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Wind- versus Eddy-Forced Regional Sea Level Trends and Variability in the North Pacific Ocean
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chen, Shuiming Wu, Lixin Kida, Shinichiro |
| Copyright Year | 2015 |
| Abstract | AbstractRegional sea level trend and variability in the Pacific Ocean have often been considered to be induced by low-frequency surface wind changes. This study demonstrates that significant sea level trend and variability can also be generated by eddy momentum flux forcing due to time-varying instability of the background oceanic circulation. Compared to the broad gyre-scale wind-forced variability, the eddy-forced sea level changes tend to have subgyre scales and, in the North Pacific Ocean, they are largely confined to the Kuroshio Extension region (30°–40°N, 140°–175°E) and the Subtropical Countercurrent (STCC) region (18°–28°N, 130°–175°E). Using a two-layer primitive equation model driven by the ECMWF wind stress data and the eddy momentum fluxes specified by the AVISO sea surface height anomaly data, the relative importance of the wind- and eddy-forced regional sea level trends in the past two decades is quantified. It is found that the increasing (decreasing) trend south (north) of the Kuroshio Ex... |
| Starting Page | 1561 |
| Ending Page | 1577 |
| Page Count | 17 |
| File Format | PDF HTM / HTML |
| DOI | 10.1175/JCLI-D-14-00479.1 |
| Volume Number | 28 |
| Alternate Webpage(s) | http://www.soest.hawaii.edu/oceanography/bo/Qiu_etal_JC2015.pdf |
| Alternate Webpage(s) | https://doi.org/10.1175/JCLI-D-14-00479.1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
