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Dataset Title:  A01 Realtime Doppler Current Profile (ADCP)   RSS
Institution:  Department of Physical Oceanography, School of Marine Sciences, University of Maine   (Dataset ID: A01_doppler_rt)
Range: longitude = -70.5655 to -70.5655°E, latitude = 42.5232 to 42.5232°N, depth = 10.0 to 9.96921E36m, time = 2019-11-26T21:00:00Z to 2020-09-28T21:00:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background | Subset | Data Access Form
 
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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 {
  station {
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String long_name "A01 Massachusetts Bay Doppler";
    String short_name "A01";
    String standard_name "station_name";
  }
  mooring_site_desc {
    String ioos_category "Location";
    String long_name "Station Description";
  }
  water_depth {
    Float32 actual_range 65.0, 65.0;
    String description "ADCP current readings below this water depth are invalid. QC value of 3";
    String ioos_category "Location";
    String long_name "Water depth at station";
    String units "m";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.574802e+9, 1.6013268e+9;
    String axis "T";
    String calendar "gregorian";
    String cf_role "profile_id";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -70.5655, -70.5655;
    String axis "X";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 42.5232, 42.5232;
    String axis "Y";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float32 actual_range 10.0, 9.96921e+36;
    String axis "Z";
    Float64 colorBarMaximum 8000.0;
    Float64 colorBarMinimum -8000.0;
    String colorBarPalette "TopographyDepth";
    String ioos_category "Location";
    String long_name "Depth";
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  offset_time {
    Float64 _FillValue -999.0;
    Float64 actual_range -0.0, 0.0;
    Float64 colorBarMaximum 4000.0;
    Float64 colorBarMinimum -4000.0;
    String comment "Add to time for actual sensor reading";
    String ioos_category "Time";
    String long_name "Offset from regular time interval";
    String short_name "off_time";
    String standard_name "offset_time";
    String units "seconds";
    Float64 valid_range -3600.0, 3600.0;
  }
  current_u {
    Float32 _FillValue -9999.0;
    Float64 accuracy 0.5;
    Float32 actual_range -227.4836, 240.8168;
    String ancillary_variables "current_u_qc";
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String dependency "current_v";
    Float32 instrument_range -250.0, 250.0;
    String ioos_category "Currents";
    Float64 is_dead 0.0;
    String long_name "East Velocity Component";
    String measurement_type "Measured";
    Float64 precision 0.01;
    String short_name "U";
    String standard_name "eastward_sea_water_velocity";
    String units "cm/s";
    Float32 valid_range -250.0, 250.0;
  }
  current_u_qc {
    Byte _FillValue -128;
    Byte actual_range 0, 3;
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    String flag_meanings "quality_good out_of_range sensor_nonfunctional below_water_depth questionable";
    Byte flag_values 0, 1, 2, 3, 4;
    String intent "data_quality";
    String ioos_category "Quality";
    String long_name "East Velocity Component QC";
    String short_name "UQC";
    String standard_name "eastward_sea_water_velocity data_quality";
    String units "1";
    Byte valid_range -127, 127;
  }
  current_v {
    Float32 _FillValue -9999.0;
    Float64 accuracy 0.5;
    Float32 actual_range -209.2222, 166.2113;
    String ancillary_variables "current_v_qc";
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String dependency "current_u";
    Float32 instrument_range -250.0, 250.0;
    String ioos_category "Currents";
    Float64 is_dead 0.0;
    String long_name "North Velocity Component";
    String measurement_type "Measured";
    Float64 precision 0.01;
    String short_name "V";
    String standard_name "northward_sea_water_velocity";
    String units "cm/s";
    Float32 valid_range -250.0, 250.0;
  }
  current_v_qc {
    Byte _FillValue -128;
    Byte actual_range 0, 3;
    Float64 colorBarMaximum 5.0;
    Float64 colorBarMinimum 0.0;
    String flag_meanings "quality_good out_of_range sensor_nonfunctional below_water_depth questionable";
    Byte flag_values 0, 1, 2, 3, 4;
    String intent "data_quality";
    String ioos_category "Quality";
    String long_name "North Velocity Component QC";
    String short_name "VQC";
    String standard_name "northward_sea_water_velocity data_quality";
    String units "1";
    Byte valid_range -127, 127;
  }
 }
  NC_GLOBAL {
    String adcp_firmware_version "16.21";
    String adcp_manufacturer "RD Instruments";
    String adcp_model "WHS-300";
    String adcp_serial_number "RDIWK1901";
    String algorithm_ids "RDI_Raw_ADCP_Counts_To_UV_1.7:  26-Nov-2019 21:14:23";
    Int32 averaging_period 8;
    String averaging_period_units "Minutes";
    Int32 breakout_id 2;
    String buffer_type "doppler";
    String cdm_data_type "TimeSeriesProfile";
    String cdm_profile_variables "time";
    String cdm_timeseries_variables "station, longitude, latitude";
    String clock_time "Center of period";
    String contact "nealp@maine.edu,ljm@umeoce.maine.edu,bfleming@umeoce.maine.edu";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_email "nealp@maine.edu,ljm@umeoce.maine.edu,bfleming@umeoce.maine.edu";
    String creator_name "Neal Pettigrew";
    String creator_type "person";
    String creator_url "http://gyre.umeoce.maine.edu";
    Float64 deepest_valid_doppler_depth 59.7;
    Int32 delta_t 60;
    String depth_datum "Sea Level";
    Float64 Easternmost_Easting -70.5655;
    Float64 ending_julian_day_number 59120.83333333349;
    String ending_julian_day_string "2020-09-28 20:00:00";
    String featureType "TimeSeriesProfile";
    Float64 geospatial_lat_max 42.5232;
    Float64 geospatial_lat_min 42.5232;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -70.5655;
    Float64 geospatial_lon_min -70.5655;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 9.96921e+36;
    Float64 geospatial_vertical_min 10.0;
    String geospatial_vertical_positive "down";
    String geospatial_vertical_units "m";
    String goes_platform_id "04427630";
    String history 
"Wed Nov 27 01:56:45 2019: /usr/local/bin/ncrcat -d time,58813.8506944445,58819.8506944445 A0142.doppler.realtime.nc A0142.doppler.realtime.nc.new

2020-09-28T21:32:43Z (local files)
2020-09-28T21:32:43Z http://www.neracoos.org/tabledap/A01_doppler_rt.das";
    String id "A01-doppler";
    String infoUrl "http://www.neracoos.org";
    String institution "Department of Physical Oceanography, School of Marine Sciences, University of Maine";
    String institution_url "http://gyre.umeoce.maine.edu";
    String julian_day_convention "Julian date convention begins at 00:00:00 UTC on 17 November 1858 AD";
    String keywords "Accoustic Doppler Current Profiler, ADCP, Earth Science > Oceans, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Oxygen, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Optics > Turbidity, Earth Science > Oceans > Ocean Pressure > Sea Level Pressure, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Ocean Waves > Wave Period, Earth Science > Oceans > Ocean Winds > Surface Winds, eastward_sea_water_velocity, eastward_sea_water_velocity data_quality, northward_sea_water_velocity, northward_sea_water_velocity data_quality";
    String keywords_vocabulary "GCMD Science Keywords";
    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.";
    String long_name "A01 Massachusetts Bay Doppler";
    Float64 magnetic_variation -14.8;
    String mooring_site_id "A0142";
    String mooring_type "Slack";
    String naming_authority "edu.maine";
    Int32 nco_openmp_thread_number 1;
    String ndbc_site_id "44029";
    String neracoos_data_provider "UMO";
    Float64 Northernmost_Northing 42.5232;
    Int32 number_observations_per_hour 1;
    Int32 number_samples_per_observation 170;
    String position_datum "WGS 84";
    String processing "realtime";
    String project "NERACOOS";
    String project_url "http://gomoos.org";
    String publisher "NERACOOS";
    String publisher_email "info@neracoos.org";
    String publisher_name "Northeastern Regional Association of Coastal and Ocean Observing Systems (NERACOOS)";
    String publisher_phone "(603) 319 1785";
    String publisher_type "institution";
    String publisher_url "http://www.neracoos.org/";
    String rdi_depth "10";
    String references "http://gyre.umeoce.maine.edu/data/gomoos/buoy/doc/buoy_system_doc/buoy_system/book1.html";
    String short_name "A01";
    String source "Ocean Data Acquisition Systems (ODAS) Buoy";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 42.5232;
    String standard_name_vocabulary "CF Standard Name Table v29";
    Float64 starting_julian_day_number 58813.875;
    String starting_julian_day_string "2019-11-26 21:00:00";
    String station_name "A01";
    String station_photo "http://gyre.umeoce.maine.edu/gomoos/images/generic_buoy.png";
    String station_type "Surface Mooring";
    String subsetVariables "current_u_qc,current_v_qc,depth";
    String summary "Doppler Tests. Univseity of Maine data from ADCP.";
    String testOutOfDate "now-1days";
    String time_coverage_end "2020-09-28T21:00:00Z";
    String time_coverage_start "2019-11-26T21:00:00Z";
    String time_zone "UTC";
    String title "A01 Realtime Doppler Current Profile (ADCP)";
    String uscg_light_list_letter "A";
    String uscg_light_list_number "367";
    Int32 watch_circle_radius 45;
    Float64 Westernmost_Easting -70.5655;
  }
}

 

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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