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Dataset Title:  USGS-CMG time-series data: PV_SHELF07 - 842 - 8424pcs-cal Subscribe RSS
Institution:  USGS Coastal and Marine Geology Program   (Dataset ID: 8424pcs-cal_z2)
Range: longitude = -118.3542 to -118.3542°E, latitude = 33.70997 to 33.70997°N, altitude = -53.58 to -53.58m, time = 2007-12-05T00:51:17Z to 2008-02-28T22:51:16Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form | Files
Graph Type:  ?
X Axis: 
Y Axis: 
Constraints ? Optional
Constraint #1 ?
Constraint #2 ?
Server-side Functions ?
 distinct() ?
? ("Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.Hover here to see a list of options. Click on an option to select it.")
Graph Settings
Marker Type:   Size: 
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   
(Please be patient. It may take a while to get the data.)
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[The graph you specified. Please be patient.]


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 {
  feature_type_instance {
    String cf_role "timeseries_id";
    String ioos_category "Unknown";
    String long_name "Identifier for each feature type instance";
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 33.70997, 33.70997;
    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 33.70997;
    Float32 valid_min 33.70997;
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -118.3542, -118.3542;
    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 -118.354164;
    Float32 valid_min -118.354164;
  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 "";
    Float64 semi_major_axis 6378137.0;
  platform {
    Int32 actual_range -2147483647, -2147483647;
    String definition "";
    String ioos_category "Unknown";
    String ioos_code "8424pcs-cal";
    String long_name "USGS-CMG time-series data from the Palos Verdes Shelf 2007 project, mooring 842 and package 8424pcs-cal. Follow-up observations to evaluate how often coastal ocean processes move the DDT contaminated sediments near the White Point ocean outfalls.";
    String short_name "USGS-CMG time-series data: PV_SHELF07 - 842 - 8424pcs-cal";
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.196815877e+9, 1.204239076e+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";
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 _FillValue -9999.9;
    Float64 actual_range -53.58, -53.58;
    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";
    Float64 valid_max -53.58;
    Float64 valid_min -53.58;
  NEP2_56 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 0.01291039, 2.623007;
    String ancillary_variables "platform";
    Float32 cal_gain 0.33;
    Float64 colorBarMaximum 2.6230073;
    Float64 colorBarMinimum 0.012910388;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 56;
    String FORTRAN_format "F10.6";
    String generic_name "nephylometer";
    String grid_mapping "crs";
    Float64 initial_sensor_height 0.41999998688697815;
    String ioos_category "Unknown";
    String long_name "Backscatter Intensity";
    Float32 missing_value 1.0e+35;
    String platform "platform";
    Float64 sensor_depth 53.58;
    String sensor_type "nephylometer";
    String serial "OBS1428";
    String standard_name "backscatter_intensity";
    String units "v";
    String _NCProperties "version=1|netcdflibversion=|hdf5libversion=1.8.17";
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "latitude, longitude, altitude, feature_type_instance";
    Float64 CellSize 0.124;
    String CompassInstalled "Yes";
    Float64 CompassOffset 0.0;
    Int32 COMPOSITE 0;
    String contributor_name "M. Noble";
    String contributor_role "principalInvestigator";
    String Conventions "CF-1.6,ACDD-1.3, COARDS";
    Float64 cpuSoftwareVerNum 16.7;
    String CREATION_DATE "01-Jul-2008 16:25:56";
    String creator_email "";
    String creator_name "Rich Signell";
    String creator_phone "+1 (508) 548-8700";
    String creator_url "";
    String CTDInstalled "Yes";
    String DATA_ORIGIN "USGS WHSC and PSC Sed Trans Groups";
    String date_created "2017-04-11T22:53:00Z";
    String date_issued "2017-04-11T22:53:00Z";
    String date_metadata_modified "2017-04-11T22:53:00Z";
    String date_modified "2017-04-11T22:53:00Z";
    String DELTA_T "3600";
    String Deployment_date "04-dec-2007 23:54:00 GMT";
    Int32 DEPTH_CONST 1;
    String DESCRIPT "Sontek PCADP raw data burst file";
    Float32 DRIFTER 0.0;
    Float64 dspSoftwareVerNum 4.0;
    Float64 Easternmost_Easting -118.3542;
    String EXPERIMENT "2007-2008 PV BBL Experiment";
    String ExtPressInstalled "ParosFreq";
    String ExtSensorInstalled "Yes";
    String featureType "TimeSeries";
    Int32 FILL_FLAG 1;
    String geospatial_bounds "POINT(-118.35416412353516 33.70996856689453)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 33.70997;
    Float64 geospatial_lat_min 33.70997;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -118.3542;
    Float64 geospatial_lon_min -118.3542;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max -53.58;
    Float64 geospatial_vertical_min -53.58;
    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 "";
    String grid_mapping_name "latitude_longitude";
    Float64 grid_mapping_semi_major_axis 6378137.0;
    String history 
"Fri Nov  1 20:23:33 2019: ncatted -a project,global,a,c,, CMG_Portal PV_SHELF07/
ambiguity resolution applied, velocities rotated by pcadp2nc; SVN $Revision: 1082 $: Converted to netcdf by adp2cdf; SVN $Revision: 1082 $.; cleanhydra SVN $Revision: 1086 $ applied  thumbfinger with nsd = 10.000000; cleanhydra SVN $Revision: 1086 $ applied  deglitch1vector with nsd = 2.800000
2017-04-11T22:53:00Z - pyaxiom - File created using pyaxiom
2024-05-21T00:46:45Z (local files)
    String id "8424pcs-cal_z2";
    String infoUrl "";
    String INST_TYPE "Sontek PCADP";
    String institution "USGS Coastal and Marine Geology Program";
    String keywords "crs, feature_type_instance, latitude, longitude, NEP2_56, platform, time, z";
    String keywords_vocabulary "GCMD Science Keywords";
    Float32 latitude 33.70997;
    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 -118.354164;
    String LonLatDatum "NAD83";
    Float32 magnetic_variation 12.9;
    Float64 MOORING 842;
    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 =, Code =";
    Float64 Northernmost_Northing 33.70997;
    String NOTE "Tripod 842 recovered early (2/29/08) because floats had surfaced.";
    String original_filename "";
    String original_folder "PV_SHELF07";
    Float64 PCADPProbeBlankDistance 0.3;
    Float64 PCADPProbeFrequency 1500000.0;
    Float64 PCADPProbeHeight 1.045;
    Float64 PCADPProbeNbeams 3.0;
    Float64 PCADPProbeNpingsPerBeam 5.0;
    Float64 PCADPProbeProfMaxHorizVel 1.2156853167272907;
    Float64 PCADPProbeProfMaxVertVel 0.31464251282051287;
    Float64 PCADPProbeProfRange 1.044;
    Float64 PCADPProbeResMaxHorizVel 1.2156853167272907;
    Float64 PCADPProbeResMaxVertVel 0.7079456538461539;
    Float64 PCADPProbeSampInterval 5.0;
    String PCADPProbeSerial "H30";
    Float64 PCADPProbeSlantAngle 15.0;
    Float64 PCADPProbeXformMat 2638.0, -1319.0, -1319.0, 0.0, -2284.0, 2284.0, 353.0, 353.0, 353.0;
    Float64 PCADPUserSetupAvgInterval 1.0;
    Float64 PCADPUserSetupBurstInterval 3600.0;
    String PCADPUserSetupBurstMode "Enabled";
    Float64 PCADPUserSetupCellSize 0.124;
    Float64 PCADPUserSetupNcells 6.0;
    String PCADPUserSetupPCMode "Yes";
    Float64 PCADPUserSetupPingInterval 0.0;
    Float64 PCADPUserSetupProfileInterval 1.0;
    Float64 PCADPUserSetupProfilesPerBurst 1050.0;
    String platform_type "Tripod";
    Int32 POS_CONST 0;
    Float64 PressFreqOffset 21.0;
    String PressInstalled "No";
    Float64 PressOffset 0.0;
    Float64 PressScale 5.066549580791808e+16;
    Float64 PressScale_2 0.0;
    Float64 ProfilesPerBurst 1050.0;
    String PROJECT "USGS/EPA Palos Verdes";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "Follow-up observations to evaluate how often coastal ocean processes move the DDT contaminated sediments near the White Point ocean outfalls.";
    String project_title "Palos Verdes Shelf 2007";
    String publisher_email "";
    String publisher_name "Ellyn Montgomery";
    String publisher_phone "+1 (508) 548-8700";
    String publisher_url "";
    String RecorderInstalled "Yes";
    String Recovery_date "29-Feb-2008 00:05:00 GMT";
    String SensorOrientation "down";
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 33.70997;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String start_time "05-Dec-2007 00:51:17";
    String stop_time "28-Feb-2008 22:51:16";
    String subsetVariables "latitude, longitude, altitude, feature_type_instance";
    String summary "USGS-CMG time-series data from the Palos Verdes Shelf 2007 project, mooring 842 and package 8424pcs-cal. Follow-up observations to evaluate how often coastal ocean processes move the DDT contaminated sediments near the White Point ocean outfalls.";
    String TempInstalled "Yes";
    String time_coverage_duration "PT7423199S";
    String time_coverage_end "2008-02-28T22:51:16Z";
    String time_coverage_resolution "PT3600S";
    String time_coverage_start "2007-12-05T00:51:17Z";
    String title "USGS-CMG time-series data: PV_SHELF07 - 842 - 8424pcs-cal";
    String VAR_DESC "burst:u:v:w:USTD:VSTD:WSTD:u_min:v_min:w_min:u_max:v_max:w_max:CS:CD:ResU:ResV:ResW:AGC1:AGC2:AGC3:cor1:cor2:cor3:brange:Hdg:Ptch:Roll:HSD:PSD:RSD:P:SDP:Tx:attn1:tran1:nep2:CTDTMP:CTDCON:CTDSAL";
    Float32 VAR_FILL 1.0e+35;
    Float32 WATER_DEPTH 54.0;
    String WATER_MASS "?";
    Float64 Westernmost_Easting -118.3542;


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{?query}
For example,,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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