Synergy ENVISAT ASAR, ERS-2 SAR, RADARSAT SAR, Landsat TM and MODIS images to research propagation features of internal solitary waves in northern of South China Sea
Junmin Meng(1) , Jie Zhang(1) , and Changying Wang(1)
First Institute of Oceanography,
No.6 Xianxialing Road,
Large internal solitary waves with long crest are often observed in the northern of South China Sea by using remote sensing imagery. The wide swath remote sensing images such as RADARSAT ScanSAR, ENVISAT ASAR WSM and MODIS can cover large area and observe several internal solitary wave packets in one scene. And these images have higher temporal resolution. So we can combine several images to monitoring internal waves evolution. In this paper internal waves propagation features, as propagation speed, propagation direction, solitary waves' fission, are researched by synergy ENVISAT, RADARSAT, MODIS, TM images. The Kortweg-deVries (KdV) type equation has been used to study the evolution of internal wave packets and compare with remote sensing results. The temperature chains, CTD and ADCP data in South China Sea are analyzed to revise the conclusion.