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Dataset Title:	[TGA for OAE North Atlantic experiments] - Thermogravimetric analysis (TGA) for precipitate from shipboard ocean alkalinity enhancement (OAE) experiments in the North Atlantic on R/V Atlantic Explorer cruise AE2320 in September 2023 (OCE-PRF: Towards Quantifying Calcium Carbonate Sediment Dissolution During Marine Diagenesis)
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_963692_v1)
Information:	Summary | License | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
time_elapsed (Time, minutes)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0125	107.9708
Temperature (degrees Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		25.1838	1099.316
Weight_mg (milligrams (mg))	!= =~ <= >= = < >		!= =~ <= >= = < >		18.2731	34.8802
Weight_pcnt (percent)	!= =~ <= >= = < >		!= =~ <= >= = < >		52.3883	100.0004
first_derivative (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		-4.0E-4	0.5052
Heat_Flow (milliwatts (mW))	!= =~ <= >= = < >		!= =~ <= >= = < >		-39.111	55.4339
Temperature_Difference_C (degrees Celsius)	!= =~ <= >= = < >		!= =~ <= >= = < >		-2.2414	8.6052
Temperature_Difference_uV (microvolts (uV))	!= =~ <= >= = < >		!= =~ <= >= = < >		-27.2885	50.2523
Sample_Purge_Flow (milliliters per minute (mL/min))	!= =~ <= >= = < >		!= =~ <= >= = < >		49.9132	50.7403

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" time_elapsed Temperature Weight_mg Weight_pcnt first_derivative Heat_Flow Temperature_Difference_C Temperature_Difference_uV Sample_Purge_Flow time_elapsed Temperature Weight_mg Weight_pcnt first_derivative Heat_Flow Temperature_Difference_C Temperature_Difference_uV Sample_Purge_Flow time_elapsed Temperature Weight_mg Weight_pcnt first_derivative Heat_Flow Temperature_Difference_C Temperature_Difference_uV Sample_Purge_Flow time_elapsed Temperature Weight_mg Weight_pcnt first_derivative Heat_Flow Temperature_Difference_C Temperature_Difference_uV Sample_Purge_Flow time_elapsed Temperature Weight_mg Weight_pcnt first_derivative Heat_Flow Temperature_Difference_C Temperature_Difference_uV Sample_Purge_Flow ")

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 {
  time_elapsed {
    Float32 actual_range 0.0125, 107.9708;
    String long_name "Time";
    String units "minutes";
  }
  Temperature {
    Float32 actual_range 25.1838, 1099.316;
    String long_name "Temperature";
    String units "degrees Celsius";
  }
  Weight_mg {
    Float32 actual_range 18.2731, 34.8802;
    String long_name "Weight_mg";
    String units "milligrams (mg)";
  }
  Weight_pcnt {
    Float32 actual_range 52.3883, 100.0004;
    String long_name "Weight_pcnt";
    String units "percent";
  }
  first_derivative {
    Float32 actual_range -4.0e-4, 0.5052;
    String long_name "First_derivative";
    String units "unitless";
  }
  Heat_Flow {
    Float32 actual_range -39.111, 55.4339;
    String long_name "Heat_flow";
    String units "milliwatts (mW)";
  }
  Temperature_Difference_C {
    Float32 actual_range -2.2414, 8.6052;
    String long_name "Temperature_difference_c";
    String units "degrees Celsius";
  }
  Temperature_Difference_uV {
    Float32 actual_range -27.2885, 50.2523;
    String long_name "Temperature_difference_uv";
    String units "microvolts (uV)";
  }
  Sample_Purge_Flow {
    Float32 actual_range 49.9132, 50.7403;
    String long_name "Sample_purge_flow";
    String units "milliliters per minute (mL/min)";
  }
 }
  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.963692.1";
    String history 
"2025-07-03T04:40:07Z (local files)
2025-07-03T04:40:07Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_963692_v1.html";
    String infoUrl "https://osprey.bco-dmo.org/dataset/963692";
    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.";
    String sourceUrl "(local files)";
    String summary "To explore mineral formation due to alkalinity addition, we present results from shipboard experiments in which an aqueous solution of NaOH was added to unfiltered seawater collected from the surface ocean in the Sargasso Sea. Alkalinity addition ranged from 500 to 2000 micromoles per kilogram (µmol.kg-1) and the carbonate chemistry was monitored through time by measuring total alkalinity (TA) and dissolved inorganic carbon (DIC), which were used to calculate Ω. The amount of precipitate and its mineralogy were determined throughout the experiments. Mineral precipitation took place in all experiments over a timescale of hours to days. The dominant mineralogy of precipitate is aragonite with trace amounts of calcite and brucite. Aragonite crystallite size increases and its micro-strain decreases with time, consistent with Ostwald ripening. This dataset contains TGA analysis for precipitate from an experiment where TA was enhanced by 2000 µmol.kg-1.";
    String title "[TGA for OAE North Atlantic experiments] - Thermogravimetric analysis (TGA) for precipitate from shipboard ocean alkalinity enhancement (OAE) experiments in the North Atlantic on R/V Atlantic Explorer cruise AE2320 in September 2023 (OCE-PRF:  Towards Quantifying Calcium Carbonate Sediment Dissolution During Marine Diagenesis)";
  }
}

 

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Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP Data Access Protocol (DAP) and its selection constraints.

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

• (easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
• (easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
• (not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

 

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