Loading...
Please wait, while we are loading the content...
Similar Documents
The distribution of odd nitrogen in the lower stratosphere and possible perturbations caused by stratospheric air transport
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Isaksen, I. S. A. Hesstvedt, E. |
| Copyright Year | 1973 |
| Description | In the lower stratosphere a significant production of odd nitrogen results from the reaction N2O + O(D-1) yields 2NO. Since the transport is relatively slow, odd nitrogen builds up with a maximum mixing ratio of 2 x 10 to the minus 8th power at 30 Km. Profiles of odd nitrogen, for different latitudes, winter and summer, are computed from one-dimensional transport models. Variations with latitude are small. Horizontal transport is therefore not believed to alter our results significantly. In order to evaluate the effect of odd nitrogen upon the ozone layer, NO(x) profiles are calculated. OH is here a key component, since it converts NO2 to HNO3. In the region where ozone is determined by chemistry rather than by transport (above 25 km), NO2 is found to be relatively abundant. The effect of stratospheric transport on the NO(x) distribution is shown to depend critically upon the height of emission. The effect increases by a factor of 5 or more for a change of flight level from 18 km to 23 km. This strong dependence should be duely considered when future stratospheric transport is discussed. |
| File Size | 941292 |
| Page Count | 28 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730021604 |
| Archival Resource Key | ark:/13960/t16m8129t |
| Language | English |
| Publisher Date | 1973-08-01 |
| Access Restriction | Open |
| Subject Keyword | Geophysics Atmospheric Composition Atmospheric Diffusion Atmospheric Models Annual Variations Nitrogen Compounds Stratosphere Ozone Air Pollution Perturbation Ozonosphere Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
