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Dataset Title:  USGS-CMG time-series data: MOBILE_BAY - 376 - 3762sc-a Subscribe RSS
Institution:  USGS Coastal and Marine Geology Program   (Dataset ID: 3762sc-a)
Range: longitude = -88.17834 to -88.17834°E, latitude = 29.96283 to 29.96283°N, altitude = -5.0 to -5.0m, time = 1991-02-26T14:26:15Z to 1991-05-10T15:11:15Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  cond {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 3.34292, 5.04989;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 5.04989;
    Float64 colorBarMinimum 3.34292;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 51;
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "Conductivity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 5.0;
    String serial_number "SC-393  ";
    String standard_name "sea_water_electrical_conductivity";
    String units "S/m";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 6.67578375e+8, 6.73888275e+8;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "time of measurement";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  feature_type_instance {
    String cf_role "timeseries_id";
    String ioos_category "Unknown";
    String long_name "Identifier for each feature type instance";
  }
  sigma_theta {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 13.9445, 24.9495;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 24.9495;
    Float64 colorBarMinimum 13.9445;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 70;
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "Sigma-theta of sea water";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 5.0;
    String serial_number "SC-393  ";
    String standard_name "sea_water_sigma_theta";
    String units "kg/m^3";
  }
  crs {
    Int32 actual_range -2147483647, -2147483647;
    String epsg_code "EPSG:4326";
    String grid_mapping_name "latitude_longitude";
    Float64 inverse_flattening 298.257223563;
    String ioos_category "Unknown";
    String long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    Float64 semi_major_axis 6378137.0;
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float32 _FillValue -9999.9;
    Float32 actual_range -5.0, -5.0;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String grid_mapping "crs";
    String ioos_category "Location";
    String long_name "z of the sensor relative to the water surface";
    String positive "up";
    String standard_name "altitude";
    String units "m";
    Float32 valid_max -5.0;
    Float32 valid_min -5.0;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -88.17834, -88.17834;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max -88.17834;
    Float32 valid_min -88.17834;
  }
  temp {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 16.12772, 25.09689;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 25.0969;
    Float64 colorBarMinimum 16.1277;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 32;
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "Water Temperature";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 5.0;
    String serial_number "SC-393  ";
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  salinity {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 22.4046, 34.5857;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 34.5857;
    Float64 colorBarMinimum 22.4046;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 40;
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "Salinity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 5.0;
    String serial_number "SC-393  ";
    String standard_name "sea_water_practical_salinity";
    String units "1e-3";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 29.96283, 29.96283;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 29.962833;
    Float32 valid_min 29.962833;
  }
  platform {
    Int32 actual_range -2147483647, -2147483647;
    String definition "http://mmisw.org/ont/ioos/definition/stationID";
    String ioos_category "Unknown";
    String ioos_code "3762sc-a";
    String long_name "USGS-CMG time-series data from the Mobile Bay Study project, mooring 376 and package 3762sc-a. Measure currents and transport out of Mobile Bay.";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: MOBILE_BAY - 376 - 3762sc-a";
    String type "fixed";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.17";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "latitude, longitude, altitude, feature_type_instance";
    String contributor_name "B. Butman";
    String contributor_role "principalInvestigator";
    String Conventions "CF-1.6,ACDD-1.3, COARDS";
    String COORD_SYSTEM "GEOGRAPHICAL";
    String CREATION_DATE "28-May-2008 16:35:47";
    String creator_email "rsignell@usgs.gov";
    String creator_name "Rich Signell";
    String creator_phone "+1 (508) 548-8700";
    String creator_url "https://www.usgs.gov";
    String DATA_ORIGIN "USGS";
    String DATA_TYPE "TIME";
    String date_created "2017-04-11T22:21:00Z";
    String date_issued "2017-04-11T22:21:00Z";
    String date_metadata_modified "2017-04-11T22:21:00Z";
    String date_modified "2017-04-11T22:21:00Z";
    String DESCRIPT "GULF OF MEXICO SEACAT                                       ";
    Float64 Easternmost_Easting -88.17834;
    String featureType "TimeSeries";
    String geospatial_bounds "POINT(-88.17833709716797 29.962833404541016)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 29.96283;
    Float64 geospatial_lat_min 29.96283;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -88.17834;
    Float64 geospatial_lon_min -88.17834;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max -5.0;
    Float64 geospatial_vertical_min -5.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_resolution "0";
    String geospatial_vertical_units "m";
    String grid_mapping_epsg_code "EPSG:4326";
    Float64 grid_mapping_inverse_flattening 298.257223563;
    String grid_mapping_long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    String grid_mapping_name "latitude_longitude";
    Float64 grid_mapping_semi_major_axis 6378137.0;
    String history 
"Fri Nov  1 20:16:12 2019: ncatted -a project,global,a,c,, CMG_Portal MOBILE_BAY/3762sc-a.cdf
corrected sign of lon using fix_poslon.m: 
2017-04-11T22:21:00Z - pyaxiom - File created using pyaxiom
2024-07-24T13:34:02Z (local files)
2024-07-24T13:34:02Z https://geoport.usgs.esipfed.org/tabledap/3762sc-a.das";
    String id "3762sc-a";
    String infoUrl "https://stellwagen.er.usgs.gov/";
    String institution "USGS Coastal and Marine Geology Program";
    String keywords "cond, crs, feature_type_instance, latitude, longitude, platform, salinity, sigma_theta, temp, time, z";
    String keywords_vocabulary "GCMD Science Keywords";
    Float32 latitude 29.962833;
    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.";
    Float32 longitude -88.17834;
    Float32 magnetic_variation 0.0;
    Float64 MOORING 376;
    String naming_authority "gov.usgs.cmgp";
    String ncei_template_version "NCEI_NetCDF_TimeSeries_Orthogonal_Template_v2.0";
    String NCO "netCDF Operators version 4.8.1 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)";
    Float64 Northernmost_Northing 29.96283;
    String original_filename "3762sc-a.cdf";
    String original_folder "MOBILE_BAY";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Measure currents and transport out of Mobile Bay.";
    String project_title "Mobile Bay Study";
    String publisher_email "emontgomery@usgs.gov";
    String publisher_name "Ellyn Montgomery";
    String publisher_phone "+1 (508) 548-8700";
    String publisher_url "https://www.usgs.gov";
    Int32 sampling_interval 450;
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 29.96283;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String start_time "91- II -26  14.26.15";
    String stop_time "91-  V -10  15.11.15";
    String subsetVariables "latitude, longitude, altitude, feature_type_instance";
    String summary "USGS-CMG time-series data from the Mobile Bay Study project, mooring 376 and package 3762sc-a. Measure currents and transport out of Mobile Bay.";
    String time_coverage_duration "PT6309900S";
    String time_coverage_end "1991-05-10T15:11:15Z";
    String time_coverage_start "1991-02-26T14:26:15Z";
    String title "USGS-CMG time-series data: MOBILE_BAY - 376 - 3762sc-a";
    Int32 WATER_DEPTH 29;
    Float32 water_depth 29.0;
    Float64 Westernmost_Easting -88.17834;
  }
}

 

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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