Western Arctic Ocean temperature variability during the last 8000 years

Details Western Arctic Ocean temperature variability during the last 8000 years Western Arctic Ocean temperature variability during the last 8000 years

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3824602f&link_type=abstract

Geophysical Research Letters, Volume 38, Issue 24, CiteID L24602

Mathematics

Logic

Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Oceanography: General: Arctic And Antarctic Oceanography (9310, 9315), Oceanography: Biological And Chemical: Stable Isotopes (0454, 1041), Oceanography: Biological And Chemical: Trace Elements (0489), Paleoceanography: Palynology

Scientific paper

We reconstructed subsurface (˜200-400 m) ocean temperature and sea-ice cover in the Canada Basin, western Arctic Ocean from foraminiferal δ18O, ostracode Mg/Ca ratios, and dinocyst assemblages from two sediment core records covering the last 8000 years. Results show mean temperature varied from -1 to 0.5°C and -0.5 to 1.5°C at 203 and 369 m water depths, respectively. Centennial-scale warm periods in subsurface temperature records correspond to reductions in summer sea-ice cover inferred from dinocyst assemblages around 6.5 ka, 3.5 ka, 1.8 ka and during the 15th century Common Era. These changes may reflect centennial changes in the temperature and/or strength of inflowing Atlantic Layer water originating in the eastern Arctic Ocean. By comparison, the 0.5 to 0.7°C warm temperature anomaly identified in oceanographic records from the Atlantic Layer of the Canada Basin exceeded reconstructed Atlantic Layer temperatures for the last 1200 years by about 0.5°C.

Affiliated with

Also associated with

No associations

Rating

Western Arctic Ocean temperature variability during the last 8000 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 Western Arctic Ocean temperature variability during the last 8000 years, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Western Arctic Ocean temperature variability during the last 8000 years will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1608985