Annual and Intra-annual Sea Level Variability in the Region of the Kuroshio Extension from TOPEX/POSEIDON and Geosat Altimetry
| Autor: | Stephen Howden, Liping Wang, Chester J. Koblinsky |
|---|---|
| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | Journal of Physical Oceanography. 28:692-711 |
| ISSN: | 1520-0485 0022-3670 |
| Popis: | Using 4.2 years of sea surface height data collected by the TOPEX/POSEIDON altimeter and 2.3 years of data collected by the Geosat altimeter, the authors study the annual, intra-annual, and linear-trend sea level height variability in the region of the Kuroshio Extension. Both the annual and intra-annual variabilities are separated spatially into large (≥2000 km), intermediate (∼1500 km), and short scales (∼800 km). The intermediate and short-scale annual and intra-annual sea level height fluctuations in both periods have large components with two-dimensional phase propagation. Close correspondence between the characteristic spatial structure of both the intermediate and short-scale annual and intra-annual sea level height fluctuations and major bottom topographic features suggests that bottom topography plays a critical role in the generation of those low-frequency variabilities. On the other hand, large-scale annual variability is primarily a standing oscillation, and bottom topography does not... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|