monthly isotherm charts were drawn from 

 these average data, assuming the average tem- 

 perature to be located at the midpoint of each 

 10-minute square. 



ACKNOWLEDGEMENT 



The interest and full cooperation of the U.S. 

 Coast Guard made the surveys possible. In par- 

 ticular, the cooperation of the commanding 

 officers, flight operations staffs, and flight 

 crews of the Coast Guard air stations at San 

 Diego, San Francisco, and Port Angeles made 

 a major contribution to the success of the pro- 

 gram. 



Measurements of sea surface temperature 

 were made (while the ART aircraft was over- 

 head) from the U.S. Coast Guard Lightships 

 SAN FRANCISCO, COLUMBIA RIVER, and 

 UMATILLA, and the NURDC Oceanographic 

 Tower, under the supervision of Dr. E. C. 

 LaFond. 



Financial support given the ART program 

 in 1967 and 1968 by the U.S. Navy Fleet Num- 

 erical Weather Central, Monterey, Calif., en- 

 abled the program to continue without inter- 

 ruption. 



Helpful suggestions on the method of analy- 

 sis of monthly isotherm charts were given by 

 Dr. Sidney R. Frank, consulting meteorologist, 

 Santa Barbara, Calif. 



REFERENCES 



Barnes, Robert C. (1964). Infrared radiation thermo- 

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 Circular 202: 60-68. 



Clark, John R., and John L. Frank (1963). Infrared 

 measurement of sea surface temperatures. Undersea 

 Technology 4(10): 20-23. 



Clark, John R., and R. B. Stone (1964). Use of the 

 infrared thermometer in routine coastal survey. In: 

 Techniques for infrared survey of sea temperature. 

 U.S. Pish and Wildlife Service, Bureau of Sport 

 Fisheries and Wildlife Circular 202: 134-141. 



EwiNG, GiFFORD C. (1952. Low-level Marine Aerology. 

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EwiNG, GiFFORD C. (1964). Slithering isotherms and 

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Frank, John L. (1964). Accuracy of airborne Infrared 

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 25-36. 



Hester, Frank J. (1961). A method of predicting tuna 

 catch by using coastal sea surface temperatures. 

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HuBBS, C. L., and L. P. ScHULTZ (1929). The north- 

 ward occurrence of southern forms of marine life 

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Hynd, J. S. (1968. Sea surface temperature maps as 

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Johnson, James H. (1961). Sea surface temperature 

 monthly average and anomaly charts, northeastern 

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Johnson, James H., G. A. Flittner, and M. W. Cline 

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McAllister, B. D. and W. L. McLeish (1965). 1. 

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Peloquin, Robert A., J. C. Wilkerson, and G. L. 

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Pickett, Robert L. (1966). Accuracy of an airborne 

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Radovich, John (1961). Relationships of some marine 

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Reintjes, John W. (1964). Comments relative to infra- 

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Royal L. A., and John P. Tully (1961). Relationship 

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Squire, James L., Jr.. (1964). Observations of some 

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