box is protected with hard plastic tubing. The tide gauge has an air venting tube 

 from the junction box to the underwater unit through the cable together with the 

 signal lines and DC power supplying lines in order to make corrections for the 

 effect of the atmospheric pressure automatically. 



2.5.2 U.S.S .R. 



Russian activities regarding sea-level measurements at Soviet Antarctic sta- 

 tions are performed by the Arctic and Antarctic Research Institute of the USSR. 

 Due to severe ice conditions no permanent sea-level observations have been 

 made at Soviet Antarctic stations. Some rough sea-level observations have been 

 made at the Stations Bellingshausen and Russkaya and, occasionally, at the 

 Station Molodezhnaya. There are plans to obtain regular sea-level observations 

 at some Soviet Antarctic stations in connection with the GLOSS and WOCE 

 programs. This will need, however, cooperation with other countries with regard 

 to the establishment of modern tide gauges and exchange of sea-level data with 

 other Antarctic stations. 



2.5.3 New Zealand 



New Zealand has, at infrequent intervals, collected sea level data in the Ross 

 Sea region of Antarctica since 1957. The best continuous sea level data sets are 

 15 months of data from Scott Base in 1988 to 1990. The Scott Base gauge, an 

 absolute pressure transducer type, was lost in a storm in February 1990. The 

 gauge is to be re-established as a permanent site in 1990 with a second gauge 

 to be established as a permanent site at Cape Roberts in 1991. 



2.6 Recent and Applicable Meetings and Workshops 



2.6.1 Workshop on Sea-Level Measurements in Hostile Conditions 



10 



