Seasat detection of waves, currents and inlet discharge

Autor:	D. E. Lichy, R. C. Beal, M. G. Mattie
Rok vydání:	1980
Předmět:	Synthetic aperture radar Ground truth geography geography.geographical_feature_category Meteorology Ocean current Inlet Gulf Stream Radar imaging Wind wave General Earth and Planetary Sciences Outflow Geology Remote sensing
Zdroj:	International Journal of Remote Sensing. 1:377-398
ISSN:	1366-5901 0143-1161
DOI:	10.1080/01431168008948249
Popis:	A new era of remote sensing for coastal and oceanographic monitoring was born on June 26, 1978 with the launch of Seasat. Duck-X was a 2 month experiment conducted during August to October 1978 off the east coast of the U.S.A. for the validation of the Seasat synthetic aperture radar (SAR). During this field experiment, various oceanographic phenomena were monitored. Ground truth observations of these phenomena have been correlated with Seasat SAR imagery. The ground truth sensors included airborne photographic and radar imagery, meteorological satellite imagery, land based radars, and conventional wave gauges. The direction and length of the principal ocean wave trains are compared for the periods of Seasat overflight of the Duck-X area. During these overflights significant wave heights were 1.5 m and less and the maximum wave period was 15 sec. The current correlations concentrate on the western boundary of the Gulf Stream and its associated eddy structure. Inlet outflow is shown for inlets on the east coast of the U.S.A. This ground truth study has indicated that the SAR imagery contains an unanticipated abundance of information on a variety of oceanographic and coastal phenomena.
Databáze:	OpenAIRE
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