EXPLANATION OP OCEANOGRAPRTC STATION DATA 

 GENERAL 



Each of the items appearing on the data pages is explained below. 

 The vertical arrows shown in some of the column headings indicate the 

 location of decimal points. The presence of asterisks to the left of 

 data indicates these data are doubtful; hence, they were not used in 

 the construction of the curve from which interpolated values (standard 

 depth values ) were derived. Observed values which were obviously 

 invalid were omitted entirely. 



SURFACE OBSERVATIONS 



1. Cruise Number . This number is arbitrarily assigned. It 

 identifies a cruise and provides a means of sorting from the IBM file 

 all cards pertaining to that particular cruise. For operation DEEP 

 w <M7.Ti 60, Rererence Number 006^9 was assigned to USS ATKAj Reference 

 Number CO65O, USS BURTON ISLAND; Reference Number OO65I, USCGC EASTWIND; 

 and Reference Number CO652, USS GLACIER. 



2. Station Number . Stations are numbered consecutively, starting 

 with one, at the beginning of each cruise. Therefore, for a complete 

 identification of a particular station, both cruise and station numbers 

 are necessary. 



3. Date . Month and day are given in Arabic numerals. The last 

 three figures of the year are indicated. The hour is Greenwich Mean Time 

 and is that hour nearest to the start of the first cast. 



k. Latitude and Longitude . The position of the station is given in 

 degrees and minutes. 



5. Sonic Depth . Sonic Depth is the uncorrected sounding for the 

 station, recorded in meters. 



6. Maximum Sample Depth . The maximum depth from which a water 

 sample was obtained at the station is given to the nearest 100 meters. 



7. Wind . Wind speed is given in meters per second. Direction 

 from which the wind blows is coded in degrees true to the nearest ten 

 degrees. The last zero is omitted. North is 36 on this scale and calm 

 is 0. See Table I, Compass Direction Conversion Table for Wind, Sea, 

 and Swell Directions. 



8. Anemometer Height . The height of the anemometer above the 

 waterline is given in meters. 



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