Method for ocean surface currents measurement by SAR

Bin Fu; Weigen Huang; Kaiguo Fan; Xilin Gan; Huaguo Zhang; Aiqin Shi

doi:10.1117/12.804897

3 December 2008 Method for ocean surface currents measurement by SAR

Bin Fu, Weigen Huang, Kaiguo Fan, Xilin Gan, Huaguo Zhang, Aiqin Shi

Proceedings Volume 7148, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions II; 714809 (2008) https://doi.org/10.1117/12.804897
Event: SPIE Asia-Pacific Remote Sensing, 2008, Noumea, New Caledonia

Abstract

A new method for mapping shallow water topography surface currents from SAR image is introduced based on the shallow water topography SAR imaging mechanism. M4S (presented by Romeiser R.) was used to forward simulate radar signatures of the oceanic features over the ocean surface. The first guessed surface currents can be estimated from the normalized radar cross section (NRCS) of the shallow water topography profile in the SAR image according to the Apers-Hennings linear theory, the NRCS induced by the varying shallow water topography surface currents could be simulated by the forward simulating model. The wind speed and shallow water topography surface currents gradients are modified using the iterative method until the simulated radar signals close to the NRCS calculated from SAR image. By this method, the wind speed and the surface currents can be retrieved finally. This method is tested on an ERS-2 SAR image in the Taiwan Shoal. Results show that the simulated shallow water topography radar signal is consistent with the NRCS extracted from SAR image, and their correlation coefficient is up to 90%, which means that this method is convergent and applicable.

Citation Download Citation

Bin Fu, Weigen Huang, Kaiguo Fan, Xilin Gan, Huaguo Zhang, and Aiqin Shi "Method for ocean surface currents measurement by SAR", Proc. SPIE 7148, Remote Sensing and Modeling of the Atmosphere, Oceans, and Interactions II, 714809 (3 December 2008); https://doi.org/10.1117/12.804897

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Synthetic aperture radar

Device simulation

Radar

Modulation

Data modeling

Backscatter

Remote sensing

Show All Keywords

Keywords/Phrases

Search In:

Publication Years