Tropical Temperature Variations Since 20,000 Years Ago: Modulating Interhemispheric Climate Change
Abstract
Tropical sea surface temperatures (SSTs), as thermodynamically recorded in Barbados corals, were 5^circC 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.
- Publication:
-
Science
- Pub Date:
- February 1994
- DOI:
- 10.1126/science.263.5147.663
- Bibcode:
- 1994Sci...263..663G