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- Title
Quantifying Temporal Variance in High-Latitude Air–Sea Interactions.
- Authors
Sathiyamoorthy, S.; Moore, G. W. K.
- Abstract
A novel way of quantifying the variance of a time series is presented. The method first involves filtering the time series using filters with different temporal characteristics, and then using a moving window to calculate the variances in each filtered time series. The use of a moving window allows the original temporal resolution to be retained, as well as allowing one to study how the variance changes with time. Air-sea interaction time series from Ocean Weather Station (OWS) Bravo in the Labrador Sea are analyzed as an example. High-pass, bandpass, and low-pass filters are used to isolate the diurnal signal, the storm/cyclone signature, and the weather regime transition signal, respectively. The variance during the winter months is found to be strongly influenced by weather systems in the bandpass and the low-pass frequency range. The variance during the summer months, on the other hand, is dominated by the shortwave radiation in the high-pass frequency range.
- Subjects
LABRADOR Sea; OCEAN-atmosphere interaction
- Publication
Journal of Climate, 2003, Vol 16, Issue 4, p746
- ISSN
0894-8755
- Publication type
Article
- DOI
10.1175/1520-0442(2003)016<0746:QTVIHL>2.0.CO;2