Make A Graph

Dataset Title:	BUZZ_BAY - 2861-AA
Institution:	Coastal and Marine Hazards and Resources Program, U.S. Geological Survey (Dataset ID: BUZZ_BAY_2861_AA_cdf)
Range:	longitude = -70.888 to -70.888°E, latitude = 41.57422 to 41.57422°N, time = 1984-09-06T14:33:45Z to 1984-10-22T16:26:15Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| 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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  station_id {
    String actual_range 
"BUZZ_BAY_2861_AA_cdf
BUZZ_BAY_2861_AA_cdf";
    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 41.57422, 41.57422;
    String axis "Y";
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 41.574223;
    Float32 valid_min 41.574223;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -70.888, -70.888;
    String axis "X";
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max -70.888;
    Float32 valid_min -70.888;
  }
  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 "2861-AA";
    String long_name "USGS-CMG time-series data from the Currents and Sediment Transport in Buzzards Bay project, mooring 286 and package 2861-AA. Investigation of the near-bottom circulation in Buzzards Bay and consequent transport of fine-grained sediments that may be contaminated with PCBs from inner New Bedford Harbor.";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: BUZZ_BAY - 286 - 2861-AA";
    String type "fixed";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 4.63329225e+8, 4.67310375e+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 -13.0, -13.0;
    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 -13.0;
    Float32 valid_min -13.0;
  }
  CD_310 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 0.11999, 359.962;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 310;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f8.2";
    String generic_name "vdir";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Current direction";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "direction_of_sea_water_velocity";
    String units "degree";
  }
  CS_300 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 0.0021109, 0.31322;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 300;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f8.2";
    String generic_name "vspd";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Current speed";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "sea_water_speed";
    String units "m/s";
  }
  C_50 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 3.78326, 4.3152;
    String ancillary_variables "platform";
    String code "R";
    String comment "not translated from mhos";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 50;
    String FillValue "-9999.900390625";
    String generic_name "con";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Conductivity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String serial_number "C-061";
    String standard_name "sea_water_electrical_conductivity";
    String units "S/m";
  }
  P_4022 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 21.7254, 23.7249;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4022;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f10.3";
    String generic_name "pres";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Sea Water Pressure (interval)";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  P_4023 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 21.724, 23.7273;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4023;
    String FillValue "-9999.900390625";
    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 -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  SDP_850 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 0.002142, 0.119381;
    String ancillary_variables "platform";
    String cell_methods "time: standard_deviation";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 850;
    String FillValue "-9999.900390625";
    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 -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  S_40 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 30.5921, 31.2537;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 40;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f10.2";
    String generic_name "sal";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Salinity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "sea_water_practical_salinity";
    String units "1e-3";
  }
  TRN_107 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 0.34667, 3.645;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 107;
    String FillValue "-9999.900390625";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "TRANSMISSOMETER VOLTAGE 7";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
  }
  T_20 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 14.54709, 20.04141;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 20;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f10.2";
    String generic_name "temp";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Water Temperature";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "sea_water_temperature";
    String units "degree_Celsius";
  }
  lowr_4003 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 2.0, 23.5296;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4003;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f10.3";
    String generic_name "rotor";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "LOWER ROTOR SPEED    ";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String units "cm/s";
  }
  tran_4010 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range -2.96876, 3.61814;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4010;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f10.3";
    String generic_name "trans";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "TRANSMISSION (VOLTS)     ";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String units "volts";
  }
  u_1205 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range -0.189514, 0.162898;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1205;
    String FillValue "-9999.900390625";
    String generic_name "u";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Eastward (u) velocity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "eastward_sea_water_velocity";
    String units "m/s";
  }
  upr_4001 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 2.0, 29.9675;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4001;
    String FillValue "-9999.900390625";
    String FORTRAN_format "f10.3";
    String generic_name "rotor";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "UPPER ROTOR SPEED     ";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String units "cm/s";
  }
  v_1206 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range -0.220483, 0.282862;
    String ancillary_variables "platform";
    String code "R";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1206;
    String FillValue "-9999.900390625";
    String generic_name "v";
    String grid_mapping "crs";
    String ioos_category "Other";
    String long_name "Northward (v) velocity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 13.0;
    String standard_name "northward_sea_water_velocity";
    String units "m/s";
  }
 }
  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 "09:05 25-APR-97";
    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";
    Int32 cycles 8848;
    String DATA_CMNT 
" B.B.- B.  SALINITY OK.  HEAVY SCRUB (NOT TRANS) OCT 8-14.  E.S.T.\r
";
    String DATA_ORIGIN "USGS/WHFC";
    String DATA_TYPE "TIME";
    String date_created "2017-04-11T21:26:00Z";
    String date_issued "2017-04-11T21:26:00Z";
    String date_metadata_modified "2017-04-11T21:26:00Z";
    String date_modified "2017-04-11T21:26:00Z";
    Int32 days 46;
    String DELTA_T 
"7.50 minutes\r
";
    Int32 DEPTH_CONST 0;
    String DESCRIPT "?";
    Int32 DRIFTER 0;
    Float64 Easternmost_Easting -70.888;
    String EXPERIMENT "?";
    String experiment_name "BUZZ_BAY";
    String featureType "TimeSeries";
    Int32 FILL_FLAG 0;
    String geospatial_bounds "POINT(-70.88800048828125 41.574222564697266)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 41.57422;
    Float64 geospatial_lat_min 41.57422;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.888;
    Float64 geospatial_lon_min -70.888;
    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 20:15:19 2019: ncatted -a project,global,a,c,, CMG_Portal BUZZ_BAY/2861-AA.cdf
Original file creation date was 14:51 SEP 22,'87\r
Converted to EPIC/NetCDF Fri Dec  6 15:00:04 1996

Original ascii file was a2861x01.ascChanged epic code 310 to 310 on Thu Apr 24 18:17:24 1997
Changed epic code 300 to 300 on Thu Apr 24 18:17:24 1997
Changed epic code 4020 to 4001 on Thu Apr 24 18:17:24 1997
Changed epic code 4028 to 4003 on Thu Apr 24 18:17:24 1997
Changed epic code 20 to 20 on Thu Apr 24 18:17:24 1997
Changed epic code 4026 to 4022 on Thu Apr 24 18:17:24 1997
Changed epic code 4027 to 4023 on Thu Apr 24 18:17:24 1997
Changed epic code 4025 to 850 on Thu Apr 24 18:17:24 1997
Changed epic code 107 to 107 on Thu Apr 24 18:17:24 1997

2017-04-11T21:26:00Z - pyaxiom - File created using pyaxiom
2024-12-12T06:22:30Z (local files)
2024-12-12T06:22:30Z https://cmgds.marine.usgs.gov/tabledap/BUZZ_BAY_2861_AA_cdf.das";
    String id "2861-AA";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    String INST_TYPE "C-061 ";
    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 41.574223;
    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 -70.888;
    String magnetic_variation_deg "-15.0";
    Float64 MOORING 286;
    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 41.57422;
    String original_filename "2861-AA.cdf";
    String original_folder "BUZZ_BAY";
    Int32 POS_CONST 0;
    String PROJECT "?";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Investigation of the near-bottom circulation in Buzzards Bay and consequent transport of fine-grained sediments that may be contaminated with PCBs from inner New Bedford Harbor.";
    String project_title "Currents and Sediment Transport in Buzzards Bay";
    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";
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 41.57422;
    String standard_name_vocabulary "CF-1.6";
    String start_time "06-Sep-1984 14:33:45";
    String stop_time "22-Oct-1984 16:26:15";
    String subsetVariables "station_id";
    String summary "BUZZ_BAY - 2861-AA";
    String time_coverage_duration "PT3981150S";
    String time_coverage_end "1984-10-22T16:26:15Z";
    String time_coverage_start "1984-09-06T14:33:45Z";
    String title "BUZZ_BAY - 2861-AA";
    String VAR_DESC "u v     upper lower vane compass temp int.p pres psdev nephylometer   ";
    Int32 WATER_DEPTH 14;
    String WATER_MASS "?";
    Float64 Westernmost_Easting -70.888;
    String WHOI_Buoy_Group_summary 
"2861-AA        start time =  6 Sep 1984  09:33:45  cycles = 8848
               stop  time = 22 Oct 1984  11:26:15  # days = 46
Expt. = 'USGS'  sampling interval = 7.50 minutes
Lat =  41.574223
Lon = -70.888000  File created:  14:51 SEP 22,'87
depth = 14m  Mag.var = -15.000000
#  Variable     Units        Codes Depth   Inst.   Minimum   Maximum
-- ------------ ------------ ----- ------- ------ --------- ---------
 1 TIME         SECONDS      T     
 2 U.1          CMS/SEC      R       13.00          -18.951    16.290
 3 V.1          CMS/SEC      R       13.00          -22.048    28.286
 4 VDIR.1       DEG          R       13.00            0.120   359.962
 5 VSPD.1       CMS/SEC      R       13.00            0.211    31.322
 6 INT_ROTOR1   CMS/SEC      R       13.00            2.000    29.967
 7 INT_ROTOR2   CMS/SEC      R       13.00            2.000    23.530
 8 TEMPERATURE  DEG.CELC     R       13.00           14.547    20.041
 9 PRESSURE-I   MILLIBARS    R       13.00         2172.538  2372.490
10 PRESSURE-B   MILLIBARS    R       13.00         2172.403  2372.733
11 PSDEV                     R       13.00            0.214    11.938
12 CONDUCTIVITY MHOS         R       13.00 C-061     37.833    43.152
13 SALINITY  14 TRANS1       VOLTS     15 TRANS2       VO  TIME is expressed as YEAR-MONTH-DAY  HOUR.MINUTE.SECOND
";
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(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.