1 / 27

Analysis of Tide Gauge and AVISO Mean Sea Surface Height Data from East Asia (1980-2009)

This study examines mean sea surface height (SSH) data derived from tide gauges and AVISO across Keelung, Ishigaki, Gangfeng, Suao, Lanyu, and Dawu over significant periods from 1969 to 2009. Black dots indicate tide gauge locations, while blue contours represent isobaths. It includes analysis of wind stress, curl, correlation coefficients, and regression models to compare tide gauge and AVISO data, highlighting the influence of the winter monsoon and variations related to positive and negative PDO phases.

norris
Télécharger la présentation

Analysis of Tide Gauge and AVISO Mean Sea Surface Height Data from East Asia (1980-2009)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Eda 20100915 Tide Gauge & AVISO

  2. Mean SSH from Rio et al.2009 Black dots are the locations of the tide gauge stations. Blue contours are the isobaths. Time period of data Keelung: 1980-2009 Ishigaki: 1969-2008 Gangfeng: 1997-2007 Suao: 1999-2005 Lanyu:1992-2009 Dawu:2004-2009

  3. outline • EOF (AVISO SSH, ECMWF wind stress, curl) • Mean wind stress and curl • Correlation Coef. , regression and time series of: North Taiwan (tide gauge & AVISO) South Taiwan East Luzon • AVISO SSHA Latitude-Time plot (eddy propagation)

  4. EOF AVISO SSH: monthly

  5. EOF AVISO SSH: 360d running mean mode1: 67% mode2: 7.3% mode3: 3.9 %

  6. Mean wind stress (Pa) and curl (Pa/m) 1980~2008 Wind filed is dominated by winter monsoon

  7. EOF ECMWF wind stress curl: 720d running mean

  8. EOF ECMWF wind stress: 720d running mean

  9. Time series of SSHA Tide gauge (black solid) AVISO (red dash)

  10. Comparison: tide gauge and AVISO

  11. Time series of SSHA AVISO: south Taiwan

  12. Time series of SSHA AVISO: east Luzon

  13. Correlation and regression of AVISO SSHA & Tide Gauge North Taiwan

  14. Correlation and regression of AVISO SSHA North Taiwan

  15. Correlation and regression of AVISO SSHA South Taiwan

  16. Correlation and regression of AVISO SSHA East Luzon

  17. 7 days

  18. monthly

  19. Comparison: tide gauge and AVISO

  20. SST (color), SLP (contours) and wind stress (arrows) anomalies during +ve and –ve PDO’s +ve -ve 1990 Comparison: tide gauge and AVISO http://jisao.washington.edu/pdo/

  21. http://www.o3d.org/npgo/

More Related