TY - JOUR
T1 - Cooling of tropical Brazil (5°C) during the last glacial maximum
AU - Stute, M.
AU - Forster, M.
AU - Frischkorn, H.
AU - Serejo, A.
AU - Clark, J. F.
AU - Schlosser, P.
AU - Broecker, W. S.
AU - Bonani, G.
PY - 1995
Y1 - 1995
N2 - A 30,000-year paleotemperature record derived from noble gases dissolved in carbon-14-dated ground water indicates that the climate in lowland Brazil (Piaui Province, 7°S, 41.5°W; altitude, 400 meters) was 5.4° ± 0.6°C cooler during the last glacial maximum than today. This result suggests a rather uniform cooling of the Americas between 40°S and 40°N. A 5.4°C cooling of tropical South America is consistent with pollen records, snow line reconstructions, and strontium/calcium ratios and δ18O coral records but is inconsistent with the sea-surface temperature reconstruction of CLIMAP (Climate: Long-Range Investigation, Mapping and Prediction). On the basis of these results, it appears that the tropical Americas are characterized by a temperature sensitivity comparable to that found in higher latitudes.
AB - A 30,000-year paleotemperature record derived from noble gases dissolved in carbon-14-dated ground water indicates that the climate in lowland Brazil (Piaui Province, 7°S, 41.5°W; altitude, 400 meters) was 5.4° ± 0.6°C cooler during the last glacial maximum than today. This result suggests a rather uniform cooling of the Americas between 40°S and 40°N. A 5.4°C cooling of tropical South America is consistent with pollen records, snow line reconstructions, and strontium/calcium ratios and δ18O coral records but is inconsistent with the sea-surface temperature reconstruction of CLIMAP (Climate: Long-Range Investigation, Mapping and Prediction). On the basis of these results, it appears that the tropical Americas are characterized by a temperature sensitivity comparable to that found in higher latitudes.
UR - http://www.scopus.com/inward/record.url?scp=0029487656&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029487656&partnerID=8YFLogxK
U2 - 10.1126/science.269.5222.379
DO - 10.1126/science.269.5222.379
M3 - Article
C2 - 17841260
AN - SCOPUS:0029487656
SN - 0036-8075
VL - 269
SP - 379
EP - 383
JO - Science
JF - Science
IS - 5222
ER -