Surface underway measurements of partial pressure of carbon dioxide (pCO2) in water and atmosphere and the other variables obtained during R/V Celtic Explorer Ships of Opportunity (SOOP) cruises in the North Atlantic Ocean from 2017-04-20 to 2017-12-09 (NCEI Accession 0186103)
INVESTIGATORS:
Margot Cronin
- Marine Institute of Ireland (MI)
Tobias Steinhoff
- GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
PACKAGE DESCRIPTION: This dataset includes surface underway, chemical, meteorological and physical data collected from R/V Celtic Explorer Ships of Opportunity (SOOP) cruises in the North Atlantic Ocean from 2017-04-20 to 2017-12-09. These data include partial pressure (or fugacity) of carbon dioxide (pCO2) - atmosphere, pCO2 - water, sea surface salinity, sea surface temperature and barometric pressure. The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer.
CITE AS: Cronin, Margot; Steinhoff, Tobias (2019). Surface underway measurements of partial pressure of carbon dioxide (pCO2) in water and atmosphere and the other variables obtained during R/V Celtic Explorer Ships of Opportunity (SOOP) cruises in the North Atlantic Ocean from 2017-04-20 to 2017-12-09 (NCEI Accession 0186103). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/vgeg-r876. Accessed [date].
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0186103
NCEI DOI: https://doi.org/10.25921/vgeg-r876
EXPOCODE: 45CE20170420;
45CE20170428;
45CE20170524;
45CE20170606;
45CE20170704;
45CE20170722;
45CE20170811;
45CE20170922;
45CE20171003;
45CE20171015;
45CE20171105;
CRUISE ID: Coastal;
SOOP;
SECTION/LEG: Coastal;
TYPES OF STUDY:
Surface underway;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Surface underway;
TEMPORAL COVERAGE:
START DATE: 2017-04-20
END DATE: 2017-12-09
SPATIAL COVERAGE:
NORTH: 60.3
WEST: -51.6
EAST: 11.5
SOUTH: 41.9
GEOGRAPHIC NAMES:
North Atlantic Ocean;
PLATFORMS:
R/V Celtic Explorer (ID: 45CE);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Year|Month|Day | |
|---|---|
| Abbreviation: | Year|Month|Day |
| In-situ / Manipulation / Response variable: | in-situ |
| Hour|Minute|Second | |
|---|---|
| Abbreviation: | Hour|Minute|Second |
| In-situ / Manipulation / Response variable: | in-situ |
| Day of year | |
|---|---|
| Abbreviation: | Day of year |
| Unit: | decimal year day |
| In-situ / Manipulation / Response variable: | in-situ |
| Longitude [deg E] | |
|---|---|
| Abbreviation: | Longitude [deg E] |
| In-situ / Manipulation / Response variable: | in-situ |
| Latitude [deg N] | |
|---|---|
| Abbreviation: | Latitude [deg N] |
| In-situ / Manipulation / Response variable: | in-situ |
| SST [deg C] | |
|---|---|
| Abbreviation: | SST [deg C] |
| Unit: | Sea surface temperature in deg C |
| Controlled vocabulary name: | SEA SURFACE TEMPERATURE |
| In-situ / Manipulation / Response variable: | in-situ |
| SSS | |
|---|---|
| Abbreviation: | SSS |
| Unit: | Sea Surface Salinity |
| Controlled vocabulary name: | SALINITY |
| In-situ / Manipulation / Response variable: | in-situ |
| Atm. Pressure [mbar] | |
|---|---|
| Abbreviation: | Atm. Pressure [mbar] |
| Unit: | Atmospheric pressure in mbar |
| Controlled vocabulary name: | BAROMETRIC PRESSURE |
| In-situ / Manipulation / Response variable: | in-situ |
| Equi Temp [deg C] | |
|---|---|
| Abbreviation: | Equi Temp [deg C] |
| Unit: | Water temperature inside the equilibrator in deg C |
| In-situ / Manipulation / Response variable: | in-situ |
| Equi Press [mbar] | |
|---|---|
| Abbreviation: | Equi Press [mbar] |
| Unit: | Pressureinside the equilibrator in mbar |
| In-situ / Manipulation / Response variable: | in-situ |
| xCO2 (equi temp, dry) [ppm] | |
|---|---|
| Abbreviation: | xCO2 (equi temp, dry) [ppm] |
| Unit: | mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature in ppm |
| In-situ / Manipulation / Response variable: | in-situ |
| pCO2 (SST, 100hum) [uatm] | |
|---|---|
| Abbreviation: | pCO2 (SST, 100hum) [uatm] |
| Unit: | partial pressure of CO2 in seawater at SST and 100% humidity in µatm |
| In-situ / Manipulation / Response variable: | in-situ |
| fCO2 (SST, 100hum) [uatm] | |
|---|---|
| Abbreviation: | fCO2 (SST, 100hum) [uatm] |
| Unit: | fugacity of CO2 in seawater at SST and 100% humidity in µatm |
| In-situ / Manipulation / Response variable: | in-situ |
| Atm. xCO2 (dry) [ppm] | |
|---|---|
| Abbreviation: | Atm. xCO2 (dry) [ppm] |
| Unit: | mole fraction of CO2 of atmospheric air in ppm |
| Controlled vocabulary name: | Partial pressure (or fugacity) of carbon dioxide - atmosphere |
| In-situ / Manipulation / Response variable: | in-situ |
| Atm xCO2 (dry, running mean) [ppm] | |
|---|---|
| Abbreviation: | Atm xCO2 (dry, running mean) [ppm] |
| Unit: | mole fraction of CO2 of atmospheric air in ppm same as 18 but with a running mean (500 minutes) to interpolate between measurements |
| In-situ / Manipulation / Response variable: | in-situ |
PUBLICATIONS DESCRIBING THIS DATASET:
Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005
Steinhoff, T. (2010). Carbon and nutrient fluxes in the North Atlantic Ocean. Dissertation. http://eldiss.uni-kiel.de/macau/receive/dissertation_diss_00005704
ADDITIONAL INFORMATION:
A so-called GO system was used for pCO2 measurements. The system is described in detail in Pierrot (2009). Surface water is pumped continuously from the intake to the equilibrator. The equilibrator contains a water spray head, and as the water flows through it the dissolved CO2 equilibrates with the headspace. The headspace is dried and xCO2 is determined by an infrared sensor. Calculations were performed following Pierrot (2009) and are described in detail in Steinhoff (2010). The data reduction was done in cooperation with Tobias Steinhoff (tsteinhoff@geomar.de).
FUNDING AGENCY:
Irish Marine Institute
PROJECT TITLE:
Marine Research Programme by the Irish Government
PROJECT ID:
SUBMITTED BY: Tobias Steinhoff (tsteinhoff@geomar.de)
SUBMISSION DATE: 2019-02-15
REVISION DATE: 2020-01-14
PREVIOUS VERSIONS: Version 1.1
