Table 7. — U.S. institutions, investigators, and projects in ISOS program 



Organization 



Investigator 



Project title 



Columbia University, 



Lamont-Doherty Geological Observatory 



NOAA Data Buoy Office 



Oregon State University 



Texas A & M University 



University of Southern California 



University of Washington 



Woods Hole Oceanographic Institution 



A. Gordon 



A. Gordon 

 S. Jacobs 



J. Winchester 



V. T. Neal 



V. T. Neal 

 H. Crew 



R. D. Pillsbury 

 R. L. Smith 



A. D. Kirwan 



W. D. Nov^lin 



W. D. Nowlin 

 P. K. Park 



P. K. Park 

 T. Maxworthy 

 D. J. Baker 



D. J. Baker 

 D. J. Baker 



J. R. Luyten 

 T. Joyce 



Planning Activities and Oceanographic Atlas 



Investigation of Physical Oceanography of the 

 Northwest Scotia Sea and Falkland Plateau 



A Pilot Drifting Buoy Experiment in the 

 Southern Ocean 



International Coordination 



Study of Thermohaline Processes under Antarctic 

 Sea Ice in Winter 



Study of Long-term Variability of the Antarctic 

 Circumpolar Current in the Drake Passage 



Interpretation of Drifter Observations 



Central Administrative Coordination and Planning 



Chemical and Physical Oceanography of the Antarctic 

 Circumpolar Current and Frontal Zones: I. Observa- 

 tions in the Drake Passage and Scotia Sea 



Antarctic Oceanography in the Drake Passage and 

 Scotia Sea aboard ARA Islas Orcadas, 1975 



Laboratory Modelling Studies of Antarctic 

 Circumpolar Current 



Coordination of Monitoring Activities and Liaison 

 with the Polar Experiment of the Global Atmospheric 

 Research Program 



1975 Theoretical Workshops 



Transport Measurements of the Antarctic Circum- 

 polar Current and Analysis of Existing Tidal and 

 Meteorological Data 



A Planning Program for the Working Group on 

 Theoretical and Special Process Studies 



Dynamical Observations at the Antarctic Polar Front 



implanted during the deployment cruise to measure V and T. 

 The data will supplement those from the long-term array and 

 will be useful in estimating the strength and coherence of short- 

 period fluctuations. This data will provide the only time series 

 available for study during 1975 and for planning the 1976 

 field effort. 



3 ) Four internally recording pressure gauges. Two were placed 

 at the northern end and two at the southern end of Drake Pas- 

 sage to remain for 1 year. The sensors were at depths of 100 

 to 200 m on the continental shelves. If the instruments perform 

 to within their stated accuracy of ± 1cm of water, these meas- 

 urements should give useful estimates of cross-stream pressure 

 changes — which are observed to have amplitudes at long pe- 

 riods of as much as 20 cm. 



Measurements of Physical and Chemical Properties in Sec- 

 tions Across Drake Passage. A hydrographic section of physical 

 and chemical measurements was made across Drake Passage to 



examine the baroclinicity before current and temperature re- 

 cording arrays were deployed. Special attention was given to 

 bathymetry before and during deployment. These measurements 

 were supplemented by others during deployment. A second set 

 of measurements was obtained when the short-term array was 

 retrieved. 



Based on existing oceanographic information, the flow 

 through Drake Passage seems to have two regions of large 

 baroclinic shear relative to that in the water between these 

 "cores." The first hydrographic section determined the location 

 of these cores so that the current and temperature arrays could 

 be properly deployed. The second hydrographic section per- 

 mitted detailed sampling of features observed during the first 

 section. The second section also was compared with the first 

 to see whether large changes in the position of the baroclinic 

 structure occur. 



Deep stations were made within the Bransfield Strait, which 



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