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Dataset Title:  Chesapeake Bay, CB8 1 Subscribe RSS
Institution:  Virginia Institute of Marine Science   (Dataset ID: CB_CB8_1)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 time (time of observation, UTC) ?          2016-06-06T08:14:00Z    2018-06-25T08:02:00Z
  < slider >
 station_id ?          "CB8_1"    "CB8_1"
 latitude (station latitude, degrees_north) ?          36.99542    36.99542
  < slider >
 longitude (station longitude, degrees_east) ?          -76.16772    -76.16772
  < slider >
 depth (m) ?      
   - +  ?
  < slider >
 DO (mg/l) ?          5.2    12.19
 CO3 (┬Ámole/kg) ?          76.2301723950515    155.268103471414
 CHLA (ug/l) ?          2.0292    7.3692
 DOC (mg/l) ?              
 ALKALINITY (umole/kg) ?          1577.35277898742    2067.52136325644
 HCO3 (umole/kg) ?          1356.0261081466    1819.54974189922
 SIO4 (mg/l) ?          0.022    0.9058
 DIN (mg/l) ?          0.003    0.0893
 SALINITY (ppt) ?          15.76    30.34
 PCO2 (uatm) ?          290.815418593677    776.39140011797
 PC (mg/l) ?          0.28652    1.06297
 FSS (mg/l) ?          3.36    22.475
 NH4F (mg/l) ?          0.0037    0.0284
 NO2F (mg/l) ?          2.0E-4    0.009
 NO3F (mg/l) ?          1.0E-4    0.0519
 WTEMP (degree_C) ?          1.804    27.368
 PO4F (mg/l) ?          9.0E-4    0.021
 PH (1) ?          7.52    8.22
 DIC (┬Ámole/kg) ?          1460.8257858527    1940.30242405378
 NO23F (mg/l) ?          3.0E-4    0.0609
 TSS (mg/l) ?          5.62    27.325
 cruiseID ?      
   - +  ?
 lab ?          "ODU"    "ODU"
 project ?          "MAIN"    "MAIN"
 program ?          "TWQM"    "TWQM"
 
Server-side Functions ?
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.46520084e+9, 1.52991372e+9;
    String axis "T";
    String cf_role "profile_id";
    String ioos_category "Time";
    String long_name "time of observation";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  station_id {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 36.99542, 36.99542;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "station latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -76.16772, -76.16772;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "station longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range 1.0, 9.0;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  DO {
    Float64 _FillValue -9999.0;
    Float64 actual_range 5.2, 12.19;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "DO";
    String units "mg/l";
  }
  CO3 {
    Float64 _FillValue -9999.0;
    Float64 actual_range 76.23017239505145, 155.26810347141418;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "CO2";
    String long_name "CO3";
    String units "µmole/kg";
  }
  CHLA {
    Float64 _FillValue -9999.0;
    Float64 actual_range 2.0292, 7.3692;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum 0.03;
    String colorBarScale "Log";
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Ocean Color";
    String long_name "CHLA";
    String standard_name "concentration_of_chlorophyll_in_sea_water";
    String units "ug/l";
  }
  DOC {
    Float64 _FillValue -9999.0;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "DOC";
    String units "mg/l";
  }
  ALKALINITY {
    Float64 _FillValue -9999.0;
    Float64 actual_range 1577.3527789874222, 2067.5213632564364;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "CO2";
    String long_name "ALKALINITY";
    String units "umole/kg";
  }
  HCO3 {
    Float64 _FillValue -9999.0;
    Float64 actual_range 1356.0261081465958, 1819.5497418992218;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "CO2";
    String long_name "HCO3";
    String units "umole/kg";
  }
  SIO4 {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.022, 0.9058;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "SIO4";
    String units "mg/l";
  }
  DIN {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.003, 0.0893;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "DIN";
    String units "mg/l";
  }
  SALINITY {
    Float64 _FillValue -9999.0;
    Float64 actual_range 15.76, 30.34;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Salinity";
    String long_name "SALINITY";
    String standard_name "sea_water_practical_salinity";
    String units "ppt";
  }
  PCO2 {
    Float64 _FillValue -9999.0;
    Float64 actual_range 290.81541859367655, 776.3914001179701;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "CO2";
    String long_name "PCO2";
    String units "uatm";
  }
  PC {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.28652, 1.06297;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "PC";
    String units "mg/l";
  }
  FSS {
    Float64 _FillValue -9999.0;
    Float64 actual_range 3.36, 22.475;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "FSS";
    String units "mg/l";
  }
  NH4F {
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.0037, 0.0284;
    String coordinates "time latitude longitude dpeth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved Nutrients";
    String long_name "NH4F";
    String units "mg/l";
  }
  NO2F {
    Float64 _FillValue -9999.0;
    Float64 actual_range 2.0e-4, 0.009;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved Nutrients";
    String long_name "NO2F";
    String units "mg/l";
  }
  NO3F {
    Float64 _FillValue -9999.0;
    Float64 actual_range 1.0e-4, 0.0519;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved Nutrients";
    String long_name "NO3F";
    String units "mg/l";
  }
  WTEMP {
    Float64 _FillValue -9999.0;
    Float64 actual_range 1.804, 27.368;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Temperature";
    String long_name "WTEMP";
    String units "degree_C";
  }
  PO4F {
    Float64 _FillValue -9999.0;
    Float64 actual_range 9.0e-4, 0.021;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved Nutrients";
    String long_name "PO4F";
    String units "mg/l";
  }
  PH {
    Float64 _FillValue -9999.0;
    Float64 actual_range 7.52, 8.22;
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 7.0;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Salinity";
    String long_name "PH";
    String standard_name "sea_water_ph_reported_on_total_scale";
    String units "1";
  }
  DIC {
    Float64 _FillValue -9999.0;
    Float64 actual_range 1460.825785852698, 1940.3024240537834;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "DIC";
    String units "µmole/kg";
  }
  NO23F {
    Float64 _FillValue -9999.0;
    Float64 actual_range 3.0e-4, 0.0609;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Dissolved Nutrients";
    String long_name "NO23F";
    String units "mg/l";
  }
  TSS {
    Float64 _FillValue -9999.0;
    Float64 actual_range 5.62, 27.325;
    String coordinates "time latitude longitude depth";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "TSS";
    String units "mg/l";
  }
  cruiseID {
    String ioos_category "Identifier";
    String long_name "Cruise ID";
  }
  lab {
    String ioos_category "Unknown";
    String long_name "Lab";
  }
  project {
    String ioos_category "Identifier";
    String long_name "Project";
  }
  program {
    String ioos_category "Unknown";
    String long_name "Program";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeriesProfile";
    String cdm_profile_variables "time";
    String cdm_timeseries_variables "station_id";
    String Conventions "CF-1.6, ACDD-1.3, COARDS";
    String creator_name "Virginia Institute of Marine Science";
    String creator_type "institution";
    String creator_url "http://www.vims.edu";
    String date_created "2019-09-06T14:47:05Z";
    Float64 Easternmost_Easting -76.16772;
    String featureType "TimeSeriesProfile";
    String geospatial_bounds "POINT(36.99542 -76.16772)";
    String geospatial_bounds_crs "EPSG:4326";
    String geospatial_bounds_vertical_crs "EPSG:4297";
    Float64 geospatial_lat_max 36.99542;
    Float64 geospatial_lat_min 36.99542;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -76.16772;
    Float64 geospatial_lon_min -76.16772;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 9.0;
    Float64 geospatial_vertical_min 1.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"2021-03-01T04:44:30Z (local files)
2021-03-01T04:44:30Z http://erddap.maracoos.org/erddap/tabledap/CB_CB8_1.html";
    String infoUrl "???";
    String institution "Virginia Institute of Marine Science";
    String keywords "alkalinity, carbon, carbon dioxide, carbonate, chemistry, chla, chlorophyll, chlorophyll-a, co2, co3, color, commerce, concentration, concentration_of_chlorophyll_in_sea_water, cruise, cruiseID, data, density, department, depth, dic, din, dioxide, dissolved, dissolved nutrients, doc, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Salinity/Density > Salinity, fss, hco3, identifier, lab, latitude, longitude, name, nh4f, no23f, no2f, no3f, nutrients, observation, ocean, ocean color, oceans, pco2, platform, platform_name, po4f, practical, program, project, reported, salinity, scale, science, sea, sea_water_ph_reported_on_total_scale, sea_water_practical_salinity, seawater, sio4, station_name, temperature, time, total, tss, vims, water, we4, wtemp";
    String keywords_vocabulary "GCMD Science Keywords";
    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 naming_authority "edu.vims";
    String nodc_template_version "NODC_TimeSeriesProfile_Template_v2.0";
    Float64 Northernmost_Northing 36.99542;
    String source "vims";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 36.99542;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String subsetVariables "depth,cruiseID";
    String summary "Seawater samples were collected in Chesapeake Bay for dissolved inorganic carbon (DIC) and total alkalinity (TA) from June 2016 to July 2018.  They were collected in the lower half of the Bay aboard the R/V Fay Slover in collaboration with Old Dominion University's Chesapeake Bay Program Water Quality Laboratory and the VA Dept. of Environmental Quality.  In the upper half of the Bay, samples were collected aboard the R/V Kerhin in collaboration with the Maryland Department of Natural Resources' Chesapeake Bay Water Quality Monitoring Program.  Additional water quality parameters from the cruises were downloaded from the Chesapeake Bay program website.  Additional carbonate system parameters were then computed from DIC and TA";
    String time_coverage_duration "PT16800S";
    String time_coverage_end "2018-06-25T08:02:00Z";
    String time_coverage_resolution "PT360S";
    String time_coverage_start "2016-06-06T08:14:00Z";
    String title "Chesapeake Bay, CB8 1";
    Float64 Westernmost_Easting -76.16772;
  }
}

 

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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