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Inter-annual and decadal changes in tropospheric and stratospheric ozone
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Chandra, S. Ziemke R. |
| Copyright Year | 2011 |
| Description | Ozone data beginning October 2004 from the Aura Ozone Monitoring Instrument (OMI) and Aura Microwave Limb Sounder (MLS) are used to evaluate the accuracy of the Cloud slicing technique in effort to develop long data records of tropospheric and stratospheric ozone and studying their long-term changes. Using this technique, we have produced a 32-year (1979-2010) long record of tropospheric and stratospheric ozone from the combined Total Ozone Mapping Spectrometer (Toms) and OMI. The analyses of these time series suggest that the quasi-biennial oscillation (QBO) is the dominant source of inter-annual changes of 30-40 Dobson Units (DU). Tropospheric ozone also indicates a QBO signal in the peak to peak changes varying from 2 to 7 DU. Decadal changes in global stratospheric ozone indicate a turnaround in ozone loss around mid 1990's with most of these changes occurring in the Northern Hemisphere from the subtropics to high latitudes. The trend results are generally consistent with the prediction of chemistry climate models which include the reduction of ozone destroying substances beginning in the late 1980's mandated by the Montreal Protocol. |
| File Size | 2923003 |
| Page Count | 26 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110023458 |
| Archival Resource Key | ark:/13960/t6d26x81c |
| Language | English |
| Publisher Date | 2011-09-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics International Law Time Series Analysis Ozone Depletion Troposphere Microwave Sounding Stratosphere Ozone Periodic Variations Quasi-biennial Oscillation Atmospheric Composition Total Ozone Mapping Spectrometer Mathematical Models Polar Regions Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
