http://lod.bco-dmo.org/id/dataset/831046
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2020-11-20
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Temperature, salinity, fluorescence, and dissolved O2/Ar ratios measured continuously underway onboard basin-wide transects of the North Pacific from Hong Kong to Long Beach, CA
2020-11-20
publication
2020-11-20
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-07-14
publication
https://doi.org/10.26008/1912/bco-dmo.831046.1
Paul Quay
University of Washington
principalInvestigator
Hilary I. Palevsky
University of Washington
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Palevsky, H. I., Quay, P. (2021) Temperature, salinity, fluorescence, and dissolved O2/Ar ratios measured continuously underway onboard basin-wide transects of the North Pacific from Hong Kong to Long Beach, CA. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2020-11-20 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.831046.1 [access date]
Measurements of temperature, salinity, fluorescence, and dissolved O2/Ar ratios from North Pacific Dataset Description: Methods and Sampling: <p><strong>Measurements</strong><br />
Measurements for O2/Ar dissolved gas ratios, temperature, salinity, and fluorescence were continuously measured from an underway seawater system (10 m depth) on basin-wide transects of the North Pacific between Hong Kong and Long Beach, California onboard the M/V OOCL Tianjin and the M/V OOCL Tokyo (each individual transect has a unique Cruise ID). Sea surface temperature and salinity at the time of sample collection were determined using a Sea-Bird Electronics SBE45 thermosalinograph (TSG) installed in the ship’s seawater intake. Fluorescence was measured using a Seapoint Chlorophyll&nbsp;Fluorometer.&nbsp; This dataset presents uncalibrated data; the discrete calibration data are in https://www.bco-dmo.org/dataset/626855.</p>
<p>Underway measurements of O2/Ar dissolved gas ratios were made using continuous flow equilibrator inlet mass spectrometry (EIMS), following the method of Cassar et al. (2009). Water from the underway seawater system was pumped into an equilibrator cartridge (Membrana MicroModule G569, 0.75” x 1”), the headspace of which was delivered to a quadrupole mass spectrometer (Pfeiffer Prisma QMS) that measured individual ion currents at one-second intervals. To prevent biofouling that could cause respiration in the ship’s seawater lines (Juranek et al., 2010), intake lines between the anticorrosive sea chest and the sampling port were purged with bleach and freshwater between every cruise.</p>
<p><strong>NOTE:</strong> Since the samples were collected underway on a vessel moving ~24 knots and samples for all parameters were collected by a single shiprider, ship transit from the time that the location coordinates were recorded to the time of actual sampling could reflect a transit distance offset from the recorded location of up to 40 kilometers.</p>
<p><strong>Methods&nbsp;and Calculations</strong><br />
Methods&nbsp;are described in detail in Clayton et al. (in preparation for JGR: Oceans).&nbsp;<br />
<br />
To aid in interpretation of the O2/Ar data provided here, we include calculations of the air-sea flux of biological oxygen driven by the biological saturation anomaly (O2Arbiosat), termed “bioflux” by Jonsson et al. [2013]:<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Air_sea_flux = k*[O2]eq*(O2Arbiosat/100)<br />
<br />
Where k represents the wind speed-dependent air-sea gas transfer velocity and [O2]eq is the oxygen concentration that would be expected in the mixed layer were it in equilibrium with the atmosphere. We calculate k from daily wind speed data from the NOAA National Climatic Data Center’s multiple-satellite Blended Sea Winds product (<a href="https://www.ncdc.noaa.gov/data-access/marineocean-data/blended-global/blended-sea-winds" rel="noopener noreferrer" target="_blank">https://www.ncdc.noaa.gov/data-access/marineocean-data/blended-global/blended-sea-winds</a>) following the Nightingale et al. (2000)&nbsp;equation and the 60-day (Reuer et al., 2007)&nbsp;time-dependent weighting scheme. We report k here as “Wkn” representing the weighted k value using the Nightingale algorithm. In conditions with limited influence of physical advection, entrainment, and transient changes due to non-steady state conditions over the dissolved gas residence time in the mixed layer, bioflux is equivalent to net community production. However, there are potential biases in quantifying net community production based on observed O2/Ar in dynamic western boundary current regions where steady state assumptions are likely invalid and strong vertical turbulent dissipation rates have been observed.</p>
<p>The following are additional details for relevant fields&nbsp;in this dataset:</p>
<ul>
<li><strong>TrueO2Ar</strong>:&nbsp; ratio of dissolved O2/dissolved Ar in surface seawater as measured by continuous underway equilibrator inlet mass spec, and calibrated with discrete samples from existing dataset (https://www.bco-dmo.org/dataset/626855).</li>
<li><strong>O2Arsat</strong>:&nbsp;O2/Ar ratio expected if both gases were in equilibrium with the atmosphere, which is a function of Salinity and Temperature (Garcia and Gordon, 1992; Hamme and Emerson, 2007)</li>
<li><strong>O2Arbiosat</strong>:&nbsp; percent supersaturation of O2 in surface seawater, calculated from the TrueO2Ar and O2Arsat [O2Arbiosat = (TrueO2Ar/O2Arsat – 1)*100]</li>
<li><strong>MLD</strong>: climatological mixed layer depth from monthly World Ocean Atlas 2013 (with 1 degree gridded data)</li>
<li><strong>Wkn</strong>: air-sea gas transfer velocity in m/day, calculated using a relationship between wind speed and gas transfer from Nightingale et al. (2000) and the NOAA/NCDC Blended Sea Winds satellite wind speed product (Zhang et al. 2006), and using the Reuer et al. (2007) time-dependent weighting scheme and the MLD values given here.</li>
</ul>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0628663 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0628663
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1259055 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1259055
Funding provided by NOAA Oceanic and Atmospheric Research (OAR) Climate Program Office (NOAA OAR Climate Program) Award Number: A10OAR4310088
completed
Paul Quay
University of Washington
206-685-8061
University of Washington School of Oceanography MS 355351
Seattle
WA
98195-7940
USA
pdquay@uw.edu
pointOfContact
Hilary I. Palevsky
University of Washington
617-552-4936
Boston College Dept of Earth and Environmental Sciences 140 Commonwealth Ave
Chestnut Hill
MA
02467
USA
palevsky@bc.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
ISO_DateTime_UTC
Cruise
Latitude
Longitude
Lon360
Salinity
Temperature
Fluo
TrueO2Ar
O2Arsat
O2Arbiosat
MLD_WOA13
Wkn
Air_sea_flux
Seapoint Chlorophyll Fluorometer
Pfeiffer Prisma QMS
Sea-Bird Electronics SBE45
theme
None, User defined
ISO_DateTime_UTC
Cruise identfier
latitude
longitude
longitude from 0 to 360 degrees
sea surface salinity
sea surface temperature
fluorescence
ratio
Dissolved oxygen (percent)
mixed layer depth
No BCO-DMO term
flux
featureType
BCO-DMO Standard Parameters
Equilibrator Inlet Mass Spectrometer
Fluorometer
Quadrupole Mass Spectrometer
Sea-Bird SBE 45 MicroTSG Thermosalinograph
instrument
BCO-DMO Standard Instruments
Tokyo_1
Tokyo_2
Tokyo_3
Tianjin_2
service
Deployment Activity
Pacific Basin transect
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
North Pacific Surface Carbon, Oxygen and Isotope Measurements from Container Ships (2008-)
https://osprey.bco-dmo.org/project/626077
North Pacific Surface Carbon, Oxygen and Isotope Measurements from Container Ships (2008-)
<p>This project is an ongoing time-series beginning in 2008 of measurements relevant to ocean carbon cycling and productivity on basin-wide container ship transects across the North Pacific from Hong Kong to Long Beach, California, with transects made throughout the seasonal cycle beginning in October 2008. The goal of this project is to improve our understanding of the rates and mechanisms of ocean carbon uptake from the atmosphere throughout the seasonal cycle and across spatial gradients across the basin. Sampling includes both discrete samples and continuous underway measurements. Tracers sampled in this program include triple oxygen isotopes (δ17O and δ18O), a tracer of gross primary production, oxygen/argon dissolved gas ratios, a tracer of net community production or carbon export, and carbonate system parameters (pCO2, total alkalinity, DIC, and 13C-DIC) as tracers of ocean carbon uptake and carbon cycling.</p>
NPac Cont Ship
largerWorkCitation
project
eng; USA
oceans
Pacific Basin transect
116.6051464
-120.5016962
22.68718349
49.56855929
2011-05-16
2012-08-06
Transects across the North Pacific from Hong Kong to Long Beach, California, USA; ~25-50N, 115E-120W
0
BCO-DMO catalogue of parameters from Temperature, salinity, fluorescence, and dissolved O2/Ar ratios measured continuously underway onboard basin-wide transects of the North Pacific from Hong Kong to Long Beach, CA
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/834037.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Mean UTC/GMT time for each time interval in ISO format (yyyy-mm-ddT hh:mm:ssZ)</p>
http://lod.bco-dmo.org/id/dataset-parameter/834039.rdf
Name: Cruise
Units: unitless
Description: <p>Cruise ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/834040.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of sample collection, South is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/834041.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of sample collection, West is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/834042.rdf
Name: Lon360
Units: decimal degrees
Description: <p>Longitude on 360 degree scale with 180 at the Date Line</p>
http://lod.bco-dmo.org/id/dataset-parameter/834043.rdf
Name: Salinity
Units: psu
Description: <p>Sea surface Salinity as measured by shipboard thermosalinograph (TSG)</p>
http://lod.bco-dmo.org/id/dataset-parameter/834044.rdf
Name: Temperature
Units: degrees Celsius
Description: <p>Sea Surface Temperature as measured by shipboard thermosalinograph (TSG)</p>
http://lod.bco-dmo.org/id/dataset-parameter/834045.rdf
Name: Fluo
Units: microgram per liter (ug/L)
Description: <p>Fluorescence measured with underway fluorometer (raw, uncalibrated data)</p>
http://lod.bco-dmo.org/id/dataset-parameter/834046.rdf
Name: TrueO2Ar
Units: unitless
Description: <p>Ratio of dissolved O2/dissolved Ar in surface seawater as measured by continuous underway equilibrator inlet mass spectrometry, and calibrated with discrete samples from existing dataset <a href="https://www.bco-dmo.org/dataset/626855">https://www.bco-dmo.org/dataset/626855</a></p>
http://lod.bco-dmo.org/id/dataset-parameter/834047.rdf
Name: O2Arsat
Units: unitless
Description: <p>O2/Ar ratio expected if both gases were in equilibrium with the atmosphere, which is a function of Salinity and Temperature (Garcia and Gordon, 1992; Hamme and Emerson, 2007)</p>
http://lod.bco-dmo.org/id/dataset-parameter/834048.rdf
Name: O2Arbiosat
Units: percent (%)
Description: <p>Percent biological supersaturation of O2 in surface seawater, <strong>calculated</strong> from the TrueO2Ar and O2Arsat [O2Arbiosat = (TrueO2Ar/O2Arsat – 1)*100]. </p>
http://lod.bco-dmo.org/id/dataset-parameter/834049.rdf
Name: MLD_WOA13
Units: meters
Description: <p>Climatological mixed layer depth from monthly World Ocean Atlas 2013 (with 1 degree gridded data), <strong>used in calculations</strong></p>
http://lod.bco-dmo.org/id/dataset-parameter/834050.rdf
Name: Wkn
Units: meters per day (m/day)
Description: <p>Air-sea gas transfer velocity in m/day, <strong>calculated</strong> using a relationship between wind speed and gas transfer from Nightingale et al. (2000) and the NOAA/NCDC Blended Sea Winds satellite wind speed product (Zhang et al. 2006), and using the Reuer et al. (2007) time-dependent weighting scheme and the MLD values given here. </p>
http://lod.bco-dmo.org/id/dataset-parameter/834051.rdf
Name: Air_sea_flux
Units: millimoles O2 per meters squared per day (mmol O2 m-2 d-1)
Description: <p>Exchange of oxygen between the ocean and atmosphere: Airseaflux = (O2Arbiosat/100)*(O2sat)*wkn, where O2sat is <strong>calculated</strong> from the solubility equation from Garcia and Gordon, 1992.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
1513549
https://darchive.mblwhoilibrary.org/bitstream/1912/27353/1/dataset-831046_continuous-underway-data__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.831046.1
download
onLine
dataset
<p><strong>Measurements</strong><br />
Measurements for O2/Ar dissolved gas ratios, temperature, salinity, and fluorescence were continuously measured from an underway seawater system (10 m depth) on basin-wide transects of the North Pacific between Hong Kong and Long Beach, California onboard the M/V OOCL Tianjin and the M/V OOCL Tokyo (each individual transect has a unique Cruise ID). Sea surface temperature and salinity at the time of sample collection were determined using a Sea-Bird Electronics SBE45 thermosalinograph (TSG) installed in the ship’s seawater intake. Fluorescence was measured using a Seapoint Chlorophyll&nbsp;Fluorometer.&nbsp; This dataset presents uncalibrated data; the discrete calibration data are in https://www.bco-dmo.org/dataset/626855.</p>
<p>Underway measurements of O2/Ar dissolved gas ratios were made using continuous flow equilibrator inlet mass spectrometry (EIMS), following the method of Cassar et al. (2009). Water from the underway seawater system was pumped into an equilibrator cartridge (Membrana MicroModule G569, 0.75” x 1”), the headspace of which was delivered to a quadrupole mass spectrometer (Pfeiffer Prisma QMS) that measured individual ion currents at one-second intervals. To prevent biofouling that could cause respiration in the ship’s seawater lines (Juranek et al., 2010), intake lines between the anticorrosive sea chest and the sampling port were purged with bleach and freshwater between every cruise.</p>
<p><strong>NOTE:</strong> Since the samples were collected underway on a vessel moving ~24 knots and samples for all parameters were collected by a single shiprider, ship transit from the time that the location coordinates were recorded to the time of actual sampling could reflect a transit distance offset from the recorded location of up to 40 kilometers.</p>
<p><strong>Methods&nbsp;and Calculations</strong><br />
Methods&nbsp;are described in detail in Clayton et al. (in preparation for JGR: Oceans).&nbsp;<br />
<br />
To aid in interpretation of the O2/Ar data provided here, we include calculations of the air-sea flux of biological oxygen driven by the biological saturation anomaly (O2Arbiosat), termed “bioflux” by Jonsson et al. [2013]:<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Air_sea_flux = k*[O2]eq*(O2Arbiosat/100)<br />
<br />
Where k represents the wind speed-dependent air-sea gas transfer velocity and [O2]eq is the oxygen concentration that would be expected in the mixed layer were it in equilibrium with the atmosphere. We calculate k from daily wind speed data from the NOAA National Climatic Data Center’s multiple-satellite Blended Sea Winds product (<a href="https://www.ncdc.noaa.gov/data-access/marineocean-data/blended-global/blended-sea-winds" rel="noopener noreferrer" target="_blank">https://www.ncdc.noaa.gov/data-access/marineocean-data/blended-global/blended-sea-winds</a>) following the Nightingale et al. (2000)&nbsp;equation and the 60-day (Reuer et al., 2007)&nbsp;time-dependent weighting scheme. We report k here as “Wkn” representing the weighted k value using the Nightingale algorithm. In conditions with limited influence of physical advection, entrainment, and transient changes due to non-steady state conditions over the dissolved gas residence time in the mixed layer, bioflux is equivalent to net community production. However, there are potential biases in quantifying net community production based on observed O2/Ar in dynamic western boundary current regions where steady state assumptions are likely invalid and strong vertical turbulent dissipation rates have been observed.</p>
<p>The following are additional details for relevant fields&nbsp;in this dataset:</p>
<ul>
<li><strong>TrueO2Ar</strong>:&nbsp; ratio of dissolved O2/dissolved Ar in surface seawater as measured by continuous underway equilibrator inlet mass spec, and calibrated with discrete samples from existing dataset (https://www.bco-dmo.org/dataset/626855).</li>
<li><strong>O2Arsat</strong>:&nbsp;O2/Ar ratio expected if both gases were in equilibrium with the atmosphere, which is a function of Salinity and Temperature (Garcia and Gordon, 1992; Hamme and Emerson, 2007)</li>
<li><strong>O2Arbiosat</strong>:&nbsp; percent supersaturation of O2 in surface seawater, calculated from the TrueO2Ar and O2Arsat [O2Arbiosat = (TrueO2Ar/O2Arsat – 1)*100]</li>
<li><strong>MLD</strong>: climatological mixed layer depth from monthly World Ocean Atlas 2013 (with 1 degree gridded data)</li>
<li><strong>Wkn</strong>: air-sea gas transfer velocity in m/day, calculated using a relationship between wind speed and gas transfer from Nightingale et al. (2000) and the NOAA/NCDC Blended Sea Winds satellite wind speed product (Zhang et al. 2006), and using the Reuer et al. (2007) time-dependent weighting scheme and the MLD values given here.</li>
</ul>
Specified by the Principal Investigator(s)
<p><strong>Data processing:</strong>&nbsp;<br />
Data are reported as the mean over a three-minute measurement period, chosen to match the e-folding response time of O2/Ar ion current ratios for this EIMS setup. This yields a spatial resolution of ~2 km at the average ship speed of ~25 knots. For the Tokyo_3 cruise, a Loess filter with a 30-minute half-span was applied to remove high frequency instrument noise in the EIMS setup, reducing the spatial resolution to ~40 km,&nbsp;giving a marginal sampling for mesoscale fields. This filter was not applied to the May 2011 or July 2012 cruises in order to preserve the spatial resolution of the data.</p>
<p><br />
<strong>BCO-DMO processing</strong>:<br />
- Data from all cruises were combined into a single&nbsp;dataset with an added column for Cruise ID<br />
- Timestamp converted to ISO DateTime UTC format in additional column<br />
- Longitude converted from a 360 degree scale to +/- 180 scale,&nbsp;and put in separate column<br />
- Parameter names adjusted to comply with database requirements<br />
- Added a conventional header with dataset name, PI name, version date<br />
- Units added to parameter description metadata section<br />
- Missing data identifier of 'nd' (no data) used</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
PI Supplied Instrument Name: Instrument Name: Equilibrator Inlet Mass Spectrometer Instrument Short Name:EIMS Instrument Description: Cassar N, Barnett BA, Bender ML, Kaiser J, Hamme RC, Tilbrook B., Continuous high-frequency dissolved O2/Ar measurements by equilibrator inlet mass spectrometry. Anal Chem. 2009 Mar 1;81(5):1855-64. doi: 10.1021/ac802300u.
Source: Department of Geosciences, Princeton University, Princeton, New Jersey 08544, USA. ncassar@princeton.edu
Abstract
The oxygen (O(2)) concentration in the surface ocean is influenced by biological and physical processes. With concurrent measurements of argon (Ar), which has similar solubility properties as oxygen, we can remove the physical contribution to O(2) supersaturation and determine the biological oxygen supersaturation. Biological O(2) supersaturation in the surface ocean reflects the net metabolic balance between photosynthesis and respiration, i.e., the net community productivity (NCP). We present a new method for continuous shipboard measurements of O(2)/Ar by equilibrator inlet mass spectrometry (EIMS). From these measurements and an appropriate gas exchange parametrization, NCP can be estimated at high spatial and temporal resolution. In the EIMS configuration, seawater from the ship's continuous intake flows through a cartridge enclosing a gas-permeable microporous membrane contactor. Gases in the headspace of the cartridge equilibrate with dissolved gases in the flowing seawater. A fused-silica capillary continuously samples headspace gases, and the O(2)/Ar ratio is measured by mass spectrometry. The ion current measurements on the mass spectrometer reflect the partial pressures of dissolved gases in the water flowing through the equilibrator. Calibration of the O(2)/Ar ion current ratio (32/40) is performed automatically every 2 h by sampling ambient air through a second capillary. A conceptual model demonstrates that the ratio of gases reaching the mass spectrometer is dependent on several parameters, such as the differences in molecular diffusivities and solubilities of the gases. Laboratory experiments and field observations performed by EIMS are discussed. We also present preliminary evidence that other gas measurements, such as N(2)/Ar and pCO(2) measurements, may potentially be performed with EIMS. Finally, we compare the characteristics of the EIMS with the previously described membrane inlet mass spectrometry (MIMS) approach.
PMID: 19193192 [PubMed - indexed for MEDLINE]
Seapoint Chlorophyll Fluorometer
Seapoint Chlorophyll Fluorometer
PI Supplied Instrument Name: Seapoint Chlorophyll Fluorometer Instrument Name: Fluorometer Instrument Short Name:Fluorometer Instrument Description: A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/113/
Pfeiffer Prisma QMS
Pfeiffer Prisma QMS
PI Supplied Instrument Name: Pfeiffer Prisma QMS PI Supplied Instrument Description:Quadrupole mass spectrometer (Pfeiffer Prisma QMS) measured individual ion currents at one-second intervals. Instrument Name: Quadrupole Mass Spectrometer Instrument Short Name:QMS Instrument Description: A piece of apparatus that consists of an ion source, a mass-to-charge analyser, a detector and a vacuum system and is used to measure mass spectra. The detector is a quadrupole mass-to-charge analyser, which holds the ions in a stable orbit by an electric field generated by four parallel electrodes.
Sea-Bird Electronics SBE45
Sea-Bird Electronics SBE45
PI Supplied Instrument Name: Sea-Bird Electronics SBE45 Instrument Name: Sea-Bird SBE 45 MicroTSG Thermosalinograph Instrument Short Name:SBE 45 MicroTSG Instrument Description: A small externally powered, high-accuracy instrument, designed for shipboard determination of sea surface (pumped-water) conductivity and temperature. It is constructed of plastic and titanium to ensure long life with minimum maintenance. It may optionally be interfaced to an external SBE 38 hull temperature sensor.
Sea Bird SBE 45 MicroTSG (Thermosalinograph) Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0190/
Cruise: Tokyo_1
Tokyo_1
OOCL Tokyo
OOCL Tokyo
vessel
Tokyo_1
Paul Quay
University of Washington
Cruise: Tokyo_2
Tokyo_2
OOCL Tokyo
OOCL Tokyo
vessel
Tokyo_2
Paul Quay
University of Washington
Cruise: Tokyo_3
Tokyo_3
OOCL Tokyo
OOCL Tokyo
vessel
Tokyo_3
Paul Quay
University of Washington
Cruise: Tianjin_2
Tianjin_2
OOCL Tianjin
OOCL Tianjin
vessel
Tianjin_2
Paul Quay
University of Washington
OOCL Tokyo
OOCL Tokyo
vessel
OOCL Tianjin
OOCL Tianjin
vessel