http://lod.bco-dmo.org/id/dataset/918545
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
2024-01-25
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Organic alkalinity data from estuary transects in Coastal Gulf of Maine (Pleasant, Maine; St. John, New Brunswick) in May and October of 2018 and 2019
2024-01-25
publication
2024-01-25
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2024-01-29
publication
https://doi.org/10.26008/1912/bco-dmo.918545.1
Christopher Hunt
University of New Hampshire
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: Hunt, C. (2024) Organic alkalinity data from estuary transects in Coastal Gulf of Maine (Pleasant, Maine; St. John, New Brunswick) in May and October of 2018 and 2019. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2024-01-25 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.918545.1 [access date]
Dataset Description: <p>This project was a collaboration between Dr. Christopher W. Hunt and Dr. Joseph Salisbury (of the University of New Hampshire) and Dr. Xuewu Liu and Dr. Robert H. Byrne (of the University of South Florida).</p> Methods and Sampling: <p>Sampling was conducted during day trips on Pleasant (Maine, USA) and St. John (New Brunswick, CA) estuaries in May and October 2018 and 2019.&nbsp;&nbsp;<br />
<br />
* See "Related Datasets" section for access to the related Underway Data described below.</p>
<p><em>Sample Collection:</em></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Four surveys were conducted of both the Pleasant and St. John estuaries, in May and October 2018, and again in May and October 2019 in order to assess potential differences in estuary conditions between spring and fall seasons. Estuary samples were collected during single-day surveys on small vessels in each system, departing from Addison Maine for Pleasant estuary surveys and from St. John, New Brunswick, for St. John surveys. Estuary water was continuously pumped to an underway measurement system, which recorded location, salinity(Seabird SBE-45), water temperature (Seabird SBE-45), and the partial pressure of carbon dioxide (pCO<sub>2</sub>) among other parameters. Surveys were started on the incoming tide and lasted through high tide and into the ebb tide. At intervals determined from the underway salinity, surface water was captured for discrete sample collection. During the October 2017 and May 2018 surveys a Niskin bottle was lowered overboard by hand; during the later surveys a 10-liter high-density polyethylene (HDPE) carboy was rinsed and filled from the outflow of the underway system, then tightly capped until samples were drawn from a spout at the bottom of the carboy. River endmember samples were collected from above the final downstream dam on each river. For the Pleasant, this dam formed a physical tidal barrier, and the transition from river to estuary was immediate. For the St. John the closest site was in Fredericton New Brunswick, a location over 120 km from the estuary mouth along the river’s course. For both endmember sites, a plastic bucket was lowered from the center of a bridge over the river, rinsed three times with river water, and samples were collected as described above. The temperature and conductivity of samples were measured directly from the bucket with a handheld meter (YSI, Yellow Springs, Ohio).</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Water from the Niskin or carboy was transferred without bubbling into individual, previously-flushed borosilicate glass BOD bottles: 500 mL for alkalinity and pH<sub>T</sub>&nbsp;analyses, and 300 mL for inorganic carbon (DIC) analysis. All bottles had greased stoppers and positive closure mechanisms, were filled to leave less than 1% headspace in the bottle, and were preserved with saturated mercuric chloride solution. Samples for silicate and phosphate analysis were filtered using a plastic syringe and 0.2 µm cartridge filter into acid-washed and previously-rinsed 50 mL HDPE vials and preserved with chloroform. Samples for DOC were filtered as was done for the nutrients into acid-washed and previously-rinsed 30 mL HDPE bottles. All samples were immediately placed on ice. Alkalinity, pH, and DIC samples were refrigerated until analysis; nutrient and DOC samples were frozen until analysis.<br />
<br />
Instruments:<br />
<br />
Discrete sample salinity was measured with a Guildline Portasal salinometer (Guildline, Smiths Falls Canada). The pHT of samples above pHT 7.0 was measured spectrophotometrically with meta-cresol purple (mCP), using 10 cm pathlength cylindrical glass cells and an Agilent Technologies Cary 8454 UV-Vis spectrometer.&nbsp; The same instrument was used to verify the response slope of a combination glass pH electrode (Metrohm EcoTode Plus). For samples of pHT less than 7.0, and therefore outside the working range of mCP, the initial electrode mV reading and zero-pHT intercept potential (E0) value determined from the AlkGran1 titration were used to calculate the pHT of the untitrated sample. DOC was measured with an uncertainty of 1.5 µmol kg-1 using a Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection. Nutrients including phosphate and silicate were analyzed using a SmartChem automated analyzer (Westco Scientific) according to standard colorimetric methods. The resulting measurement uncertainties were 0.8 µmol kg-1 and 0.25 µmol kg-1, respectively (Strickland and Parsons 1972). DIC was measured by acidifying each sample in a custom-built gas extraction system and measuring the evolved CO2 with a Picarro G5131-I cavity ringdown spectrometer (Picarro, Santa Clara CA).&nbsp;<br />
<br />
Alkalinity Titrations<br />
Total alkalinity and organic alkalinity titrations were conducted using a custom-built apparatus similar to that presented in Cai et al. (1998). This system performed several successive titrations on the same water sample. The total alkalinity was measured by Gran titration (AlkGran1) , followed by the carbonate-free alkalinity that was also measured using the Gran titration approach (AlkGran2), and finally the carbonate-free alkalinity was measured according to an endpoint approach at pHT 4.5 (Alk4.5).&nbsp; Samples were initially titrated from the initial pHT (pHi) to a pHT of 3.5, bubbled with nitrogen, then titrated to pHT 3.0 (AlkGran1).&nbsp; CO2-free NaOH was then added to return the sample to an alkaline pHi.&nbsp; The sample was then titrated to pHT 3.0 (AlkGran2).&nbsp; This process was then repeated, with the final titration ending at pHT 4.5 (Alk4.5).<br />
<br />
NaOH titrations<br />
We generally followed the methods presented by Cai et al. (1998), Song et al. (2020), and Kerr et al. (2023a) to estimate both organic functional group concentrations (XTi) and corresponding acid dissociation constants (pKai). Briefly, a sample was acidified to pHT 3.0 via Gran titration (AlkGran1), then automatically titrated stepwise under nitrogen with small additions of CO2-free NaOH from pHT 3.0 to pHT 8.5 or 10, resulting in several hundred sequential NaOH additions.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1658321 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1658321
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1658377 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1658377
completed
Christopher Hunt
University of New Hampshire
603-862-1348
8 College Road
Durham
NH
03824-2600
USA
chunt@unh.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
ID
Collection_Date
Collection_Time
ISO_DateTime_UTC
Latitude
Longitude
Salinity
In_Situ_Water_Temperature
pHT
pH_Method
pCO2
DOC
T_Alk
DIC
OrgAlk_from_Endpoint_Titration
OrgAlk_from_Second_Gran_Titration
SiO2
PO4
X1T
K1org
X2T
K2org
X3T
K3org
SmartChem automated analyzer (Westco Scientific)
pH electrode (Metrohm EcoTode Plus)
Guildline Portasal salinometer (Guildline, Smiths Falls Canada)
Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection
Picarro G5131-I cavity ringdown spectrometer (Picarro, Santa Clara CA)
Agilent Technologies Cary 8454 UV-Vis spectrometer
handheld meter (YSI, Yellow Springs, Ohio).
theme
None, User defined
sample identification
date
time of day
ISO_DateTime_UTC
latitude
longitude
salinity
water temperature at measurement depth
pH
sample description
Partial pressure of CO2
dissolved organic Carbon
total alkalinity (TA)
dissolved inorganic Carbon
No BCO-DMO term
silicate, silicon dioxide SiO2
reactive phosphorus (PO4)
featureType
BCO-DMO Standard Parameters
Discrete Analyzer
Niskin bottle
pH Sensor
Salinometer
Sea-Bird SBE 45 MicroTSG Thermosalinograph
Shimadzu TOC-L Analyzer
Spectrometer
Spectrometer
Thermosalinograph
instrument
BCO-DMO Standard Instruments
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.
Collaborative Research: Organic Alkalinity: Impacts of the [OTHER] Alkalinity on Estuary and Coastal Ocean Chemistry
https://osprey.bco-dmo.org/project/876891
Collaborative Research: Organic Alkalinity: Impacts of the [OTHER] Alkalinity on Estuary and Coastal Ocean Chemistry
<p>NSF Award Abstact:</p>
<p>Estuaries are bodies of water formed where rivers meet the ocean, and are important ecosystems that provide protected environments and abundant food for fish and shellfish to reproduce. Many estuary systems are under pressure by changing atmospheric and oceanic conditions, as well as impacts on the rivers that empty into them. Scientists from the University of New Hampshire and the University of South Florida propose that the total alkalinity of some coastal systems, influenced by river runoff, may contain a large fraction of organic acids that have been previously ignored and may play a role in the acid-base chemistry of the estuary. This project would focus on understanding the organic and inorganic acid-base chemistry in estuaries. The project will support a PhD student and several undergraduate students, as well as high school interns from minority communities, broadening participation in the ocean sciences. Also, the monitoring and outreach capacity of a regional wild fishery conservation group will be enhanced, allowing the public to be more fully informed on the effect of ongoing estuarine changes on fisheries.</p>
<p>This project will be a comparison study of two estuary-plume systems to examine the exact buffering impact of organic alkalinity on the acid-base properties of coastal systems. The Pleasant (Maine) and St. John (Canada) estuaries represent extremes of river acid-base systems, where the Pleasant is comprised mostly of organic alkalinity and the St. John has a small organic alkalinity fraction. It is hypothesized by these scientists that some coastal regions may experience organic alkalinity as the dominant alkalinity factor in the total alkalinity distribution. This would mean that organic alkalinity would be the dominant factor affecting system pH, pCO2 (partial pressure of carbon dioxide), and the saturation index of aragonite. By doing this river endmember study into organic alkalinity of these two systems, these scientists will provide the tools for the entire oceanographic community to assess the buffering capability of organic alkalinity in other coastal systems and how the systems are likely to respond to acidification.</p>
organic alkalinity
largerWorkCitation
project
eng; USA
oceans
-67.764
-66.001
44.48
45.941
2018-05-15
2019-10-24
Laboratory Research and Florida, New Hampshire, Maine
0
BCO-DMO catalogue of parameters from Organic alkalinity data from estuary transects in Coastal Gulf of Maine (Pleasant, Maine; St. John, New Brunswick) in May and October of 2018 and 2019
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/918623.rdf
Name: ID
Units: unitless
Description: <p>Sample identification number for each estuary transect</p>
http://lod.bco-dmo.org/id/dataset-parameter/918624.rdf
Name: Collection_Date
Units: unitless
Description: <p>Collection Date (mm/dd/yyyy)</p>
http://lod.bco-dmo.org/id/dataset-parameter/918625.rdf
Name: Collection_Time
Units: unitless
Description: <p>Collection Time, in Universal Time (i.e. Greenwich Mean Time)</p>
http://lod.bco-dmo.org/id/dataset-parameter/918626.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Collection DateTime in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/918627.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Station Latitude, south is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/918628.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Station Longitude, west is negative</p>
http://lod.bco-dmo.org/id/dataset-parameter/918629.rdf
Name: Salinity
Units: unitless
Description: <p>Sample salinity measured by the Guildline PortaSal</p>
http://lod.bco-dmo.org/id/dataset-parameter/918630.rdf
Name: In_Situ_Water_Temperature
Units: degrees Celcius
Description: <p>Sample temperature measured by the Seabird SBE-45</p>
http://lod.bco-dmo.org/id/dataset-parameter/918631.rdf
Name: pHT
Units: unitless (total scale)
Description: <p>pH on the Total Scale, measured at 25 degrees Celcius</p>
http://lod.bco-dmo.org/id/dataset-parameter/918632.rdf
Name: pH_Method
Units: unitless
Description: <p>mCP=spectrophotometrically using meta-cresol purple, Electrode=via potentiometric pH electrode</p>
http://lod.bco-dmo.org/id/dataset-parameter/918633.rdf
Name: pCO2
Units: microatmospheres
Description: <p>Partial Pressure of carbon dioxide in estuary water equilibrated with atmospheric air</p>
http://lod.bco-dmo.org/id/dataset-parameter/918634.rdf
Name: DOC
Units: micromoles carbon per liter
Description: <p>Dissolved Organic Carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/918635.rdf
Name: T_Alk
Units: micromoles per kilogram
Description: <p>Total alkalinity from initial Gran titration</p>
http://lod.bco-dmo.org/id/dataset-parameter/918636.rdf
Name: DIC
Units: micromoles per kilogram
Description: <p>Dissolved Inorganic Carbon</p>
http://lod.bco-dmo.org/id/dataset-parameter/918637.rdf
Name: OrgAlk_from_Endpoint_Titration
Units: micromoles per kilogram
Description: <p>Organic Alkalinity at pH 4.5 from titration of carbonate-free sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/918638.rdf
Name: OrgAlk_from_Second_Gran_Titration
Units: micromoles per kilogram
Description: <p>Organic Alkalinity from Second Gran titration of carbonate-free sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/918639.rdf
Name: SiO2
Units: micromoles per liter
Description: <p>Silicate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/918640.rdf
Name: PO4
Units: micromoles per liter
Description: <p>Phosphate concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/918641.rdf
Name: X1T
Units: moles per kilogram
Description: <p>Modeled concentration of first organic functional group</p>
http://lod.bco-dmo.org/id/dataset-parameter/918642.rdf
Name: K1org
Units: unitless
Description: <p>Modeled dissociation constant of first organic functional group</p>
http://lod.bco-dmo.org/id/dataset-parameter/918643.rdf
Name: X2T
Units: moles per kilogram
Description: <p>Modeled concentration of second organic functional group</p>
http://lod.bco-dmo.org/id/dataset-parameter/918644.rdf
Name: K2org
Units: unitless
Description: <p>Modeled dissociation constant of second organic functional group</p>
http://lod.bco-dmo.org/id/dataset-parameter/918645.rdf
Name: X3T
Units: moles per kilogram
Description: <p>Modeled concentration of third organic functional group</p>
http://lod.bco-dmo.org/id/dataset-parameter/918646.rdf
Name: K3org
Units: unitless
Description: <p>Modeled dissociation constant of third organic functional group</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
14674
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/27c119f4-7fc3-43ab-8746-e5f1cfdaf55c/content
download
https://doi.org/10.26008/1912/bco-dmo.918545.1
download
onLine
dataset
<p>Sampling was conducted during day trips on Pleasant (Maine, USA) and St. John (New Brunswick, CA) estuaries in May and October 2018 and 2019.&nbsp;&nbsp;<br />
<br />
* See "Related Datasets" section for access to the related Underway Data described below.</p>
<p><em>Sample Collection:</em></p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Four surveys were conducted of both the Pleasant and St. John estuaries, in May and October 2018, and again in May and October 2019 in order to assess potential differences in estuary conditions between spring and fall seasons. Estuary samples were collected during single-day surveys on small vessels in each system, departing from Addison Maine for Pleasant estuary surveys and from St. John, New Brunswick, for St. John surveys. Estuary water was continuously pumped to an underway measurement system, which recorded location, salinity(Seabird SBE-45), water temperature (Seabird SBE-45), and the partial pressure of carbon dioxide (pCO<sub>2</sub>) among other parameters. Surveys were started on the incoming tide and lasted through high tide and into the ebb tide. At intervals determined from the underway salinity, surface water was captured for discrete sample collection. During the October 2017 and May 2018 surveys a Niskin bottle was lowered overboard by hand; during the later surveys a 10-liter high-density polyethylene (HDPE) carboy was rinsed and filled from the outflow of the underway system, then tightly capped until samples were drawn from a spout at the bottom of the carboy. River endmember samples were collected from above the final downstream dam on each river. For the Pleasant, this dam formed a physical tidal barrier, and the transition from river to estuary was immediate. For the St. John the closest site was in Fredericton New Brunswick, a location over 120 km from the estuary mouth along the river’s course. For both endmember sites, a plastic bucket was lowered from the center of a bridge over the river, rinsed three times with river water, and samples were collected as described above. The temperature and conductivity of samples were measured directly from the bucket with a handheld meter (YSI, Yellow Springs, Ohio).</p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Water from the Niskin or carboy was transferred without bubbling into individual, previously-flushed borosilicate glass BOD bottles: 500 mL for alkalinity and pH<sub>T</sub>&nbsp;analyses, and 300 mL for inorganic carbon (DIC) analysis. All bottles had greased stoppers and positive closure mechanisms, were filled to leave less than 1% headspace in the bottle, and were preserved with saturated mercuric chloride solution. Samples for silicate and phosphate analysis were filtered using a plastic syringe and 0.2 µm cartridge filter into acid-washed and previously-rinsed 50 mL HDPE vials and preserved with chloroform. Samples for DOC were filtered as was done for the nutrients into acid-washed and previously-rinsed 30 mL HDPE bottles. All samples were immediately placed on ice. Alkalinity, pH, and DIC samples were refrigerated until analysis; nutrient and DOC samples were frozen until analysis.<br />
<br />
Instruments:<br />
<br />
Discrete sample salinity was measured with a Guildline Portasal salinometer (Guildline, Smiths Falls Canada). The pHT of samples above pHT 7.0 was measured spectrophotometrically with meta-cresol purple (mCP), using 10 cm pathlength cylindrical glass cells and an Agilent Technologies Cary 8454 UV-Vis spectrometer.&nbsp; The same instrument was used to verify the response slope of a combination glass pH electrode (Metrohm EcoTode Plus). For samples of pHT less than 7.0, and therefore outside the working range of mCP, the initial electrode mV reading and zero-pHT intercept potential (E0) value determined from the AlkGran1 titration were used to calculate the pHT of the untitrated sample. DOC was measured with an uncertainty of 1.5 µmol kg-1 using a Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection. Nutrients including phosphate and silicate were analyzed using a SmartChem automated analyzer (Westco Scientific) according to standard colorimetric methods. The resulting measurement uncertainties were 0.8 µmol kg-1 and 0.25 µmol kg-1, respectively (Strickland and Parsons 1972). DIC was measured by acidifying each sample in a custom-built gas extraction system and measuring the evolved CO2 with a Picarro G5131-I cavity ringdown spectrometer (Picarro, Santa Clara CA).&nbsp;<br />
<br />
Alkalinity Titrations<br />
Total alkalinity and organic alkalinity titrations were conducted using a custom-built apparatus similar to that presented in Cai et al. (1998). This system performed several successive titrations on the same water sample. The total alkalinity was measured by Gran titration (AlkGran1) , followed by the carbonate-free alkalinity that was also measured using the Gran titration approach (AlkGran2), and finally the carbonate-free alkalinity was measured according to an endpoint approach at pHT 4.5 (Alk4.5).&nbsp; Samples were initially titrated from the initial pHT (pHi) to a pHT of 3.5, bubbled with nitrogen, then titrated to pHT 3.0 (AlkGran1).&nbsp; CO2-free NaOH was then added to return the sample to an alkaline pHi.&nbsp; The sample was then titrated to pHT 3.0 (AlkGran2).&nbsp; This process was then repeated, with the final titration ending at pHT 4.5 (Alk4.5).<br />
<br />
NaOH titrations<br />
We generally followed the methods presented by Cai et al. (1998), Song et al. (2020), and Kerr et al. (2023a) to estimate both organic functional group concentrations (XTi) and corresponding acid dissociation constants (pKai). Briefly, a sample was acidified to pHT 3.0 via Gran titration (AlkGran1), then automatically titrated stepwise under nitrogen with small additions of CO2-free NaOH from pHT 3.0 to pHT 8.5 or 10, resulting in several hundred sequential NaOH additions.</p>
Specified by the Principal Investigator(s)
* Sheet 1 of file "Hunt et al Organic Alkalinity Data.xlsx" was imported into the BCO-DMO data system with values "n/m" as missing data values.
** Missing data values are displayed differently based on the file format you download. They are blank in csv files, "NaN" in MatLab files, etc.
* Column names adjusted to conform to BCO-DMO naming conventions designed to support broad re-use by a variety of research tools and scripting languages. [Only numbers, letters, and underscores. Can not start with a number]
* ISO_DateTime_UTC in ISO 8601 format added as a colunn.
Specified by BCO-DMO Data Managers
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
SmartChem automated analyzer (Westco Scientific)
SmartChem automated analyzer (Westco Scientific)
PI Supplied Instrument Name: SmartChem automated analyzer (Westco Scientific) Instrument Name: Discrete Analyzer Instrument Short Name:Discrete Analyzer Instrument Description: Discrete analyzers utilize discrete reaction wells to mix and develop the colorimetric reaction, allowing for a wide variety of assays to be performed from one sample. These instruments are ideal for drinking water, wastewater, soil testing, environmental and university or research applications where multiple assays and high throughput are required.
PI Supplied Instrument Name: Instrument Name: Niskin bottle Instrument Short Name:Niskin bottle Instrument Description: A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24, or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
pH electrode (Metrohm EcoTode Plus)
pH electrode (Metrohm EcoTode Plus)
PI Supplied Instrument Name: pH electrode (Metrohm EcoTode Plus) Instrument Name: pH Sensor Instrument Short Name:pH Sensor Instrument Description: An instrument that measures the hydrogen ion activity in solutions.
The overall concentration of hydrogen ions is inversely related to its pH. The pH scale ranges from 0 to 14 and indicates whether acidic (more H+) or basic (less H+).
Guildline Portasal salinometer (Guildline, Smiths Falls Canada)
Guildline Portasal salinometer (Guildline, Smiths Falls Canada)
PI Supplied Instrument Name: Guildline Portasal salinometer (Guildline, Smiths Falls Canada) PI Supplied Instrument Description:Discrete sample salinity was measured with a Guildline Portasal salinometer (Guildline, Smiths Falls Canada). Instrument Name: Salinometer Instrument Short Name:Salinometer Instrument Description: A salinometer is a device designed to measure the salinity, or dissolved salt content, of a solution.
PI Supplied Instrument Name: PI Supplied Instrument Description:. Estuary water was continuously pumped to an underway measurement system, which recorded location, salinity(Seabird SBE-45), water temperature (Seabird SBE-45), and the partial pressure of carbon dioxide (pCO2) among other parameters. 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/
Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection
Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection
PI Supplied Instrument Name: Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection PI Supplied Instrument Description:DOC was measured with an uncertainty of 1.5 µmol kg-1 using a Shimadzu high temperature catalytic oxidation analyzer with chemiluminescent detection. Instrument Name: Shimadzu TOC-L Analyzer Instrument Short Name:Shimadzu TOC-L Instrument Description: A Shimadzu TOC-L Analyzer measures DOC by high temperature combustion method.
Developed by Shimadzu, the 680 degree C combustion catalytic oxidation method is now used worldwide. One of its most important features is the capacity to efficiently oxidize hard-to-decompose organic compounds, including insoluble and macromolecular organic compounds. The 680 degree C combustion catalytic oxidation method has been adopted for the TOC-L series.
http://www.shimadzu.com/an/toc/lab/toc-l2.html Community Standard Description: http://onto.nerc.ac.uk/CAST/124.html
Picarro G5131-I cavity ringdown spectrometer (Picarro, Santa Clara CA)
Picarro G5131-I cavity ringdown spectrometer (Picarro, Santa Clara CA)
PI Supplied Instrument Name: Picarro G5131-I cavity ringdown spectrometer (Picarro, Santa Clara CA) Instrument Name: Spectrometer Instrument Short Name:Spectrometer Instrument Description: A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0460/
Agilent Technologies Cary 8454 UV-Vis spectrometer
Agilent Technologies Cary 8454 UV-Vis spectrometer
PI Supplied Instrument Name: Agilent Technologies Cary 8454 UV-Vis spectrometer Instrument Name: Spectrometer Instrument Short Name:Spectrometer Instrument Description: A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. Community Standard Description: http://vocab.nerc.ac.uk/collection/L22/current/TOOL0460/
handheld meter (YSI, Yellow Springs, Ohio).
handheld meter (YSI, Yellow Springs, Ohio).
PI Supplied Instrument Name: handheld meter (YSI, Yellow Springs, Ohio). Instrument Name: Thermosalinograph Instrument Short Name:TSG Instrument Description: A thermosalinograph (TSG) is used to obtain a continuous record of sea surface temperature and salinity. On many research vessels the TSG is integrated into the ship's underway seawater sampling system and reported with the underway or alongtrack data. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/133/