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Dataset Title:  USGS-CMG time-series data: PONTCHARTRAIN - 514 - 5141v-a_d2 Subscribe RSS
Institution:  USGS Coastal and Marine Geology Program   (Dataset ID: 5141v-a_d2)
Range: longitude = -90.08237 to -90.08237°E, latitude = 30.1644 to 30.1644°N, altitude = -2.3 to -2.3m, time = 1998-01-18T16:28:07Z to 1998-05-05T14:31:52Z
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 {
  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 30.1644, 30.1644;
    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 30.1644;
    Float32 valid_min 30.1644;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -90.08237, -90.08237;
    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 -90.08237;
    Float32 valid_min -90.08237;
  }
  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;
  }
  platform {
    Int32 actual_range -2147483647, -2147483647;
    String definition "http://mmisw.org/ont/ioos/definition/stationID";
    String ioos_category "Unknown";
    String ioos_code "5141v-a_d2";
    String long_name "USGS-CMG time-series data from the Lake Pontchartrain Project project, mooring 514 and package 5141v-a_d2. A series of moored array studies to investigate the circulation and particle transport in Lake Pontchartrain.";
    String nodc_name "FIXED PLATFORM, MOORINGS";
    String short_name "USGS-CMG time-series data: PONTCHARTRAIN - 514 - 5141v-a_d2";
    String type "fixed";
  }
  time {
    UInt32 _ChunkSizes 1000;
    String _CoordinateAxisType "Time";
    Float64 actual_range 8.85140887e+8, 8.94378712e+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";
  }
  altitude {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float32 _FillValue -9999.9;
    Float32 actual_range -2.3, -2.3;
    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 -2.3;
    Float32 valid_min -2.3;
  }
  CD_310 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 0.00401783, 359.9883;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 359.9883;
    Float64 colorBarMinimum 0.00401783;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 310;
    String FORTRAN_format "f8.2 ";
    String generic_name "vdir ";
    String grid_mapping "crs";
    String interp_note "3 pad values interpolated.";
    String ioos_category "Unknown";
    String long_name "Current direction";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "BASS           ";
    String serial_number "Sys #2";
    String standard_name "direction_of_sea_water_velocity";
    String units "degree";
  }
  CS_300 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 4.728067e-5, 0.2708356;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 0.2708356;
    Float64 colorBarMinimum 4.7280668e-5;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 300;
    String FORTRAN_format "f8.2 ";
    String generic_name "vspd ";
    String grid_mapping "crs";
    String interp_note "3 pad values interpolated.";
    String ioos_category "Unknown";
    String long_name "Current speed";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "BASS           ";
    String serial_number "Sys #2";
    String standard_name "sea_water_speed";
    String units "m/s";
  }
  Werr_1201 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range -1.09398, 0.9893529;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 0.98935294;
    Float64 colorBarMinimum -1.0939801;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1201;
    String FORTRAN_format "F8.1";
    String generic_name "w ";
    String grid_mapping "crs";
    String interp_note "3 pad values interpolated.";
    String ioos_category "Unknown";
    String long_name "Error Velocity         ";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "BASS           ";
    String serial_number "Sys #2";
    String units "cm/s ";
  }
  comp_1406 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range 44.86074, 48.07863;
    String ancillary_variables "platform";
    Float64 AtoD_factor 0.00122;
    Float64 cal_A0 -7.42;
    Float64 cal_A1 88.68;
    Float64 cal_A2 5.33;
    Float64 cal_A3 -0.6;
    Float64 colorBarMaximum 48.078632;
    Float64 colorBarMinimum 44.860744;
    String comment "corrected for magnetic variation";
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1406;
    String FORTRAN_format "f10.3";
    String generic_name "comp";
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "Instrument Heading (BASS pods)";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "KVH Autocomp   ";
    String serial_number "0002";
    String standard_name "platform_orientation";
    String units "degree";
  }
  tiltx_4017 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range -10.24674, 4.336246;
    String ancillary_variables "platform";
    Float64 AtoD_factor 0.00122;
    Float64 cal_A 45.5178;
    Float64 cal_B -10.0307;
    Float64 cal_C -4.9672;
    Float64 cal_D 0.679;
    Float64 colorBarMaximum 4.3362465;
    Float64 colorBarMinimum -10.24674;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4017;
    String FORTRAN_format "f10.3";
    String generic_name "tilt";
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "TILT IN POD X-Z PLANE    ";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "Spectron       ";
    String serial_number "114";
    String units "degrees";
    Float64 voltage_divider_factor 1.2;
  }
  tilty_4018 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range -5.838853, 6.153895;
    String ancillary_variables "platform";
    Float64 AtoD_factor 0.00122;
    Float64 cal_A 44.823;
    Float64 cal_B -9.1642;
    Float64 cal_C -5.2559;
    Float64 cal_D 0.7004;
    Float64 colorBarMaximum 6.1538954;
    Float64 colorBarMinimum -5.8388534;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 4017;
    String FORTRAN_format "f10.3";
    String generic_name "tilt";
    String grid_mapping "crs";
    String ioos_category "Unknown";
    String long_name "TILT IN POD Y-Z PLANE    ";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "Spectron       ";
    String serial_number "114";
    String units "degrees";
    Float64 voltage_divider_factor 1.2;
  }
  u_1205 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range -0.2049946, 0.1629626;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 0.16296256;
    Float64 colorBarMinimum -0.20499462;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1205;
    String generic_name "u ";
    String grid_mapping "crs";
    String interp_note "3 pad values interpolated.";
    String ioos_category "Unknown";
    String long_name "Eastward (u) velocity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "BASS           ";
    String serial_number "Sys #2";
    String standard_name "eastward_sea_water_velocity";
    String units "m/s";
  }
  v_1206 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range -0.1610865, 0.2674786;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 0.26747862;
    Float64 colorBarMinimum -0.16108647;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1206;
    String generic_name "v ";
    String grid_mapping "crs";
    String interp_note "3 pad values interpolated.";
    String ioos_category "Unknown";
    String long_name "Northward (v) velocity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "BASS           ";
    String serial_number "Sys #2";
    String standard_name "northward_sea_water_velocity";
    String units "m/s";
  }
  w_1204 {
    UInt32 _ChunkSizes 1000;
    Float32 _FillValue -9999.9;
    Float32 actual_range -0.02635314, 0.03296437;
    String ancillary_variables "platform";
    Float64 colorBarMaximum 0.03296437;
    Float64 colorBarMinimum -0.026353143;
    String coordinates "time z latitude longitude";
    String coverage_content_type "physicalMeasurement";
    Int32 epic_code 1204;
    String generic_name "w ";
    String grid_mapping "crs";
    String interp_note "3 pad values interpolated.";
    String ioos_category "Unknown";
    String long_name "Upward (w) velocity";
    Float32 missing_value -9999.9;
    String platform "platform";
    Float32 sensor_depth 2.3;
    String sensor_type "BASS           ";
    String serial_number "Sys #2";
    String standard_name "upward_sea_water_velocity";
    String units "m/s";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=1|netcdflibversion=4.4.1.1|hdf5libversion=1.8.17";
    Float64 BASS_norm_factor 0.0293;
    Float64 BASS_zero_offset_A 7.2;
    Float64 BASS_zero_offset_B 106.8;
    Float64 BASS_zero_offset_C 34.08;
    Float64 BASS_zero_offset_D 5.31;
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "latitude, longitude, altitude, feature_type_instance";
    Int32 COMPOSITE 1;
    String contributor_name "R. Signell";
    String contributor_role "principalInvestigator";
    String Conventions "CF-1.6,ACDD-1.3, COARDS";
    String COORD_SYSTEM "GEOGRAPHICAL";
    String CREATION_DATE "20-Oct-1998 08:07:48";
    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_CMNT "Lake Ponchartrain Site B BASS MIDAS";
    String DATA_ORIGIN "USGS WHFC Sed Trans Grp";
    String DATA_TYPE "TIME";
    String date_created "2017-04-11T22:50:00Z";
    String date_issued "2017-04-11T22:50:00Z";
    String date_metadata_modified "2017-04-11T22:50:00Z";
    String date_modified "2017-04-11T22:50:00Z";
    String DELTA_T "225";
    Int32 DEPTH_CONST 0;
    String DESCRIPT "Lake Ponchartain BASS MIDAS";
    Int32 DRIFTER 0;
    Float64 Easternmost_Easting -90.08237;
    String EXPERIMENT "Lake Ponchartrain";
    String featureType "TimeSeries";
    Float64 FILL_FLAG 0.0;
    String geospatial_bounds "POINT(-90.08236694335938 30.164400100708008)";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 30.1644;
    Float64 geospatial_lat_min 30.1644;
    Float64 geospatial_lat_resolution 0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -90.08237;
    Float64 geospatial_lon_min -90.08237;
    Float64 geospatial_lon_resolution 0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max -2.3;
    Float64 geospatial_vertical_min -2.3;
    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 20:23:01 2019: ncatted -a project,global,a,c,, CMG_Portal PONTCHARTRAIN/5141v-a_d2.nc
18 pad values replaced by linear interpolations using EPIC_interp.m :Concatenation of files 5141Av-e_d2.nc and 5141Bv-clk_d2.nc
2017-04-11T22:50:00Z - pyaxiom - File created using pyaxiom
2024-05-26T15:18:15Z (local files)
2024-05-26T15:18:15Z https://geoport.usgs.esipfed.org/tabledap/5141v-a_d2.das";
    String history_1 "History of 5141Av-e_d2.nc : Variables u_1205, v_1206, w_1204, CD_310, CS_300, Werr_1201,  edited using rangedit.m to select Werr_1201 in the range -10 to 10.  :Trimmed using truncate.m to select records in the range 1170 to 20741.  :Calibrated and rotated by BASS2post.m, using BASSuvw  :Converted to netCDF by MIDAS.EXE v2.00";
    String history_2 "History of 5141Bv-clk_d2.nc : Clock fixed.  :Trimmed using truncate.m to select records in the range 1 to 20627.  :Calibrated and rotated by BASS2post.m, using BASSuvw  :Converted to netCDF by MIDAS.EXE v2.00";
    String id "5141v-a_d2";
    String infoUrl "https://stellwagen.er.usgs.gov/";
    String INST_TYPE "MIDAS";
    String institution "USGS Coastal and Marine Geology Program";
    String instrument_number "MIDAS2";
    String keywords "CD_310, comp_1406, crs, CS_300, feature_type_instance, latitude, longitude, platform, tiltx_4017, tilty_4018, time, u_1205, v_1206, w_1204, Werr_1201, z";
    String keywords_vocabulary "GCMD Science Keywords";
    Float64 latitude 30.164405833350287;
    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.";
    Float64 longitude -90.08236694335938;
    Float64 magnetic_variation 1.399999976158142;
    Float64 MOORING 514;
    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 30.1644;
    String original_filename "5141v-a_d2.nc";
    String original_folder "PONTCHARTRAIN";
    Float64 pod_misalignment_angle -5.0;
    Int32 POS_CONST 0;
    String PROJECT "ECMG";
    String project "U.S. Geological Survey Oceanographic Time-Series Data, CMG_Portal";
    String project_summary "A series of moored array studies to investigate the circulation and particle transport in Lake Pontchartrain.";
    String project_title "Lake Pontchartrain Project";
    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 30.1644;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String start_time "18-Jan-1998 16:28:07";
    String stop_time "05-May-1998 14:31:52";
    String subsetVariables "latitude, longitude, altitude, feature_type_instance";
    String summary "USGS-CMG time-series data from the Lake Pontchartrain Project project, mooring 514 and package 5141v-a_d2. A series of moored array studies to investigate the circulation and particle transport in Lake Pontchartrain.";
    String time_coverage_duration "PT9237825S";
    String time_coverage_end "1998-05-05T14:31:52Z";
    String time_coverage_resolution "PT225S";
    String time_coverage_start "1998-01-18T16:28:07Z";
    String title "USGS-CMG time-series data: PONTCHARTRAIN - 514 - 5141v-a_d2";
    String VAR_DESC "LON:u :v :CD :CS :w :Werr:comp:tiltx:tilty";
    String VAR_FILL "NaN";
    Float64 WATER_DEPTH 5.5;
    Float64 water_depth 5.5;
    String WATER_MASS "?";
    Float64 Westernmost_Easting -90.08237;
  }
}

 

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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