Frequency of cool summers in interior North America over the past three centuries

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFWR-SCP-O-1248153

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.