Wave flow simulations over Arctic leads
2005 (English)In: Boundary-layer Meteorology, ISSN 0006-8314, Vol. 117, no 2, 259-273 p.Article in journal (Refereed) Published
We investigate the flow over Arctic leads using a mesoscale numerical model, typical of both summer and winter, under idealised conditions. We find that Arctic leads may be the source of standing atmospheric internal gravity waves during both seasons. The summertime wave may be compared with the wave generated by a small ridge, though with the phase reversed. The mechanism for exciting the wave is found to be the internal boundary layer developing due to horizontal variations in surface temperature and roughness length. During the more exploratory wintertime simulations, with substantial temperature difference between the lead and the ice surface, we find that secondary circulations and intermittent wave-breaking may occur. The effects of the lead appear far downstream.
Place, publisher, year, edition, pages
2005. Vol. 117, no 2, 259-273 p.
Arctic, Gravity waves, Ice leads, Intermittent and elevated turbulence, Wave-breaking
Meteorology and Atmospheric Sciences
Research subject Meteorology
IdentifiersURN: urn:nbn:se:su:diva-24078DOI: 10.1007/s10546-004-1427-2OAI: oai:DiVA.org:su-24078DiVA: diva2:196695
Part of urn:nbn:se:su:diva-65852007-02-012007-02-012010-01-22Bibliographically approved