Reply to comment by S . Peacock on “ Glacial ‐ interglacial circulation changes inferred from 231 Pa / 230 Th sedimentary record in the North Atlantic region ”
نویسندگان
چکیده
[1] Peacock [2010, P10 hereafter] takes issue with several aspects of our recent article [Gherardi et al., 2009, G09 hereafter]: (1) our description of the modern Atlantic meridional overturning circulation (AMOC), (2) apparent inconsistencies between modern circulation and our Holocene sedimentary Pa/Th bathymetric profile, and (3) our use of cores for reconstructing AMOC from locations that do not lie beneath the Deep Western Boundary Current (DWBC). We welcome the comment as it affords us the opportunity to clarify important aspects of our approach to studying paleocirculation and to address any potential misunderstandings arising from the wording of our original text.
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231Pa/230Th evidence for a weakened but persistent Atlantic meridional overturning circulation during Heinrich Stadial 1.
The strength of Atlantic meridional overturning circulation is believed to affect the climate over glacial-interglacial and millennial timescales. The marine sedimentary (231)Pa/(230)Th ratio is a promising paleocirculation proxy, but local particle effects may bias individual reconstructions. Here we present new Atlantic sedimentary (231)Pa/(230)Th data from the Holocene, the last glacial maxi...
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