The Eddy Experiment: GNSS-R speculometry for directional sea-roughness retrieval from low altitude aircraft

被引：83

作者：

Germain, O

Ruffini, G

Soulat, F

Caparrini, M

Chapron, B

Silvestrin, P

机构：

[1] Starlab, Res Dept, E-08035 Barcelona, Spain

[2] IFREMER, Plouzane, France

[3] European Space Agcy, European Space Res & Technol Ctr, NL-2200 AG Noordwijk, Netherlands

来源：

GEOPHYSICAL RESEARCH LETTERS | 2004年 / 31卷 / 21期

关键词：

D O I：

10.1029/2004GL020991

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

We report the retrieval of sea surface directional mean square slope from Global Navigation Satellite System Reflections (GNSS-R) Delay-Doppler-Map (DDM) data collected during an experimental flight at 1 km altitude. We emphasize the utilization of the entire DDM to more precisely infer ocean roughness directional parameters, and argue that the DDM exhibits the impact of both roughness and scatterer velocity. Obtained estimates are analyzed and compared with Jason-1 measurements, ECMWF numerical weather model outputs and optical data.

引用

收藏

页码：L213071 / 4

页数：4

相关论文

共 19 条

[1] ROUGH SURFACE SCATTERING BASED ON SPECULAR POINT THEORY [J].

BARRICK, DE .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1968, AP16 (04) :449-+

[2] Mediterranean Balloon Experiment: ocean wind speed sensing from the stratosphere, using GPS reflections [J].

Cardellach, E ;

Ruffini, G ;

Pino, D ;

Rius, A ;

Komjathy, A ;

Garrison, JL .

REMOTE SENSING OF ENVIRONMENT, 2003, 88 (03) :351-362

[3] Satellite measurements reveal persistent small-scale features in ocean winds [J].

Chelton, DB ;

Schlax, MG ;

Freilich, MH ;

Milliff, RF .

SCIENCE, 2004, 303 (5660) :978-983

[4] A unified directional spectrum for long and short wind-driven waves [J].

Elfouhaily, T ;

Chapron, B ;

Katsaros, K ;

Vandemark, D .

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS, 1997, 102 (C7) :15781-15796

[5] Delay-Doppler analysis of bistatically reflected signals from the ocean surface: Theory and application [J].

Elfouhaily, T ;

Thompson, DR ;

Linstrom, L .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2002, 40 (03) :560-573

[6] Effect of sea roughness on bistatically scattered range coded signals from the Global Positioning System [J].

Garrison, JL ;

Katzberg, SJ ;

Hill, MI .

GEOPHYSICAL RESEARCH LETTERS, 1998, 25 (13) :2257-2260

[7] Wind speed measurement using forward scattered GPS signals [J].

Garrison, JL ;

Komjathy, A ;

Zavorotny, VU ;

Katzberg, SJ .

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2002, 40 (01) :50-65

[8]

GARRISON JL, 2003, 2003 WORKSH OC GNSS

[9] Investigation of C-band altimeter cross section dependence on wind speed and sea state [J].

Gourrion, J ;

Vandemark, D ;

Bailey, S ;

Chapron, B .

CANADIAN JOURNAL OF REMOTE SENSING, 2002, 28 (03) :484-489

[10]

Greger D, 2000, NEW ENGL REV-MIDDLEB, V21, P22