File: PRIMARY PRODUCTIVITY 1 (F029) Geographic Coverage: Coastal Alaska, North Pacific, Puget Sound, U.S. Gulf Coast Time Period: 1958 to 1983 File Organization: Cruise order File Size: 6,146 Stations Description: This file contains data from measurements of primary productivity. The data are collected to provide information on nutrient levels and nutrient flow in offshore areas. In addition to cruise information, position, date, time, sampling depths, bottom depth, and environmental information, this file may contain measured parameters including: concentrations of nutrients such as phosphate, nitrate, silicate, and ammonia; temperature and salinity; and carbon assimilation. Measurements of chlorophyll A, phaeopigment, and carbon assimilation may be reported as integrated values. A free-text record is available for comments. File Structure: Four 80-character records: (1) File Header Record, (2) Master Record, (3) Detail Record, and (4) Text Record. File Format: Primary Productivity (F029) PARAMETER DESCRIPTION SC FL FILE HEADER RECORD NODC FILE NUMBER ALWAYS '029' 1 3 NODC TRACK NUMBER 6-CHARACTER UNIQUE CRUISE OR DATA SET 4 6 IDENTIFIER ASSIGNED BY NODC RECORD NUMBER ALWAYS '0' 10 1 VESSEL ELEVEN-CHARACTER FIELD FOR VESSEL NAME 11 11 DETERMINED BY THE ORIGINATOR CRUISE SIX-CHARACTER FIELD FOR CRUISE NUMBER - 22 6 ASSIGNED BY THE ORIGINATOR BEGIN CRUISE DATE (GMT) YY/MM/DD 28 8 BLANK ONE BLANK 36 1 END CRUISE DATE (GMT) YY/MM/DD 37 8 SENIOR SCIENTIST 19-CHARACTER FIELD FOR SCIENTISTS NAME 45 19 INVESTIGATOR/INSTITUTION 17-CHARACTER FIELD FOR INVESTIGATOR OR 64 17 INSTITUTION NAME MASTER RECORD NODC FILE NUMBER ALWAYS '029' 1 3 NODC TRACK NUMBER 6-CHARACTER UNIQUE CRUISE OR DATA SET 4 6 IDENTIFIER ASSIGNED BY NODC RECORD NUMBER ALWAYS '1' 10 1 STATION NUMBER FIVE-CHARACTER FIELD ASSIGNED BY THE 11 5 ORIGINATOR - ALSO INCLUDED IN RECORD TYPES 3 AND 4 LATITUDE DDMMSS (DEGREES, MINUTES, SECONDS) 16 6 LATITUDE HEMISPHERE 1-CHARACTER CODE - 'N' OR 'S' 22 1 LONGITUDE DDDMMSS (DEGREES, MINUTES, SECONDS) 23 7 LONGITUDE HEMISPHERE 1-CHARACTER CODE - 'E' OR 'W' 30 1 DATE (GMT) YYMMDD 31 6 TIME (GMT) XXXX (HOURS AND MINUTES) 37 4 TIME ZONE XX - PRECEDED BY + OR - SIGN 41 3 DEPTH TO BOTTOM XXXXX (WHOLE METERS) 44 5 CHLOROPHYLL A XXXX (MILLIGRAMS PER SQ METER TO 49 4 (INTEGRATED) TENTHS) PHAEOPIGMENTS XXXX (MILLIGRAMS PER SQ METER TO 53 4 (INTEGRATED) TENTHS) CARBON ASSIMILATION XXXXX (MILLIGRAMS PER SQ METER TO 57 5 (INTEGRATED) TENTHS PER DAY) ONE PERCENT LIGHT DEPTH XXX (WHOLE METERS) 62 3 PHOSPHATE PO4-P REACTIVE XX (MINUTES) 65 2 TIME PH SCALE ONE-DIGIT CODE FOR INDICATING TYPE OF 67 1 SCALE USED - USE NODC CODE 0183 IN-SITU CORRECTIONS FOR ONE-DIGIT CODE FOR INDICATING 68 1 PH CORRECTION STATUS - USE NODC CODE 0184 SECCHI DEPTH XX - GREATEST DEPTH THAT SECCHI DISC 69 2 CAN BE OBSERVED - (WHOLE METERS) MIXED LAYER DEPTH XXX (WHOLE METERS) 71 3 LIGHT LEVEL (ABOARD XXX - (LANGLEYS/DAY) 74 3 PLATFORM) QUANTA XXXX - MICRO-EINSTEINS PER SQ METER 77 4 PER DAY TO THREE DIGITS - 4TH COLUMN (80) IS FOR EXPONENT - ALL UNITS WILL BE POSITIVE VALUES DETAIL RECORD NODC FILE NUMBER ALWAYS '029' 1 3 NODC TRACK NUMBER 6-CHARACTER UNIQUE CRUISE OR DATA SET 4 6 IDENTIFIER ASSIGNED BY NODC RECORD NUMBER ALWAYS '3' 10 1 STATION NUMBER SEE RECORD '1' 11 5 DEPTH OF SAMPLE XXXXX (METERS TO TENTHS) 16 5 CHLOROPHYLL A XXXX (MILLIGRAMS PER CUBIC METER TO 21 4 CONCENTRATION HUNDREDTHS) PHAEOPIGMENT XXXX (MILLIGRAMS PER CUBIC METER TO 25 4 CONCENTRATION HUNDREDTHS) CARBON ASSIMILATION XXXXX (MILLIGRAMS OF CARBON PER 29 5 CUBIC METER PER HOUR) ELAPSED TIME OF XXXX (HOURS AND MINUTES) 34 4 INCUBATION OXYGEN XXXX (MILLILITERS/L TO HUNDREDTHS) 38 4 PHOSPHATE PO4-P XXXX (MICROGRAM-ATOMS/L TO HUNDREDTHS) 42 4 (INORGANIC) AMMONIA NH3-N XXX (MICROGRAM-ATOMS/L TO TENTHS) 46 3 NITRATE NO3-N XXX (MICROGRAM-ATOMS/L TO TENTHS) 49 3 NITRITE NO2-N XXX (MICROGRAM-ATOMS/L TO HUNDREDTHS) 52 3 SILICATE SIO3-SI XXXXX (MICROGRAM-ATOMS/L TO TENTHS) 55 5 PH XXX - TO HUNDREDTHS 60 3 ALKALINITY, TOTAL XXXX (MILLEQUIVALENTS PER LITER TO 63 4 THOUSANDTHS) TEMPERATURE XXXX-NEGATIVE TEMPERATURE ARE PRECEDED 67 4 BY A MINUS SIGN ADJACENT TO TEMPERATURE VALUE (DEG C TO HUNDREDTHS) SALINITY XXXX (PARTS PER THOUSAND OR PRACTICAL 71 4 SALINITY UNITS - TO HUNDREDTHS) BLANKS 75 3 SEQUENCE NUMBER XXX - USED FOR SORTING DATA RECORDS 78 3 TEXT RECORD NODC FILE NUMBER ALWAYS '029' 1 3 NODC TRACK NUMBER 6-CHARACTER UNIQUE CRUISE OR DATA SET 4 6 IDENTIFIER ASSIGNED BY NODC RECORD NUMBER ALWAYS '4' 10 1 STATION NUMBER SEE RECORD '1' 11 5 TEXT 62-CHARACTER FIELD FOR COMMENTS OR 16 62 PERTINENT INFORMATION SEQUENCE NUMBER XXX - USED FOR SORTING TEXT RECORDS OR 78 3 INSERTING WITH DATA RECORDS NODC Code Tables Used with this Format: 0183 PH SCALE ---- -------------------- 1 -- NBS PH SCALE 2 -- SORENSEN PH SCALE 3 -- HANSSON PH SCALE 0184 IN SITU CORRECTIONS ---- -------------------- 1 -- TEMPERATURE AND PRESSURE CORRECTION HAVE BEEN MADE 2 -- NO CORRECTIONS MADE