Regional sea level change in Northwest Pacific : process, characteristic and prediction

Auteur(s) et Affiliation(s)

LUO, W.

Key lab. of Virtual Geographic Environment, Ministry of Education, Normal Univ., Nanjing, Chine

YUAN, L.

Key lab. of Virtual Geographic Environment, Ministry of Education, Normal Univ., Nanjing, Chine

YU, Z.

Key lab. of Virtual Geographic Environment, Ministry of Education, Normal Univ., Nanjing, Chine

YI, L.

Key lab. of Virtual Geographic Environment, Ministry of Education, Normal Univ., Nanjing, Chine

XIE, Z.

Key lab. of Virtual Geographic Environment, Ministry of Education, Normal Univ., Nanjing, Chine

Description :
Based on 22 sparse-distributed tide gauge records in the Northwest Pacific Ocean marginal sea, the process, characteristic and prediction of regional sea level change are discussed by the integration of 6 mathematic methods. The AA. apply first the regularized EM algorithm (RegEM) and the Multi-taper Spectral Method (MTM) to investigate the fluctuation characteristics, processes and their spatial heterogeneity from temporal and frequency pespectives. They further use ordered cluster methods to get 5 sub-regions. They use Mean Generation Function (MGF) to predict sea-level change of each station until 2030. Finally, the Principal Component Analysis (PCA) is employed to obtain regional-scale sea level change trends, sea level rise rates of these 5 sub-regions from 2001 to 2030. Chinese coast along the Yellow Sea and East China have the largest rise rates. The rate changes near the coast of Japan are a little smaller. Sea level changes along northwest of South China Sea and north of the Yellow Sea and Bohai Sea are much smaller.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2011, vol. 21, n°. 3, p. 387-400, nombre de pages : 14, Références bibliographiques : 40 ref.

Date :
2011

Editeur :
Pays édition : Chine

Langue :
Anglais