NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
The Sensitivity of Arctic Ozone Loss to Polar Stratospheric Cloud Volume and Chlorine and Bromine Loading in a Chemistry and Transport ModelThe sensitivity of Arctic ozone loss to polar stratospheric cloud volume (V(sub PSC)) and chlorine and bromine loading is explored using chemistry and transport models (CTMs). A simulation using multi-decadal output from a general circulation model (GCM) in the Goddard Space Flight Center (GSFC) CTM complements one recycling a single year s GCM output in the Global Modeling Initiative (GMI) CTM. Winter polar ozone loss in the GSFC CTM depends on equivalent effective stratospheric chlorine (EESC) and polar vortex characteristics (temperatures, descent, isolation, polar stratospheric cloud amount). Polar ozone loss in the GMI CTM depends only on changes in EESC as the dynamics repeat annually. The GSFC CTM simulation reproduces a linear relationship between ozone loss and Vpsc derived from observations for 1992 - 2003 which holds for EESC within approx.85% of its maximum (approx.1990 - 2020). The GMI simulation shows that ozone loss varies linearly with EESC for constant, high V(sub PSC).
Document ID
20060050752
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Douglass, A. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Stolarski, R. S.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Strahan, S. E.
(Maryland Univ. Baltimore County Baltimore, MD, United States)
Polansky, B. C.
(Science Systems and Applications, Inc. Lanham, MD, United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2006
Subject Category
Meteorology And Climatology
Distribution Limits
Public
Copyright
Public Use Permitted.
No Preview Available