Observations and modelling of the response of along-track SAR interferometry to mesoscale ocean features

被引：0

作者：

Anderson, C ^{[1
]}

Macklin, T ^{[1
]}

Wolf, J ^{[1
]}

Gommenginger, C ^{[1
]}

Srokosz, M ^{[1
]}

机构：

[1] BAE SYST Adv Technol Ctr, Signal & Image Proc Dept, Chelmsford CM2 8HN, Essex, England

来源：

IGARSS 2003: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS I - VII, PROCEEDINGS: LEARNING FROM EARTH'S SHAPES AND SIZES | 2003年

关键词：

ocean currents; along-track interferometry; synthetic-aperture radar (SAR); ocean circulation models; third-generation wave models (WAM);

D O I：

暂无

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Forward modelling of along-track interferometric (ATI) signatures of ocean areas is discussed, using surface wave spectra from a third-generation wave model (WAM), coupled to a model of the current field. Results are presented for two sites where ATI data were obtained from the NASA-JPL airborne synthetic-aperture radar (AIRSAR). Our forward modelling reproduces some of the observed ATI signatures associated with the current fields. However, discrepancies occur for both sites: off Hawaii, where orographic effects are not included in our modelling, and in the Kuroshio off SW Japan, where our modelling appears to miss structure on scales smaller than about 50 km. The model accuracy is also limited by the present understanding of the effect of hydrodynamic processes (wave-wave interactions) on the observed ATI signatures. Implications for future ATI observations from space are outlined.

引用

页码：1927 / 1929

页数：3

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