http://lod.bco-dmo.org/id/dataset/745997
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
2018-09-11
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Oxygen profiles from sediment core samples collected in the northern Gulf of Mexico, May 2017
2018-10-15
publication
2018-10-15
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2019-03-20
publication
https://doi.org/10.1575/1912/bco-dmo.745997.1
Dr David J. Burdige
Old Dominion University
principalInvestigator
Dr Matthew Long
Woods Hole Oceanographic Institution
principalInvestigator
Dr Richard C. Zimmerman
Old Dominion 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
documentDigital
Cite this dataset as: Burdige, D., Zimmerman, R., Long, M. (2018) Oxygen profiles from sediment core samples collected in the northern Gulf of Mexico, May 2017. Biological and Chemical Oceanography Data Management Office (BCO-DMO). Dataset version 2018-10-15 [if applicable, indicate subset used]. doi:10.1575/1912/bco-dmo.745997.1 [access date]
GoM oxygen profiles Dataset Description: <p>This dataset includes oxygen profiles from sediment core samples collected in the northern Gulf of Mexico in May 2017.</p> Acquisition Description: <p>Sediment cores were collected by divers, sealed in the field with rubber stoppers and returned to the lab for processing. Pore waters were collected by inserting rhizon samplers (Seeberg-Elverfeldt et al., 2005) through pre-drilled holes in the core tubes. Samples were collected in gas-tight glass syringes and filtered through 0.45 µm nylon filters into storage vials. Oxygen profiles in the cores were collected with polarographic microelectrodes (Luther et al., 2008) using a DLK 70 WebPstat electrochemical analyzer (AIS, Inc.) and a computer-controlled micro-profiler.</p>
<p>Note: 'sd' in this dataset means that the electrode signal deterioriated, likely due to sulfide interference.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1635403
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1633951 Award URL: http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1633951
completed
Dr David J. Burdige
Old Dominion University
757-683-4930
Dept. of Ocean, Earth and Atmospheric Sciences
Norfolk
VA
23529
USA
dburdige@odu.edu
pointOfContact
Dr Matthew Long
Woods Hole Oceanographic Institution
508-289-2798
Department of Marine Chemistry and Geochemistry MS #25, 266 Woods Hole Rd.
Woods Hole
MA
02543
USA
mlong@whoi.edu
pointOfContact
Dr Richard C. Zimmerman
Old Dominion University
757-683-5991
Department of Ocean, Earth and Atmospheric Sciences Old Dominion University
Norfolk
VA
23529
USA
rzimmerm@odu.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
site
lat
lon
core
profile
ISO_DateTime_Local_collected
ISO_DateTime_Local_scan
depth_cm
O2_uM
DLK 70 WebPstat electrochemical analyzer (AIS, Inc.)
theme
None, User defined
site
latitude
longitude
core id
replicate
date_local
depth core
dissolved Oxygen
featureType
BCO-DMO Standard Parameters
Oxygen Microelectrode Sensor
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.
Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2
https://www.bco-dmo.org/project/648649
Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2
<p>NSF abstract:</p>
<p>This research will develop a quantitative understanding of the factors controlling carbon cycling in seagrass meadows that will improve our ability to quantify their potential as blue carbon sinks and predict their future response to climate change, including sea level rise, ocean warming and ocean acidification. This project will advance a new generation of bio-optical-geochemical models and tools (ECHOES) that have the potential to be transform our ability to measure and predict carbon dynamics in shallow water systems.</p>
<p>This study will utilize cutting-edge methods for evaluating oxygen and carbon exchange (Eulerian and eddy covariance techniques) combined with biomass, sedimentary, and water column measurements to develop and test numerical models that can be scaled up to quantify the dynamics of carbon cycling and sequestration in seagrass meadows in temperate and tropical environments of the West Atlantic continental margin that encompass both siliciclastic and carbonate sediments. The comparative analysis across latitudinal and geochemical gradients will address the relative contributions of different species and geochemical processes to better constrain the role of seagrass carbon sequestration to global biogeochemical cycles. Specifically the research will quantify: (i) the relationship between C stocks and standing biomass for different species with different life histories and structural complexity, (ii) the influence of above- and below-ground metabolism on carbon exchange, and (iii) the influence of sediment type (siliciclastic vs. carbonate) on Blue Carbon storage. Seagrass biomass, growth rates, carbon content and isotope composition (above- and below-ground), organic carbon deposition and export will be measured. Sedimentation rates and isotopic composition of PIC, POC, and iron sulfide precipitates, as well as porewater concentrations of dissolved sulfide, CO2, alkalinity and salinity will be determined in order to develop a bio-optical-geochemical model that will predict the impact of seagrass metabolism on sediment geochemical processes that control carbon cycling in shallow waters. Model predictions will be validated against direct measurements of DIC and O2 exchange in seagrass meadows, enabling us to scale-up the density-dependent processes to predict the impacts of seagrass distribution and density on carbon cycling and sequestration across the submarine landscape.</p>
<p>Status, as of 09 June 2016: This project has been recommended for funding by NSF's Division of Ocean Sciences.</p>
Seagrass Blue Carbon
largerWorkCitation
project
eng; USA
oceans
-84.552
-84.456
29.853
29.907
2017-07-11
2017-07-20
Chesapeake Bay, Northern Gulf of Mexico, and Bahamas Banks
0
BCO-DMO catalogue of parameters from Oxygen profiles from sediment core samples collected in the northern Gulf of Mexico, May 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/746010.rdf
Name: site
Units: unitless
Description: sample collection site identifier
http://lod.bco-dmo.org/id/dataset-parameter/746011.rdf
Name: lat
Units: decimal degrees
Description: latitude; north is positive
http://lod.bco-dmo.org/id/dataset-parameter/746012.rdf
Name: lon
Units: decimal degrees
Description: longitude; east is positive
http://lod.bco-dmo.org/id/dataset-parameter/746013.rdf
Name: core
Units: unitless
Description: core number
http://lod.bco-dmo.org/id/dataset-parameter/746014.rdf
Name: profile
Units: unitless
Description: profile replicate identifier
http://lod.bco-dmo.org/id/dataset-parameter/746015.rdf
Name: ISO_DateTime_Local_collected
Units: unitless
Description: local date and time sample was collected; formatted as YYYY-MM-DDTHH:MM:SS (ISO 8601:2004€ )
http://lod.bco-dmo.org/id/dataset-parameter/746016.rdf
Name: ISO_DateTime_Local_scan
Units: unitless
Description: local date and time when oxygen profiling began; formatted as YYYY-MM-DDTHH:MM:SS (ISO 8601:2004€ )
http://lod.bco-dmo.org/id/dataset-parameter/746017.rdf
Name: depth_cm
Units: centimeters
Description: depth of oxygen reading within the core sample; bottom water refers to scan collected approximately 0.5 cm above the sediment surface
http://lod.bco-dmo.org/id/dataset-parameter/746018.rdf
Name: O2_uM
Units: microMoles
Description: dissolved oxygen concentration
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
https://www.bco-dmo.org/dataset/745997/data/download
download
onLine
dataset
<p>Sediment cores were collected by divers, sealed in the field with rubber stoppers and returned to the lab for processing. Pore waters were collected by inserting rhizon samplers (Seeberg-Elverfeldt et al., 2005) through pre-drilled holes in the core tubes. Samples were collected in gas-tight glass syringes and filtered through 0.45 µm nylon filters into storage vials. Oxygen profiles in the cores were collected with polarographic microelectrodes (Luther et al., 2008) using a DLK 70 WebPstat electrochemical analyzer (AIS, Inc.) and a computer-controlled micro-profiler.</p>
<p>Note: 'sd' in this dataset means that the electrode signal deterioriated, likely due to sulfide interference.</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
- added conventional header with dataset name, PI name, version date<br />
- modified parameter names to conform with BCO-DMO naming conventions<br />
- added columns for site, lat, and lon<br />
-&nbsp;reformatted collection date and time from m/d/yyyy H:MM to YYYY-MM-DDTHH:MM:SS (ISO 8601:2004E)-<br />
-&nbsp;transformed table to flat format by reproducing rows core, profile, datetime_collected and scanned to columns for each depth/O2 record<br />
-&nbsp;re-ordered records by site name<br />
- changed Spidercrab Bay core id's from SC* to SP*</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
DLK 70 WebPstat electrochemical analyzer (AIS, Inc.)
DLK 70 WebPstat electrochemical analyzer (AIS, Inc.)
PI Supplied Instrument Name: DLK 70 WebPstat electrochemical analyzer (AIS, Inc.) PI Supplied Instrument Description:Oxygen was measured with polarographic microelectrodes using a DLK 70 WebPstat electrochemical analyzer (AIS, Inc.) and a computer-controlled micro-profiler. Instrument Name: Oxygen Microelectrode Sensor Instrument Short Name:O2 microsensor Instrument Description: A miniaturized Clark-type dissolved oxygen instrument, including glass micro-sensors with minute tips (diameters ranging from 1 to 800 um). A gold or platinum sensing cathode is polarized against an internal reference and, driven by external partial pressure, oxygen from the environment penetrates through the sensor tip membrane and is reduced at the sensing cathode surface. A picoammeter converts the resulting reduction current to a signal. The size of the signal generated by the electrode is proportional to the flux of oxygen molecules to the cathode.The sensor also includes a polarized guard cathode, which scavenges oxygen in the electrolyte, thus minimizing zero-current and pre-polarization time.With the addition of a meter and a sample chamber, the respiration of a small specimen can be measured. Example: Strathkelvin Inst. http://www.strathkelvin.com Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/351/