YUCATAN 



MEX. 



500- 



- 1,500 



^ y y' 



^^^B 



GEOSTROPHIC VELOCITY 



ICM./SEC] /■ 



Figure 25. — Geostxophlc velocity cross section from cruise 16, R/V Geronimo , in the Gulf 



of Mexico, August to October 1967. 



the winter in the deepest waters between 

 eastern Yucatan and southwestern Florida. 

 This condition apparently resulted from waters 

 near shore being drawnoffshore and converging 

 in this area. 



Planktonic foraminifera removed from 

 sannples taken in the surface waters of the 

 Yucatan Strait were sent to O. L. Bandy at 

 the University of Southern California for study. 

 Species of planktonic foraminifers in the water 

 are to be studied in relation to the distribution 

 and abundance of recent foraminiferal tests in 

 the sediments of the western Strait. 



John R. Grady, Project Leader 



were investigated at Goodyear Aerospace Inc., 

 Akron, Ohio. We developed a tentative plan to 

 use blinnps in coastal areas in conjunction with 

 ground-truth surveys. 



Study of photographs taken during lunar 

 missions of Apollo 8 and 10 revealed that 

 major current systems of the ocean were 

 visible from distances between 74,000 and 

 Z59,000 km. (40,000 and 140,000 miles) above 

 the earth. Features such as the Benguela cur- 

 rent, Humboldt current, the Canary and Somali 

 upwelling zones were seen with remarkable 

 clarity. These results confirm the utility of 

 such photographs for analyzing seasonal varia- 

 tions in the major circulation systems of the 

 world. 



Space Applications 



Evaluation of color photographs taken during 

 the missions of Apollo 7 (October 1968) and 

 Apollo 9 (March 1969) provided more informa- 

 tion on oceanographic features, such as eddies, 

 current boundaries, and areas of upwelling. 

 We reviewed and cataloged these photographs. 



Applications of lighter-than-air craft to 

 problems of remote sensing at the sea surface 



John R. Grady, Project Leader 



Remote Sensing of the Pelagic Fishery 

 Environment off Oregon: A Study of 

 Coastal Upwelling and the Columbia 

 River Plume 



Oregon State University began a study of the 

 hydrology, plankton, and albacore catches as 

 related to oceanic fronts produced by upwelling 



36 



