http://lod.bco-dmo.org/id/dataset/768577 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 2019-05-24 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Discrete bottle sample measurements for carbonate chemistry from samples collected in the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from 2012 to 2015 2019-05-23 publication 2019-05-23 revision Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA) 2019-05-29 publication https://doi.org/10.1575/1912/bco-dmo.768577.1 Zhaohui Aleck Wang Woods Hole Oceanographic Institution principalInvestigator Meagan Eagle United States Geological Survey principalInvestigator Kevin Kroeger United States Geological Survey 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: Wang, Z. A., Gonneea, M., Kroeger, K. (2019) Discrete bottle sample measurements for carbonate chemistry from samples collected in the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from 2012 to 2015. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2019-05-23 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.768577.1 [access date] Discrete bottle sample measurements for carbonate chemistry Dataset Description: Methods and Sampling: &lt;p&gt;Samples were collected from the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA at approx. 41.5546N, 70.5071W.&lt;/p&gt; &lt;p&gt;Discrete bottle samples were collected at ~30 cm above the bottom of the tidal creek every 1-2 h at the sampling site using a peristaltic or diaphragm pump for periods of a full tidal cycle (~12–14 h). DIC collection and analysis followed standard best practice procedures outlined by Dickson et al. (2007). Samples were collected through purgeable capsule filters with 0.45 μm pore size (Farrwest Environmental Supply, Texas, USA) into 250 mL borosilicate bottles, poisoned with 100 uL saturated mercuric chloride, sealed with a glass stopper coated with APIEZON® – L grease, and se- cured with a rubber band.&lt;/p&gt; &lt;p&gt;DIC was analyzed using an Apollo SciTech DIC auto-analyzer (Model AS-C3), which uses a nondispersive infrared (NDIR) method. The sample is acidified with a 10% phosphoric acid in 10% sodium chloride solution, and CO2 is purged with high purity nitrogen gas and measured by a LI-COR 7000 infrared analyzer (LI-COR Environmental, Nebraska, USA). Certified Reference Material (CRM) from Dr. A. Dickson at Scripps Institution of Oceanography was used to calibrate the DIC auto-analyzer at least once daily. In addition, CRM was measured as a sample every few hours to gauge and correct any potential drift. The precision and accuracy of the instrument was ~ ±2.0 μmol kg-1.&lt;/p&gt; &lt;p&gt;TA was measured with an Apollo SciTech alkalinity auto-titrator (Model AS-ALK2), a Ross combination pH electrode and a pH meter (ORION 3 Star) to perform a modified Gran titration [Wang and Cai, 2004]. The electrode and concentration of hydrochloric acid was calibrated every day. The CRMs were also measured as samples every few hours to correct any potential small drift. The accuracy and precision of the instrument was about ± 2.0 μmol kg-1.&lt;/p&gt; &lt;p&gt;An EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) was submerged in the tidal creek to measure temperature and salinity. The YSI EXO2 recorded at intervals ranging from 2 min to 8 min. Reported YSI EXO2 sensor accuracy specifications are: 1% of the reading for salinity and 0.05 °C for temperature.&lt;/p&gt; Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1459521 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1459521 completed Zhaohui Aleck Wang Woods Hole Oceanographic Institution 508-289-3676 Marine Chemistry and Geochemistry MS #8 Woods Hole MA 02543 USA zawang@whoi.edu pointOfContact Meagan Eagle United States Geological Survey 508-457-2280 384 Woods Hole Rd Woods Hole MA 02543 USA meagle@usgs.gov pointOfContact Kevin Kroeger United States Geological Survey 508-457-2270 384 Woods Hole Rd Woods Hole MA 02543 USA kkroeger@usgs.gov pointOfContact asNeeded Dataset Version: 1 Unknown ISO_DateTime_UTC DIC TA TEMPERATURE SALINITY Apollo SciTech DIC auto-analyzer (Model AS-C3) ORION 3 Star pH meter LI-COR 7000 infrared analyzer peristaltic or diaphragm pump Apollo SciTech alkalinity auto-titrator (Model AS-ALK2) EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) theme None, User defined ISO_DateTime_UTC dissolved inorganic Carbon total alkalinity (TA) water temperature at measurement depth salinity featureType BCO-DMO Standard Parameters Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer Benchtop pH Meter LI-COR LI-7000 Gas Analyzer Pump Titrator YSI EXO multiparameter water quality sondes 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: The Paradox of Salt Marshes as a Source of Alkalinity and Low pH, High Carbon Dioxide Water to the Ocean: A First In-depth Study of A Diminishing Source https://osprey.bco-dmo.org/project/765032 Collaborative Research: The Paradox of Salt Marshes as a Source of Alkalinity and Low pH, High Carbon Dioxide Water to the Ocean: A First In-depth Study of A Diminishing Source <p><em>NSF Award Abstract:</em><br /> Carbon production in vegetated coastal systems such as marshes is among the highest in the biosphere. Resolving carbon production from marshes and assessing their impacts on coastal carbon cycling are critical to determining the long-term impacts of global change such as ocean acidification and eutrophication. In this project, researchers will use new methods to improve the assessment of carbon production from salt marshes. The overarching goals are to understand the role of coastal wetlands in altering carbonate chemistry, alkalinity, and carbon budgets of the coastal ocean, as well as their capacity to buffer against anthropogenically driven chemical changes, such as ocean acidification. This project will involve training for undergraduate, graduate, and postdoctoral researchers, and will provide educational opportunities for students from a local Native American tribe.</p> <p> Tidal water, after exchange with intertidal salt marshes, contains higher total alkalinity (TA), higher carbon dioxide, but lower pH. These highly productive, vegetated wetlands are deemed to export both alkalinity and dissolved inorganic carbon (DIC) to the ocean. This creates an apppartent paradox in that salt marshes are both an acidifying and alkalizing source to the ocean. Limited studies suggest that marsh DIC and alkalinity export fluxes may be a significant player in regional and global carbon budgets, but the current estimates are still far too uncertain to be conclusive. Unfortunately, tidal marsh ecosystems have dramatically diminished in the recent past, and are likely to diminish further due to sea level rise, land development, eutrophication, and other anthropogenic pressures. To assess the potential impacts of this future change, it is imperative to understand its current status and accurately evaluate its significatce to other parts of the carbon cycle. Similarly, little is know about the distinct sources of DIC and alkalinity being exported from marshes via tidal exchange, although aerobic and various anaerobic respiration processes have been indicated. In this study, researchers will undertake an in-depth study using new methods to vastly improve export fluxes from intertidal salt marshes through tidal exchange over minutes to annual scales, characterize and evaluate the compostiion (carbonate versus non-carbonate alkalinity) of marsh exported TA, the role and significance of the DOC pool in altering carbonate chemistry and export fluxes, identify sources of DIC being exported in tidal water, and investigate how marsh export of TA and DIC impacts carbonate chemistry and the carbon and alkalinity budgets in coastal waters.</p> Salt Marsh Paradox largerWorkCitation project eng; USA oceans -70.5071 -70.5071 41.5546 41.5546 2012-04-09 2015-12-16 Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA at approx. 41.5546N, -70.5071W 0 BCO-DMO catalogue of parameters from Discrete bottle sample measurements for carbonate chemistry from samples collected in the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from 2012 to 2015 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/768598.rdf Name: ISO_DateTime_UTC Units: unitless Description: <p>Date and time (UTC) formatted to ISO 8601 standard. Format: yyyy-mm-ddTHH:MM:SS</p> http://lod.bco-dmo.org/id/dataset-parameter/768601.rdf Name: DIC Units: micromoles per kilogram (umol kg-1) Description: <p>Dissolved inorganic carbon (DIC)</p> http://lod.bco-dmo.org/id/dataset-parameter/768602.rdf Name: TA Units: micromoles per kilogram (umol kg-1) Description: <p>Total alkalinity</p> http://lod.bco-dmo.org/id/dataset-parameter/768603.rdf Name: TEMPERATURE Units: degrees Celsius Description: <p>Water temperature</p> http://lod.bco-dmo.org/id/dataset-parameter/768604.rdf Name: SALINITY Units: practical salinity scale Description: <p>Water salinity</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 10428 https://darchive.mblwhoilibrary.org/bitstream/1912/24177/1/dataset-768577_salt-marsh-carbonate-chemistry__v1.tsv download https://doi.org/10.1575/1912/bco-dmo.768577.1 download onLine dataset &lt;p&gt;Samples were collected from the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA at approx. 41.5546N, 70.5071W.&lt;/p&gt; &lt;p&gt;Discrete bottle samples were collected at ~30 cm above the bottom of the tidal creek every 1-2 h at the sampling site using a peristaltic or diaphragm pump for periods of a full tidal cycle (~12–14 h). DIC collection and analysis followed standard best practice procedures outlined by Dickson et al. (2007). Samples were collected through purgeable capsule filters with 0.45 μm pore size (Farrwest Environmental Supply, Texas, USA) into 250 mL borosilicate bottles, poisoned with 100 uL saturated mercuric chloride, sealed with a glass stopper coated with APIEZON® – L grease, and se- cured with a rubber band.&lt;/p&gt; &lt;p&gt;DIC was analyzed using an Apollo SciTech DIC auto-analyzer (Model AS-C3), which uses a nondispersive infrared (NDIR) method. The sample is acidified with a 10% phosphoric acid in 10% sodium chloride solution, and CO2 is purged with high purity nitrogen gas and measured by a LI-COR 7000 infrared analyzer (LI-COR Environmental, Nebraska, USA). Certified Reference Material (CRM) from Dr. A. Dickson at Scripps Institution of Oceanography was used to calibrate the DIC auto-analyzer at least once daily. In addition, CRM was measured as a sample every few hours to gauge and correct any potential drift. The precision and accuracy of the instrument was ~ ±2.0 μmol kg-1.&lt;/p&gt; &lt;p&gt;TA was measured with an Apollo SciTech alkalinity auto-titrator (Model AS-ALK2), a Ross combination pH electrode and a pH meter (ORION 3 Star) to perform a modified Gran titration [Wang and Cai, 2004]. The electrode and concentration of hydrochloric acid was calibrated every day. The CRMs were also measured as samples every few hours to correct any potential small drift. The accuracy and precision of the instrument was about ± 2.0 μmol kg-1.&lt;/p&gt; &lt;p&gt;An EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) was submerged in the tidal creek to measure temperature and salinity. The YSI EXO2 recorded at intervals ranging from 2 min to 8 min. Reported YSI EXO2 sensor accuracy specifications are: 1% of the reading for salinity and 0.05 °C for temperature.&lt;/p&gt; Specified by the Principal Investigator(s) &lt;p&gt;All EXO2 sensors were cleaned and calibrated regularly according to manufacturer recommended methods to maintain performance, and antifouling measures were deployed including copper and automated wiping. After a deployment period of 2–4 weeks, YSI EXO2 data were evaluated for fouling and calibration drift. The YSI EXO2 was recalibrated and a correction factor based on calibration standards was applied linearly across the deployment as needed. A maximum correction up to ± 30% of the calibration value was allowed or otherwise discarded (Wagner et al., 2006). Salinity and temperature values were interpolated to match the same time as the bottle sample collection.&lt;/p&gt; &lt;p&gt;BCO-DMO Processing:&lt;br /&gt; - modified parameter names (replaced spaces with underscores; removed units of measurement);&lt;br /&gt; - formatted date/time to ISO format;&lt;br /&gt; - replaced blanks with &quot;nd&quot; (&quot;no data)&quot;.&lt;/p&gt; 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 Apollo SciTech DIC auto-analyzer (Model AS-C3) Apollo SciTech DIC auto-analyzer (Model AS-C3) PI Supplied Instrument Name: Apollo SciTech DIC auto-analyzer (Model AS-C3) Instrument Name: Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer Instrument Short Name:Apollo SciTech AS-C3 Instrument Description: A Dissolved Inorganic Carbon (DIC) analyzer, for use in aquatic carbon dioxide parameter analysis of coastal waters, sediment pore-waters, and time-series incubation samples. The analyzer consists of a solid state infrared CO2 detector, a mass-flow controller, and a digital pump for transferring accurate amounts of reagent and sample. The analyzer uses an electronic cooling system to keep the reactor temperature below 3 degrees Celsius, and a Nafion dry tube to reduce the water vapour and keep the analyzer drift-free and maintenance-free for longer. The analyzer can handle sample volumes from 0.1 - 1.5 milliliters, however the best results are obtained from sample volumes between 0.5 - 1 milliliters. It takes approximately 3 minutes per analysis, and measurement precision is plus or minus 2 micromoles per kilogram or higher for surface seawater. It is designed for both land based and shipboard laboratory use. ORION 3 Star pH meter ORION 3 Star pH meter PI Supplied Instrument Name: ORION 3 Star pH meter Instrument Name: Benchtop pH Meter Instrument Short Name:Benchtop pH Meter Instrument Description: An instrument consisting of an electronic voltmeter and pH-responsive electrode that gives a direct conversion of voltage differences to differences of pH at the measurement temperature. (McGraw-Hill Dictionary of Scientific and Technical Terms) This instrument does not map to the NERC instrument vocabulary term for 'pH Sensor' which measures values in the water column. Benchtop models are typically employed for stationary lab applications. LI-COR 7000 infrared analyzer LI-COR 7000 infrared analyzer PI Supplied Instrument Name: LI-COR 7000 infrared analyzer Instrument Name: LI-COR LI-7000 Gas Analyzer Instrument Short Name:LI-COR LI-7000 Instrument Description: The LI-7000 gas analyzer is a differential, single source, non-dispersive, infrared gas analyzer. It has two solid state detectors, one each for CO2 and H2O, filters at 4.255 microns and 2.595 microns respectively. CO2 is measured in the range 0-3000ppm, with an accuracy of 1 percent nominally. H2O is measured in the range 0-60 mmol per mol, with an accuracy of one 1 percent. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/382/ peristaltic or diaphragm pump peristaltic or diaphragm pump PI Supplied Instrument Name: peristaltic or diaphragm pump Instrument Name: Pump Instrument Short Name: Instrument Description: A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps Apollo SciTech alkalinity auto-titrator (Model AS-ALK2) Apollo SciTech alkalinity auto-titrator (Model AS-ALK2) PI Supplied Instrument Name: Apollo SciTech alkalinity auto-titrator (Model AS-ALK2) Instrument Name: Titrator Instrument Short Name:Titrator Instrument Description: Titrators are instruments that incrementally add quantified aliquots of a reagent to a sample until the end-point of a chemical reaction is reached. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB12/ EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) PI Supplied Instrument Name: EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) Instrument Name: YSI EXO multiparameter water quality sondes Instrument Short Name:YSI EXO Instrument Description: Comprehensive multi-parameter, water-quality monitoring sondes designed for long-term monitoring, profiling and spot sampling. The EXO sondes are split into several categories: EXO1 Sonde, EXO2 Sonde, EXO3 Sonde. Each category has a slightly different design purpose with the EXO2 and EXO3 containing more sensor ports than the EXO1. Data are collected using up to four user-replaceable sensors and an integral pressure transducer. Users communicate with the sonde via a field cable to an EXO Handheld, via Bluetooth wireless connection to a PC, or a USB connection to a PC. Typical parameter specifications for relevant sensors include dissolved oxygen with ranges of 0-50 mg/l, with a resolution of +/- 0.1 mg/l, an accuracy of 1 percent of reading for values between 0-20 mg/l and an accuracy of +/- 5 percent of reading for values 20-50 mg/l. Temp ranges are from-5 to +50 degC, with an accuracy of +/- 0.001 degC. Conductivity has a range of 0-200 mS/cm, with an accuracy of +/-0.5 percent of reading + 0.001 mS/cm and a resolution of 0.0001 - 0.01 mS/cm.