Partial pressure of carbon dioxide, sea surface temperature, sea surface salinity and other variables collected from surface underway observations during R/V Cefas Endeavour Shelf Sea Biogeochemistry CEND cruises in the North Atlantic Ocean, English Channel and North Sea in 2015 (NCEI Accession 0190788)
INVESTIGATOR:
Naomi Greenwood
- Centre for Environment, Fisheries and Aquaculture Science (Cefas)
PACKAGE DESCRIPTION: This dataset consists of surface underway, chemical, meteorological and physical data collected during R/V Cefas Endeavour CEND coastal cruises in the North Atlantic Ocean, English Channel and North Sea from 2015-02-18 to 2015-10-21. These data include air-sea difference of partial pressure of carbon dioxide (pCO2), pCO2 in atmosphere, pCO2 in the water, sea surface salinity and sea surface temperature. The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement.
CITE AS: Greenwood, Naomi (2019). Partial pressure of carbon dioxide, sea surface temperature, sea surface salinity and other variables collected from surface underway observations during R/V Cefas Endeavour Shelf Sea Biogeochemistry CEND cruises in the North Atlantic Ocean, English Channel and North Sea in 2015 (NCEI Accession 0190788). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/vq01-db52. Accessed [date].
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0190788
NCEI DOI: https://doi.org/10.25921/vq01-db52
EXPOCODE: 74E920150218;
74E920150226;
74E920150326;
74E920150706;
74E920150718;
74E920150802;
74E920150811;
74E920150910;
74E920151003;
CRUISE ID: CEND_03_15;
CEND_04_15;
CEND_06_15;
CEND_14_15;
CEND_16_15;
CEND_17_15;
CEND_18_15;
CEND_20_15;
CEND_22_15;
SECTION/LEG: Coastal cruises;
TYPES OF STUDY:
Surface underway;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Surface underway;
TEMPORAL COVERAGE:
START DATE: 2015-02-18
END DATE: 2015-10-21
SPATIAL COVERAGE:
NORTH: 56.61
WEST: -9.25
EAST: 7.97
SOUTH: 48
GEOGRAPHIC NAMES:
North Atlantic Ocean;English Channel;North Sea;
PLATFORMS:
R/V Cefas Endeavour (ID: 74E9);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | xCO2, pCO2, fCO2 |
| Unit: | ppmv, uatm |
| Observation type: | Surface underway |
| Measured or calculated: | Measured |
| Sampling instrument: | Seawater pump |
| Analyzing instrument: | Infrared analysis of headspace in equilibrium with flowing seawater |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Hardman-Mountford et al., 2008. An operational monitoring system to provide indicators of CO2-related variables in the ocean. ICES J. Mar. Sci. 65, 1498-1503. |
| Researcher name: | Naomi Greenwood |
| Researcher institution: | Centre for Environment, Fisheries and Aquaculture Science (Cefas) |
| P_atm | |
|---|---|
| Abbreviation: | P_atm |
| Unit: | Atmospheric pressure measured by Li-Cor at time of marine air measurement (hPa) |
| Controlled vocabulary name: | BAROMETRIC PRESSURE |
| In-situ / Manipulation / Response variable: | in-situ |
| Analyzing instrument: | General Electric Company, UNIK 5000 |
| Uncertainty: | Resolution 1 hPa; Uncertainty ±1 hPa |
| P_equilib | |
|---|---|
| Abbreviation: | P_equilib |
| Unit: | Pressure of equilibration (hPa) |
| In-situ / Manipulation / Response variable: | in-situ |
| T_equ | |
|---|---|
| Abbreviation: | T_equ |
| Unit: | Equilibrator water temperature (deg C, average of the two eqilibrator PRTs used) |
| In-situ / Manipulation / Response variable: | in-situ |
| Analyzing instrument: | Pico-Technology, 2 x platinum resistance thermometers in equilibrator PT100 Class B |
| Uncertainty: | Resolution 0.001 oC; Uncertainty ±0.05 oC |
| T_sea | |
|---|---|
| Abbreviation: | T_sea |
| Unit: | sea surface temperature (in degrees C) |
| Controlled vocabulary name: | SEA SURFACE TEMPERATURE |
| In-situ / Manipulation / Response variable: | in-situ |
| Analyzing instrument: | PT100 for sea surface temperature, unknown manufacturer |
| Uncertainty: | Resolution 0.001 C; Uncertainty ±0.05 C |
| S_sea | |
|---|---|
| Abbreviation: | S_sea |
| Unit: | Intake salinity (unitless) |
| Controlled vocabulary name: | SALINITY |
| In-situ / Manipulation / Response variable: | in-situ |
| Analyzing instrument: | Seabird, Thermosalinograph for Salinity, SBE 45 (serial #: 45295820056) |
| Uncertainty: | Resolution 0.0002; Uncertainty 0.005 |
| xCO2_equ | |
|---|---|
| Abbreviation: | xCO2_equ |
| Unit: | CO2 Mixing Ratio in Equilibrator (dry; in ppmv) |
| In-situ / Manipulation / Response variable: | in-situ |
| xCO2_atm | |
|---|---|
| Abbreviation: | xCO2_atm |
| Unit: | mole fraction of CO2 of atmospheric air, at date_atm (ppm) |
| In-situ / Manipulation / Response variable: | in-situ |
| xH2O_equ | |
|---|---|
| Abbreviation: | xH2O_equ |
| Unit: | Mole fraction H2O in air from equilibrator (mmol/mol) |
| In-situ / Manipulation / Response variable: | in-situ |
| pCO2_sw | |
|---|---|
| Abbreviation: | pCO2_sw |
| Unit: | partial pressure of CO2 in seawater at SST and 100% humidity, at date_sw (µatm) |
| Controlled vocabulary name: | partial pressure of carbon dioxide - water |
| In-situ / Manipulation / Response variable: | in-situ |
| pCO2_atm | |
|---|---|
| Abbreviation: | pCO2_atm |
| Unit: | Partial pressure CO2 in marine air (uatm) |
| Controlled vocabulary name: | Partial pressure (or fugacity) of carbon dioxide - atmosphere |
| In-situ / Manipulation / Response variable: | in-situ |
| fCO2_sw | |
|---|---|
| Abbreviation: | fCO2_sw |
| Unit: | fco2 in air in equilibration with seawater at sea surface temperature and 100% humidity saturation, at date_sw (µatm) |
| Controlled vocabulary name: | partial pressure of carbon dioxide - water |
| In-situ / Manipulation / Response variable: | in-situ |
| fCO2_atm | |
|---|---|
| Abbreviation: | fCO2_atm |
| Unit: | fugacity CO2 in marine air (uatm) |
| In-situ / Manipulation / Response variable: | in-situ |
| ΔpCO2 | |
|---|---|
| Abbreviation: | ΔpCO2 |
| Unit: | pCO2_sw - pCO2_atm (uatm) |
| In-situ / Manipulation / Response variable: | in-situ |
| ΔfCO2 | |
|---|---|
| Abbreviation: | ΔfCO2 |
| Unit: | fCO2_sw - fCO2_atm (uatm) |
| In-situ / Manipulation / Response variable: | in-situ |
| WOCE QC flag | |
|---|---|
| Abbreviation: | WOCE QC flag |
| Unit: | 2 = acceptable measurement, 3 = questionable measurement, 4 = bad measurement |
| In-situ / Manipulation / Response variable: | in-situ |
| Sub-flag | |
|---|---|
| Abbreviation: | Sub-flag |
| Unit: | 1 = outside of standard range, 2 = questionable/interpolated T_sea, 3 = questionable T_equ, 4 = Anomalous T_equ - T_sea (±1.0°C), 5 = Questionable S_sea, 6 = questionable P_atm, 7 = low equilibrator gas flow, 8 = questionable air value, 10 = other, see QC comments |
| In-situ / Manipulation / Response variable: | in-situ |
| QC Comments | |
|---|---|
| Abbreviation: | QC Comments |
| Unit: | Explanations of subflags |
| In-situ / Manipulation / Response variable: | in-situ |
PUBLICATIONS DESCRIBING THIS DATASET:
Hardman-Mountford et al., 2008. An operational monitoring system to provide indicators of CO2-related variables in the ocean. ICES J. Mar. Sci. 65, 1498-1503.
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
NERC - Shelf Sea Biogeochemistry
PROJECT TITLE:
PROJECT ID:
SUBMITTED BY: Naomi Greenwood (naomi.greenwood@cefas.co.uk)
SUBMISSION DATE: 2019-06-06
REVISION DATE: 2021-06-04
PREVIOUS VERSIONS: Version 1.1
