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| Titel |
The Cape Tobin Jet |
| VerfasserIn |
H. Ólafsson, M. A. Shapiro, H. Ágústsson, J. E. Kristjánsson |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250029431
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| Zusammenfassung |
| In northerly flow, a strong jet close to Cape Tobin in E-Greenland is frequently simulated in numerical weather prediction models. To the extent that the late-summer absence of sea-ice permits, Quik-SCAT observations confirm the presence of this jet.
During the IPY/THORPEX and GREENEX campaigns in March 2008, observations were made of the Cape Tobin jet with a number of dropsondes. The core of the jet with maximum wind speed of about 45 m/s was located at a strong inversion at about 1 km above the sea ice. The inversion slopes and is at a lower level away from Greenland than closer to the coast. A part of the Tobin jet impinges on the more than 2 km high topography of E-Greenland and flows over it in spite of high static stability. The associated mixing leads to cooling of the layers between 1 and 2 km and the downstream flow at these levels may be characterized as “cold foehn”. |
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