Interpretation of convection cell signatures in radar images of the Greenland Sea

被引：0

作者：

Romeiser, R ^{[1
]}

Ufermann, S ^{[1
]}

Rubino, A ^{[1
]}

Androssov, A ^{[1
]}

Kern, S ^{[1
]}

Mitnik, L ^{[1
]}

机构：

[1] Univ Hamburg, Inst Oceanog, D-22529 Hamburg, Germany

来源：

IGARSS 2002: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM AND 24TH CANADIAN SYMPOSIUM ON REMOTE SENSING, VOLS I-VI, PROCEEDINGS: REMOTE SENSING: INTEGRATING OUR VIEW OF THE PLANET | 2002年

关键词：

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

We present a comprehensive analysis of a convection cell pattern in two SAR images of a site in the Greenland Sea from the satellites ERS-2 and RADARSAT. It is not obvious whether the observed radar signatures can be attributed to oceanic or atmospheric convection phenomena. We show by numerical simulations that they are, on the one hand, not consistent with the theory of oceanic convection features and their radar imaging mechanism, while, on the other hand, they could very well be caused by atmospheric convection cells. The conclusion that the observed features must be atmospheric convection cells is supported by in-situ data and an AVHRR image of the scenario. We discuss the significance of our findings in view of the general problem of discriminating between radar signatures of oceanic and atmospheric phenomena.

引用

页码：943 / 945

页数：3

共 6 条

[1] Modeled radar surface signature of deep ocean convection
Fischer, KW
Legg, S
Munk, WH
Shuchman, RA
Garwood, RW
Palshook, JP
[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1999, 37 (04): : 2050 - 2067
[2] Mahadevan A, 1996, J PHYS OCEANOGR, V26, P1881, DOI 10.1175/1520-0485(1996)026<1881:ANMOMP>2.0.CO
[3] 2
[4] MITNIK LM, 1992, MER, V30, P287
[5] Numerical study on signatures of atmospheric convective cells in radar images of the ocean
Ufermann, S
Romeiser, R
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1999, 104 (C11) : 25707 - 25719
[6] A new interpretation of multifrequency/multipolarization radar signatures of the Gulf Stream front
Ufermann, S
Romeiser, R
[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1999, 104 (C11) : 25697 - 25705

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