Feasibility study on estimating sea surface currents from single (Envisat ASAR) and dual (TanDEM-X) SAR system

Author

Ki-mook Kang ; Duk-jin Kim

Author_Institution

Sch. of Earth & Environ. Sci., Seoul Nat. Univ., Seoul, South Korea

fYear

2013

fDate

21-26 July 2013

Firstpage

1274

Lastpage

1277

Abstract

Sea surface current plays an important role in understanding physical oceanography and can provide critical information for preventing natural disasters such as oil spill and ship distress. In this study, two techniques using space-borne Synthetic Aperture Radar (SAR) systems were processed to evaluate their feasibility to extract sea surface current velocities. The first technique employs the Doppler shift algorithm from a single SAR system which is generated when moving targets are imaged in East Sea of Korean Peninsula. The second technique utilizes Along-Track Interferometry (ATI) from dual SAR system to estimate sea surface current velocity in Strait of Korea. Envisat ASAR and TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) data were used in each technique, respectively.

Keywords

ocean waves; remote sensing by radar; synthetic aperture radar; ENVISAT ASAR system; Envisat ASAR data; Korean Peninsula; TANDEM-X system; TanDEM-X data; dual SAR system; natural disaster prevention; oil spill; physical oceanography; sea surface currents; ship distress; single SAR system; synthetic aperture radar; Doppler shift; Interferometry; Sea measurements; Sea surface; Surface waves; Synthetic aperture radar; Along-track Interferometry SAR; Doppler shift; Envisat ASAR; Sea surface currents; TanDEM-X;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723013

Filename

6723013