http://lod.bco-dmo.org/id/dataset/840754
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
2021-02-15
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Porewater H2S from a multi-core sample taken on R/V Hugh Sharp cruise HRS1709 in the Chesapeake Bay in August 2017
2021-02-16
publication
2021-02-16
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2021-02-19
publication
https://doi.org/10.26008/1912/bco-dmo.840754.1
George W. Luther
University of Delaware
principalInvestigator
Bradley M. Tebo
Oregon Health & Science University
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: Luther, G. W., Tebo, B. M. (2021) Porewater H2S from a multi-core sample taken on R/V Hugh Sharp cruise HRS1709 in the Chesapeake Bay in August 2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2021-02-16 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.840754.1 [access date]
Porewater H2S Chesapeake Bay 2017 Dataset Description: Methods and Sampling: <p><strong><em>In situ </em></strong><strong>pump profiler cast</strong> refers to profiling with a pump profiler for O₂ and H₂S using solid state gold-amalgam electrodes for voltammetry (Luther et al, 2008; Analytical Instrument Systems DLK-60). Water was pumped aboard to make measurements on discrete samples for Mn and Fe speciation as well. See Hudson et al (2019) for more information.</p>
<p><strong>H₂</strong><strong>S</strong><br />
Sedimentary porewater H₂S methods (UV-Vis spectrophotometry) followed Luther et al. (2011).</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1558738 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1558738
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1558692 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1558692
completed
George W. Luther
University of Delaware
302-645-4208
700 Pilottown Road School of Marine Science and Policy
Lewes
DE
19958
USA
luther@udel.edu
pointOfContact
Bradley M. Tebo
Oregon Health & Science University
503-346-3438
Division of Environmental and Biomolecular Systems 20000 NW Walker Road
Beaverton
OR
97006
USA
tebob@ohsu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
cruise
cast
sample
date
local_time
ISO_DateTime_UTC
Latitude
Longitude
average_depth
H2S
infrared CO2 analyzer (AS-C3, Apollo Scitech)
In situ pump profiler
AS-ALK2 Apollo Scitech
theme
None, User defined
Cruise identfier
cast
sample identification
date
time of day
ISO_DateTime_UTC
latitude
longitude
depth core
H2S
featureType
BCO-DMO Standard Parameters
CO2 Analyzer
Pump
Titrator
instrument
BCO-DMO Standard Instruments
HRS1709
service
Deployment Activity
Chesapeake Bay
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.
Collaborative Research: Transformations of soluble Mn(III) along horizontal and vertical oxygen gradients
https://osprey.bco-dmo.org/project/715477
Collaborative Research: Transformations of soluble Mn(III) along horizontal and vertical oxygen gradients
<p><em>NSF Award Abstract:</em><br />
Manganese (Mn) is an important trace nutrient for biological growth in marine organisms. In the past, all Mn dissolved in seawater was thought to exist in only one chemical form: Mn(II). Recent work in waters and sediments with little or no oxygen has shown that Mn(III) can be the dominant form of dissolved Mn and can even be present in oxygenated water if attached to specific organic molecules called ligands. This research will further investigate these discoveries, aiming to quantify the chemical and microbiological processes responsible for Mn(III) cycling under varying oxygen concentrations. The research will compare field sites in the Broadkill River wetland, the Chesapeake Bay, and the Lower St. Lawrence Estuary; measuring the water column and sediments known to have strong oxygen gradients and different organic carbon sources that could change the availability and binding strength of ligands that would stabilize dissolved Mn(III). In some chemical forms, Mn tends to act like iron, so this research may have broader implications by helping marine chemists to understand more about iron cycling in similar oxygen gradients. With growing concerns over diminished oxygen concentrations (hypoxia) in the ocean, and particularly in coastal regions, understanding the reactions of Mn(III) with organic ligands across oxygen gradients could become important for understanding Mn availability to organisms. The project includes support for the participation and mentoring of one graduate student and two postdoctoral researchers, and there will be a U.S.-Canada collaboration. A variety of public outreach activities are planned with a K-12 teacher to be selected as a participant on a research cruise.</p>
<p>Mn(III) has only recently been recognized as an important redox state for Mn in seawater. Previously, it was widely accepted that all Mn that passes through a 0.2 or 0.4 µm filter is dissolved Mn(II) while the retained portion is solid Mn(III, IV) oxide. Research in the Black Sea, the Baltic Sea, and the Chesapeake Bay has shown that soluble Mn(III) can be up to 100% of the dissolved Mn in the water column. Also, Mn(III) can exist as complexes with organic ligands in oxygenated seawater. This project will quantify and constrain the mechanisms surrounding weak and strong Mn(III) ligand transformations across vertical and horizontal oxygen gradients. Field sites to be studied include systems with a variety of organic carbon sources and oxygen dynamics: the Lower St. Lawrence Estuary, Chesapeake Bay, and Broadkill River wetland estuary. This research will continue to inform the fundamental shift that is taking place in our current understanding of Mn biogeochemistry in coastal systems. The results should also be applicable to redox processes involving Fe(III) ligand transformations, since Mn and Fe tend to exhibit similar redox chemistry under similar environmental conditions.</p>
Manganese3
largerWorkCitation
project
eng; USA
oceans
Chesapeake Bay
-76.36735
-76.36735
38.97805
38.97805
2017-08-06
2017-08-06
Broadkill River wetland, the Chesapeake Bay, the Lower St. Lawrence Estuary, and of 9deg 50' N East Pacific Rise
0
BCO-DMO catalogue of parameters from Porewater H2S from a multi-core sample taken on R/V Hugh Sharp cruise HRS1709 in the Chesapeake Bay in August 2017
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/840854.rdf
Name: cruise
Units: unitless
Description: <p>Cruise identifier</p>
http://lod.bco-dmo.org/id/dataset-parameter/840855.rdf
Name: cast
Units: unitless
Description: <p>Cast number</p>
http://lod.bco-dmo.org/id/dataset-parameter/840856.rdf
Name: sample
Units: unitless
Description: <p>Sample number</p>
http://lod.bco-dmo.org/id/dataset-parameter/840857.rdf
Name: date
Units: unitless
Description: <p>Date of sample collection; format YYYY-mm-dd</p>
http://lod.bco-dmo.org/id/dataset-parameter/840858.rdf
Name: local_time
Units: unitless
Description: <p>Time of sample collection in the local time zone (US Eastern Daylight); format: hh:mm</p>
http://lod.bco-dmo.org/id/dataset-parameter/840859.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time of sample collection (UTC/GMT) formatted to ISO8601 standard: YYYY-mm-ddTHH:MMZ</p>
http://lod.bco-dmo.org/id/dataset-parameter/840860.rdf
Name: Latitude
Units: degrees North
Description: <p>Latitude in decimal degrees; positive values = North</p>
http://lod.bco-dmo.org/id/dataset-parameter/840861.rdf
Name: Longitude
Units: degrees East
Description: <p>Longitude in decimal degrees; negative value = West</p>
http://lod.bco-dmo.org/id/dataset-parameter/840862.rdf
Name: average_depth
Units: centimeters (cm)
Description: <p>Average depth of sediment porewater sample; filtered through 0.20 micrometer filters, sectioned and centrifuged in an argon filled glove bag</p>
http://lod.bco-dmo.org/id/dataset-parameter/840863.rdf
Name: H2S
Units: micromolar (uM)
Description: <p>H2S concentration</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
2009
https://darchive.mblwhoilibrary.org/bitstream/1912/26709/1/dataset-840754_porewater-h2s-chesapeake-bay-2017__v1.tsv
download
https://doi.org/10.26008/1912/bco-dmo.840754.1
download
onLine
dataset
<p><strong><em>In situ </em></strong><strong>pump profiler cast</strong> refers to profiling with a pump profiler for O₂ and H₂S using solid state gold-amalgam electrodes for voltammetry (Luther et al, 2008; Analytical Instrument Systems DLK-60). Water was pumped aboard to make measurements on discrete samples for Mn and Fe speciation as well. See Hudson et al (2019) for more information.</p>
<p><strong>H₂</strong><strong>S</strong><br />
Sedimentary porewater H₂S methods (UV-Vis spectrophotometry) followed Luther et al. (2011).</p>
Specified by the Principal Investigator(s)
<p><strong>Data Processing:</strong><br />
NM is used to indicate sensor not available or no measurement.</p>
<p><strong>BCO-DMO Processing:</strong><br />
- converted date field to YYYY-MM-DD format;<br />
- added date/time column in ISO8601 format (UTC/GMT);<br />
- converted latitude and longitude to decimal degrees from degrees and decimal minutes.</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
infrared CO2 analyzer (AS-C3, Apollo Scitech)
infrared CO2 analyzer (AS-C3, Apollo Scitech)
PI Supplied Instrument Name: infrared CO2 analyzer (AS-C3, Apollo Scitech) Instrument Name: CO2 Analyzer Instrument Short Name:CO2 Analyzer Instrument Description: Measures atmospheric carbon dioxide (CO2) concentration. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/382/
In situ pump profiler
In situ pump profiler
PI Supplied Instrument Name: In situ pump profiler PI Supplied Instrument Description:Profiling was conducted with a pump profiler for using solid state gold-amalgam electrodes for voltammetry (Luther et al, 2008; Analytical Instrument Systems DLK-60). See Hudson et al (2019), doi: 10.1016/j.talanta.2019.02.076. 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
AS-ALK2 Apollo Scitech
AS-ALK2 Apollo Scitech
PI Supplied Instrument Name: AS-ALK2 Apollo Scitech 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/
Cruise: HRS1709
HRS1709
R/V Hugh R. Sharp
Community Standard Description
International Council for the Exploration of the Sea
R/V Hugh R. Sharp
vessel
HRS1709
George W. Luther
University of Delaware
R/V Hugh R. Sharp
Community Standard Description
International Council for the Exploration of the Sea
R/V Hugh R. Sharp
vessel