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Dataset Title:	Naknek - 2 co-located sensors
Institution:	Alaska Ocean Observing System (AOOS)   (Dataset ID: naknek-2-co-located-sensors)
Information:	Summary | License | FGDC | ISO 19115 | Metadata | Background | Make a graph

 

Variable	Optional Constraint #1		Optional Constraint #2		Minimum	Maximum
water_surface_above_dtl_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-4.4239799967	14.576239999999999
water_surface_above_mhhw_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-7.475027996700001	11.525191999999997
water_surface_above_mhw_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-7.0147799967	11.985439999999999
water_surface_above_mllw_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-1.3668359967	17.633384
water_surface_above_mlw_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-1.7600279967	17.240192
water_surface_above_msl_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-4.1527079967	14.847511999999998
water_surface_above_mtl_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-4.3904519966999995	14.609767999999999
water_surface_above_navd88_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-2.7445319967	16.255688
water_surface_above_dtl_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-3.7851900000000005	4.43722
water_surface_above_mhhw_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-6.836238000000001	1.3861719999999993
water_surface_above_mhw_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-6.37599	1.8464200000000002
water_surface_above_mllw_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-0.7280460000000001	7.494364
water_surface_above_mlw_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-1.121238	7.101172
water_surface_above_msl_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-3.5139180000000003	4.708492
water_surface_above_mtl_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-3.751662	4.470748
water_surface_above_navd88_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-2.1057420000000002	6.116668000000001
time (UTC)	!= =~ <= >= = < >		!= =~ <= >= = < >		2019-07-15T17:48:00Z	2026-08-14T23:18:00Z
latitude (degrees_north)	!= =~ <= >= = < >		!= =~ <= >= = < >		58.732056	58.732056
longitude (degrees_east)	!= =~ <= >= = < >		!= =~ <= >= = < >		-156.983333	-156.983333
z (Altitude, m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.0	0.0
water_surface_above_station_datum_bubbler (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		-0.2482199967	18.752
water_surface_above_station_datum_radar (m)	!= =~ <= >= = < >		!= =~ <= >= = < >		0.39057	8.61298
station (Naknek - 2 co-located sensors)	!= =~ <= >= = < >		!= =~ <= >= = < >

 

Server-side Functions

distinct()

orderBy orderByDescending orderByClosest orderByCount orderByLimit orderByMax orderByMin orderByMinMax orderByMean orderBySum (" water_surface_above_dtl_bubbler water_surface_above_mhhw_bubbler water_surface_above_mhw_bubbler water_surface_above_mllw_bubbler water_surface_above_mlw_bubbler water_surface_above_msl_bubbler water_surface_above_mtl_bubbler water_surface_above_navd88_bubbler water_surface_above_dtl_radar water_surface_above_mhhw_radar water_surface_above_mhw_radar water_surface_above_mllw_radar water_surface_above_mlw_radar water_surface_above_msl_radar water_surface_above_mtl_radar water_surface_above_navd88_radar time latitude longitude z water_surface_above_station_datum_bubbler water_surface_above_station_datum_radar station water_surface_above_dtl_bubbler water_surface_above_mhhw_bubbler water_surface_above_mhw_bubbler water_surface_above_mllw_bubbler water_surface_above_mlw_bubbler water_surface_above_msl_bubbler water_surface_above_mtl_bubbler water_surface_above_navd88_bubbler water_surface_above_dtl_radar water_surface_above_mhhw_radar water_surface_above_mhw_radar water_surface_above_mllw_radar water_surface_above_mlw_radar water_surface_above_msl_radar water_surface_above_mtl_radar water_surface_above_navd88_radar time latitude longitude z water_surface_above_station_datum_bubbler water_surface_above_station_datum_radar station water_surface_above_dtl_bubbler water_surface_above_mhhw_bubbler water_surface_above_mhw_bubbler water_surface_above_mllw_bubbler water_surface_above_mlw_bubbler water_surface_above_msl_bubbler water_surface_above_mtl_bubbler water_surface_above_navd88_bubbler water_surface_above_dtl_radar water_surface_above_mhhw_radar water_surface_above_mhw_radar water_surface_above_mllw_radar water_surface_above_mlw_radar water_surface_above_msl_radar water_surface_above_mtl_radar water_surface_above_navd88_radar time latitude longitude z water_surface_above_station_datum_bubbler water_surface_above_station_datum_radar station water_surface_above_dtl_bubbler water_surface_above_mhhw_bubbler water_surface_above_mhw_bubbler water_surface_above_mllw_bubbler water_surface_above_mlw_bubbler water_surface_above_msl_bubbler water_surface_above_mtl_bubbler water_surface_above_navd88_bubbler water_surface_above_dtl_radar water_surface_above_mhhw_radar water_surface_above_mhw_radar water_surface_above_mllw_radar water_surface_above_mlw_radar water_surface_above_msl_radar water_surface_above_mtl_radar water_surface_above_navd88_radar time latitude longitude z water_surface_above_station_datum_bubbler water_surface_above_station_datum_radar station water_surface_above_dtl_bubbler water_surface_above_mhhw_bubbler water_surface_above_mhw_bubbler water_surface_above_mllw_bubbler water_surface_above_mlw_bubbler water_surface_above_msl_bubbler water_surface_above_mtl_bubbler water_surface_above_navd88_bubbler water_surface_above_dtl_radar water_surface_above_mhhw_radar water_surface_above_mhw_radar water_surface_above_mllw_radar water_surface_above_mlw_radar water_surface_above_msl_radar water_surface_above_mtl_radar water_surface_above_navd88_radar time latitude longitude z water_surface_above_station_datum_bubbler water_surface_above_station_datum_radar station ")

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  water_surface_above_dtl_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -4.4239799967, 14.576239999999999;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (4.1758 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "DTL";
  }
  water_surface_above_mhhw_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -7.475027996700001, 11.525191999999997;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (7.2268 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MHHW";
  }
  water_surface_above_mhw_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -7.0147799967, 11.985439999999999;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (6.7666 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MHW";
  }
  water_surface_above_mllw_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -1.3668359967, 17.633384;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (1.1186 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MLLW";
  }
  water_surface_above_mlw_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -1.7600279967, 17.240192;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (1.5118 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MLW";
  }
  water_surface_above_msl_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -4.1527079967, 14.847511999999998;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (3.9045 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MSL";
  }
  water_surface_above_mtl_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -4.3904519966999995, 14.609767999999999;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (4.1422 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MTL";
  }
  water_surface_above_navd88_bubbler {
    Float64 _FillValue -9999.0;
    Float64 actual_range -2.7445319967, 16.255688;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (2.4963 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "NAVD88";
  }
  water_surface_above_dtl_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -3.7851900000000005, 4.43722;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (4.1758 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "DTL";
  }
  water_surface_above_mhhw_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -6.836238000000001, 1.3861719999999993;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (7.2268 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MHHW";
  }
  water_surface_above_mhw_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -6.37599, 1.8464200000000002;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (6.7666 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MHW";
  }
  water_surface_above_mllw_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -0.7280460000000001, 7.494364;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (1.1186 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MLLW";
  }
  water_surface_above_mlw_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -1.121238, 7.101172;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (1.5118 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MLW";
  }
  water_surface_above_msl_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -3.5139180000000003, 4.708492;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (3.9045 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MSL";
  }
  water_surface_above_mtl_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -3.751662, 4.470748;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (4.1422 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "MTL";
  }
  water_surface_above_navd88_radar {
    Float64 _FillValue -9999.0;
    Float64 actual_range -2.1057420000000002, 6.116668000000001;
    String conversion_note "Converted from 'station_datum' by adding the relative datum offset (2.4963 m).";
    String ioos_category "Other";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String units "m";
    String vertical_datum "NAVD88";
  }
  time {
    UInt32 _ChunkSizes 512;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.56321288e+9, 1.78674948e+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 58.732056, 58.732056;
    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 -156.983333, -156.983333;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  z {
    UInt32 _ChunkSizes 512;
    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";
  }
  water_surface_above_station_datum_bubbler {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range -0.2482199967, 18.752;
    String discriminant "Bubbler";
    String id "1147115";
    String ioos_category "Sea Level";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_height_above_sea_level";
    String standard_name "sea_surface_height_above_sea_level";
    String standard_name_url "https://vocab.nerc.ac.uk/standard_name/sea_surface_height_above_sea_level/";
    String units "m";
    String vertical_datum "Station Datum";
  }
  water_surface_above_station_datum_radar {
    UInt32 _ChunkSizes 512;
    Float64 _FillValue -9999.0;
    Float64 actual_range 0.39057, 8.61298;
    String discriminant "Radar";
    String id "1147114";
    String ioos_category "Sea Level";
    String long_name "Water Level";
    Float64 missing_value -9999.0;
    String platform "station";
    String short_name "sea_surface_height_above_sea_level";
    String standard_name "sea_surface_height_above_sea_level";
    String standard_name_url "https://vocab.nerc.ac.uk/standard_name/sea_surface_height_above_sea_level/";
    String units "m";
    String vertical_datum "Station Datum";
  }
  station {
    String _Unsigned "false";
    String cf_role "timeseries_id";
    String ioos_category "Identifier";
    String ioos_code "urn:ioos:station:us.ioos:naknek-2-co-located-sensors";
    String long_name "Naknek - 2 co-located sensors";
    String short_name "naknek-2-co-located-sensors";
    String type "fixed";
  }
 }
  NC_GLOBAL {
    String cdm_data_type "TimeSeries";
    String cdm_timeseries_variables "station,longitude,latitude";
    String contributor_email "information@aoos.org";
    String contributor_name "Alaska Ocean Observing System (AOOS)";
    String contributor_role "sponsor";
    String contributor_role_vocabulary "https://vocab.nerc.ac.uk/collection/G04/current/";
    String contributor_url "https://www.aoos.org/";
    String Conventions "IOOS-1.2, CF-1.6, ACDD-1.3";
    String creator_country "USA";
    String creator_email "information@aoos.org";
    String creator_institution "Alaska Ocean Observing System (AOOS)";
    String creator_name "Alaska Ocean Observing System (AOOS)";
    String creator_sector "ioos_ra";
    String creator_type "institution";
    String creator_url "https://www.aoos.org/";
    String defaultDataQuery "water_surface_above_station_datum_bubbler,z,time,water_surface_above_station_datum_radar&time>=max(time)-3days";
    Float64 Easternmost_Easting -156.983333;
    String featureType "TimeSeries";
    Float64 geospatial_lat_max 58.732056;
    Float64 geospatial_lat_min 58.732056;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -156.983333;
    Float64 geospatial_lon_min -156.983333;
    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 JOA Surveys, LLC
2026-08-15T06:36:03Z https://aoos.org/alaska-water-level-watch/
2026-08-15T06:36:03Z http://erddap.aoos.org/erddap/tabledap/naknek-2-co-located-sensors.html";
    String id "naknek-2-co-located-sensors";
    String infoUrl "https://portal.aoos.org/#metadata/139211/station";
    String institution "Alaska Ocean Observing System (AOOS)";
    String keywords "CF:sea_surface_height_above_sea_level, GCMD:Earth Science > Oceans > Sea Surface Topography > Sea Surface Height";
    String keywords_vocabulary "GCMD:GCMD Science Keywords, CF:NetCDF COARDS Climate and Forecast Standard Names";
    String license "These data may be used and redistributed for free but they are not intended for legal use since they may contain inaccuracies. For use for publications please reference the regional ocean observing system and/or NOAA. Neither the data provider, regional association, 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 naming_authority "us.ioos";
    Float64 Northernmost_Northing 58.732056;
    String platform "fixed";
    String platform_name "Naknek - 2 co-located sensors";
    String platform_vocabulary "https://mmisw.org/ont/ioos/platform";
    String processing_level "No quality control tests have been applied";
    String publisher_country "USA";
    String publisher_email "nathan@joasurveys.com";
    String publisher_institution "JOA Surveys, LLC";
    String publisher_name "JOA Surveys, LLC";
    String publisher_sector "industry";
    String publisher_type "institution";
    String publisher_url "https://joasurveys.com/";
    String references "https://aoos.org/alaska-water-level-watch/,,";
    String sourceUrl "https://aoos.org/alaska-water-level-watch/";
    Float64 Southernmost_Northing 58.732056;
    String standard_name_vocabulary "CF Standard Name Table v93";
    String station_id "139211";
    String summary "Timeseries data from 'Naknek - 2 co-located sensors' (naknek-2-co-located-sensors)";
    String time_coverage_end "2026-08-14T23:18:00Z";
    String time_coverage_start "2019-07-15T17:48:00Z";
    String title "Naknek - 2 co-located sensors";
    Float64 Westernmost_Easting -156.983333;
  }
}

 

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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 Data Access Protocol (DAP) and its selection constraints.

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.

 

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