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Dataset Title:	[Porewater geochemical data from mainstem Chesapeake Bay in July 2022] - Porewater geochemical data from sediment cores collected at methane seeps and reference sites in mainstem Chesapeake Bay in July 2022 (Collaborative Research: Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean)
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_1005742_v1)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
Sample_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"CB22_PW001"	"CB22_PW173"
Site_Name (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Bay Bridge"	"Tangier"
Station_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"CB22-01"	"CB22-14"
latitude (Latitude_ddeg, degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		37.20699	39.27924
longitude (Longitude_ddeg, degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-76.44807	-75.93867
Sampling_Date (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"2022-07-25"	"2022-07-29"
Water_Depth_m (meters (m))	!= =~ <= >= = < >		!= =~ <= >= = < >		5.0	40.0
Core_Allocation (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Geochem"	"Geochem"
Sediment_Depth_cmbsf (centimeters below sea floor (cmbsf))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	105.5
Sediment_interval_thickness_cm (centimeters (cm))	!= =~ <= >= = < >		!= =~ <= >= = < >		5	5
Sulfate_mM (millimolar (mM))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.04636985	22.627
Chloride_mM (millimolar (mM))	!= =~ <= >= = < >		!= =~ <= >= = < >		69.04705	448.4458
DIC_mM (millimolar (mM))	!= =~ <= >= = < >		!= =~ <= >= = < >		1.957228	36.11289
d13C_DIC_permille (per mille (‰))	!= =~ <= >= = < >		!= =~ <= >= = < >		-25.34639	6.406601
Porosity (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		30.0	86.2
CH4_uM (micromolar (uM))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.6066624	14029.63
d13C_CH4_permille (per mille (‰))	!= =~ <= >= = < >		!= =~ <= >= = < >		-115.7318	-21.98884
d13C_CH4_1sigma (per mille (‰))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	9.855847
CO2_mM (millimolar (mM))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.4144787	52.45688
d13C_CO2_permille (per mille (‰))	!= =~ <= >= = < >		!= =~ <= >= = < >		-26.14635	7.735312
d13C_CO2_1sigma (per mille (‰))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	1.23588
DOC_mM (millimolar (mM))	!= =~ <= >= = < >		!= =~ <= >= = < >		0.211516	2.265527
d13C_DOC_permille (per mille (‰))	!= =~ <= >= = < >		!= =~ <= >= = < >		-32.4	-27.65
Comment (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"AgNO3 test sample"	"AgNO3 test sample"

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" Sample_ID Site_Name Station_ID latitude longitude Sampling_Date Water_Depth_m Core_Allocation Sediment_Depth_cmbsf Sediment_interval_thickness_cm Sulfate_mM Chloride_mM DIC_mM d13C_DIC_permille Porosity CH4_uM d13C_CH4_permille d13C_CH4_1sigma CO2_mM d13C_CO2_permille d13C_CO2_1sigma DOC_mM d13C_DOC_permille Comment Sample_ID Site_Name Station_ID latitude longitude Sampling_Date Water_Depth_m Core_Allocation Sediment_Depth_cmbsf Sediment_interval_thickness_cm Sulfate_mM Chloride_mM DIC_mM d13C_DIC_permille Porosity CH4_uM d13C_CH4_permille d13C_CH4_1sigma CO2_mM d13C_CO2_permille d13C_CO2_1sigma DOC_mM d13C_DOC_permille Comment Sample_ID Site_Name Station_ID latitude longitude Sampling_Date Water_Depth_m Core_Allocation Sediment_Depth_cmbsf Sediment_interval_thickness_cm Sulfate_mM Chloride_mM DIC_mM d13C_DIC_permille Porosity CH4_uM d13C_CH4_permille d13C_CH4_1sigma CO2_mM d13C_CO2_permille d13C_CO2_1sigma DOC_mM d13C_DOC_permille Comment Sample_ID Site_Name Station_ID latitude longitude Sampling_Date Water_Depth_m Core_Allocation Sediment_Depth_cmbsf Sediment_interval_thickness_cm Sulfate_mM Chloride_mM DIC_mM d13C_DIC_permille Porosity CH4_uM d13C_CH4_permille d13C_CH4_1sigma CO2_mM d13C_CO2_permille d13C_CO2_1sigma DOC_mM d13C_DOC_permille Comment Sample_ID Site_Name Station_ID latitude longitude Sampling_Date Water_Depth_m Core_Allocation Sediment_Depth_cmbsf Sediment_interval_thickness_cm Sulfate_mM Chloride_mM DIC_mM d13C_DIC_permille Porosity CH4_uM d13C_CH4_permille d13C_CH4_1sigma CO2_mM d13C_CO2_permille d13C_CO2_1sigma DOC_mM d13C_DOC_permille Comment ")

File type: (more information) .asc - View OPeNDAP-style ISO-8859-1 comma-separated text. .csv - Download a ISO-8859-1 comma-separated text table (line 1: names; line 2: units; ISO 8601 times). .csvp - Download a ISO-8859-1 .csv file with line 1: name (units). Times are ISO 8601 strings. .csv0 - Download a ISO-8859-1 .csv file without column names or units. Times are ISO 8601 strings. .dataTable - A JSON file formatted for use with the Google Visualization client library (Google Charts). .das - View the dataset's metadata via an ISO-8859-1 OPeNDAP Dataset Attribute Structure (DAS). .dds - View the dataset's structure via an ISO-8859-1 OPeNDAP Dataset Descriptor Structure (DDS). .dods - OPeNDAP clients use this to download the data in the DODS binary format. .esriCsv - Download a ISO_8859_1 .csv file for ESRI's ArcGIS 9.x and below (separate date and time columns). .fgdc - View the dataset's UTF-8 FGDC .xml metadata. .geoJson - Download longitude,latitude,otherColumns data as a UTF-8 GeoJSON .json file. .graph - View a Make A Graph web page. .help - View a web page with a description of tabledap. .html - View an OPeNDAP-style HTML Data Access Form. .htmlTable - View a UTF-8 .html web page with the data in a table. Times are ISO 8601 strings. .iso19115 - View the dataset's ISO 19115-2/19139 UTF-8 .xml metadata. .itx - Download an ISO-8859-1 Igor Text File. Each response column becomes a wave. .json - View a table-like UTF-8 JSON file (missing value = 'null'; times are ISO 8601 strings). .jsonlCSV1 - View a UTF-8 JSON Lines CSV file with column names on line 1 (mv = 'null'; times are ISO 8601 strings). .jsonlCSV - View a UTF-8 JSON Lines CSV file without column names (mv = 'null'; times are ISO 8601 strings). .jsonlKVP - View a UTF-8 JSON Lines file with Key:Value pairs (missing value = 'null'; times are ISO 8601 strings). .mat - Download a MATLAB binary file. .nc - Download a flat, table-like, NetCDF-3 binary file with COARDS/CF/ACDD metadata. .ncHeader - View the UTF-8 header (the metadata) for the NetCDF-3 .nc file. .ncCF - Download a NetCDF-3 CF Discrete Sampling Geometries file (Contiguous Ragged Array). .ncCFHeader - View the UTF-8 header (the metadata) for the .ncCF file. .ncCFMA - Download a NetCDF-3 CF Discrete Sampling Geometries file (Multidimensional Array). .ncCFMAHeader - View the UTF-8 header (the metadata) for the .ncCFMA file. .nccsv - Download a NetCDF-3-like 7-bit ASCII NCCSV .csv file with COARDS/CF/ACDD metadata. .nccsvMetadata - View the dataset's metadata as the top half of a 7-bit ASCII NCCSV .csv file. .ncoJson - Download a UTF-8 NCO lvl=2 JSON file with COARDS/CF/ACDD metadata. .odvTxt - Download longitude,latitude,time,otherColumns as an ISO-8859-1 ODV Generic Spreadsheet File (.txt). .subset - View an HTML form which uses faceted search to simplify picking subsets of the data. .tsv - Download a ISO-8859-1 tab-separated text table (line 1: names; line 2: units; ISO 8601 times). .tsvp - Download a ISO-8859-1 .tsv file with line 1: name (units). Times are ISO 8601 strings. .tsv0 - Download a ISO-8859-1 .tsv file without column names or units. Times are ISO 8601 strings. .wav - Download a .wav audio file. All columns must be numeric and of the same type. .xhtml - View a UTF-8 XHTML (XML) file with the data in a table. Times are ISO 8601 strings. .kml - View a .kml file, suitable for Google Earth. .smallPdf - View a small .pdf image file with a graph or map. .pdf - View a standard, medium-sized .pdf image file with a graph or map. .largePdf - View a large .pdf image file with a graph or map. .smallPng - View a small .png image file with a graph or map. .png - View a standard, medium-sized .png image file with a graph or map. .largePng - View a large .png image file with a graph or map. .transparentPng - View a .png image file (just the data, without axes, landmask, or legend).

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  Sample_ID {
    String long_name "Sample_id";
    String units "unitless";
  }
  Site_Name {
    String long_name "Site_name";
    String units "unitless";
  }
  Station_ID {
    String long_name "Station_id";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 37.20699, 39.27924;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude_ddeg";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -76.44807, -75.93867;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude_ddeg";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Sampling_Date {
    String long_name "Sampling_date";
    String units "unitless";
  }
  Water_Depth_m {
    Float32 actual_range 5.0, 40.0;
    String long_name "Water_depth_m";
    String units "meters (m)";
  }
  Core_Allocation {
    String long_name "Core_allocation";
    String units "unitless";
  }
  Sediment_Depth_cmbsf {
    Float32 actual_range 0.0, 105.5;
    String long_name "Sediment_depth_cmbsf";
    String units "centimeters below sea floor (cmbsf)";
  }
  Sediment_interval_thickness_cm {
    Int32 actual_range 5, 5;
    String long_name "Sediment_interval_thickness_cm";
    String units "centimeters (cm)";
  }
  Sulfate_mM {
    Float32 actual_range 0.04636985, 22.627;
    String long_name "Sulfate_mm";
    String units "millimolar (mM)";
  }
  Chloride_mM {
    Float32 actual_range 69.04705, 448.4458;
    String long_name "Chloride_mm";
    String units "millimolar (mM)";
  }
  DIC_mM {
    Float32 actual_range 1.957228, 36.11289;
    String long_name "Dic_mm";
    String units "millimolar (mM)";
  }
  d13C_DIC_permille {
    Float32 actual_range -25.34639, 6.406601;
    String long_name "D13c_dic_permille";
    String units "per mille (‰)";
  }
  Porosity {
    Float32 actual_range 30.0, 86.2;
    String long_name "Porosity";
    String units "unitless";
  }
  CH4_uM {
    Float32 actual_range 0.6066624, 14029.63;
    String long_name "Ch4_um";
    String units "micromolar (uM)";
  }
  d13C_CH4_permille {
    Float32 actual_range -115.7318, -21.98884;
    String long_name "D13c_ch4_permille";
    String units "per mille (‰)";
  }
  d13C_CH4_1sigma {
    Float32 actual_range 0.0, 9.855847;
    String long_name "D13c_ch4_1sigma";
    String units "per mille (‰)";
  }
  CO2_mM {
    Float32 actual_range 0.4144787, 52.45688;
    String long_name "Co2_mm";
    String units "millimolar (mM)";
  }
  d13C_CO2_permille {
    Float32 actual_range -26.14635, 7.735312;
    String long_name "D13c_co2_permille";
    String units "per mille (‰)";
  }
  d13C_CO2_1sigma {
    Float32 actual_range 0.0, 1.23588;
    String long_name "D13c_co2_1sigma";
    String units "per mille (‰)";
  }
  DOC_mM {
    Float32 actual_range 0.211516, 2.265527;
    String long_name "Doc_mm";
    String units "millimolar (mM)";
  }
  d13C_DOC_permille {
    Float32 actual_range -32.4, -27.65;
    String long_name "D13c_doc_permille";
    String units "per mille (‰)";
  }
  Comment {
    String long_name "Comment";
    String units "unitless";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "Other";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_email "info@bco-dmo.org";
    String creator_name "BCO-DMO";
    String creator_url "https://www.bco-dmo.org/";
    String doi "10.26008/1912/bco-dmo.1005742.1";
    Float64 Easternmost_Easting -75.93867;
    Float64 geospatial_lat_max 39.27924;
    Float64 geospatial_lat_min 37.20699;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -75.93867;
    Float64 geospatial_lon_min -76.44807;
    String geospatial_lon_units "degrees_east";
    String history 
"2026-09-11T07:14:44Z (local files)
2026-09-11T07:14:44Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_1005742_v1.html";
    String infoUrl "https://osprey.bco-dmo.org/dataset/1005742";
    String institution "BCO-DMO";
    String license 
"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.";
    Float64 Northernmost_Northing 39.27924;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 37.20699;
    String summary "These data include vertical profiles of concentrations and stable carbon isotope values of methane, carbon dioxide, dissolved organic carbon (DOC), dissolved inorganic carbon (DIC), and total organic carbon (TOC) from porewater of sediment cores collected at methane seeps and reference sites. Sediment porosity and dissolved sulfate and chloride concentrations are also presented. Gravity cores (1 meter) were collected from the mainstem of Chesapeake Bay from July 25-29, 2022. These data are used to assess the distribution, source, and fate of methane in a eutrophic shallow-water estuary, which is a source of methane to the atmosphere. These data can be used to understand the processes driving methane release and constrain estuarine methane emissions. The sediment data are reported in a separate, related dataset.";
    String title "[Porewater geochemical data from mainstem Chesapeake Bay in July 2022] - Porewater geochemical data from sediment cores collected at methane seeps and reference sites in mainstem Chesapeake Bay in July 2022 (Collaborative Research: Investigating the source and flux of dissolved organic carbon released from methane seeps to the deep-ocean)";
    Float64 Westernmost_Easting -76.44807;
  }
}

 

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For details, see the tabledap Documentation.

 

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