Abstract
Satellite-sensed advanced very high resolution radiometer (AVHRR) sea surface temperature (SST) data over eight winters (1996-2003) and shipboard measurement during winter 2002 were used to analyze the winter SST patterns of variability in the middle of Taiwan Strait. Empirical orthogonal function (EOF) analysis of the spatial and temporal variance for 81 nearly cloud-free quarter monthly images was performed. The time series of spatial mean SST was like a non-linear mode associated with the seasonal thermal variation, having an average value about 20°C. The EOF analysis shows that the variance of oceanic feature was more significant in space than in time. The first mode (85.7%) of the spatial variance shows a persistent front near the Chang-Yuen Ridge in the middle of Taiwan Strait, which separates warmer surface water (>22°C) to the southeast from the colder waters (<19°C) off Mainland China to the northwest. The maximum temperature and salinity gradient at Chang-Yuen Ridge were found about 0.11°C/km and 0.048 psu/km, respectively. The second and third spatial variance modes are extremely low energy about 3.13% and 1.92%, respectively. The EOF's signal and field observation revealed that the heating exchange, balance and its strength (i.e. coolness index) of cold water to warm water, were temporally shifted in winter. From these images, we also constructed an overall coolness index, which revealed the relative strength of Mainland China Coastal Current in relation to the interaction of the South China Sea Warm Current and Kuroshlo Counter Current.
| Original language | English |
|---|---|
| Title of host publication | 25th Anniversary IGARSS 2005 |
| Subtitle of host publication | IEEE International Geoscience and Remote Sensing Symposium |
| Pages | 2621-2626 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2005 Dec 1 |
| Event | 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 - Seoul, Korea, Republic of Duration: 2005 Jul 25 → 2005 Jul 29 |
Publication series
| Name | International Geoscience and Remote Sensing Symposium (IGARSS) |
|---|---|
| Volume | 4 |
Other
| Other | 2005 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2005 |
|---|---|
| Country | Korea, Republic of |
| City | Seoul |
| Period | 05-07-25 → 05-07-29 |
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All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Earth and Planetary Sciences(all)
Cite this
}
A satellite and field view of the winter SST variability in the Taiwan Strait. / Lee, Ming An; Chang, Yi; Lee, Kuo Tien; Chan, Jui Wen; Liu, Don Chung; Su, Wei Cheng.
25th Anniversary IGARSS 2005: IEEE International Geoscience and Remote Sensing Symposium. 2005. p. 2621-2626 1525524 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 4).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - A satellite and field view of the winter SST variability in the Taiwan Strait
AU - Lee, Ming An
AU - Chang, Yi
AU - Lee, Kuo Tien
AU - Chan, Jui Wen
AU - Liu, Don Chung
AU - Su, Wei Cheng
PY - 2005/12/1
Y1 - 2005/12/1
N2 - Satellite-sensed advanced very high resolution radiometer (AVHRR) sea surface temperature (SST) data over eight winters (1996-2003) and shipboard measurement during winter 2002 were used to analyze the winter SST patterns of variability in the middle of Taiwan Strait. Empirical orthogonal function (EOF) analysis of the spatial and temporal variance for 81 nearly cloud-free quarter monthly images was performed. The time series of spatial mean SST was like a non-linear mode associated with the seasonal thermal variation, having an average value about 20°C. The EOF analysis shows that the variance of oceanic feature was more significant in space than in time. The first mode (85.7%) of the spatial variance shows a persistent front near the Chang-Yuen Ridge in the middle of Taiwan Strait, which separates warmer surface water (>22°C) to the southeast from the colder waters (<19°C) off Mainland China to the northwest. The maximum temperature and salinity gradient at Chang-Yuen Ridge were found about 0.11°C/km and 0.048 psu/km, respectively. The second and third spatial variance modes are extremely low energy about 3.13% and 1.92%, respectively. The EOF's signal and field observation revealed that the heating exchange, balance and its strength (i.e. coolness index) of cold water to warm water, were temporally shifted in winter. From these images, we also constructed an overall coolness index, which revealed the relative strength of Mainland China Coastal Current in relation to the interaction of the South China Sea Warm Current and Kuroshlo Counter Current.
AB - Satellite-sensed advanced very high resolution radiometer (AVHRR) sea surface temperature (SST) data over eight winters (1996-2003) and shipboard measurement during winter 2002 were used to analyze the winter SST patterns of variability in the middle of Taiwan Strait. Empirical orthogonal function (EOF) analysis of the spatial and temporal variance for 81 nearly cloud-free quarter monthly images was performed. The time series of spatial mean SST was like a non-linear mode associated with the seasonal thermal variation, having an average value about 20°C. The EOF analysis shows that the variance of oceanic feature was more significant in space than in time. The first mode (85.7%) of the spatial variance shows a persistent front near the Chang-Yuen Ridge in the middle of Taiwan Strait, which separates warmer surface water (>22°C) to the southeast from the colder waters (<19°C) off Mainland China to the northwest. The maximum temperature and salinity gradient at Chang-Yuen Ridge were found about 0.11°C/km and 0.048 psu/km, respectively. The second and third spatial variance modes are extremely low energy about 3.13% and 1.92%, respectively. The EOF's signal and field observation revealed that the heating exchange, balance and its strength (i.e. coolness index) of cold water to warm water, were temporally shifted in winter. From these images, we also constructed an overall coolness index, which revealed the relative strength of Mainland China Coastal Current in relation to the interaction of the South China Sea Warm Current and Kuroshlo Counter Current.
UR - http://www.scopus.com/inward/record.url?scp=33745712858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33745712858&partnerID=8YFLogxK
U2 - 10.1109/IGARSS.2005.1525524
DO - 10.1109/IGARSS.2005.1525524
M3 - Conference contribution
AN - SCOPUS:33745712858
SN - 0780390504
SN - 9780780390508
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 2621
EP - 2626
BT - 25th Anniversary IGARSS 2005
ER -