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Dataset Title:  [GP15 Particle birefringence photon yield and particle beam attenuation
coefficient from GTC CTD] - Particle birefringence photon yield and particle
beam attenuation coefficient derived from optical particle sensors deployed on
GTC CTD casts on the U.S. GEOTRACES Pacific Meridional Transect (PMT)
cruise (GP15) on R/V Roger Revelle from Sept-Nov 2018 (US GEOTRACES Pacific
Meridional Transect (GP15))
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Institution:  BCO-DMO   (Dataset ID: bcodmo_dataset_941657_v1)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
 
   Maximum ?
 
 station (unitless) ?          1.0    39.0
 latitude (Lat_avg, degrees_north) ?          -19.9999    56.0583
  < slider >
 longitude (Lon_avg, degrees_east) ?          -156.9622    -151.9955
  < slider >
 jdays (unitless) ?          267.37    326.7555
 time (Iso_datetime_utc, UTC) ?          2018-09-24T08:52:00Z    2018-11-22T18:07:00Z
  < slider >
 track_km (kilometers) ?          0.0    8549.0
 ppz_depth (m) ?          41.0    265.0
 depth (m) ?          5.163258    499.7685
  < slider >
 depth_n (unitless) ?          1    8
 press (decibars (db)) ?          5.20772    504.3333
 temp (degrees Celsius) ?          3.407454    29.7459
 temp_sd (degrees Celsius) ?          -9999.0    2.915691
 sal (PSU) ?          31.40297    36.46098
 sal_sd (PSU) ?          -9999.0    0.4345032
 sigth (unitless) ?          20.68348    27.19574
 pic010Biref_av (PPM m-1) ?          -9999.0    14.2854
 pic010Biref_av_sd (PPM m-1) ?          -9999.0    4.522051
 pic010Biref_av_n (unitless) ?          0    8
 cp1035_av (m-1) ?          0.008401    0.569056
 cp1035_av_sd (m-1) ?          -9999.0    0.1188956
 cp1035_av_n (unitless) ?          1    8
 o2 (umol/kg) ?          3.084336    323.6557
 o2_sd (umol/kg) ?          -9999.0    60.28238
 o2_n (unitless) ?          1    8
 Chl_flsp_av (mg/m3) ?          -0.057    3.024573
 Chl_flsp_av_sd (mg/m3) ?          -9999.0    1.006242
 Chl_flsp_av_n (unitless) ?          1    8
 
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")

File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station {
    Float32 actual_range 1.0, 39.0;
    String long_name "Station";
    String units "unitless";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range -19.9999, 56.0583;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Lat_avg";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -156.9622, -151.9955;
    String axis "X";
    String ioos_category "Location";
    String long_name "Lon_avg";
    String standard_name "longitude";
    String units "degrees_east";
  }
  jdays {
    Float32 actual_range 267.37, 326.7555;
    String long_name "Jdays";
    String units "unitless";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.53777912e+9, 1.54291002e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "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";
  }
  track_km {
    Float32 actual_range 0.0, 8549.0;
    String long_name "Track_km";
    String units "kilometers";
  }
  ppz_depth {
    Float32 actual_range 41.0, 265.0;
    String long_name "Ppz_depth";
    String units "m";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 5.163258, 499.7685;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  depth_n {
    Int32 actual_range 1, 8;
    String long_name "Depth_n";
    String units "unitless";
  }
  press {
    Float32 actual_range 5.20772, 504.3333;
    String long_name "Press";
    String units "decibars (db)";
  }
  temp {
    Float32 actual_range 3.407454, 29.7459;
    String long_name "Temp";
    String units "degrees Celsius";
  }
  temp_sd {
    Float32 actual_range -9999.0, 2.915691;
    String long_name "Temp_sd";
    String units "degrees Celsius";
  }
  sal {
    Float32 actual_range 31.40297, 36.46098;
    String long_name "Sal";
    String units "PSU";
  }
  sal_sd {
    Float32 actual_range -9999.0, 0.4345032;
    String long_name "Sal_sd";
    String units "PSU";
  }
  sigth {
    Float32 actual_range 20.68348, 27.19574;
    String long_name "Sigth";
    String units "unitless";
  }
  pic010Biref_av {
    Float32 actual_range -9999.0, 14.2854;
    String long_name "Pic010biref_av";
    String units "PPM m-1";
  }
  pic010Biref_av_sd {
    Float32 actual_range -9999.0, 4.522051;
    String long_name "Pic010biref_av_sd";
    String units "PPM m-1";
  }
  pic010Biref_av_n {
    Int32 actual_range 0, 8;
    String long_name "Pic010biref_av_n";
    String units "unitless";
  }
  cp1035_av {
    Float32 actual_range 0.008401, 0.569056;
    String long_name "Cp1035_av";
    String units "m-1";
  }
  cp1035_av_sd {
    Float32 actual_range -9999.0, 0.1188956;
    String long_name "Cp1035_av_sd";
    String units "m-1";
  }
  cp1035_av_n {
    Int32 actual_range 1, 8;
    String long_name "Cp1035_av_n";
    String units "unitless";
  }
  o2 {
    Float32 actual_range 3.084336, 323.6557;
    String long_name "O2";
    String units "umol/kg";
  }
  o2_sd {
    Float32 actual_range -9999.0, 60.28238;
    String long_name "O2_sd";
    String units "umol/kg";
  }
  o2_n {
    Int32 actual_range 1, 8;
    String long_name "O2_n";
    String units "unitless";
  }
  Chl_flsp_av {
    Float32 actual_range -0.057, 3.024573;
    String long_name "Chl_flsp_av";
    String units "mg/m3";
  }
  Chl_flsp_av_sd {
    Float32 actual_range -9999.0, 1.006242;
    String long_name "Chl_flsp_av_sd";
    String units "mg/m3";
  }
  Chl_flsp_av_n {
    Int32 actual_range 1, 8;
    String long_name "Chl_flsp_av_n";
    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 "&amp;time&lt;now";
    String doi "10.26008/1912/bco-dmo.941657.1";
    Float64 Easternmost_Easting -151.9955;
    Float64 geospatial_lat_max 56.0583;
    Float64 geospatial_lat_min -19.9999;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -151.9955;
    Float64 geospatial_lon_min -156.9622;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 499.7685;
    Float64 geospatial_vertical_min 5.163258;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2025-02-05T06:47:53Z (local files)
2025-02-05T06:47:53Z https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_941657_v1.html";
    String infoUrl "https://www.bco-dmo.org/dataset/941657";
    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 56.0583;
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing -19.9999;
    String summary "This data set was derived from optical particle sensors deployed during casts of the GEOTRACES Trace Metal Carousel (GTC) as part of the GEOTRACES Pacific Meridional Transect (GP15 expedition). There are several related data files provided. The primary data files include: (1) data for the 0-500 meters (m) depth interval, including measures of particle birefringence photon yield (units of parts per million per meter) and particle beam attenuation coefficient (units of per meter); and (2) 0-500 m optics data separated by cast and cast direction. Supplemental files include data for the full depth of the water column and CTD data used in the profile data calculations.";
    String time_coverage_end "2018-11-22T18:07:00Z";
    String time_coverage_start "2018-09-24T08:52:00Z";
    String title "[GP15 Particle birefringence photon yield and particle beam attenuation coefficient from GTC CTD] - Particle birefringence photon yield and particle beam attenuation coefficient derived from optical particle sensors deployed on GTC CTD casts on the U.S. GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) on R/V Roger Revelle from Sept-Nov 2018 (US GEOTRACES Pacific Meridional Transect (GP15))";
    Float64 Westernmost_Easting -156.9622;
  }
}

 

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 (external link) Data Access Protocol (DAP) (external link) and its selection constraints (external link).

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.

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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