碩士 / 中央警察大學 / 水上警察研究所 / 99 / This thesis investigates the spatial and seasonal variability of flow
field east of Taiwan using the trajectory of drifters deployed during April
2008 to July 2009, the concurrent QSCAT-NCEP Blended wind data and
topography. Since the Kuroshio dominates in this region, the current filed
is composed of the wind-driven part and the net flow provided that tidal
flow was negligible. As a result, we derived the wind-driven flow
according to the Ekman theory and compare with the net flow. The
analyzed results from drifters’ track showed that most drifters flowed
north- and northeast-ward following the main stream of Kuroshio along the
Taiwan east channel. In addition, the drifters accelerated significantly while
they were on the Kuroshio main path. If they diverted out of the main path
and/or into the Kuroshio branch, they decelerated. Furthermore, the
correlation scale is essential for planning search-and-rescue pattern in
which the correlation scales are larger during summer months than those in
fall, and the correlation scales of wind-driven current varied closely with
the raw flow field.
| Identifer | oai:union.ndltd.org:TW/099CPU05670007 |
| Date | January 2011 |
| Creators | Yang Chih-Wei, 楊智惟 |
| Contributors | 陳先文 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 66 |
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