Physics
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3607705g&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 7, CiteID L07705
Physics
Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Regional Climate Change, Biogeosciences: Paleoclimatology And Paleoceanography (3344, 4900), Biogeosciences: Natural Hazards
Scientific paper
An innovative technique utilizes a tree-ring marker to investigate long-term changes in the frequency of cool summers in Interior North America (INA), a region that currently suffers important gaps in knowledge concerning annual to secular temperature changes. Using multivariate adaptive regression splines (MARS), we established a threshold for the formation of climatically-induced light rings recorded in Pinus banksiana trees from INA. Then, we used the MARS model to reconstruct negative departures in summer maximum temperatures (April-September) from 1717 to 2007. The estimates explain 45% of the variance in instrumental temperature data. The reconstruction indicates the presence of significant multidecadal changes in the frequency of cool summers, with maximums in 1780, 1900 and 1960 and minimums in 1740, 1860, 1920 and 2000. No evidence of secular changes was found.
Conciatori France
Epp Brock
Girardin Martin P.
Tardif Jacques C.
No associations
LandOfFree
Frequency of cool summers in interior North America over the past three centuries 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 Frequency of cool summers in interior North America over the past three centuries, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency of cool summers in interior North America over the past three centuries will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1248153