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| Titel |
Enhanced internal gravity wave activity and breaking over the northeastern Pacific–eastern Asian region |
| VerfasserIn |
P. Šácha, A. Kuchar, C. Jacobi, P. Pisoft |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 15, no. 22 ; Nr. 15, no. 22 (2015-11-26), S.13097-13112 |
| Datensatznummer |
250120186
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| Publikation (Nr.) |
 copernicus.org/acp-15-13097-2015.pdf |
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| Zusammenfassung |
We have found a stratospheric area of anomalously low annual cycle amplitude
and specific dynamics in the stratosphere over the northeastern Pacific–eastern Asia coastal region. Using GPS radio occultation density profiles
from the Formosat Satellite
Mission 3/Constellation Observing System for Meteorology, Ionosphere, and
Climate (FORMOSAT-3/COSMIC), we have discovered an internal gravity wave (IGW) activity
and breaking hotspot in this region. Conditions supporting orographic wave
sourcing and propagation were found. Other possible sources of wave activity
in this region are listed.
The reasons why this particular IGW activity hotspot was not discovered
before as well as why the specific dynamics of this region have not been pointed out
are discussed together with the weaknesses of using the mean potential energy as a
wave activity proxy. Possible consequences of the specific dynamics in this
region on the middle atmospheric dynamics and transport are outlined. |
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