A comparison of ship- and scatterometer-derived wind speed data in open ocean and coastal areas
A comparison of ship- and scatterometer-derived wind speed data in open ocean and coastal areas
Quality controlled wind speed observations from merchant ships have been compared with ERS-1 scatterometer data. The ship and satellite wind speed pairs were well correlated at 120 km separation in the open ocean, reducing to 40 km in the North Sea. The maximum allowed separation of ship and scatterometer wind speed pairs had to be further reduced to 20 km in the North Sea to avoid matching of coastal ship wind speed data with scatterometer data from more exposed regions. Spurious biases in the comparisons were caused by the error variability of the scatterometer data (0.5 m s-1) being significantly less than that for the ships (2.0 m s-1). The unbiased regression was: U10n(ship)=1.025 U10n(satellite)+0.255 No significant enhancement of the scatterometer wind speeds occurred in the coastal region
scatterometer, wind speed, ocean, ERS-1, satellite, in situ, ship, Beaufort Scale, anemometer
3361-3381
Kent, E.C.
ea23f6f0-ccf6-4702-a5c9-184e9c5d4427
Taylor, P.K.
3ef27388-c14e-4f4b-85fc-97bb17d089d2
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
1998
Kent, E.C.
ea23f6f0-ccf6-4702-a5c9-184e9c5d4427
Taylor, P.K.
3ef27388-c14e-4f4b-85fc-97bb17d089d2
Challenor, P.G.
a7e71e56-8391-442c-b140-6e4b90c33547
Kent, E.C., Taylor, P.K. and Challenor, P.G.
(1998)
A comparison of ship- and scatterometer-derived wind speed data in open ocean and coastal areas.
International Journal of Remote Sensing, 19 (17), .
(doi:10.1080/014311698214046).
Abstract
Quality controlled wind speed observations from merchant ships have been compared with ERS-1 scatterometer data. The ship and satellite wind speed pairs were well correlated at 120 km separation in the open ocean, reducing to 40 km in the North Sea. The maximum allowed separation of ship and scatterometer wind speed pairs had to be further reduced to 20 km in the North Sea to avoid matching of coastal ship wind speed data with scatterometer data from more exposed regions. Spurious biases in the comparisons were caused by the error variability of the scatterometer data (0.5 m s-1) being significantly less than that for the ships (2.0 m s-1). The unbiased regression was: U10n(ship)=1.025 U10n(satellite)+0.255 No significant enhancement of the scatterometer wind speeds occurred in the coastal region
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Published date: 1998
Keywords:
scatterometer, wind speed, ocean, ERS-1, satellite, in situ, ship, Beaufort Scale, anemometer
Identifiers
Local EPrints ID: 55573
URI: http://eprints.soton.ac.uk/id/eprint/55573
ISSN: 0143-1161
PURE UUID: dbf27c81-7722-4361-beb3-5712cc5528e5
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Date deposited: 05 Aug 2008
Last modified: 15 Mar 2024 10:56
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Contributors
Author:
E.C. Kent
Author:
P.K. Taylor
Author:
P.G. Challenor
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