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Dataset Title:  MBAY_LT - 5011p-a_d1 Subscribe RSS
Institution:  Coastal and Marine Hazards and Resources Program, U.S. Geological Survey   (Dataset ID: MBAY_LT_5011p_a_d1_nc)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ? 		Optional
Constraint #2 ? 		   Minimum ?
   or a List of Values ? 		   Maximum ?
 
 station_id ?      
   - +  ?
 feature_type_instance ?          "5011p-a_d1"    "5011p-a_d1"
 latitude (sensor latitude, degrees_north) ?          42.37717    42.37717
  < slider >
 longitude (sensor longitude, degrees_east) ?          -70.7845    -70.7845
  < slider >
 crs ?          -2147483647    -2147483647
 platform ?          -2147483647    -2147483647
 time (time of measurement, UTC) ?          1997-06-10T14:31:51Z    1997-09-23T10:43:06Z
  < slider >
 z (m) ?          -28.48702    -28.48702
 P_4023 (dbar) ?          36.64074    40.56025
 SDP_850 (dbar) ?          0.01043767    3.494924E7
 
Server-side Functions ?
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File type: (more information)

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station_id {
    String actual_range 
"MBAY_LT_5011p_a_d1_nc
MBAY_LT_5011p_a_d1_nc";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "Station ID";
  }
  feature_type_instance {
    String ioos_category "Identifier";
    String long_name "Identifier for each feature type instance";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 42.37717, 42.37717;
    String axis "Y";
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 42.377167;
    Float32 valid_min 42.377167;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -70.7845, -70.7845;
    String axis "X";
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max -70.7845;
    Float32 valid_min -70.7845;
  }
  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 "Identifier";
    String long_name "http://www.opengis.net/def/crs/EPSG/0/4326";
    Float64 semi_major_axis 6378137.0;
  }
  platform {
    Int32 actual_range -2147483647, -2147483647;
    String definition "http://mmisw.org/ont/ioos/definition/stationID";
    String ioos_category "Identifier";
    String ioos_code "5011p-a_d1";
    String long_name "USGS-CMG time-series data from the Long-term observations in Massachusetts Bay; Site A-Boston Harbor project, mooring 501 and package 5011p-a_d1. Measurements of currents and other oceanographic properties were made to assess the impact of sewage discharge from the proposed outfall site.";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: MBAY_LT - 501 - 5011p-a_d1";
    String type "fixed";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 8.65953111e+8, 8.75011386e+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";
  }
  z {
    Float32 actual_range -28.48702, -28.48702;
    String axis "Z";
    String FillValue "-9999.900390625";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "z of the sensor relative to the water surface";
    String positive "up";
    String standard_name "height";
    String units "m";
    Float32 valid_max -28.487019;
    Float32 valid_min -28.487019;
  }
  P_4023 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 36.64074, 40.56025;
    String ancillary_variables "platform";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4023;
    String FillValue "1.0000000409184788e+35";
    String FORTRAN_format "f10.3";
    String generic_name "pres";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Sea Water Pressure (average over burst)";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float32 sensor_depth 28.487;
    Float32 sensor_hab 2.165;
    String serial_number "P60005  ";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  SDP_850 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 0.01043767, 3.494924e+7;
    String ancillary_variables "platform";
    String cell_methods "time: standard_deviation";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 850;
    String FillValue "1.0000000409184788e+35";
    String FORTRAN_format "f10.5";
    String generic_name "pres";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Sea Water Pressure (standard deviation)";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float32 sensor_depth 28.487;
    Float32 sensor_hab 2.165;
    String serial_number "P60005  ";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    Int32 COMPOSITE 0;
    String contributor_name "B. Butman";
    String contributor_role "principalInvestigator";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String COORD_SYSTEM "GEOGRAPHICAL";
    String CREATION_DATE "31-Dec-2008 17:54:27";
    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 "2017-04-11T22:13:00Z";
    String date_issued "2017-04-11T22:13:00Z";
    String date_metadata_modified "2017-04-11T22:13:00Z";
    String date_modified "2017-04-11T22:13:00Z";
    Float64 DELTA_T 225.0;
    Int32 DEPTH_CONST 0;
    String DESCRIPT "MIDAS SYSTEM 1, BOSTON BASS.                                ";
    Int32 DRIFTER 0;
    Float64 Easternmost_Easting -70.7845;
    String experiment_name "MBAY_LT";
    String featureType "TimeSeries";
    Int32 FILL_FLAG 0;
    String geospatial_bounds "POINT(-70.78450012207031 42.377166748046875)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 42.37717;
    Float64 geospatial_lat_min 42.37717;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.7845;
    Float64 geospatial_lon_min -70.7845;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    String geospatial_vertical_positive "up";
    String geospatial_vertical_resolution "0";
    String geospatial_vertical_units "meters";
    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 20:19:17 2019: ncatted -a project,global,a,c,, CMG_Portal MBAY_LT/5011p-a_d1.nc
WATER_DEPTH related attributes corrected by adj_tripod_depth: Fri Oct 12 08:33:29 2007: ncap2 -s lon=-lon 5011p-a_d1.nc_old 5011p-a_d1.nc:Attributes and variable names adjusted to EPIC standard using fix_buoy_ts.m :BUOY file converted to netCDF using Signell's buoy2epic.exe :Original BUOY creation date was 09:29 NOV 12,'97
2017-04-11T22:13:00Z - pyaxiom - File created using pyaxiom
2024-12-12T10:34:45Z (local files)
2024-12-12T10:34:45Z https://cmgds.marine.usgs.gov/erddap/tabledap/MBAY_LT_5011p_a_d1_nc.html";
    String id "5011p-a_d1";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    String INST_TYPE "Paroscientific";
    String institution "Coastal and Marine Hazards and Resources Program, U.S. Geological Survey";
    String keywords "Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Conductivity, Earth Science > Oceans > Salinity/Density > Salinity";
    String keywords_vocabulary "GCMD Science Keywords";
    Float32 latitude 42.377167;
    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 -70.7845;
    Float32 magnetic_variation -16.0;
    Float64 MOORING 501;
    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)";
    String NCProperties "version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.17";
    Float64 Northernmost_Northing 42.37717;
    String original_filename "5011p-a_d1.nc";
    String original_folder "MBAY_LT";
    Int32 POS_CONST 0;
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Measurements of currents and other oceanographic properties were made to assess the impact of sewage discharge from the proposed outfall site.";
    String project_title "Long-term observations in Massachusetts Bay; Site A-Boston Harbor";
    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 225;
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 42.37717;
    String standard_name_vocabulary "CF-1.6";
    String start_time "97- VI -10  14.31.51";
    String stop_time "97- IX -23  10.43.06";
    String subsetVariables "station_id";
    String summary "MBAY_LT - 5011p-a_d1";
    String time_coverage_duration "PT9058275S";
    String time_coverage_end "1997-09-23T10:43:06Z";
    String time_coverage_start "1997-06-10T14:31:51Z";
    String title "MBAY_LT - 5011p-a_d1";
    String VAR_DESC "P:SDP";
    Float32 WATER_DEPTH 30.652018;
    String WATER_DEPTH_NOTE "water depth computed using mean pressure from 5011p-a1h_d1.nc - atmosphere (1013.3): (m) ";
    String WATER_MASS "?";
    Float64 Westernmost_Easting -70.7845;
  }
}

 

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.