Make A Graph

Dataset Title:	HUDSON_SVALLEY - 8164adv_2s-cal_z3
Institution:	Coastal and Marine Hazards and Resources Program, U.S. Geological Survey (Dataset ID: HUDSON_SVALLEY_8164adv_2s_cal_z3_nc)
Range:	longitude = -73.78505 to -73.78505°E, latitude = 40.39034 to 40.39034°N, time = 2006-04-10T00:09:53Z to 2006-06-07T10:09:53Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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Server-side Functions

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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 
"HUDSON_SVALLEY_8164adv_2s_cal_z3_nc
HUDSON_SVALLEY_8164adv_2s_cal_z3_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 40.39034, 40.39034;
    String axis "Y";
    String ioos_category "Location";
    String long_name "sensor latitude";
    String standard_name "latitude";
    String units "degrees_north";
    Float32 valid_max 40.390335;
    Float32 valid_min 40.390335;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -73.78505, -73.78505;
    String axis "X";
    String ioos_category "Location";
    String long_name "sensor longitude";
    String standard_name "longitude";
    String units "degrees_east";
    Float32 valid_max -73.78505;
    Float32 valid_min -73.78505;
  }
  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 "8164adv_2s-cal";
    String long_name "USGS-CMG time-series data from the Circulation and Sediment Transport in the Hudson Shelf Valley project, mooring 816 and package 8164adv_2s-cal. Field experiments have been carried out to understand the transport of sediments and associated contaminants in the Hudson Shelf Valley offshore of New York.";
    String short_name "USGS-CMG time-series data: HUDSON_SVALLEY - 816 - 8164adv_2s-cal";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.144627793e+9, 1.149674993e+9;
    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 {
    Float64 actual_range -36.9, -36.9;
    String axis "Z";
    String FillValue "-9999.9";
    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";
    Float64 valid_max -36.9;
    Float64 valid_min -36.9;
  }
  P_4023 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 47.32195, 49.50444;
    String ancillary_variables "platform";
    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";
    Float64 initial_sensor_height 2.0999999046325684;
    String ioos_category "Other";
    String long_name "Sea Water Pressure (average over burst)";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float64 sensor_depth 36.9;
    String sensor_type "ParosFreq";
    String serial "P69506";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
  SDP_850 {
    UInt32 _ChunkSizes 1000;
    Float32 actual_range 1.290576, 39.77114;
    String ancillary_variables "platform";
    Float32 cal_C 991.7185, -0.0086884, -1.23004e-4, 0.0;
    Float32 cal_D 0.036005, 0.0, 0.0, 0.0;
    Float32 cal_F0 1.2e+7;
    String cal_serialnum "P69506";
    Float32 cal_T 27.77643, -6.44352e-5, 9.71216e-7, 1.34311e-9, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0;
    Float32 cal_U0 0.0;
    Float32 cal_Y 0.0, 0.0, 0.0, 0.0;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1;
    String FillValue "-9999.900390625";
    String generic_name "pres";
    String grid_mapping "crs";
    Float64 initial_sensor_height 2.0999999046325684;
    String ioos_category "Other";
    String long_name "Sea Water Pressure";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float64 sensor_depth 36.9;
    String sensor_type "ParosFreq";
    String serial "P69506";
    String standard_name "sea_water_pressure";
    String units "dbar";
  }
 }
  NC_GLOBAL {
    Float64 ADVCalcSampleVolumeOffset 0.15969995117187497;
    String ADVDeploymentSetupADRComments "USGS 816 HSV A G343 master to ABSADV B245 117cm, Paros 69506 210cmCH1 Trans 289 181cm, CH2 OBS 2278 71 cm";
    Float64 ADVDeploymentSetupBeginDeployment 7.0, 4.0, 2006.0, 21.0, 58.0, 45.0, 60.0;
    Float64 ADVDeploymentSetupBurstInterval 3600.0;
    String ADVDeploymentSetupDeploymentName "816";
    Float64 ADVDeploymentSetupRecordedDataFlags 1.0, 1.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0;
    Float64 ADVDeploymentSetupSampleRate 4.0;
    Float64 ADVDeploymentSetupSamplesPerBurst 4096.0;
    String ADVDeploymentSetupSyncMode "Disable";
    String ADVProbeConfig "Ocean Probe";
    Float64 ADVProbeHeight 1.17;
    Float64 ADVProbeNbeams 3.0;
    Float64 ADVProbeSampInterval 3.0;
    Float64 ADVProbeSamplingVolumeOffset 18.0;
    String ADVProbeSerial "B245B";
    Float64 ADVProbeXmtRecDist 0.09000000357627869;
    Float64 ADVSampleVolumeOffset 18.0;
    String ADVType "10MHz_10cm";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station_id";
    String CompassInstalled "Yes";
    Float64 CompassOffset 0.0;
    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+SAMPLE";
    Float64 cpuSoftWareVerNum 8.5;
    String CREATION_DATE "12-Feb-2009 14:34:46";
    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 CTDInstalled "MicroCat CTD";
    String DATA_ORIGIN "USGS/WHFC";
    String DATA_TYPE "TIME+SAMPLE";
    String date_created "2017-04-11T22:05:00Z";
    String date_issued "2017-04-11T22:05:00Z";
    String date_metadata_modified "2017-04-11T22:05:00Z";
    String date_modified "2017-04-11T22:05:00Z";
    String DELTA_T "3600";
    String Deployment_date "9-apr-2006 21:20:00";
    Float32 DEPTH_CONST 0.0;
    String DESCRIPT "site HSV-A- head of canyon";
    Float64 dspSoftWareVerNum 4.1000000000000005;
    Float64 Easternmost_Easting -73.78505;
    String EXPERIMENT "Hudson Shelf Valley, spring 2006";
    String experiment_name "HUDSON_SVALLEY";
    String ExtPressInstalled "ParosFreq";
    String ExtSensorInstalled "Standard";
    String featureType "TimeSeries";
    Int32 FILL_FLAG 1;
    String geospatial_bounds "POINT(-73.78504943847656 40.39033508300781)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 40.39034;
    Float64 geospatial_lat_min 40.39034;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -73.78505;
    Float64 geospatial_lon_min -73.78505;
    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 20:17:51 2019: ncatted -a project,global,a,c,, CMG_Portal HUDSON_SVALLEY/8164adv_2s-cal_z3.nc
Trimmed using trunc_cdf,  SVN $Revision: 1096 $ to select records in the range 51 to 1453.  :converted by adv2nc 3.20; edited by fixbadadvvel 2.000000; Converted to netCDF via MATLAB by adr2cdf.m V7.1; cleanhydra v0.00 applied  deglitch1vector with nsd = 2.800000e+000; Brange and Vrange despiked with clean_adv_brange_vrange_crs.m on 07/06/06
2017-04-11T22:05:00Z - pyaxiom - File created using pyaxiom
2024-12-12T06:44:53Z (local files)
2024-12-12T06:44:53Z https://cmgds.marine.usgs.gov/tabledap/HUDSON_SVALLEY_8164adv_2s_cal_z3_nc.das";
    String id "8164adv_2s-cal_z3";
    String infoUrl "https://cmgds.marine.usgs.gov/ocean-time-series/";
    String INST_TYPE "Sontek ADV";
    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";
    Float64 latitude 40.39033333333333;
    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 -73.78505;
    Float32 magnetic_variation -13.216666;
    Float64 MOORING 816;
    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 40.39034;
    String original_filename "8164adv_2s-cal.nc";
    String original_folder "HUDSON_SVALLEY";
    Float32 POS_CONST 0.0;
    Float64 PressFreqOffset 21.0;
    String PressInstalled "No";
    Float64 PressOffset 0.0;
    Float64 PressScale 100000.0;
    Float64 PressScale_2 0.0;
    String PROJECT "Coastal and Marine Geology Program, Circulation and Sediment transport";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Field experiments have been carried out to understand the transport of sediments and associated contaminants in the Hudson Shelf Valley offshore of New York.";
    String project_title "Circulation and Sediment Transport in the Hudson Shelf Valley";
    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 RecorderInstalled "Yes";
    String Recovery_date "21-jun-2006 17:15:53";
    String SensorOrientation "down";
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 40.39034;
    String standard_name_vocabulary "CF-1.6";
    String start_time "10-Apr-2006 00:09:53";
    String stop_time "07-Jun-2006 10:09:53";
    String subsetVariables "station_id";
    String summary "HUDSON_SVALLEY - 8164adv_2s-cal_z3";
    String TempInstalled "Yes";
    String time_coverage_duration "PT5047200S";
    String time_coverage_end "2006-06-07T10:09:53Z";
    String time_coverage_start "2006-04-10T00:09:53Z";
    String title "HUDSON_SVALLEY - 8164adv_2s-cal_z3";
    String VAR_DESC "burst:u:v:w:USTD:VSTD:WSTD:u_min:v_min:w_min:u_max:v_max:w_max:CS:CD:AGC1:AGC2:AGC3:P:SDP:Tx:attn1:tran1:nep2:vrange:brange:Hdg:Ptch:Roll:HSD:PSD:RSD";
    Float32 VAR_FILL 1.0e+35;
    Float32 WATER_DEPTH 39.0;
    String WATER_MASS "?";
    Float64 Westernmost_Easting -73.78505;
  }
}

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.