17 May 2001
Title:  SHEBA Nutrient Database  
File:  SHEBA_Nutrient_DB.mdb
Data Version:  1.0, 17 May 2001


Authors: See Contact Info 




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Data Set Overview: 

Data Format: 
Microsoft Access 2000 Database 
	Two linked tables: station, and profile.

	Station: Station information (see below).

	Profile: profile sample data (see below)

	The tables are linked by station id.

Data Remarks:  

The JOIS nutrients are from DFO Canada, H.E. Buster Welch and 
the T,S data are from McPhee & Morison.
The nitrate data is the difference from the orginal NO3+NO2 and NO2 
data.  Small negative nitrate values were converted to a zero value.

Standard disclaimers of data quality apply.  


Station Table parameter and units:

Cruise:  SHEBA
Station:  Unique station number for database table link
Latitude, Longitude: Decimal degree, positive north and east
YYYY, MM, DD: Year, month, and day
Time: Decimal hours and HHMM mix (GMT)
sounding:  Sounding depth (m)


Profile Table parameters and units:

Station:  Unique station number for database table link
z:  Sample depth (m)
T:  Temperature (C)
Sal:  Salinity (psu) and (ppt)
PO4:  Phosphate (uM)
SiO3:  Silicate (uM)
NO2:  Nitrite (uM)
NO3:  Nitrate (uM)
NH4:  Ammonia (uM)