TROPICAL TEMPERATURE-VARIATIONS SINCE 20,000 YEARS AGO - MODULATING INTERHEMISPHERIC CLIMATE-CHANGE

被引：473

作者：

GUILDERSON, TP ^{[1
]}

FAIRBANKS, RG ^{[1
]}

RUBENSTONE, JL ^{[1
]}

机构：

[1] COLUMBIA UNIV,DEPT GEOL SCI,NEW YORK,NY 10027

来源：

SCIENCE | 1994年 / 263卷 / 5147期

关键词：

D O I：

10.1126/science.263.5147.663

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Tropical sea surface temperatures (SSTs), as thermodynamically recorded in Barbados corals, were 5-degrees-C colder than present values 19,000 years ago. Variable tropical SSTs may explain the interhemispheric synchroneity of global climate change as recorded in ice cores, snowline reconstructions, and vegetation records. Radiative changes due to cloud type and cloud cover are plausible mechanisms for maintaining cooler tropical SSTs in the past.

引用

页码：663 / 665

页数：3

共 49 条

[1] CALIBRATION OF THE C-14 TIMESCALE OVER THE PAST 30,000 YEARS USING MASS-SPECTROMETRIC U-TH AGES FROM BARBADOS CORALS [J].