Altitude dependence of stratospheric ozone trends based on Nimbus 7 SBUV data

Journal Article · Tue Dec 14 00:00:00 EST 1993 · Geophysical Research Letters (American Geophysical Union); (United States)

DOI:https://doi.org/10.1029/93GL03087· OSTI ID:5035774

Hood, L L; McCormack, J P ^[1]; McPeters, R D; Gleason, J F ^[2]; Flynn, L E ^[3]; Hollandsworth, S M ^[4]

---

1. Univ. of Arizona, Tuscon, AZ (United States)
2. NASA/GSFC, Greenbelt, MD (United States)
3. Software Corp. of America, Lanham, MD (United States)
4. Applied Research Corp., Landover, MD (United States)

A multiple regression statistical model is applied to estimate the altitude, latitude, and seasonal dependences of stratospheric ozone trends using 11.5 years of Nimbus 7 SBUV data for the period November 1978 to June 1990. In the upper stratosphere, the derived trends agree in both latitude dependence and approximate amplitude with published predictions from stratospheric models that consider gas-phase chemical processes together with the observed [approximately]0.1 ppbV per year increase in tropospheric chlorine. The dominant contribution to column ozone trends occurs in the lower stratosphere where significant negative trends are present at latitudes >20[degrees] in both hemispheres. The observed latitude dependence is qualitatively consistent with model predictions that include the effects of heterogeneous chemical ozone losses on lower stratospheric aerosols.

• OSTI ID: 5035774
• Journal Information: Geophysical Research Letters (American Geophysical Union); (United States), Vol. 20:23; ISSN 0094-8276
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
OZONE
ECOLOGICAL CONCENTRATION
ALTITUDE
LATITUDE EFFECT
STRATOSPHERE
EARTH ATMOSPHERE
GEOGRAPHICAL VARIATIONS
VARIATIONS
540120* - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)