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Dataset Title:	Nalaquq - Mudpoint
Institution:	Nalaquq, LLC (Dataset ID: mudpoint-1)
Range:	longitude = -162.23767 to -162.23767°E, latitude = 59.935516 to 59.935516°N, time = 2025-06-17T07:40:00Z to 2026-06-06T04:35:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  time {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.750146e+9, 1.7807205e+9;
    String axis "T";
    String calendar "gregorian";
    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";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 _FillValue NaN;
    Float64 actual_range 59.935517, 59.935517;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 _FillValue NaN;
    Float64 actual_range -162.237667, -162.237667;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  z {
    UInt32 _ChunkSizes 458;
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float64 _FillValue NaN;
    Float64 actual_range 0.0, 0.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Altitude";
    String positive "up";
    String standard_name "altitude";
    String units "m";
  }
  sea_surface_wave_mean_period {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 1.92, 21.2;
    String ancillary_variables "sea_surface_wave_mean_period_qc_agg sea_surface_wave_mean_period_qc_tests";
    String id "1135376";
    String ioos_category "Surface Waves";
    String long_name "Average Wave Period";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_mean_period";
    String standard_name "sea_surface_wave_mean_period";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_surface_wave_mean_period";
    String units "s";
  }
  sea_surface_wave_mean_period_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 4;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Average Wave Period QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_mean_period_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_mean_period_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22232911222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Average Wave Period QARTOD Individual Tests";
    String short_name "sea_surface_wave_mean_period_qc_tests";
    String standard_name "quality_flag";
  }
  sea_surface_wave_directional_spread {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 43.798, 80.989;
    String ancillary_variables "sea_surface_wave_directional_spread_qc_agg sea_surface_wave_directional_spread_qc_tests";
    String id "1135398";
    String ioos_category "Surface Waves";
    String long_name "Wave Directional Spread";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_directional_spread";
    String standard_name "sea_surface_wave_directional_spread";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_surface_wave_directional_spread";
    String units "degrees";
  }
  sea_surface_wave_directional_spread_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 3;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Wave Directional Spread QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_directional_spread_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_directional_spread_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22212913222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Wave Directional Spread QARTOD Individual Tests";
    String short_name "sea_surface_wave_directional_spread_qc_tests";
    String standard_name "quality_flag";
  }
  sea_surface_wave_directional_spread_at_variance_spectral_density_maximum {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 20.837, 80.989;
    String ancillary_variables "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_agg sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_tests";
    String id "1135390";
    String ioos_category "Statistics";
    String long_name "Dominant Wave Directional Spread";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum";
    String standard_name "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum";
    String standard_name_url "https://mmisw.org/ont/cf/parameter/sea_surface_wave_directional_spread_at_variance_spectral_density_maximum";
    String units "degrees";
  }
  sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 9;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Dominant Wave Directional Spread QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22292999222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Dominant Wave Directional Spread QARTOD Individual Tests";
    String short_name "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_tests";
    String standard_name "quality_flag";
  }
  sea_surface_wave_period_at_variance_spectral_density_maximum {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 1.42, 34.14;
    String ancillary_variables "sea_surface_wave_period_at_variance_spectral_density_maximum_qc_agg sea_surface_wave_period_at_variance_spectral_density_maximum_qc_tests";
    String id "1135385";
    String ioos_category "Statistics";
    String long_name "Dominant Wave Period";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String standard_name "sea_surface_wave_period_at_variance_spectral_density_maximum";
    String standard_name_url "https://mmisw.org/ont/cf/parameter/sea_surface_wave_period_at_variance_spectral_density_maximum";
    String units "s";
  }
  sea_surface_wave_period_at_variance_spectral_density_maximum_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 4;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Dominant Wave Period QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_period_at_variance_spectral_density_maximum_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_period_at_variance_spectral_density_maximum_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22242431222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Dominant Wave Period QARTOD Individual Tests";
    String short_name "sea_surface_wave_period_at_variance_spectral_density_maximum_qc_tests";
    String standard_name "quality_flag";
  }
  sea_surface_wave_significant_height {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.02, 5.0;
    String ancillary_variables "sea_surface_wave_significant_height_qc_agg sea_surface_wave_significant_height_qc_tests";
    String id "1135408";
    String ioos_category "Surface Waves";
    String long_name "Significant Wave Height";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_significant_height";
    String standard_name "sea_surface_wave_significant_height";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_surface_wave_significant_height";
    String units "m";
  }
  sea_surface_wave_significant_height_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 3;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Significant Wave Height QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_significant_height_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_significant_height_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22212913222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Significant Wave Height QARTOD Individual Tests";
    String short_name "sea_surface_wave_significant_height_qc_tests";
    String standard_name "quality_flag";
  }
  sea_surface_wave_from_direction {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.354, 360.0;
    String ancillary_variables "sea_surface_wave_from_direction_qc_agg sea_surface_wave_from_direction_qc_tests";
    String id "1135403";
    String ioos_category "Surface Waves";
    String long_name "Wave From Direction";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_from_direction";
    String standard_name "sea_surface_wave_from_direction";
    String standard_name_url "http://mmisw.org/ont/cf/parameter/sea_surface_wave_from_direction";
    String units "degrees";
  }
  sea_surface_wave_from_direction_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 4;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Wave From Direction QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_from_direction_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_from_direction_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22212999222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Wave From Direction QARTOD Individual Tests";
    String short_name "sea_surface_wave_from_direction_qc_tests";
    String standard_name "quality_flag";
  }
  sea_surface_wave_from_direction_at_variance_spectral_density_maximum {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.174, 360.0;
    String ancillary_variables "sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_agg sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_tests";
    String id "1135377";
    String ioos_category "Statistics";
    String long_name "Dominant Wave From Direction";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_wave_from_direction_at_variance_spectral_density_maximum";
    String standard_name "sea_surface_wave_from_direction_at_variance_spectral_density_maximum";
    String standard_name_url "https://mmisw.org/ont/cf/parameter/sea_surface_wave_from_direction_at_variance_spectral_density_maximum";
    String units "degrees";
  }
  sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_agg {
    UInt32 _ChunkSizes 4096;
    Int32 _FillValue -127;
    Int32 actual_range 1, 9;
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Dominant Wave From Direction QARTOD Aggregate Quality Flag";
    Int32 missing_value -127;
    String short_name "sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_agg";
    String standard_name "aggregate_quality_flag";
  }
  sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_tests {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue 0;
    Float64 actual_range 22212111222, 22292999222;
    String comment "11-character string with results of individual QARTOD tests. 1: Gap Test, 2: Syntax Test, 3: Location Test, 4: Gross Range Test, 5: Climatology Test, 6: Spike Test, 7: Rate of Change Test, 8: Flat-line Test, 9: Multi-variate Test, 10: Attenuated Signal Test, 11: Neighbor Test";
    String flag_meanings "PASS NOT_EVALUATED SUSPECT FAIL MISSING";
    Int32 flag_values 1, 2, 3, 4, 9;
    String ioos_category "Other";
    String long_name "Dominant Wave From Direction QARTOD Individual Tests";
    String short_name "sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_tests";
    String standard_name "quality_flag";
  }
  station {
    String _Unsigned "false";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String ioos_code "urn:ioos:station:us.ioos:mudpoint-1";
    String long_name "Nalaquq - Mudpoint";
    String short_name "mudpoint-1";
    String type "buoy";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station,longitude,latitude";
    String contributor_email "information@aoos.org,support@sofarocean.com";
    String contributor_name "Alaska Ocean Observing System (AOOS),Sofar";
    String contributor_role "sponsor,contributor";
    String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
    String contributor_url "http://www.aoos.org/,https://www.sofarocean.com";
    String Conventions "IOOS-1.2, CF-1.6, ACDD-1.3";
    String creator_country "United States";
    String creator_email "wjones.qinc@gmail.com";
    String creator_institution "Nalaquq, LLC";
    String creator_name "Nalaquq, LLC";
    String creator_sector "indigenous";
    String creator_type "institution";
    String creator_url "https://nalaquq.com/";
    String defaultDataQuery "sea_surface_wave_directional_spread_at_variance_spectral_density_maximum,sea_surface_wave_from_direction,sea_surface_wave_mean_period_qc_agg,sea_surface_wave_period_at_variance_spectral_density_maximum,sea_surface_wave_period_at_variance_spectral_density_maximum_qc_agg,sea_surface_wave_from_direction_qc_agg,sea_surface_wave_mean_period,sea_surface_wave_from_direction_at_variance_spectral_density_maximum,sea_surface_wave_directional_spread,sea_surface_wave_directional_spread_at_variance_spectral_density_maximum_qc_agg,sea_surface_wave_from_direction_at_variance_spectral_density_maximum_qc_agg,z,sea_surface_wave_directional_spread_qc_agg,time,sea_surface_wave_significant_height,sea_surface_wave_significant_height_qc_agg&time>=max(time)-3days";
    Float64 Easternmost_Easting -162.237667;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 59.935517;
    Float64 geospatial_lat_min 59.935517;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -162.237667;
    Float64 geospatial_lon_min -162.237667;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "up";
    String geospatial_vertical_units "m";
    String history 
"Downloaded from Backyard Buoys at https://backyardbuoys.org
2026-06-06T07:36:02Z https://backyardbuoys.org
2026-06-06T07:36:02Z http://erddap.sensors.ioos.us/tabledap/mudpoint-1.das";
    String id "mudpoint-1";
    String infoUrl "https://sensors.ioos.us/#metadata/139090/station";
    String institution "Nalaquq, LLC";
    String keywords "CF:sea_surface_wave_directional_spread, CF:sea_surface_wave_directional_spread_at_variance_spectral_density_maximum, CF:sea_surface_wave_from_direction, CF:sea_surface_wave_from_direction_at_variance_spectral_density_maximum, CF:sea_surface_wave_mean_period, CF:sea_surface_wave_period_at_variance_spectral_density_maximum, CF:sea_surface_wave_significant_height, GCMD:Earth Science > Oceans > Ocean Waves > Significant Wave Height, GCMD:Earth Science > Oceans > Ocean Waves > Wave Period, GCMD:Earth Science > Oceans > Ocean Waves > Wave Spectra, GCMD:Earth Science > Oceans > Ocean Waves > Wave Speed/Direction";
    String keywords_vocabulary "GCMD:GCMD Science Keywords, CF:NetCDF COARDS Climate and Forecast Standard Names";
    String license "https://creativecommons.org/licenses/by-nc/4.0/deed.en";
    String naming_authority "us.ioos";
    Float64 Northernmost_Northing 59.935517;
    String platform "buoy";
    String platform_name "Nalaquq - Mudpoint";
    String platform_vocabulary "https://mmisw.org/ont/ioos/platform";
    String processing_level "These data include the results of quality control tests performed by the data provider";
    String publisher_country "USA";
    String publisher_email "wisdom@aoos.org";
    String publisher_institution "Backyard Buoys";
    String publisher_name "Backyard Buoys";
    String publisher_sector "other";
    String publisher_type "institution";
    String publisher_url "https://backyardbuoys.org/";
    String references "https://nalaquq.com,https://backyardbuoys.org,";
    String sourceUrl "https://backyardbuoys.org";
    Float64 Southernmost_Northing 59.935517;
    String standard_name_vocabulary "CF Standard Name Table v93";
    String station_id "139090";
    String summary "Timeseries data from 'Nalaquq - Mudpoint' (mudpoint-1)";
    String time_coverage_end "2026-06-06T04:35:00Z";
    String time_coverage_start "2025-06-17T07:40:00Z";
    String title "Nalaquq - Mudpoint";
    Float64 Westernmost_Easting -162.237667;
  }
}

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.