, Solar Cycles, Solar Spectra, Statistical Analysis, Sun, Beryllium Isotopes, Carbon 14, Glaciers, Greenhouse Effect, High Resolution, Variations

Scientific paper

If there is a significant sun-climate connection, it should be detectable in high-resolution paleoclimate records. Of particular interest is the last few thousand years, where we have both indices of solar variability (C-14 and Be-10) and climate variations (alpine glaciers, tree rings, ice cores, corals, etc.). Although there are a few exceptions, statistical analyses of solar and climate records generally indicates a flickering relationship between the two -- sometimes it seems to be present, sometimes not. The most repeatable solar climate periods occur at approx. 120 and approx. 56 yrs, although there is also evidence for approx. 420 and approx. 200 yrs. power in some records. However, coherence between solar and climate spectra is usually low, and occurrence of solar spectra in climate records is sometimes dependent on choice of analysis program. These results suggest in general a relatively weak sun-climate link on time scales of decades to centuries. This conclusion is consistent with previous studies and with the observation that inferred climate fluctuations of 1.0 to 1.5 C on this time scale would require solar constant variations of approximately 0.5 to 1.0 percent. This change in forcing is almost an order of magnitude greater than observed changes over the last solar cycle and appears to be on the far-outer limit of acceptable changes for a Maunder Minimum-type event.

Affiliated with

Also associated with

No associations

Rating

Testing the sun-climate connection with paleoclimate data 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 Testing the sun-climate connection with paleoclimate data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Testing the sun-climate connection with paleoclimate data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1129227