Wetter or colder during the Last Glacial Maximum ? Revisiting the pluvial lake question in southwestern North America

Auteurs :
MENKING, K.M.
ANDERSON, R.Y.
SHAFIKE, N.G.
SYED, K.H.
ALLEN, B.D.

Description :
The AA. use an array of models for surface-water runoff, groundwater flow, and lake energy balance to examine previously proposed scenarios for late Pleistocene climate. Constraints imposed by geologic evidence of past lake levels indicate that precipitation for the Last Glacial Maximum (LGM) may have doubled relative to modern values during brief episodes of colder and wetter climate and that annual runoff was as much as 15% of annual precipitation during these episodes.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 2004, vol. 62, n°. 3, p. 280-288, nombre de pages : 9, Collation : Illustration, Références bibliographiques : 40 ref.

Date :
2004

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier