http://lod.bco-dmo.org/id/dataset/896598
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
2023-05-25
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Dissolved inorganic carbon and total alkalinity fluxes from sediment incubation experiments during four R/V Pelican cruises to the Louisiana shelf in 2017 and 2018
2023-05-30
publication
2023-05-30
revision
Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)
2023-07-21
publication
https://doi.org/10.26008/1912/bco-dmo.896598.1
John Lehrter
University of South Alabama; and Dauphin Island Sea Lab
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: Lehrter, J., Fung, M., Hagemeyer, A. (2023) Dissolved inorganic carbon and total alkalinity fluxes from sediment incubation experiments during four R/V Pelican cruises to the Louisiana shelf in 2017 and 2018. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-05-30 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.896598.1 [access date]
Methods and Sampling: <p>At each site during the R/V Pelican cruises, a box corer was used to collect surface sediment. The box core was subsampled in triplicate using 40 cm acrylic tubes that were pushed into the sediment to refusal, i.e. 20-30 cm. Cores were extracted in the acrylic tubes, capped on the bottom with an acrylic cap and o-ring, and submerged in a dark incubator filled with bottom water collected at the site. Each core was carefully filled with <em>in situ </em>near bottom water with minimum disturbance to the sediment-water interface and closed to ensure no visible headspace or air bubbles at the top.&nbsp;The submerged cores were allowed to equilibrate with the water in the incubator for 12 hours. A control was included that was an acrylic liner filled with bottom water only. Following this equilibration step, the cores were capped on their tops with an acrylic cap and o-ring. The top caps contained two sampling ports that were opened to collect water samples from the water overlying the sediments in the core tubes.&nbsp;The overlying water was mixed by a slowly turning magnetic stir bar suspended from the top cap. All cores were attached to a reservoir containing bottom water for gravity driven replenishment of water inside the core tubes during sampling.&nbsp;After capping, sampling commenced.&nbsp;</p>
<p>Samples for DIC were taken every 4-8 hours for up to 23 hours (4-6 time points) from the four cores, i.e. one control core with bottom water only (identified as ‘Control’)&nbsp; and three cores with sediments and bottom water (identified as ‘Rep1’, ‘Rep2’, and ‘Rep3’).&nbsp; Dissolved inorganic carbon (DIC) and total alkalinity (TA) concentrations were analyzed in each sample by Wei Jun Cai’s lab at the University of Delaware. For DIC, 1 ml of water sample was measured in triplicate with an infrared CO2 detector-based DIC analyzer (AS-C3 Apollo Scitech). For TA, a 25 ml water sample was measured in duplicate with the open-cell Gran titration method using a temperature-controlled, semi-automated titrator (AS-ALK2 Apollo Scitech). Certified Reference Materials provided by A. G. Dickson, Scripps Institution of Oceanography, were analyzed for DIC and TA for quality control.&nbsp;</p>
<p><em>Detailed methods are provided in Wang et al. (2020) and Lehrter et al. (2012).&nbsp;&nbsp;</em></p>
<p><u>Problem report</u>: &nbsp;Data for a few time points are missing due to lost or broken sample containers.&nbsp; For 1801 C6, there is missing data, so assumed depths are presented based on the depths similar to the last sampling on cruise 1710 C6-2.&nbsp;&nbsp;</p>
<p>&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1760747 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1760747
completed
John Lehrter
University of South Alabama; and Dauphin Island Sea Lab
251-861-2141
Dauphin Island Sea Lab 102 Bienville Blvd
Mobile
AL
36528
USA
jlehrter@disl.org
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Cruise
Station
Latitude
Longitude
ISO_DateTime_UTC
Bottle_number
DIC_conc_volume
Salinity
Density
DIC_conc_weight
TA
Rep
DateTime_local
Overlying_Water_Depth
Bottom_Depth
CruiseStation
Date_Sediment_Collection
Comments
AS-ALK2 Apollo Scitec
Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer
box corer
temperature-controlled recirculating water bath incubator
theme
None, User defined
Cruise identfier
station
latitude
longitude
ISO_DateTime_UTC
bottle
dissolved inorganic Carbon
salinity
density
total alkalinity (TA)
replicate
Date and time
depth
depth_bottom
site
date
comments
featureType
BCO-DMO Standard Parameters
Apollo SciTech AS-ALK2 total alkalinity titrator
Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer
Box Corer
circulating water bath
instrument
BCO-DMO Standard Instruments
PE17-18
PE18-02
PE18-11
PE18-19
service
Deployment Activity
Cocodrie, Louisiana
Louisiana-Texas shelf waters in the Gulf of Mexico (27.5–29.6 N, 88.9–95.3 W)
Cocodrie, Louisiana
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: A RAPID response to Hurricane Harvey's impacts on coastal carbon cycle, metabolic balance and ocean acidification
https://osprey.bco-dmo.org/project/781457
Collaborative Research: A RAPID response to Hurricane Harvey's impacts on coastal carbon cycle, metabolic balance and ocean acidification
<p><em>NSF Award Abstract:</em><br />
Understanding how extreme events, like hurricanes, impact coastal ecosystems and the cycling of elements like carbon and oxygen, is important for improving our ability to predict how the global carbon cycle will respond to climate. This team of investigators, who have already been working together on understanding the carbon cycle in the Gulf of Mexico continental shelves, have important recent data against which to measure the effects of the passage of Hurricane Harvey in August, 2017. They will sample the waters and sediments of the northwestern Gulf of Mexico in September, October, and January to assess Harvey's impacts on a timescale of weeks to months.</p>
<p>The researchers pose three specific questions: 1. Will the region become a major source of carbon dioxide to the atmosphere, releasing carbon accumulated in the bottom water and sediments, and will this potential impact be faster and greater than during normal fall and winter mixing events? Will this process acidify the surface water and for how long? 2. Will the metabolic balance be substantially pushed toward net heterotrophy as a result of the storm in comparison to other years? 3. Can the amount of material delivered or redeposited across the continental shelf by a tropical cyclone be considerably larger than that related to winter storm systems? The PIs will measure water column nutrients, oxygen, organic carbon, and inorganic carbon system parameters; determine water column and benthic metabolic and nutrient flux rates; and sediment organic matter deposition rates. They will also collect end member river samples. They will compare the immediate (mid-Sept) but limited post-hurricane data and one-month post-hurricane, more detailed data with those collected in July and April to study the impacts of the storms. they will also compare 2017-2018 seasonal data to seasonal data over the same region collected in the past (2006-2008 and 2009-2010). They will also compare the impacts of Hurricane Harvey to those of Hurricanes Katrina and Rita (2005) and Tropical Storm Cindy (June 2017). The project will involve graduate and postdoctoral research and work to communicate results to the public.</p>
HarveyCarbonCycle
largerWorkCitation
project
eng; USA
oceans
Cocodrie, Louisiana; Louisiana-Texas shelf waters in the Gulf of Mexico (27.5–29.6 N, 88.9–95.3 W); Cocodrie, Louisiana
-94.29978
-90.48246
28.50066
28.8732
2017-04-05
2018-01-26
Northwestern Gulf of Mexico
0
BCO-DMO catalogue of parameters from Dissolved inorganic carbon and total alkalinity fluxes from sediment incubation experiments during four R/V Pelican cruises to the Louisiana shelf in 2017 and 2018
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/896642.rdf
Name: Cruise
Units: unitless
Description: <p>Cruise ID</p>
http://lod.bco-dmo.org/id/dataset-parameter/896643.rdf
Name: Station
Units: unitless
Description: <p>Station ID where samples were collected</p>
http://lod.bco-dmo.org/id/dataset-parameter/896644.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of station</p>
http://lod.bco-dmo.org/id/dataset-parameter/896645.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of station</p>
http://lod.bco-dmo.org/id/dataset-parameter/896646.rdf
Name: ISO_DateTime_UTC
Units: unitless
Description: <p>Datetime of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/896647.rdf
Name: Bottle_number
Units: unitless
Description: <p>Sample ID tracking bottle number for each cruise</p>
http://lod.bco-dmo.org/id/dataset-parameter/896648.rdf
Name: DIC_conc_volume
Units: micromoles per liter (umol/L)
Description: <p>DIC concentration (volumetric)</p>
http://lod.bco-dmo.org/id/dataset-parameter/896649.rdf
Name: Salinity
Units: unitless
Description: <p>Salinity of water sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/896650.rdf
Name: Density
Units: kilogram per liter (kg/L)
Description: <p>Density of water sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/896651.rdf
Name: DIC_conc_weight
Units: micromoles per kilogram (umol/kg)
Description: <p>DIC concentration (weight)</p>
http://lod.bco-dmo.org/id/dataset-parameter/896652.rdf
Name: TA
Units: micromoles per kilogram (umol/kg)
Description: <p>Total Alkalinity concentration</p>
http://lod.bco-dmo.org/id/dataset-parameter/896653.rdf
Name: Rep
Units: unitless
Description: <p>Sample replicate names where Rep 1, Rep 2, Rep 3 for sediment cores and Control for cores with bottom water only</p>
http://lod.bco-dmo.org/id/dataset-parameter/896654.rdf
Name: DateTime_local
Units: unitless
Description: <p>Local datetime of sampling</p>
http://lod.bco-dmo.org/id/dataset-parameter/896655.rdf
Name: Overlying_Water_Depth
Units: meters
Description: <p>Depth of the bottom water within the sampling tubes</p>
http://lod.bco-dmo.org/id/dataset-parameter/896656.rdf
Name: Bottom_Depth
Units: meters
Description: <p>Depth of the seafloor at sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/896657.rdf
Name: CruiseStation
Units: unitless
Description: <p>Cruise and Station ID combination</p>
http://lod.bco-dmo.org/id/dataset-parameter/896658.rdf
Name: Date_Sediment_Collection
Units: unitless
Description: <p>Date of sediment collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/896659.rdf
Name: Comments
Units: unitless
Description: <p>Comments</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
51225
https://darchive.mblwhoilibrary.org/server/api/core/bitstreams/02c7053d-4aa4-4741-b88e-e80bec3b8c08/content
download
https://doi.org/10.26008/1912/bco-dmo.896598.1
download
onLine
dataset
<p>At each site during the R/V Pelican cruises, a box corer was used to collect surface sediment. The box core was subsampled in triplicate using 40 cm acrylic tubes that were pushed into the sediment to refusal, i.e. 20-30 cm. Cores were extracted in the acrylic tubes, capped on the bottom with an acrylic cap and o-ring, and submerged in a dark incubator filled with bottom water collected at the site. Each core was carefully filled with <em>in situ </em>near bottom water with minimum disturbance to the sediment-water interface and closed to ensure no visible headspace or air bubbles at the top.&nbsp;The submerged cores were allowed to equilibrate with the water in the incubator for 12 hours. A control was included that was an acrylic liner filled with bottom water only. Following this equilibration step, the cores were capped on their tops with an acrylic cap and o-ring. The top caps contained two sampling ports that were opened to collect water samples from the water overlying the sediments in the core tubes.&nbsp;The overlying water was mixed by a slowly turning magnetic stir bar suspended from the top cap. All cores were attached to a reservoir containing bottom water for gravity driven replenishment of water inside the core tubes during sampling.&nbsp;After capping, sampling commenced.&nbsp;</p>
<p>Samples for DIC were taken every 4-8 hours for up to 23 hours (4-6 time points) from the four cores, i.e. one control core with bottom water only (identified as ‘Control’)&nbsp; and three cores with sediments and bottom water (identified as ‘Rep1’, ‘Rep2’, and ‘Rep3’).&nbsp; Dissolved inorganic carbon (DIC) and total alkalinity (TA) concentrations were analyzed in each sample by Wei Jun Cai’s lab at the University of Delaware. For DIC, 1 ml of water sample was measured in triplicate with an infrared CO2 detector-based DIC analyzer (AS-C3 Apollo Scitech). For TA, a 25 ml water sample was measured in duplicate with the open-cell Gran titration method using a temperature-controlled, semi-automated titrator (AS-ALK2 Apollo Scitech). Certified Reference Materials provided by A. G. Dickson, Scripps Institution of Oceanography, were analyzed for DIC and TA for quality control.&nbsp;</p>
<p><em>Detailed methods are provided in Wang et al. (2020) and Lehrter et al. (2012).&nbsp;&nbsp;</em></p>
<p><u>Problem report</u>: &nbsp;Data for a few time points are missing due to lost or broken sample containers.&nbsp; For 1801 C6, there is missing data, so assumed depths are presented based on the depths similar to the last sampling on cruise 1710 C6-2.&nbsp;&nbsp;</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
<p>Sediment-water exchanges, i.e., fluxes, were calculated based on the rate of change in the DIC concentrations over time.&nbsp; Slopes were calculated for the rate of change for each core with sediments and for the core with bottom water only. The net flux was then calculated as the difference between mean of the sediment core slopes and the control slope.</p>
<p>&nbsp;</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
AS-ALK2 Apollo Scitec
AS-ALK2 Apollo Scitec
PI Supplied Instrument Name: AS-ALK2 Apollo Scitec PI Supplied Instrument Description:For total alkalinity, a 25 ml water sample was measured in duplicate with the open-cell Gran titration method using a temperature-controlled, semi-automated titrator (AS-ALK2 Apollo Scitech). Instrument Name: Apollo SciTech AS-ALK2 total alkalinity titrator Instrument Short Name:Apollo SciTech AS-ALK2 Instrument Description: An automated acid-base titrator for use in aquatic carbon dioxide parameter analysis. The titrator provides standardisation and sample analysis, using the Gran titration procedure for alkalinity determination of seawater and brackish waters. It is designed for both shipboard and land based laboratory use. The precision of the instrument is 0.1 percent or higher, and sample volumes may range from 10-25 ml. Titration takes approximately 8 minutes per sample, and the repeatability is within plus or minus 1-2 micromoles per kg.
Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer
Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer
PI Supplied Instrument Name: Apollo SciTech AS-C3 Dissolved Inorganic Carbon (DIC) analyzer PI Supplied Instrument Description:For DIC, 1 milliliter of water sample was measured in triplicate with an infrared CO2 detector-based DIC analyzer (Apollo SciTech AS-C3 Dissolved Inorganic Carbon analyzer). 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.
box corer
box corer
PI Supplied Instrument Name: box corer PI Supplied Instrument Description:At each site, a box corer was used to collect surface sediment. Instrument Name: Box Corer Instrument Short Name:Box Corer Instrument Description: General description of a box corer:
A box corer is a marine geological tool that recovers undisturbed soft surface sediments. It is designed for minimum disturbance of the sediment surface by bow wave effects. Traditionally, it consists of a weighted stem fitted to a square sampling box. The corer is lowered vertically until it impacts with the seabed. At this point the instrument is triggered by a trip as the main coring stem passes through its frame. While pulling the corer out of the sediment a spade swings underneath the sample to prevent loss. When hauled back on board, the spade is under the box. (definition from the SeaVox Device Catalog)
Box corers are one of the simplest and most commonly used types of sediment corers. The stainless steel sampling box can contain a surface sediment block as large as 50cm x 50cm x 75cm with negligible disturbance. Once the sediment is recovered onboard, the sediment box can be detached from the frame and taken to a laboratory for subsampling and further analysis. The core sample size is controlled by the speed at which the corer is lowered into the ocean bottom. When the bottom is firm, a higher speed is required to obtain a complete sample. A depth pinger or other depth indicator is generally used to determine when the box is completely filled with sediment. Once the core box is filled with sediment, the sample is secured by moving the spade-closing lever arm to lower the cutting edge of the spade into the sediment, until the spade completely covers the bottom of the sediment box. (definition from Woods Hole Oceanographic Institution). Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/51/
temperature-controlled recirculating water bath incubator
temperature-controlled recirculating water bath incubator
PI Supplied Instrument Name: temperature-controlled recirculating water bath incubator PI Supplied Instrument Description:Immediately after collection, three incubation cores per station were immersed in a temperature-controlled recirculating water bath incubator adjusted to the recorded bottom water temperature. Instrument Name: circulating water bath Instrument Short Name: Instrument Description: A device designed to regulate the temperature of a vessel by bathing it in water held at the desired temperature. [Definition Source: NCI]
Cruise: PE17-18
PE17-18
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE17-18
Baoshan Chen
University of Delaware
Cruise: PE18-02
PE18-02
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE18-02
Wei-Jun Cai
University of Delaware
Cruise: PE18-11
PE18-11
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE18-11
Baoshan Chen
University of Delaware
Cruise: PE18-19
PE18-19
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel
PE18-19
Wei-Jun Cai
University of Delaware
R/V Pelican
Community Standard Description
International Council for the Exploration of the Sea
R/V Pelican
vessel