bcodmo_dataset_904417_v2
eng
UTF8
dataset
service
Adam Shepherd
BCO-DMO
508-289-2772
266 Woods Hole Rd. MS#36
Woods Hole
MA
02543
USA
erddap@bco-dmo.org
pointOfContact
2026-07-03
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
2
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[Northern Gulf of Mexico pore geochemical data] - Depth profiles of pore water constituents from sediment cores collected on the Louisiana Shelf of the Northern Gulf of Mexico during 2020, 2021, and 2022 on R/V Savannah cruises SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, and SAV-22-11 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins)
2026-07-03
creation
erddap.bco-dmo.org
bcodmo_dataset_904417_v2
BCO-DMO
info@bco-dmo.org
https://osprey.bco-dmo.org/dataset/904417
information
web browser
Background Information
Background information from the source
information
originator
This data set reports depth profiles of pore water concentrations of dissolved inorganic carbon (DIC), orthophosphate (PO43-), ammonium (NH4+), total alkalinity (TA), carbon isotopic fractionation of DIC (13C-DIC), dissolved manganese (Mnd), dissolved calcium (Cad), reduced iron (Fe(II)), total dissolved Fe (Fed), and dissolved Fe(III) (Fe(III)d) by the difference of total dissolved Fe and Fe(II). Data were collected during five R/V Savannah cruises in fall 2020, summer and fall 2021, and fall and spring 2022. On each cruise pore water data were obtained from sediment cores collected with an MC-800 multi-corer at multiple stations. Cruise IDs were: SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, SAV-22-11.
All cores were processed within a few hours after collection. The pore waters were first extracted by slicing sediment cores of < 40 centimeters (cm) long and centrifugation of the pore waters under N2 atmosphere to avoid air contamination. Pore waters were then immediately filtered through 0.22-micrometer (um) PSE syringe filters under N2 atmosphere and either analyzed immediately onboard (Fe speciation, orthophosphate, DIC), preserved acidified with hydrochloric acid at 4 degrees Celsius (Cad, Mnd), frozen (ammonium), or preserved at 4 degrees Celsius after addition of HgCl2 (TA) until analysis. In addition, samples for TA and carbon isotopic analyses were preserved in glass bottles, whereas other samples were preserved in polypropylene containers.
DIC was analyzed by flow injection analysis (Hall and Aller, 1992), orthophosphate, ammonium, and Fe speciation by spectrophotometry (Murphy and Riley, 1962; Strickland and Parsons, 1972; Stookey, 1970), TA by Gran titration (Gran, 1952), the carbon isotopic signature by isotope ratio mass spectrometry (Wang et al, 2018), and Mnd and Cad by ICP-MS (Magette et al., 2025 In preparation).
BCO-DMO
info@bco-dmo.org
https://osprey.bco-dmo.org/dataset/904417
information
web browser
Background Information
Background information from the source
information
pointOfContact
earth science
atmosphere
ocean
biosphere
biology
environment
theme
BCO-DMO
project
longitude
latitude
theme
CF
The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
BCO-DMO
largerWorkCitation
project
eng
geoscientificInformation
1
-91.33712
-88.60532
28.19917
28.94785
[Northern Gulf of Mexico pore geochemical data] - Depth profiles of pore water constituents from sediment cores collected on the Louisiana Shelf of the Northern Gulf of Mexico during 2020, 2021, and 2022 on R/V Savannah cruises SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, and SAV-22-11 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins)
2026-07-03
creation
BCO-DMO
info@bco-dmo.org
https://osprey.bco-dmo.org/dataset/904417
information
web browser
Background Information
Background information from the source
information
originator
This data set reports depth profiles of pore water concentrations of dissolved inorganic carbon (DIC), orthophosphate (PO43-), ammonium (NH4+), total alkalinity (TA), carbon isotopic fractionation of DIC (13C-DIC), dissolved manganese (Mnd), dissolved calcium (Cad), reduced iron (Fe(II)), total dissolved Fe (Fed), and dissolved Fe(III) (Fe(III)d) by the difference of total dissolved Fe and Fe(II). Data were collected during five R/V Savannah cruises in fall 2020, summer and fall 2021, and fall and spring 2022. On each cruise pore water data were obtained from sediment cores collected with an MC-800 multi-corer at multiple stations. Cruise IDs were: SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, SAV-22-11.
All cores were processed within a few hours after collection. The pore waters were first extracted by slicing sediment cores of < 40 centimeters (cm) long and centrifugation of the pore waters under N2 atmosphere to avoid air contamination. Pore waters were then immediately filtered through 0.22-micrometer (um) PSE syringe filters under N2 atmosphere and either analyzed immediately onboard (Fe speciation, orthophosphate, DIC), preserved acidified with hydrochloric acid at 4 degrees Celsius (Cad, Mnd), frozen (ammonium), or preserved at 4 degrees Celsius after addition of HgCl2 (TA) until analysis. In addition, samples for TA and carbon isotopic analyses were preserved in glass bottles, whereas other samples were preserved in polypropylene containers.
DIC was analyzed by flow injection analysis (Hall and Aller, 1992), orthophosphate, ammonium, and Fe speciation by spectrophotometry (Murphy and Riley, 1962; Strickland and Parsons, 1972; Stookey, 1970), TA by Gran titration (Gran, 1952), the carbon isotopic signature by isotope ratio mass spectrometry (Wang et al, 2018), and Mnd and Cad by ICP-MS (Magette et al., 2025 In preparation).
ERDDAP tabledap
1
-91.33712
-88.60532
28.19917
28.94785
tight
ERDDAPtabledapDatasetQueryAndAccess
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_904417_v2
ERDDAP:tabledap
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ERDDAP's tabledap service (a flavor of OPeNDAP) for tabular (sequence) data. Add different extensions (e.g., .html, .graph, .das, .dds) to the base URL for different purposes.
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[Northern Gulf of Mexico pore geochemical data] - Depth profiles of pore water constituents from sediment cores collected on the Louisiana Shelf of the Northern Gulf of Mexico during 2020, 2021, and 2022 on R/V Savannah cruises SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, and SAV-22-11 (Importance of Riverine Discharge on the Benthic Flux of Alkalinity to Continental Margins)
2026-07-03
creation
BCO-DMO
info@bco-dmo.org
https://osprey.bco-dmo.org/dataset/904417
information
web browser
Background Information
Background information from the source
information
originator
This data set reports depth profiles of pore water concentrations of dissolved inorganic carbon (DIC), orthophosphate (PO43-), ammonium (NH4+), total alkalinity (TA), carbon isotopic fractionation of DIC (13C-DIC), dissolved manganese (Mnd), dissolved calcium (Cad), reduced iron (Fe(II)), total dissolved Fe (Fed), and dissolved Fe(III) (Fe(III)d) by the difference of total dissolved Fe and Fe(II). Data were collected during five R/V Savannah cruises in fall 2020, summer and fall 2021, and fall and spring 2022. On each cruise pore water data were obtained from sediment cores collected with an MC-800 multi-corer at multiple stations. Cruise IDs were: SAV-20-07, SAV-21-25, SAV-21-24, SAV-22-06, SAV-22-11.
All cores were processed within a few hours after collection. The pore waters were first extracted by slicing sediment cores of < 40 centimeters (cm) long and centrifugation of the pore waters under N2 atmosphere to avoid air contamination. Pore waters were then immediately filtered through 0.22-micrometer (um) PSE syringe filters under N2 atmosphere and either analyzed immediately onboard (Fe speciation, orthophosphate, DIC), preserved acidified with hydrochloric acid at 4 degrees Celsius (Cad, Mnd), frozen (ammonium), or preserved at 4 degrees Celsius after addition of HgCl2 (TA) until analysis. In addition, samples for TA and carbon isotopic analyses were preserved in glass bottles, whereas other samples were preserved in polypropylene containers.
DIC was analyzed by flow injection analysis (Hall and Aller, 1992), orthophosphate, ammonium, and Fe speciation by spectrophotometry (Murphy and Riley, 1962; Strickland and Parsons, 1972; Stookey, 1970), TA by Gran titration (Gran, 1952), the carbon isotopic signature by isotope ratio mass spectrometry (Wang et al, 2018), and Mnd and Cad by ICP-MS (Magette et al., 2025 In preparation).
OPeNDAP
1
-91.33712
-88.60532
28.19917
28.94785
tight
OPeNDAPDatasetQueryAndAccess
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_904417_v2
OPeNDAP:OPeNDAP
OPeNDAP
An OPeNDAP service for tabular (sequence) data. Add different extensions (e.g., .html, .das, .dds) to the base URL for different purposes.
download
physicalMeasurement
Year
String
Year
Month
String
Month
Day
String
Day
Date
String
Date
Collection_Type
String
Collection_type
Station
String
Station
sample_ID
int
Sample_id
Sediment_depth_cm
float
Sediment_depth_cm
DIC
float
Dic
sd_DIC
float
Sd_dic
PO4
float
Po4
sd_PO4
float
Sd_po4
NH4
float
Nh4
sd_NH4
float
Sd_nh4
TA
float
Ta
sd_TA
float
Sd_ta
d13C_DIC
float
D13c_dic
sd_d13C_DIC
float
Sd_d13c_dic
Mnd
float
Mnd
sd_Mnd
float
Sd_mnd
Cad
float
Cad
sd_Cad
float
Sd_cad
Fe_II
float
Fe_ii
sd_Fe_II
float
Sd_fe_ii
Fed
float
Fed
sd_Fed
float
Sd_fed
Fe_III_d
float
Fe_iii_d
sd_Fe_III_d
float
Sd_fe_iii_d
Adam Shepherd
BCO-DMO
508-289-2772
266 Woods Hole Rd. MS#36
Woods Hole
MA
02543
USA
erddap@bco-dmo.org
distributor
OPeNDAP
DAP/2.0
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_904417_v2.html
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Data Subset Form
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download
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_904417_v2.graph
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mapDigital
This record was created from dataset metadata by ERDDAP Version 2.22