INVESTIGATORS:
Rik Wanninkhof 
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
Richard A. Feely
- NOAA Pacific Marine Environmental Laboratory (PMEL)
PACKAGE DESCRIPTION: This dataset includes biological, chemical, discrete sample, physical and profile data collected from NOAA Ship MALCOLM BALDRIGE in the North Pacific Ocean and South Pacific Ocean from 1992-02-24 to 1992-05-19. These data include CHLOROPHYLL A, DELTA CARBON-13, DELTA CARBON-14, DISSOLVED INORGANIC CARBON (DIC), DISSOLVED OXYGEN, Delta Oxygen-18, HYDROSTATIC PRESSURE, NITRATE, NITRITE, PHAEOPHYTIN, Partial pressure (or fugacity) of carbon dioxide - water, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement, Flask with closed headspace for discrete carbon dioxide (CO2) measurement, bottle and spectrophotometer.
These data were collected by Rik Wanninkhof of NOAA Atlantic Oceanographic and Meteorological Laboratory and Richard A. Feely of US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory as part of the EQ92_SPRING data set. CDIAC associated the following cruise ID(s) with this data set: EQ92_SPRING
CITE AS: Lamb, Marilyn F.; Hendee, James C.; Wanninkhof, Rik; Feely, Richard A.; Millero, Frank J.; Byrne, Robert H.; Peltzer, Edward T.; Wilson, Doug; Berberian, George A. (2014). Partial pressure (or fugacity) of carbon dioxide, dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from NOAA Ship MALCOLM BALDRIGE in the North Pacific Ocean and South Pacific Ocean from 1992-02-24 to 1992-05-19 (NCEI Accession 0117498). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.eq92_spring. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0117498
NCEI DOI: https://doi.org/10.3334/cdiac/otg.eq92_spring
EXPOCODE: 33MW19920224;
CRUISE ID: EQ92_SPRING;
SECTION/LEG: EQ92_SPRING;
TYPES OF STUDY: Discrete measurement;Profile;TEMPORAL COVERAGE:
START DATE: 1992-02-24
END DATE: 1992-05-19
SPATIAL COVERAGE:
WEST: -170.09
EAST: -91.3483
GEOGRAPHIC NAMES: Pacific Ocean;
PLATFORMS: Malcolm Baldrige (ID: 33MW);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon |
|---|
| Abbreviation: |
DIC |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Calculated |
| Detailed sampling and analyzing information: |
Samples were measured using two automated single-operator multiparameter metabolic analyzers (SOMMA: AOML-1 and PMEL-1) with coulometric detection of the CO2 extracted from acidified samples. A description of the SOMMA-coulometry system and its calibration can be found in Johnson et al. 1987. |
| CRM batch number: |
10 |
| Total alkalinity |
|---|
| Abbreviation: |
TA |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Type of titration: |
Single point titration |
| Cell type (open or closed): |
Closed |
| Curve fitting method: |
The TALK titration system was similar to that described in Thurmond and Millero (1982) and developed by Bradshaw (1988) and consisted of Metrohm (tm) 665 Dosimat titrator and Orion (tm) 720 pH meter operated by PC. |
| Uncertainty: |
0.4 μmol/kg |
| Method reference: |
Thurmond and Millero (1982) and Bradshaw (1988). |
| pH |
|---|
| Abbreviation: |
pH |
| pH scale: |
Total ph |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Temperature of pH measurement: |
25deg.C |
| Detailed sampling and analyzing information: |
Spectrophotometric pH measurements were made using the indicator m-Cresol Purple. |
| pCO2 (fCO2) discrete |
|---|
| Abbreviation: |
fCO2 |
| Observation type: |
discrete |
| In-situ / Manipulation / Response variable: |
In-situ observation |
| Measured or calculated: |
Measured |
| Seawater volume: |
500 mL |
| Temperature of measurement: |
20 deg.C |
| Detailed sampling and analyzing information: |
AOML discrete pCO2 system used Licor (tm) model 6262 non-dispersive infrared analyser described in Wanninkhof and Thoning (1993). |
| Uncertainty: |
0.63% |
| Method reference: |
Wanninkhof and Thoning (1993). Chipman et al. (1993) |
| CTDTMP |
|---|
| Abbreviation: |
CTDTMP |
| Unit: |
DEG_C |
| Controlled vocabulary name: |
WATER TEMPERATURE |
| In-situ / Manipulation / Response variable: |
in-situ |
| SALNTY |
|---|
| Abbreviation: |
SALNTY |
| Controlled vocabulary name: |
SALINITY |
| In-situ / Manipulation / Response variable: |
in-situ |
| OXYGEN |
|---|
| Abbreviation: |
OXYGEN |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
DISSOLVED OXYGEN |
| In-situ / Manipulation / Response variable: |
in-situ |
| NITRAT |
|---|
| Abbreviation: |
NITRAT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
NITRATE |
| In-situ / Manipulation / Response variable: |
in-situ |
| NITRIT |
|---|
| Abbreviation: |
NITRIT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
NITRITE |
| In-situ / Manipulation / Response variable: |
in-situ |
| SILCAT |
|---|
| Abbreviation: |
SILCAT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
silicate |
| In-situ / Manipulation / Response variable: |
in-situ |
| PHSPHT |
|---|
| Abbreviation: |
PHSPHT |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
phosphate |
| In-situ / Manipulation / Response variable: |
in-situ |
| TCARBN |
|---|
| Abbreviation: |
TCARBN |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
DISSOLVED INORGANIC CARBON (DIC) |
| In-situ / Manipulation / Response variable: |
in-situ |
| ALKALI |
|---|
| Abbreviation: |
ALKALI |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
total alkalinity |
| In-situ / Manipulation / Response variable: |
in-situ |
| DELC13 |
|---|
| Abbreviation: |
DELC13 |
| Unit: |
/MILLE |
| Controlled vocabulary name: |
DELTA CARBON-13 |
| In-situ / Manipulation / Response variable: |
in-situ |
| THETA |
|---|
| Abbreviation: |
THETA |
| Unit: |
DEG_C |
| Controlled vocabulary name: |
Potential temperature (theta) |
| In-situ / Manipulation / Response variable: |
in-situ |
PUBLICATIONS DESCRIBING THIS DATASET: Lantry, T., Lamb, M. F., Hendee, J. C., Wanninkhof, R., Feely, R. A., Millero, F. J., Byrne, R., Peltzer, E. T., Wilson, D., and Berberian, G., 1995, Chemical and hydrographic measurements from the Equatorial Pacific during boreal spring 1992: NOAA Data Report ERL AOML-27, NOAA Data Report ERL AOML-27.
ADDITIONAL INFORMATION: none;
FUNDING AGENCY:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2014-04-15
REVISION DATE: 2017-02-21
PREVIOUS VERSIONS: Version 1.1
