http://lod.bco-dmo.org/id/dataset/768607 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) Sensor measurements for dissolved inorganic carbon from the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from July to December 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.768607.1 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) Sensor measurements for dissolved inorganic carbon from the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from July to December 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.768607.1 [access date] Sensor measurements for dissolved inorganic carbon 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;In situ, high-frequency sensors for DIC and salinity were deployed at the mouth of the tidal creek in Sage Lot Pond at the latitude and longitude listed in the location above. DIC was measured with an autonomous sensor called CHANnelized Optical Sensor (CHANOS). 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. CHANOS was placed on a platform atop the marsh adjacent to the creek with the inlet pumping from the creek at the same depth and within 30 cm of the EXO2 Sonde. This setup avoided any interference by CHANOS on water flow in the creek. There is no significant concentration difference with depth in the creek (data not shown). In order to prevent fouling, sample water was filtered by a 100μm plastic disc filter (Keller Products, Acton, MA) followed by a copper mesh filter. CHANOS was powered by two 12 V batteries that were charged with two 250W solar panels (Renogy, Ontario, CA).&lt;/p&gt; &lt;p&gt;CHANOS uses spectrophotometric principles to measure DIC and pH using two independent channels (Wang et al., 2015). Briefly, CHANOS consisted of syringe pumps for delivery of reagents, junction boxes containing valves, thermistors, and optical and fluidic components for DIC and pH analysis, and an electronics housing, as well as reagent bags for storage of CRM, hydrochloric acid, reference solution, and pH- sensitive indicator solution. For this study, only [DIC] measurements were used. The DIC channel uses an improved spectrophotometric method described in detail in Wang et al. (2013) whereby a countercurrent flow configuration between acidified seawater and a pH-sensitive indicator solution in a tube-in-tube design achieves fast, continuous CO2 equilibration across highly CO2-permeable Teflon AF 2400 tubing. After CO2 exchange in the countercurrent flow cell, the indicator solution is directed into an optical cell for detection. Each measurement cycle is ~15min. The system achieved a precision of ~ ± 2.5 μmol kg-1 and an accuracy of ~ ± 5.0 μmol kg-1 during coastal deployments (Wang et al., 2015).&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 TEMPERATURE SALINITY CHANOSDIC CHANnelized Optical Sensor EXO2 Multiparameter Sonde (YSI Inc., Yellow Springs, OH) theme None, User defined date water temperature at measurement depth salinity dissolved inorganic Carbon featureType BCO-DMO Standard Parameters CHANnelized Optical Sensor 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 2015-07-07 2015-12-18 Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA at approx. 41.5546N, -70.5071W 0 BCO-DMO catalogue of parameters from Sensor measurements for dissolved inorganic carbon from the Sage Lot Pond salt marsh tidal creek in Waquoit Bay, MA from July to December 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/768620.rdf Name: ISO_DateTime_UTC Units: unitless Description: <p>Date and time (UTC) formatted to ISO8601 standard. Format: yyyy-mm-ddTHH:MM</p> http://lod.bco-dmo.org/id/dataset-parameter/768621.rdf Name: TEMPERATURE Units: degrees Celsius Description: <p>Water temperature</p> http://lod.bco-dmo.org/id/dataset-parameter/768622.rdf Name: SALINITY Units: practical salinity scale Description: <p>Water salinity</p> http://lod.bco-dmo.org/id/dataset-parameter/768623.rdf Name: CHANOSDIC Units: micromoles per kilogram (umol/kg) Description: <p>Dissolved inorganic carbon</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 139336 https://darchive.mblwhoilibrary.org/bitstream/1912/24178/1/dataset-768607_salt-marsh-continuous-dic__v1.tsv download https://doi.org/10.1575/1912/bco-dmo.768607.1 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;In situ, high-frequency sensors for DIC and salinity were deployed at the mouth of the tidal creek in Sage Lot Pond at the latitude and longitude listed in the location above. DIC was measured with an autonomous sensor called CHANnelized Optical Sensor (CHANOS). 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. CHANOS was placed on a platform atop the marsh adjacent to the creek with the inlet pumping from the creek at the same depth and within 30 cm of the EXO2 Sonde. This setup avoided any interference by CHANOS on water flow in the creek. There is no significant concentration difference with depth in the creek (data not shown). In order to prevent fouling, sample water was filtered by a 100μm plastic disc filter (Keller Products, Acton, MA) followed by a copper mesh filter. CHANOS was powered by two 12 V batteries that were charged with two 250W solar panels (Renogy, Ontario, CA).&lt;/p&gt; &lt;p&gt;CHANOS uses spectrophotometric principles to measure DIC and pH using two independent channels (Wang et al., 2015). Briefly, CHANOS consisted of syringe pumps for delivery of reagents, junction boxes containing valves, thermistors, and optical and fluidic components for DIC and pH analysis, and an electronics housing, as well as reagent bags for storage of CRM, hydrochloric acid, reference solution, and pH- sensitive indicator solution. For this study, only [DIC] measurements were used. The DIC channel uses an improved spectrophotometric method described in detail in Wang et al. (2013) whereby a countercurrent flow configuration between acidified seawater and a pH-sensitive indicator solution in a tube-in-tube design achieves fast, continuous CO2 equilibration across highly CO2-permeable Teflon AF 2400 tubing. After CO2 exchange in the countercurrent flow cell, the indicator solution is directed into an optical cell for detection. Each measurement cycle is ~15min. The system achieved a precision of ~ ± 2.5 μmol kg-1 and an accuracy of ~ ± 5.0 μmol kg-1 during coastal deployments (Wang et al., 2015).&lt;/p&gt; Specified by the Principal Investigator(s) &lt;p&gt;CHANOS was calibrated autonomously both in the laboratory and in situ with CRM over the range of temperatures at which field measurements were conducted. CHANOS [DIC] measurements were corrected based on discrete bottle samples. Discrete bottle samples were collected over 2–3 days during each CHANOS deployment in July and December 2015. Bottle samples were matched to CHANOS measurements taken within 8 min of each other. After correction, the mean residual between CHANOS and bottle measurements was 0 ± 44 μmol kg-1 with n = 30 and r2 = 0.86 for all points. Discrete bottle sample data and metadata are submitted in a separate dataset.&lt;/p&gt; &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 2015 data were evaluated for fouling and calibration drift, similar to Wang et al. (2016) YSI data from 2012 to 2014. 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 CHANOS measurement.&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; - converted original dates and times to ISO8601 format.&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 CHANnelized Optical Sensor CHANnelized Optical Sensor PI Supplied Instrument Name: CHANnelized Optical Sensor Instrument Name: CHANnelized Optical Sensor Instrument Short Name:CHANOS Instrument Description: CHANOS uses spectrophotometric principles to measure DIC and pH using two independent channels (Wang et al., 2015). Briefly, CHANOS consisted of syringe pumps for delivery of reagents, junction boxes containing valves, thermistors, and optical and fluidic components for DIC and pH analysis, and an electronics housing, as well as reagent bags for storage of CRM, hydrochloric acid, reference solution, and pH- sensitive indicator solution.  Refer to Wang et al. (2015) doi: 10.1021/es504893n 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.