Observation and interpretation of wave clouds over Macquarie Island
Abstract Images obtained from two NOAA/AVHRR overpasses of Macquarie Island in October 1985 show pronounced cloud bands associated with trapped lee waves. One image reveals striking evidence of an abrupt change in the propagating wave mode. the structure and evolution of the waves is interpreted usi...
| Published in: | Quarterly Journal of the Royal Meteorological Society |
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| Main Authors: | , , , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1990
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1002/qj.49711649310 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.49711649310 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.49711649310 |
| Summary: | Abstract Images obtained from two NOAA/AVHRR overpasses of Macquarie Island in October 1985 show pronounced cloud bands associated with trapped lee waves. One image reveals striking evidence of an abrupt change in the propagating wave mode. the structure and evolution of the waves is interpreted using a linear wave‐model coupled with radiosonde data obtained from the island. the model successfully forecasts the mode change, and accurately predicts the associated wavelengths. an interpretation of the difference between the amplitudes of the two modes is also provided. Infrared channel measurement of the temperature of the cloud in the wave‐crests yields a useful constraint on the cloud height. |
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