Saltating particles, playa crusts and dust aerosols at Owens (dry) Lake, California

Response of aeolian processes to global climate change

Auteur(s) et Affiliation(s)

CAHILL, T.A.

Air Quality Group, Crocker Nuclear Laboratory, University of California, Davis, California, Etats-Unis

LANCASTER, N.

Desert Research Institute, Reno, Etats-Unis

Description :
The AA. have studied the generation of dust storms on the south sand sheet of Owens (dry) Lake, an anthropogenically dessicated playa reported to be the single greatest source of particulate matter in North America. During March 1993, they performed an intensive field study including 8 significant dust storms. They studied sources and magnitude of coarse saltating particles, the meteorological conditions that allow them to become mobile, and how the motion of saltating particles across different types of playa surfaces results in the generation of PM10 dusts (aerosol particles smaller than 10 μm aerodynamic diameter).

Type de document :
Congrès

Source :
Workshop on the response of aeolian processes to global change, Zzyzx, Etats-Unis, 1994-03-24, Earth surface processes and landforms, issn : 0197-9337, 1996, vol. 21, n°. 7, p. 621-639, Collation : Illustration, Références bibliographiques : 33 ref.

Date :
1996

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley

Langue :
Anglais