. Collected reprints, Essa Institute for Oceanography. Oceanography 32. Fig. 1—Aircraft photo of eddy in the Caribbean, north of St. John, Virgin Islands. Such eddies aid in fishing and in weather and dynamic current studies. Reprinted from OCEAN INDUSTRY Vol. 2, No. 5 OCEAN INDUSTRY DIGEST Fig. 2—Daylight ESSA-1 TV photo off Sensing ocean currents from space By Raymond M. Nelson Institute for Oceanography, ESSA As part of its mission to monitor the oceans and study the related physical environment, the Department of Commerce's ESSA (Environmental Science Service Administration)
. Collected reprints, Essa Institute for Oceanography. Oceanography 32. Fig. 1—Aircraft photo of eddy in the Caribbean, north of St. John, Virgin Islands. Such eddies aid in fishing and in weather and dynamic current studies. Reprinted from OCEAN INDUSTRY Vol. 2, No. 5 OCEAN INDUSTRY DIGEST Fig. 2—Daylight ESSA-1 TV photo off Sensing ocean currents from space By Raymond M. Nelson Institute for Oceanography, ESSA As part of its mission to monitor the oceans and study the related physical environment, the Department of Commerce's ESSA (Environmental Science Service Administration) is deeply involved in gathering basic data related to ocean circulation. Until recently, sources of such data were quite lim- ited, but new developments in electronics and advances in space technology are providing scientists with exciting new tools which hold great promise in this field. High Resolution Infrared (HRIR) Scan Imagery. An examination of the HRIR line scan imagery taken from the meteorological satellite Nimbus 2 shows that high thermal contrasts on water surfaces are discernible. Alli- son, Foshee and Warnecke of NASA and Goddard and Wilkerson of the Naval Oceanographic Office have col- laborated on the determination of water surface temper- atures from such ;' From the accompanying HRIR scan imagery and the ESSA-1 television photographs, it is readily apparent that surface boundaries of major currents can be detected and point temperature distribu- tions could have been measured between clouds. Time- sequence analyses of such quasi-synoptic coverage over large areas may reveal previously undisclosed surface circulation effects. EXAMPLES: Fig. 1 is an ESSA-television picture taken off the east coast of the on June 2, 1966 and Fig. 3 is a Nimbus 2 HRIR photograph exposed 11 hours later (at night). A comparison shows the front line appears to have moved farther east on the infrared pho- tograph, and some cloud patterns, imaged near the coast on th
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