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Hydrologic interpretations based on infrared imagery of Long Island, New YorkSix remote-sensing flights over Long Island's north and south shores were made during the period July 13, 1967, to February 25, 1970. Infrared imagery in the 8- to 14-micrometer range was obtained; results varied from poor to excellent in quality. The ability of the RS 7 and Reconofax 4 imagers to discern thermal contrasts of as little as 1 to 2 C (Celsius) permitted identification of areas of heavy ground-water discharge. These areas were concentrated primarily along the eroded headlands of the north shore and in the lower reaches of watercourses draining into Great South Bay. Only a few highly localized examples of direct ground-water discharge into the embayments along Long Island's south shore were detected in the imagery. Thermal loading emanating from a powerplant near Oceanside is shown to be quickly dissipated in Middle Bay. Optimal time for the collection of infrared imagery for hydrologic studies on Long Island is in summer and in winter, when surface-water thermal differences are relatively large.
Document ID
19720018640
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Pluhowski, E. J. (Geological Survey Washington, DC, United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1972
Subject Category
Geophysics
Report/Patent Number
USGS-WSP-2009-B
NASA-CR-127032
LC-75-190389
Accession Number
72N26290
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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