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Dataset Title:  Oceanographic measurements obtained offshore of the Elwha River delta in
coordination with the Elwha River Restoration Project, Washington, USA, 2010-
2014, ELW12A5T01wh
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Institution:  USGS Coastal and Marine Geology Program   (Dataset ID: ELW12A5T01wh)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Files | Make a graph
 
Variable ?   Optional
Constraint #1 ?
Optional
Constraint #2 ?
   Minimum ?
   or a List of Values ?
   Maximum ?
 
 time (time of measurement, UTC) ?          2012-08-28T15:44:30Z    2013-01-21T22:39:30Z
  < slider >
 depth (DEPTH (M), m) ?          -5.882305    8.867695
  < slider >
 latitude (sensor latitude, degrees_north) ?      
   - +  ?
  < slider >
 longitude (sensor longitude, degrees_east) ?      
   - +  ?
  < slider >
 bindist (cm/s) ?          0.62    15.37
 u_1205 (Eastward Velocity, cm/s) ?          -138.6414    208.6265
 v_1206 (Northward Velocity, cm/s) ?          -52.49836    94.32342
 w_1204 (Vertical Velocity, cm/s) ?          -9.974846    18.93806
 Werr_1201 (Error Velocity, cm/s) ?          -27.28265    29.55819
 AGC_1202 (count) ?          49.75    234.75
 cor (count) ?          50.25    179.5
 PGd_1203 (Percent Good Pings, percent) ?          0.0    100.0
 Tx_1211 (degree_C) ?          7.41    11.6
 SV_80 (SOUND VELOCITY (M/S), m s-1) ?          1480.541    1495.771
 Hdg_1215 (INST Heading, degrees) ?          181.03    183.35
 Ptch_1216 (INST Pitch, degrees) ?          -2.03    -0.67
 Roll_1217 (INST Roll, degrees) ?          -1.37    -0.2
 P_1 (PRESSURE (DB), dbar) ?          7.184062    10.88564
 Or (boolean) ?      
   - +  ?
 VDD1 (battery voltage 1, volts) ?          15.73343    44.40887
 feature_type_instance ?      
   - +  ?
 profile_index ?          0    42131
 
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.Hover here to see a list of options. Click on an option to select it.")

File type: (more information)

(Documentation / Bypass this form ? )
 
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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.34616867e+9, 1.35880797e+9;
    String axis "T";
    String calendar "proleptic_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";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range -5.882305, 8.867695;
    String axis "Z";
    Float64 bin_count 60.0;
    Float64 bin_size 0.25;
    Float64 blanking_distance 0.25;
    Float64 center_first_bin 0.62;
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    Float64 epic_code 3.0;
    String ioos_category "Location";
    String long_name "DEPTH (M)";
    String positive "down";
    String source_name "z";
    String standard_name "depth";
    Float64 transducer_offset_from_bottom 1.12;
    String type "EVEN";
    String units "m";
    Float64 WATER_DEPTH 0.0;
    String WATER_DEPTH_datum "not yet assigned";
    String WATER_DEPTH_source "water_depth information not provided to rdi2cdf";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 48.15335, 48.15335;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String datum "NAD83";
    Float64 epic_code 500.0;
    String FORTRAN_format "F10.2";
    String generic_name "lat";
    String ioos_category "Location";
    String long_name "sensor latitude";
    String name "LAT";
    String standard_name "latitude";
    String type "EVEN";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -123.5593, -123.5593;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String datum "NAD83";
    Float64 epic_code 502.0;
    String FORTRAN_format "F10.2";
    String generic_name "lon";
    String ioos_category "Location";
    String long_name "sensor longitude";
    String name "LON";
    String standard_name "longitude";
    String type "EVEN";
    String units "degrees_east";
  }
  bindist {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 0.62, 15.37;
    Float32 bin_count 60.0;
    Float32 bin_size 0.25;
    Float32 blanking_distance 0.25;
    Float32 center_first_bin 0.62;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 0.0;
    String generic_name "bindist";
    String ioos_category "Unknown";
    String long_name "bin distance from instrument (m)";
    String name "bindist";
    String NOTE "distance is along profile from instrument head to center of bin";
    Float32 transducer_offset_from_bottom 1.12;
    String type "EVEN";
    String units "cm/s";
    Float32 WATER_DEPTH 10.474137;
    String WATER_DEPTH_datum "MSL";
    String WATER_DEPTH_source "water depth = MSL from pressure sensor";
  }
  u_1205 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range -138.6414, 208.6265;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1205.0;
    String generic_name "u";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Currents";
    String long_name "Eastward Velocity";
    String name "u";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "eastward_sea_water_velocity";
    String units "cm/s";
  }
  v_1206 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range -52.49836, 94.32342;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1206.0;
    String generic_name "v";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Currents";
    String long_name "Northward Velocity";
    String name "v";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "northward_sea_water_velocity";
    String units "cm/s";
  }
  w_1204 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range -9.974846, 18.93806;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1204.0;
    String generic_name "w";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Currents";
    String long_name "Vertical Velocity";
    String name "w";
    String NOTE "Calculated from the slant beams";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "upward_sea_water_velocity";
    String units "cm/s";
  }
  Werr_1201 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range -27.28265, 29.55819;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1204.0;
    String generic_name "Werr";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Statistics";
    String long_name "Error Velocity";
    String name "Werr";
    String NOTE "Calculated from the slant beams";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String units "cm/s";
    Float32 valid_range 0.0, 100.0;
  }
  AGC_1202 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 49.75, 234.75;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1202.0;
    String generic_name "AGC";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Statistics";
    String long_name "Average Echo Intensity (AGC)";
    String name "AGC";
    String NOTE "Calculated from the slant beams";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String units "count";
  }
  cor {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 50.25, 179.5;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1202.0;
    String generic_name "cor";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Statistics";
    String long_name "Slant Beam Average Corellation (cor)";
    String name "cor";
    String NOTE "Calculated from the slant beams";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String units "count";
    Float32 valid_range 0.0, 255.0;
  }
  PGd_1203 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 0.0, 100.0;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1203.0;
    String generic_name "PGd";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Unknown";
    String long_name "Percent Good Pings";
    String name "PGd";
    String NOTE "Percentage of good 4-beam solutions (Field #4)";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String units "percent";
    Float32 valid_range 0.0, 100.0;
  }
  Tx_1211 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 7.41, 11.6;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1211.0;
    String generic_name "temp";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Temperature";
    String long_name "instrument Transducer Temp.";
    String name "T";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "sea_water_temperature";
    String type "EVEN";
    String units "degree_C";
    Float32 valid_range 0.0, 40.0;
  }
  SV_80 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 1480.541, 1495.771;
    Float64 colorBarMaximum 1650.0;
    Float64 colorBarMinimum 1350.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 80.0;
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Currents";
    String long_name "SOUND VELOCITY (M/S)";
    String name "SV";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "speed_of_sound_in_sea_water";
    String type "EVEN";
    String units "m s-1";
    Float32 valid_range 1400.0, 1600.0;
  }
  Hdg_1215 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 181.03, 183.35;
    Float64 colorBarMaximum 400.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1215.0;
    String generic_name "hdg";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Unknown";
    String long_name "INST Heading";
    String name "Hdg";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "platform_orientation";
    String units "degrees";
    Float32 valid_range 0.0, 360.0;
  }
  Ptch_1216 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range -2.03, -0.67;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum -30.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1216.0;
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Unknown";
    String long_name "INST Pitch";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "platform_pitch_angle";
    String units "degrees";
    Float32 valid_range -20.0, 20.0;
  }
  Roll_1217 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range -1.37, -0.2;
    Float64 colorBarMaximum 30.0;
    Float64 colorBarMinimum -30.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1217.0;
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Unknown";
    String long_name "INST Roll";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "platform_roll_angle";
    String units "degrees";
    Float32 valid_range -20.0, 20.0;
  }
  P_1 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 7.184062, 10.88564;
    Float64 colorBarMaximum 5000.0;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    Float32 epic_code 1.0;
    String generic_name "depth";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Pressure";
    String long_name "PRESSURE (DB)";
    String name "P";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String standard_name "sea_water_pressure";
    String type "EVEN";
    String units "dbar";
    Float32 valid_range 0.0, 10000.0;
  }
  Or {
    Int16 _FillValue -32768;
    Int16 actual_range 1, 1;
    Float64 colorBarMaximum 1.5;
    Float64 colorBarMinimum 0.0;
    String coverage_content_type "physicalMeasurement";
    String generic_name "orientation";
    String height_depth_units "m";
    Float32 initial_sensor_height 1.12;
    String initial_sensor_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String ioos_category "Unknown";
    String long_name "ORIENATION 1=UP, 0=DOWN";
    String name "Or";
    Float32 sensor_depth 9.354137;
    String sensor_type "Workhorse ADCP";
    Float32 serial_number 15029.0;
    String units "boolean";
    Int16 valid_range 0, 1;
  }
  VDD1 {
    Float32 _FillValue 1.0e+35;
    Float32 actual_range 15.73343, 44.40887;
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Unknown";
    String long_name "battery voltage 1";
    String units "volts";
  }
  feature_type_instance {
    String cf_role "timeseries_id";
    String coverage_content_type "physicalMeasurement";
    String ioos_category "Identifier";
    String long_name "Feature Type Instance";
  }
  profile_index {
    Int32 actual_range 0, 42131;
    String cf_role "profile_id";
    String ioos_category "Identifier";
    String long_name "Profile Index";
  }
 }
  NC_GLOBAL {
    String _NCProperties "version=2,netcdf=4.7.4,hdf5=1.10.6";
    Float64 ADCP_serial_number 15029.0;
    String ADCPBinSize "0.25 M";
    Float64 beam_angle 20.0;
    Float64 bin_count 60.0;
    Float64 bin_size 0.25;
    Float64 blanking_distance 0.25;
    String cdm_data_type "TimeSeriesProfile";
    String cdm_profile_variables "profile_index";
    String cdm_timeseries_variables "feature_type_instance, latitude, longitude";
    Float64 center_first_bin 0.62;
    Float64 COMPOSITE 0.0;
    String Conventions "CF-1.6, ACDD-1.3, COARDS";
    String COORD_SYSTEM "GEOGRAPHIC";
    String creation_date "12-Mar-2017 13:55:02";
    String creator_name "USGS Coastal and Marine Geology Program";
    String creator_type "institution";
    String creator_url "https://www.usgs.gov/";
    String CruiseID "T-R3-12-PS";
    String DATA_CMNT "' '";
    String DATA_ORIGIN "USGS/PCMSC";
    String DATA_SUBTYPE "MOORED";
    String DATA_TYPE "ADCP";
    String datasetID "ELW12A5T01wh";
    String date_created "2017-03-12T13:55:02Z";
    String DELTA_T "300";
    String Deployment_date "28-Aug-2012 15:43:30";
    Float64 DEPTH_CONST 0.0;
    String depth_note "uplooking bin depths = gatt.WATER_DEPTH-gatt.transducer_offset_from_bottom-bindist";
    Float64 DRIFTER 0.0;
    Float64 Easternmost_Easting -123.5593;
    String EXPERIMENT "Elwha River Dam Removal";
    String experiment_id "ELW12";
    String featureType "TimeSeriesProfile";
    Float64 FILL_FLAG 0.0;
    Float64 geospatial_lat_max 48.15335;
    Float64 geospatial_lat_min 48.15335;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -123.5593;
    Float64 geospatial_lon_min -123.5593;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 8.867695;
    Float64 geospatial_vertical_min -5.882305;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String history 
"Imported from ScienceBase data release and converted to CF using process_F7CR5RW8.ipynb; Workhorse Sentinel data processed by TRDI Velocity software; concatenated by catEPIC_jtf
2024-02-21T18:00:05Z (local files)
2024-02-21T18:00:05Z https://geoport.usgs.esipfed.org/erddap/tabledap/ELW12A5T01wh.html";
    String id "ELW12A5T01wh";
    String infoUrl "https://doi.org/10.5066/F7CR5RW8";
    Float64 initial_instrument_height 1.12;
    String initial_instrument_height_note "height in meters above bottom: accurate for tripod mounted instruments";
    String INST_TYPE "Workhorse ADCP";
    String institution "USGS Coastal and Marine Geology Program";
    String keywords "2010-2014, acoustic, acoustics, adcp, agc, AGC_1202, angle, average, battery, beam, bin, bindist, circulation, coastal, common, conductivity, coordination, cor, corellation, ctd, current, currents, data, delta, depth, distance, doppler, down, earth, Earth Science > Oceans > Ocean Acoustics > Acoustic Velocity, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Pressure > Water Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, eastward, eastward_sea_water_velocity, echo, elw12a5t01wh, elwha, error, feature, feature_type_instance, format, geological, geology, good, Hdg_1215, heading, identifier, index, inst, instance, instrument, intensity, latitude, longitude, marine, measurement, measurements, network, northward, northward_sea_water_velocity, obtained, ocean, oceanographic, oceanography, oceans, offshore, orienation, orientation, P_1, percent, PGd_1203, pings, pitch, platform, platform_orientation, platform_pitch_angle, platform_roll_angle, pressure, profile, profile_index, profiler, program, project, Ptch_1216, restoration, river, roll, Roll_1217, science, sea, sea_water_pressure, sea_water_temperature, seawater, sediment transport, sensor, slant, sonde, sound, speed, speed_of_sound_in_sea_water, states, statistics, survey, SV_80, temperature, time, transducer, Tx_1211, type, u_1205, united, upward, upward_sea_water_velocity, usa, usgs, v_1206, VDD1, velocity, vertical, voltage, w_1204, washington, water, Werr_1201, with";
    String keywords_vocabulary "GCMD Science Keywords";
    Float64 latitude 48.15335;
    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 -123.5593;
    Float64 magnetic_variation 16.9;
    Float64 magnetic_variation_applied 16.9;
    String magnetic_variation_applied_note "as stated by user, not provided by Velocity processing";
    Float64 magnetic_variation_at_site 16.9;
    String metadata_link "https://doi.org/10.5066/F7CR5RW8";
    String metafile_author "JFerreira";
    Float64 metafile_version 1.0;
    String MOORING "ELW12A5T";
    String naming_authority "gov.usgs.cmgp";
    Float64 nominal_instrument_depth 9.354137459240325;
    Float64 nominal_sensor_depth 9.354137459240324;
    String nominal_sensor_depth_note "inst_depth = (water_depth - inst_height); nominal depth below surface, meters";
    Float64 Northernmost_Northing 48.15335;
    String orientation "UP";
    String orientation_note "deployed orientation given by user";
    String platform_type "Tripod";
    Float64 POS_CONST 0.0;
    String program "Puget Sound";
    String project "CMG_Portal";
    String publisher_url "https://www.usgs.gov/";
    String Recovery_date "21-Jan-2013 22:44:30";
    String Region "Puget Sound";
    String SciPi "Jonathan Warrick";
    Float64 serial_number 15029.0;
    String Site "A5T";
    Float64 slow_by 0.0;
    String source "USGS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 48.15335;
    String standard_name_vocabulary "CF Standard Name Table v66";
    String subsetVariables "latitude, longitude, Or, feature_type_instance";
    String summary 
"Oceanographic measurements obtained offshore of the Elwha River delta in coordination with the Elwha River Restoration Project, Washington, USA, 2010-2014 - ELW12A5T01wh. First Release: Aug 2017
Revised: May 2018 (ver. 1.1)

Time-series data of velocity, pressure, turbidity, conductivity, and temperature were collected near the mouth of the Elwha River, Washington, USA, from December 2010 through October 2014, for the Department of Interior's Elwha River Restoration project. As part of this project, the U.S. Geological Survey studied the effects of renewed sediment supplies on the coastal ecosystems before, during, and following the removal of two dams, Elwha and Glines Canyon, from the Elwha River. Removal of the dams reintroduced sediment stored in the reservoirs to the river, and the river moved much of this sediment to the coast. 
 
Several benthic tripods were instrumented with oceanographic sensors to collect the time-series data. Initial deployment in December 2010 consisted of one tripod about 1 km east of the Elwha River mouth (Tripod A). In March of 2011, an identical tripod (Tripod B) was placed about 1 km west of the river mouth. A mooring was added to the western site in July 2012 to measure turbidity and conductivity near the surface. A third tripod was placed in deeper water (50 m) directly offshore of the river mouth in an attempt to characterize sediment gravity flows near the seafloor if they occurred (Tripod C). Exceptional sedimentation was observed near the original tripod site A during the winter of 2013-2014. As a result, the tripod was relocated further east in April 2013 and renamed Tripod D.

Please check metadata and instrument information carefully for applicable time periods of specific data, as individual instrument deployment times and duration of the time series vary.

The naming convention for the Network Common Data Format (NetCDF) files included in this release is a 12-character alphanumeric code (ELWYYJKLNNXX.nc) where:

ELW is a 3-digit alphabetic-code for this experiment located at the mouth of the Elwha River
YY is the 2 digit year at the time of deployment
J is the location with respect to the river mouth [A, East (December 2010 to April 2013); B, West; C, Offshore; D, East (April 2013 to March 2014)]
K is the deployment number (1-9; beginning and ending dates of each deployment are given below)
L is the instrument package type (T, tripod; M, surface mooring)
NN indicates the position of instrument on the surface mooring (01, nearest the surface; NN increases with depth)
XX denotes the instrument or data type (wh, RDInstruments Acoustic Doppler Current Profiler (ADCP) current data; wv, RDInstruments ADCP derived wave parameters; nx, Falmouth Scientific NXIC Conductivity, Temperature, Depth (CTD); aq, Aquatec Aqualogger OBS; bl, RBR, Ltd CTD; sc, SeaBird Electonics SBE16+ CT)

Some derived parameters are included in these data.

Deployment dates:
1. Dec 2010 to Mar 2011
2. Mar 2011 to Sep 2011
3. Sep 2011 to Mar 2012
4. Mar 2012 to Aug 2012
5. Aug 2012 to Jan 2013
6. Jan 2013 to Jun 2013
7. Jun 2013 to Dec 2013
8. Dec 2013 to Mar 2014
9. Mar 2014 to Oct 2014";
    String time_coverage_duration "P146DT6H55M0S";
    String time_coverage_end "2013-01-21T22:39:30Z";
    String time_coverage_resolution "P0DT0H5M0S";
    String time_coverage_start "2012-08-28T15:44:30Z";
    String title "Oceanographic measurements obtained offshore of the Elwha River delta in coordination with the Elwha River Restoration Project, Washington, USA, 2010-2014, ELW12A5T01wh";
    Float64 transducer_offset 1.12;
    Float64 transducer_offset_from_bottom 1.12;
    String transform "EARTH";
    String VAR_DESC "bindist:u_1205:v_1206:w_1204:Werr_1201:AGC_1202:cor:PGd_1203:Tx_1211:SV_80:Hdg_1215:Ptch_1216:Roll_1217:P_1:Or:VDD1";
    Float64 VAR_FILL 1.0e+35;
    Float64 WATER_DEPTH 10.474137459240325;
    String WATER_DEPTH_datum "MSL";
    String WATER_DEPTH_SOURCE "Ships Echosounder";
    String WATER_DEPTH_source "water depth = MSL from pressure sensor";
    Float64 Westernmost_Easting -123.5593;
  }
}

 

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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