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Marine Chemistry (F069)

This file format is used for data from chemical analyses of seawater samples. Cruise information, position, date, and time is reported for each station along with sample depth, temperature, salinity, and density (sigma-t). Chemical and biochemical parameters that may be reported include: dissolved oxygen, nitrate, nitrite, ammonia, inorganic phosphate, and silicate; dissolved organic carbon, particulate organic carbon, and particulate organic nitrogen; and apparent oxygen utilization, percent oxygen saturation, adenosine triphosphate, total phaeophytin, total chlorophyll, total suspended matter, total recoverable petroleum hydrocarbons, and total resolved light hydrocarbons.

File Structure:

Six 84-character records: (1) File Header Record, (2) First Sample Header Record, (3) Data Record 1, (4) Data Record 2, (5) Data Record 3, (6) Data Record 4, and (7) Text Record.

File Format:

Marine Chemistry (F069)
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
FILE HEADER RECORD
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFIER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '1'101
VESSELELEVEN-CHARACTER FIELD FOR VESSEL NAME1111
CRUISESIX-CHARACTER ORIGINATOR'S CRUISE IDENTIFICATON (LEFT ALIGNED)226
BEGIN CRUISE DATEMM/DD/YYYY2810
BLANK381
END CRUISE DATEMM/DD/YYYY3910
SENIOR SCIENTIST19-CHARACTER FIELD FOR SCIENTIST NAME4919
INVESTIGATOR/INSTITUTION17-CHARACTER FIELD FOR INVESTIGATOR OR INSTITUTION NAME6817
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
FIRST SAMPLE HEADER RECORD
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '2'101
SEQUENCEXXX - ASCENDING NUMERIC113
CAST NUMBERTHREE-CHARACTER STATION IDENTIFIER143
NUMBER OF CASTSSIX-CHARACTERS USED TO REPRESENT THE NUMBER OF CASTS USED TO MAKE UP A STATION. EX. 35-37 REPRESENTS 3 CASTS176
LATITUDEDDMMX (DEGREES, MINUTES TO TENTHS)235
LATITUDE HEMISPHERE1-CHARACTER CODE 'N' OR 'S'281
LONGITUDEDDDMMX (DEGREES, MINUTES TO TENTHS)296
LONGITUDE HEMISPHERE1-CHARACTER CODE 'E' OR 'W'351
DATE (GMT)YYYYMMDD368
TIME (GMT)XXX - HOURS TO TENTHS443
DEPTH TO BOTTOMXXXX - WHOLE METERS474
SALINITY METHODONE-CHARACTER CODE - ('P'= PRACTICAL SALINITY, 'S'=SALINITY, BLANK = NOT SPECIFIED511
STATION IDENTIFIER10-CHARACTER ORIGINATOR STATION IDENTIFIER5210
BLANKS6223
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
DATA RECORD 1
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '3'101
SEQUENCESEE RECORD '2'113
CAST NUMBERSEE RECORD '2'143
SAMPLE DEPTHXXXX - WHOLE METERS174
TEMPERATUREXXXX NEGATIVE TEMPERATURES ARE PRECEDED BY A MINUS SIGN ADJACENT TO TEMPERATURE VALUE - DEG C TO TENTHS214
SALINITYXXXX - PARTS PER THOUSAND OR PRACTICAL SALINITY UNITS - TO HUNDREDTHS)254
SIGMA-TXXXXX - TO THOUSANDTHS295
DISSOLVED OXYGENXXXXX - MICROGRAM-ATOMS/L TO HUNDREDTHS345
NITRATEXXXX - MICROGRAM-ATOMS/L TO HUNDREDTHS394
NITRITEXXXX - MICROGRAM-ATOMS/L TO HUNDREDTHS434
AMMONIAXXXXX - MICROGRAM-ATOMS/L TO HUNDREDTHS475
INORGANIC PHOSPHATEXXXX - MICROGRAM-ATOMS/L TO HUNDREDTHS524
SILICATEXXXXX - MICROGRAM-ATOMS/L TO HUNDREDTHS565
RELATIVE CHLOROPHYLL FLUORESCENCEXXXX - TO HUNDREDTHS614
DISSOLVED ORGANIC CARBONXXXX -MICROGRAMS CARBON/L TO HUNDREDTHS654
PARTICULATE ORGANIC CARBONXXXX-MICROGRAMS CARBON/L TO HUNDREDTHS694
PARTICULATE ORGANIC NITROGENXXXX -MICROGRAMS NITROGEN/L TO HUNDREDTHS734
BLANKS778
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
DATA RECORD 2
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFIER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '4'101
SEQUENCESEE RECORD '2'113
CAST NUMBERSEE RECORD '2'143
DEPTHXXXX - WHOLE METERS174
APPARENT OXYGEN UTILIZATIONXXXXX - MILLIGRAMS-ATOMS/LITER TO THOUSANDTHS215
PERCENT OXYGEN SATURATIONXXX - WHOLE PERCENT263
ELECTRON TRANSPORT SYSTEMXXXXX - MICROLITER OXYGEN/L/HR TO TEN THOUSANDTHS295
ADENOSINE TRIPHOSPHATEXXXXX - NANOGRAM/L TO HUNDREDTHS345
NANOPLANKTON CARBON UPTAKE XXXXX - MILLIGRAMS CARBON/CUBIC M/HR TO TEN THOUSANDTHS395
TOTAL PHAEOPHYTONXXXXX - MILLIGRAMS/CUBIC M TO TEN THOUSANDTHS445
NANOPLANKTON CHLOROPHYLLXXXXX - MILLIGRAMS/CUBIC M TO TEN THOUSANDTHS495
NANOPLANKTON PHAEOPHYTONXXXXX - MILLIGRAMS/CUBIC M TO TEN THOUSANDTHS545
TOTAL CARBON UPTAKEXXXXX - MILLIGRAMS CARBON/CUBIC M/DAY TO TEN THOUSANDTHS595
TOTAL CHLOROPHYLLXXXXX - MILLIGRAMS/CUBIC METER TO TEN THOUSANDTHS645
DRY WEIGHT OF PARTICULATE MATTER XXXXX - MICROGRAMS/LITER TO HUNDREDTHS695
NEPHELSXXXXXXX - KILOHERTZ TO HUNDREDTHS747
BLANKS814
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
DATA RECORD 3
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFIER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '5'101
SEQUENCESEE RECORD '2'113
CAST NUMBERSEE RECORD '2'143
SAMPLE DEPTHXXXXX (METERS TO TENTHS)175
TEMPERATUREXXXX (DEG C TO HUNDREDTHS)224
SALINITYXXXX (PPT OR PRACTICAL SALINITY UNITS - TO HUNDREDTHS264
PHXXXX (TO THOUSANDTHS)304
DISSOLVED OXYGEN GASXXXXXX (MILLILITERS/L TO THOUSANDTHS)346
DISSOLVED ORGANIC CARBONXXXXXX (MILLIGRAMS/L TO THOUSANDTHS)406
PARTICULATE ORGANIC CARBONXXXXXX (MILLIGRAMS/L TO THOUSANDTHS)466
PARTICULATE ORGANIC NITROGENXXXXXX (MILLIGRAMS/L TO THOUSANDTHS)526
TOTAL SUSPENDED MATTERXXXXXX (MILLIGRAMS/L TO THOUSANDTHS)586
TOTAL RECOVERABLE PETROLEUM HYDROCARBONSXXXXXX (MILLIGRAMS/L TO THOUSANDTHS)646
TOTAL RESOLVED LIGHT HYDROCARBONSXXXXXX (MILLIGRAMS/L TO THOUSANDTHS)706
BLANKS769
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
DATA RECORD 4
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFIER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '6'101
SEQUENCESEE RECORD '2'113
CAST NUMBERSEE RECORD '2'143
SAMPLE DEPTHXXXXX - METERS TO TENTHS175
NITRATEXXXXXX - MILLIGRAMS/L TO THOUSANDTHS226
NITRITEXXXXXX - MILLIGRAMSG/L TO THOUSANDTHS286
AMMONIAXXXXXX - MILLIGRAMS/L TO THOUSANDTHS346
SILICON DIOXIDEXXXXXX - MILLIGRAMS/L TO THOUSANDTHS406
TOTAL PHOSPHORUS IN PHOSPHATEXXXXXX - MILLIGRAMS/L TO THOUSANDTHS466
ORGANIC PHOSPHORUS IN PHOSPHATEXXXXXX - MILLIGRAMS/L TO THOUSANDTHS526
CHLOROPHYLL AXXXXXX - MILLIGRAMS/CUBIC METER TO THOUSANDTHS586
PHAEOPHYTIN AXXXXXX - MILLIGRAMS/CUBIC METER TO THOUSANDTHS646
SULFATEXXXXXX - MILLIGRAMS/LITER TO THOUSANDTHSI706
NITRATE-NITRITE RATIOXXXX - TO HUNDREDTHS764
BLANK805
PARAMETER DESCRIPTION STARTING COLUMN FIELD LENGTH
TEXT RECORD
NODC FILE NUMBERALWAYS '069'13
NODC TRACK NUMBER6-CHARACTER UNIQUE CRUISE OR DATA SET IDENTIFIER ASSIGNED BY NODC46
RECORD NUMBERALWAYS '7'101
SEQUENCESEE RECORD '2'113
CAST NUMBERSEE RECORD '2'143
TEXTTEXT1768
  Last modified:    Wed, 10-Oct-2007 20:03 UTC NCEI.info@noaa.gov
 
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