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Energetics of wave propagation leading to frost events in South America: extratropical latitudes.
- Source :
- Atmospheric Science Letters (John Wiley & Sons, Inc. ); Aug2017, Vol. 18 Issue 8, p342-348, 7p
- Publication Year :
- 2017
-
Abstract
- The dynamics of wave propagation and energy associated with frosts in extratropical versus tropical South American latitudes is studied. A double wave train propagates through the southern hemisphere following the polar and subtropical jets. If, in the previous day, both trains coincide in phase over the southeast Pacific (southwest Atlantic) Oceans, it will contribute to generate generalized frosts (strong frosts) at extratropical (tropical) latitudes, not affecting tropical (extratropical) latitudes given the wave train zonal propagation. The vertically averaged eddy kinetic energy composites show three maxima associated with those trains over the South Pacific Ocean and South American region. [ABSTRACT FROM AUTHOR]
- Subjects :
- THEORY of wave motion
CYCLONES
KINETIC energy
FROST
Subjects
Details
- Language :
- English
- ISSN :
- 1530261X
- Volume :
- 18
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Atmospheric Science Letters (John Wiley & Sons, Inc. )
- Publication Type :
- Academic Journal
- Accession number :
- 124834263
- Full Text :
- https://doi.org/10.1002/asl.762