Table 3

Listing of the varialbes, format, definitions, units, and codes contained in the surface sample data collected along the cruise track of the US-USSR Weddell Polynya Expedition (WEPOLEX-81), ndp028.sur.

Variable	Column	Format	Definition
MONTH	1-2	I2	Month
DAY	4-5	I2	Day
SAMPLE	6	A1	Character code represenative of sample number (A-G).
TIME	8-11	I4	Local Time
LATDEG	13-14	I2	Latitude Degrees
LATMIN	16-17	I2	Latitude Minutes
LATDIR	18	A1	Latitude Direction
LONDEG	20-21	I2	Longitude Degrees
LONMIN	23-24	I2	Longitude Minutes
LONDIR	25	A1	Longitude Direction
SALIN	30-35	F6.3	Salinity.
TEMP	41-45	F5.2	Water Temperature in °C.
PH	49-53	F5.3	Concurrent pH at 25°C.
TOTALK	56-59	I4	Total Alkalinity measured from potentiometric titration
TA	61-65	A12	Total Alkalinity measured from single-point titration in µeg/l.