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Dataset Title:	[GP15 Nitrate d15N and d18O Leg 2] - Nitrate d15N and d18O from Niskin bottle samples collected on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))
Institution:	BCO-DMO   (Dataset ID: bcodmo_dataset_928099_v1)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Files | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
Station_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"18.6"	"39"
Event_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		6775	7024
Start_Date_UTC (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"20181025"	"20181123"
Start_Time_UTC (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"0101"	"2332"
time (Start_iso_datetime_utc, UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-10-25T15:59:00Z	2018-11-23T12:59:00Z
End_Date_UTC (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"20181025"	"20181123"
End_Time_UTC (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"0003"	"2359"
End_ISO_DateTime_UTC (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2018-10-25T15:59:00Z	2018-11-23T14:01:00Z
latitude (Start_latitude, degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		-20.0	18.9064
longitude (Start_longitude, degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-155.258	-151.9862
End_Latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		-20.0	18.9065
End_Longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-155.2581	-151.9861
Sample_ID (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		13935	15849
depth (Sample_depth, m)	!= =~ <= >= = < >		!= =~ <= >= = < >		4.28	5341.7
NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp (per mil versus air)	!= =~ <= >= = < >		!= =~ <= >= = < >		4.18	28.41
SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp (per mil versus air)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.34
Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
NITRATE_18_16_D_DELTA_BOTTLE_dksgvb (per mil versus VSMOW)	!= =~ <= >= = < >		!= =~ <= >= = < >		1.65	24.32
SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb (per mil versus VSMOW)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.7
Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		1	1
Comment (unitless)	!= =~ <= >= = < >		!= =~ <= >= = < >		"Nitrite removed"	"Nitrite removed"

 

Server-side Functions

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orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" Station_ID Event_ID Start_Date_UTC Start_Time_UTC time End_Date_UTC End_Time_UTC End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_ID depth NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp NITRATE_18_16_D_DELTA_BOTTLE_dksgvb SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Comment Station_ID Event_ID Start_Date_UTC Start_Time_UTC time End_Date_UTC End_Time_UTC End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_ID depth NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp NITRATE_18_16_D_DELTA_BOTTLE_dksgvb SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Comment Station_ID Event_ID Start_Date_UTC Start_Time_UTC time End_Date_UTC End_Time_UTC End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_ID depth NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp NITRATE_18_16_D_DELTA_BOTTLE_dksgvb SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Comment Station_ID Event_ID Start_Date_UTC Start_Time_UTC time End_Date_UTC End_Time_UTC End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_ID depth NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp NITRATE_18_16_D_DELTA_BOTTLE_dksgvb SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Comment Station_ID Event_ID Start_Date_UTC Start_Time_UTC time End_Date_UTC End_Time_UTC End_ISO_DateTime_UTC latitude longitude End_Latitude End_Longitude Sample_ID depth NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp NITRATE_18_16_D_DELTA_BOTTLE_dksgvb SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb 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 {
  Station_ID {
    String long_name "Station_id";
    String units "unitless";
  }
  Event_ID {
    Int32 actual_range 6775, 7024;
    String long_name "Event_id";
    String units "unitless";
  }
  Start_Date_UTC {
    String long_name "Start_date_utc";
    String units "unitless";
  }
  Start_Time_UTC {
    String long_name "Start_time_utc";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.54048314e+9, 1.54297794e+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_Date_UTC {
    String long_name "End_date_utc";
    String units "unitless";
  }
  End_Time_UTC {
    String long_name "End_time_utc";
    String units "unitless";
  }
  End_ISO_DateTime_UTC {
    Float64 actual_range 1.54048314e+9, 1.54298166e+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 -20.0, 18.9064;
    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 -155.258, -151.9862;
    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 -20.0, 18.9065;
    String long_name "End_latitude";
    String units "degrees_north";
  }
  End_Longitude {
    Float32 actual_range -155.2581, -151.9861;
    String long_name "End_longitude";
    String units "degrees_east";
  }
  Sample_ID {
    Int32 actual_range 13935, 15849;
    String long_name "Sample_id";
    String units "unitless";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 4.28, 5341.7;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Sample_depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp {
    Float32 actual_range 4.18, 28.41;
    String long_name "Nitrate_15_14_d_delta_bottle_w2kmnp";
    String units "per mil versus air";
  }
  SD1_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp {
    Float32 actual_range 0.0, 0.34;
    String long_name "Sd1_nitrate_15_14_d_delta_bottle_w2kmnp";
    String units "per mil versus air";
  }
  Flag_NITRATE_15_14_D_DELTA_BOTTLE_w2kmnp {
    Int32 actual_range 1, 1;
    String long_name "Flag_nitrate_15_14_d_delta_bottle_w2kmnp";
    String units "unitless";
  }
  NITRATE_18_16_D_DELTA_BOTTLE_dksgvb {
    Float32 actual_range 1.65, 24.32;
    String long_name "Nitrate_18_16_d_delta_bottle_dksgvb";
    String units "per mil versus VSMOW";
  }
  SD1_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb {
    Float32 actual_range 0.0, 0.7;
    String long_name "Sd1_nitrate_18_16_d_delta_bottle_dksgvb";
    String units "per mil versus VSMOW";
  }
  Flag_NITRATE_18_16_D_DELTA_BOTTLE_dksgvb {
    Int32 actual_range 1, 1;
    String long_name "Flag_nitrate_18_16_d_delta_bottle_dksgvb";
    String units "unitless";
  }
  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 defaultDataQuery "&time<now";
    String doi "10.26008/1912/bco-dmo.928099.1";
    Float64 Easternmost_Easting -151.9862;
    Float64 geospatial_lat_max 18.9064;
    Float64 geospatial_lat_min -20.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -151.9862;
    Float64 geospatial_lon_min -155.258;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 5341.7;
    Float64 geospatial_vertical_min 4.28;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2024-12-22T06:01:43Z (local files)
2024-12-22T06:01:43Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_928099_v1.html";
    String infoUrl "https://www.bco-dmo.org/dataset/928099";
    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 18.9064;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -20.0;
    String summary 
"These data include nitrate δ15N and δ18O along US GEOTRACES GP15, a meridional transect at ~152°W in the Pacific Ocean. The Pacific hosts significant rates of all the fluxes that are relevant to the global N cycle: the N budget fluxes (those that either generate or consume fixed N; N2 fixation and denitrification) as well as the N fluxes from the internal N cycle (those that generate or consume nitrate but leave the fixed N pool unaltered; nitrate regeneration and assimilation). The nitrate δ15N and δ18O provide a useful tool to separate and possibly quantify the overlapping impacts of all these co-occurring processes. 

GP15 was a 60-day research cruise that took place in 2018 along a transect form Alaska to Tahiti at 152° W on board of the R/V Revelle. The cruise was completed in two legs (RR1814 and RR1815), which started on the 18th of September and on the 24th of October 2018, respectively. This dataset includes data from Leg 2 (RR1815). Leg 1 data (RR1814) are provided in a separate, related dataset.";
    String time_coverage_end "2018-11-23T12:59:00Z";
    String time_coverage_start "2018-10-25T15:59:00Z";
    String title "[GP15 Nitrate d15N and d18O Leg 2] - Nitrate d15N and d18O from Niskin bottle samples collected on Leg 2 (Hilo, HI to Papeete, French Polynesia) of the US GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15, RR1815) on R/V Roger Revelle from October to November 2018 (US GEOTRACES Pacific Meridional Transect (GP15))";
    Float64 Westernmost_Easting -155.258;
  }
}

 

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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.
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• (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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