Transport of Mt. Pinatubo aerosol by tropospheric synoptic-scale and stratospheric planetary-scale waves
| العنوان: | Transport of Mt. Pinatubo aerosol by tropospheric synoptic-scale and stratospheric planetary-scale waves |
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| المؤلفون: | H. L. Rogers, Roy G. Grainger, W. A. Norton, Alyn Lambert |
| المصدر: | Quarterly Journal of the Royal Meteorological Society. 124:193-209 |
| بيانات النشر: | Wiley, 1998. |
| سنة النشر: | 1998 |
| مصطلحات موضوعية: | Atmospheric Science, Contour advection, Baroclinity, Northern Hemisphere, Atmospheric sciences, Physics::Geophysics, Aerosol, Troposphere, Polar vortex, Synoptic scale meteorology, Climatology, Physics::Space Physics, Environmental science, Astrophysics::Earth and Planetary Astrophysics, Stratosphere, Astrophysics::Galaxy Astrophysics, Physics::Atmospheric and Oceanic Physics |
| الوصف: | The isentropic transport of stratospheric air from the tropics into northern hemisphere mid-latitudes is examined using Mt. Pinatubo aerosol observed by the Improved Stratospheric and Mesospheric Sounder (ISAMS). The technique of contour advection is used to produce high-resolution aerosol fields which are used to help diagnose transport processes. By sampling the high-resolution contour-advection fields at the satellite measurement points, we show that the small-scale information present in the contour-advection calculation is consistent with the ISAMS measurements. Results of this study indicate that transport from the tropics into mid-latitudes is strongly dependent on altitude. In the lowest regions of the stratosphere, the upward influence of the subtropical jet and the synoptic-scale waves that form on the storm tracks are important in transporting air from the tropics and in the distribution of aerosol in mid-latitudes. Synoptic-scale spirals form in the aerosol field on the 500 K isentrope at the end of storm tracks associated with LC1 baroclinic life-cycle behaviour. At altitudes near the 600 K isentrope, direct tropospheric effects diminish and intrusions of air from the tropics to mid-latitudes weaken. At altitudes approaching the middle stratosphere, planetary-wave activity becomes stronger and the associated displacements of the polar vortex to low latitudes produce transport from the tropics, particularly during mid-winter warming events. |
| تدمد: | 1477-870X 0035-9009 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e792f8b3369404b2c7bd0ff705905d25Test https://doi.org/10.1002/qj.49712454509Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....e792f8b3369404b2c7bd0ff705905d25 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1477870X 00359009 |
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