Go to Page Main Content
NASA - Goddard Institute for Space Studies + NASA Portal
+ Goddard Space Flight Center
+ GSFC Earth Sciences Division
FIND IT @ NASA
NASA Homepage Goddard Institute for Space Studies

ABSTRACT

Koster et al. 1992

Koster, R.D., J. Jouzel, R.J. Suozzo, and G.L. Russell, 1992: Origin of July Antarctic precipitation and its influence on deuterium content: A GCM analysis. Clim. Dynam., 7, 195-203, doi:10.1007/BF00206861.

The NASA/GISS GCM is used to estimate the evaporative contributions of several oceanic regions (defined by temperature) to Antarctica's July precipitation. Tracer diagnostics in the GCM suggest that the weighted average evaporative source temperature for Antarctic precipitation as a whole is about 12°C. The average source temperature for local precipitation there varies from 9°C to 14°C. To examine the effect of evaporative source on water isotope concentration, the GCM also follows a global deuterium (HDO) tracer and deuterium tracers evaporating from each oceanic region. The results suggest that although evaporative source temperature does affect the concentrations of the individual HDO tracers, differences in evaporative source do not explain the scatter in the roughly linear relationship between condensation temperature and isotope concentration.

Citation Styles

Show: ACP, AGU, AMS, ApJ, JQSRT, Science style

+ GISS Home

PUBLICATIONS
  • Publications Main Page
  • Authors
  • GISS Best Publication Award
  • Dissertations
  • Advanced Search
  • Publications Help
USA.gov

End of Page