• the power requirements necessitated by any mechanism including 

 automated data uplink to a satellite. 



The Group's review of the gauges currently in operation revealed that one was 

 a conventional float gauge (using a heated stilling well), one was a bubbler gauge 

 and four were absolute pressure gauges. 



The consensus of the participants was that the most appropriate type of gauge 

 for Antarctic conditions was a bottom-mounted absolute pressure gauge, both 

 recessed into the sea floor and with cabling either recessed into the local rock or 

 well protected by some other means from ice action. The Group also agreed that 

 gauges must be calibrated on an annual basis at ice free periods. 



2.6.4 Second Session of the IOC Group of Experts on the Global Sea-Level 

 Observing System (GLOSS) 



This meeting will be held in Miami, FL, USA in October, 1990. 



2.7 Organizations Interested in the Polar Regions 



Organization 

 NOAA/NOS 



National Science Foundation 

 Div. of Polar Programs 



IOC 



Ocean Services Unit 



Canadian Hydrographic Service 

 Tides,Currents,Water Levels 



Flinders University 

 School of Earth Sciences 



Inst, of Oceanographic Sciences 



13 



