NDLI: ERS-1/2 SAR detection of natural film on the ocean surface

Content Provider	IEEE Xplore Digital Library
Author	Espedal, H.A. Johannessen, O.M. Johannessen, J.A. Dano, E. Lyzenga, D. Knulst, J.C.
Copyright Year	1997
Description	Author affiliation: Nansen Environ. & Remote Sensing Center, Bergen, Norway (Espedal, H.A.)
Abstract	Ocean mesoscale phenomena such as eddies and current convergence zones can often be seen in SAR images due to characteristic patterns caused by natural film induced damping of the waves. Such films have also been found to exert a significant effect on air-sea gas exchange, which may be important for the global scale climate system. Satellite synthetic aperture radar (SAR) may prove very useful to quantify the extent of natural film. To investigate the composition of these films and their effect on radar return, samples of the sea surface were taken simultaneously with ERS-1/2 SAR coverage of a fjord (the Korsfjord experiment), and later in coastal ocean areas (COASTWATCH'95). During COASTWATCH'95, simultaneous observations were made with a shipmounted C-band dual-polarized Doppler radar, and surface drifters were deployed to investigate the surface current variations in vicinity of the slicks. The dependence of the existence of slicks on wind speed is also investigated, and an estimate of natural film distribution during the experiment period given.
Starting Page	1168
Ending Page	1170
File Size	372117
Page Count	3
File Format	PDF
ISBN	0780338367
DOI	10.1109/IGARSS.1997.606386
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-08-03
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oceans Sea surface Synthetic aperture radar Doppler radar Convergence Damping Satellites Spaceborne radar Sea measurements Wind speed
Content Type	Text
Resource Type	Article

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