Global temperature patterns 6000 years ago. Progress report
Research is proceeding on schedule for the preparation of a global paleoclimatic data base for 6000 yr B.P. Computer files exist at Brown University for pollen, lake-level, and marine plankton data. New data and radiocarbon dates from Australia, Alaska, Labrador, and the Indian Ocean were obtained during 1982, and these are being added to the data base. Progress was made in gaining climatic estimates from pollen data in North America and Europe. Maps are included that show the temperature estimates for 6000 yr B.P. from central eastern North America. The estimates for mean annual temperature in this mid-latitude area average about 2/sup 0/C higher than the observed temperatures for today. Global maps are also presented for past lake levels and changes in the lake levels in closed basin lakes (Appendix A). These maps show that the water levels in lakes are lower today than at 6000 yr B.P. for almost all lakes in all regions. These changes are marked in northern Africa, Australia, and southwestern North America.
- Research Organization:
- Brown Univ., Providence, RI (USA). Dept. of Geological Sciences
- DOE Contract Number:
- AC02-79EV10097
- OSTI ID:
- 6558842
- Report Number(s):
- DOE/EV/10097-4; ON: DE83006815
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Global temperature patterns 6000 years ago. Progress report
Global paleoclimatic data base for 6000 yr BP