ERDDAP > tabledap > Data Access Form

Dataset Title:	[GP15 Aerosol Pb and Pb Isotopes Leg 1] - Aerosol lead (Pb) and Pb isotopes from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_934745_v1)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
Event_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		6586	6766
time (Start_iso_datetime_utc, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-09-30T04:25:00Z	2018-10-17T19:47:00Z
End_ISO_DateTime_UTC (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-10-02T19:28:00Z	2018-10-20T18:35:00Z
latitude (Start_latitude, degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		27.0	54.66
longitude (Start_longitude, degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-155.17	-152.0
End_Latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		22.0	52.0
End_Longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-152.0	-152.0
Sample_Position (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"1-1"	"2-8"
Sample_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		12812	13866
Pb_A_T_CONC_HIVOL_tsmsme (femtomoles per cubic meter (fmol/m^3))	!= =~ <= >= = < >		!= =~ <= >= = < >		44.7	232.9
SD1_Pb_A_T_CONC_HIVOL_tsmsme (femtomoles per cubic meter (fmol/m^3))	!= =~ <= >= = < >		!= =~ <= >= = < >
Flag_Pb_A_T_CONC_HIVOL_tsmsme (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
Pb_206_207_A_T_RATIO_HIVOL_r8aus4 (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.1532	1.1768
SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		5.0E-4	9.0E-4
Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
Pb_208_207_A_T_RATIO_HIVOL_ybtdvk (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		2.4382	2.4441
SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		9.0E-4	0.0013
Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
Pb_206_204_A_T_RATIO_HIVOL_w1gtye (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		18.016	18.354
SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.015	0.021
Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" Event_ID time End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_Position Sample_ID Pb_A_T_CONC_HIVOL_tsmsme SD1_Pb_A_T_CONC_HIVOL_tsmsme Flag_Pb_A_T_CONC_HIVOL_tsmsme Pb_206_207_A_T_RATIO_HIVOL_r8aus4 SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Pb_208_207_A_T_RATIO_HIVOL_ybtdvk SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Pb_206_204_A_T_RATIO_HIVOL_w1gtye SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Event_ID time End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_Position Sample_ID Pb_A_T_CONC_HIVOL_tsmsme SD1_Pb_A_T_CONC_HIVOL_tsmsme Flag_Pb_A_T_CONC_HIVOL_tsmsme Pb_206_207_A_T_RATIO_HIVOL_r8aus4 SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Pb_208_207_A_T_RATIO_HIVOL_ybtdvk SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Pb_206_204_A_T_RATIO_HIVOL_w1gtye SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Event_ID time End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_Position Sample_ID Pb_A_T_CONC_HIVOL_tsmsme SD1_Pb_A_T_CONC_HIVOL_tsmsme Flag_Pb_A_T_CONC_HIVOL_tsmsme Pb_206_207_A_T_RATIO_HIVOL_r8aus4 SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Pb_208_207_A_T_RATIO_HIVOL_ybtdvk SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Pb_206_204_A_T_RATIO_HIVOL_w1gtye SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Event_ID time End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_Position Sample_ID Pb_A_T_CONC_HIVOL_tsmsme SD1_Pb_A_T_CONC_HIVOL_tsmsme Flag_Pb_A_T_CONC_HIVOL_tsmsme Pb_206_207_A_T_RATIO_HIVOL_r8aus4 SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Pb_208_207_A_T_RATIO_HIVOL_ybtdvk SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Pb_206_204_A_T_RATIO_HIVOL_w1gtye SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Event_ID time End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_Position Sample_ID Pb_A_T_CONC_HIVOL_tsmsme SD1_Pb_A_T_CONC_HIVOL_tsmsme Flag_Pb_A_T_CONC_HIVOL_tsmsme Pb_206_207_A_T_RATIO_HIVOL_r8aus4 SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 Pb_208_207_A_T_RATIO_HIVOL_ybtdvk SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk Pb_206_204_A_T_RATIO_HIVOL_w1gtye SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye ")

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 {
  Event_ID {
    Int32 actual_range 6586, 6766;
    String long_name "Event_id";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5382815e+9, 1.53980562e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Start_iso_datetime_utc";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  End_ISO_DateTime_UTC {
    Float64 actual_range 1.53850848e+9, 1.5400605e+9;
    String ioos_category "Time";
    String long_name "End_iso_datetime_utc";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 27.0, 54.66;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Start_latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -155.17, -152.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "Start_longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  End_Latitude {
    Float32 actual_range 22.0, 52.0;
    String long_name "End_latitude";
    String units "degrees_north";
  }
  End_Longitude {
    Float32 actual_range -152.0, -152.0;
    String long_name "End_longitude";
    String units "degrees_east";
  }
  Sample_Position {
    String long_name "Sample_position";
    String units "unitless";
  }
  Sample_ID {
    Int32 actual_range 12812, 13866;
    String long_name "Sample_id";
    String units "unitless";
  }
  Pb_A_T_CONC_HIVOL_tsmsme {
    Float32 actual_range 44.7, 232.9;
    String long_name "Pb_a_t_conc_hivol_tsmsme";
    String units "femtomoles per cubic meter (fmol/m^3)";
  }
  SD1_Pb_A_T_CONC_HIVOL_tsmsme {
    String long_name "Sd1_pb_a_t_conc_hivol_tsmsme";
    String units "femtomoles per cubic meter (fmol/m^3)";
  }
  Flag_Pb_A_T_CONC_HIVOL_tsmsme {
    Int32 actual_range 1, 1;
    String long_name "Flag_pb_a_t_conc_hivol_tsmsme";
    String units "unitless";
  }
  Pb_206_207_A_T_RATIO_HIVOL_r8aus4 {
    Float32 actual_range 1.1532, 1.1768;
    String long_name "Pb_206_207_a_t_ratio_hivol_r8aus4";
    String units "unitless";
  }
  SD1_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 {
    Float32 actual_range 5.0e-4, 9.0e-4;
    String long_name "Sd1_pb_206_207_a_t_ratio_hivol_r8aus4";
    String units "unitless";
  }
  Flag_Pb_206_207_A_T_RATIO_HIVOL_r8aus4 {
    Int32 actual_range 1, 1;
    String long_name "Flag_pb_206_207_a_t_ratio_hivol_r8aus4";
    String units "unitless";
  }
  Pb_208_207_A_T_RATIO_HIVOL_ybtdvk {
    Float32 actual_range 2.4382, 2.4441;
    String long_name "Pb_208_207_a_t_ratio_hivol_ybtdvk";
    String units "unitless";
  }
  SD1_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk {
    Float32 actual_range 9.0e-4, 0.0013;
    String long_name "Sd1_pb_208_207_a_t_ratio_hivol_ybtdvk";
    String units "unitless";
  }
  Flag_Pb_208_207_A_T_RATIO_HIVOL_ybtdvk {
    Int32 actual_range 1, 1;
    String long_name "Flag_pb_208_207_a_t_ratio_hivol_ybtdvk";
    String units "unitless";
  }
  Pb_206_204_A_T_RATIO_HIVOL_w1gtye {
    Float32 actual_range 18.016, 18.354;
    String long_name "Pb_206_204_a_t_ratio_hivol_w1gtye";
    String units "unitless";
  }
  SD1_Pb_206_204_A_T_RATIO_HIVOL_w1gtye {
    Float32 actual_range 0.015, 0.021;
    String long_name "Sd1_pb_206_204_a_t_ratio_hivol_w1gtye";
    String units "unitless";
  }
  Flag_Pb_206_204_A_T_RATIO_HIVOL_w1gtye {
    Int32 actual_range 1, 1;
    String long_name "Flag_pb_206_204_a_t_ratio_hivol_w1gtye";
    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 defaultDataQuery "&time<now";
    String doi "10.26008/1912/bco-dmo.934745.1";
    Float64 Easternmost_Easting -152.0;
    Float64 geospatial_lat_max 54.66;
    Float64 geospatial_lat_min 27.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -152.0;
    Float64 geospatial_lon_min -155.17;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-06-06T02:37:17Z (local files)
2025-06-06T02:37:17Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_934745_v1.html";
    String infoUrl "https://osprey.bco-dmo.org/dataset/934745";
    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 54.66;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 27.0;
    String summary "Dr. Chris Marsay collected shipboard aerosol samples during the U.S. GEOTRACES GP15 Pacific Meridional Transect cruise on R/V Revelle from October to November 2018 and provided subsamples to Massachusetts Institute of Technology (MIT) for lead (Pb) and Pb isotope analyses. These were carried out by undergraduate student Avery Wang and Research Scientist Jahander Ramezani. The north-south transect shows large Pb concentration and Pb isotope changes. The Pb concentration variability is very similar to the Pb concentrations measured independently by Dr. Marsay. The Pb isotope ratios show a strong Chinese signature in the northern portion of the transect, and ratios more similar to American and Australian signatures further south.";
    String time_coverage_end "2018-10-17T19:47:00Z";
    String time_coverage_start "2018-09-30T04:25:00Z";
    String title "[GP15 Aerosol Pb and Pb Isotopes Leg 1] - Aerosol lead (Pb) and Pb isotopes from Leg 1 (Seattle, WA to Hilo, HI) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1814) on R/V Roger Revelle from September to October 2018 (US GEOTRACES Pacific Meridional Transect (GP15))";
    Float64 Westernmost_Easting -155.17;
  }
}

 

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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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