 |
| Titel |
Non-tidal aliasing in seasonal sea-level variability and annual Rossby waves as observed by satellite altimetry |
| VerfasserIn |
G. Chen, R. Ezraty |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 15, no. 11 ; Nr. 15, no. 11, S.1478-1488 |
| Datensatznummer |
250013011
|
| Publikation (Nr.) |
 copernicus.org/angeo-15-1478-1997.pdf |
|
|
|
|
|
| Zusammenfassung |
| It is becoming well known that aliasing
associated with ocean tides could be a major source of systematic error in
altimeter sea-level measurements, due to asynoptic sampling and imperfect tide
modelling. However, it has been shown that signals of non-tidal origin may also
contribute significantly to the observed aliasing. In this paper, numerical
simulations are performed to demonstrate the full aliasing potential associated
with altimeter observations of seasonal sea-level variability and annual Rossby
waves. Our results indicate that ignorance of non-tidal aliasing may lead to the
possibility of underestimating the total aliasing and misinterpreting or
overlooking existing geophysical phenomena. Therefore, it is argued that an
entire aliasing picture should be kept in mind when satellite altimeter data are
analysed. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|