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Dataset Title:  Hui O Ka Wai Ola Water Quality Data Subscribe RSS
Institution:  Hui O Ka Wai Ola   (Dataset ID: hui_water_quality)
Range: longitude = -156.69278 to -156.56732°E, latitude = 20.792747 to 21.013058°N, time = 2016-06-14T18:03:00Z to 2018-05-18T20:23:00Z
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Subset | Data Access Form
 
Graph Type:  ?
X Axis: 
Y Axis: 
Color: 
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Constraints ? Optional
Constraint #1 ?
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Constraint #2 ?
       
       
       
       
       
 
Server-side Functions ?
 distinct() ?
? (" ")
 
Graph Settings
Marker Type:   Size: 
Color: 
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   Ascending: 
 
(Please be patient. It may take a while to get the data.)
 
Optional:
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and
or view the URL:
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    Click on the map to specify a new center point. ?
Zoom: 
[The graph you specified. Please be patient.]

 

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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.46592738e+9, 1.52667498e+9;
    String axis "T";
    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 actual_range 20.792747, 21.013058;
    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";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -156.69278, -156.567326;
    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";
  }
  location_id {
    String ioos_category "Identifier";
    String long_name "sampling site identifier";
  }
  location_name {
    String ioos_category "Location";
    String long_name "location name";
  }
  report_id {
    String ioos_category "Identifier";
    String long_name "sample identifier";
  }
  session {
    Byte actual_range 1, 39;
    String ioos_category "Identifier";
    String long_name "sampling session identifier";
  }
  sea_water_temperature {
    Float32 _FillValue -9999.0;
    Float32 actual_range 21.5, 29.3;
    Float64 colorBarMaximum 31.0;
    Float64 colorBarMinimum 21.0;
    String ioos_category "Temperature";
    String long_name "water temperature";
    String standard_name "sea_water_temperature";
    String units "Celsius";
  }
  sea_water_salinity {
    Float32 _FillValue -9999.0;
    Float32 actual_range 13.8, 39.1;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 10.0;
    String ioos_category "Salinity";
    String long_name "salinity";
    String standard_name "sea_water_salinity";
    String units "PSU";
  }
  sea_water_turbidity {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.34, 159.33;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Optical Properties";
    String long_name "turbidity";
    String standard_name "sea_water_turbidity";
    String units "NTU";
  }
  sea_water_ph_reported_on_total_scale {
    Float32 _FillValue -9999.0;
    Float32 actual_range 7.79, 8.4;
    Float64 colorBarMaximum 9.0;
    Float64 colorBarMinimum 7.0;
    String ioos_category "Other";
    String standard_name "sea_water_ph_reported_on_total_scale";
    String units "pH";
  }
  mass_concentration_of_oxygen_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 5.16, 8.12;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved O2";
    String long_name "dissolved oxygen concentration";
    String standard_name "mass_concentration_of_oxygen_in_sea_water";
    String units "milligrams/liter";
  }
  fractional_saturation_of_oxygen_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 78.8, 112.1;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved O2";
    String long_name "dissolved oxygen saturation";
    String standard_name "fractional_saturation_of_oxygen_in_sea_water";
    String units "%";
  }
  mass_concentration_of_nitrogen_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 39.98, 422.69;
    Float64 colorBarMaximum 400.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "total dissolved nitrogen";
    String standard_name "mass_concentration_of_nitrogen_in_sea_water";
    String units "micrograms/liter";
  }
  mass_concentration_of_phosphorus_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 3.53, 49.42;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "total dissolved phosphorus";
    String standard_name "mass_concentration_of_phosphorus_in_sea_water";
    String units "micrograms/liter";
  }
  mass_concentration_of_phosphate_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 1.87, 36.7;
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "phosphorus as orthophosphate";
    String standard_name "mass_concentration_of_phosphate_in_sea_water";
    String units "micrograms/liter";
  }
  mass_concentration_of_silicate_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 29.59, 2784.71;
    Float64 colorBarMaximum 3000.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "silicate";
    String standard_name "mass_concentration_of_silicate_in_sea_water";
    String units "micrograms/liter";
  }
  mass_concentration_of_nitrate_and_nitrite_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.1, 373.53;
    Float64 colorBarMaximum 400.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "nitrate plus nitrite";
    String standard_name "mass_concentration_of_nitrate_and_nitrite_in_sea_water";
    String units "micrograms/liter";
  }
  mass_concentration_of_ammonia_in_sea_water {
    Float32 _FillValue -9999.0;
    Float32 actual_range 0.28, 42.04;
    Float64 colorBarMaximum 50.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Dissolved Nutrients";
    String long_name "ammonia";
    String standard_name "mass_concentration_of_ammonia_in_sea_water";
    String units "micrograms/liter";
  }
  QA_comments {
    String ioos_category "Quality";
    String long_name "quality assurance issues or comments";
  }
 }
  NC_GLOBAL {
    String acknowledgement "The Pacific Islands Ocean Observing System (PacIOOS) is funded through the National Oceanic and Atmospheric Administration (NOAA) as a Regional Association within the U.S. Integrated Ocean Observing System (IOOS). PacIOOS is coordinated by the University of Hawaii School of Ocean and Earth Science and Technology (SOEST). Hui O Ka Wai Ola is a partnership between The Nature Conservancy (TNC) Hawaii, Maui Nui Marine Resource Council, and West Maui Ridge to Reef (R2R) Initiative and supported by NOAA Coral Reef Conservation Program, National Fish and Wildlife Foundation (NFWF), Lahainaluna High School, Maui County, and North Beach-West Maui Benefit Fund, Inc.";
    String cdm_data_type "Point";
    String comment "Please visit http://huiokawaiola.com for full methods and further information.";
    String contributor_name "John Maurer";
    String contributor_role "distributor";
    String Conventions "CF-1.6, ACDD-1.3";
    String creator_email "huiokawaiola@gmail.com";
    String creator_institution "Hui O Ka Wai Ola";
    String creator_name "Hui O Ka Wai Ola";
    String creator_type "institution";
    String creator_url "http://www.huiokawaiola.com";
    String date_created "2018-08-23";
    String date_issued "2018-08-23";
    String date_metadata_modified "2018-08-23";
    String date_modified "2018-08-23";
    String defaultDataQuery "&time>=max(time)-1week&time<=max(time)&orderBy(\"time\")";
    String defaultGraphQuery "longitude,latitude,sea_water_turbidity&time>=max(time)-1week&time<=max(time)&.draw=markers";
    Float64 Easternmost_Easting -156.567326;
    String featureType "Point";
    String geospatial_bounds "POLYGON ((20.5241 -156.7172, 21.0736 -156.7172, 21.0736 -155.9193, 20.5241 -155.9193, 20.5241 -156.7172))";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 21.013058;
    Float64 geospatial_lat_min 20.792747;
    Float64 geospatial_lat_resolution 0.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -156.567326;
    Float64 geospatial_lon_min -156.69278;
    Float64 geospatial_lon_resolution 0.0;
    String geospatial_lon_units "degrees_east";
    Float64 geospatial_vertical_max 0.0;
    Float64 geospatial_vertical_min 0.0;
    String geospatial_vertical_positive "up";
    Float64 geospatial_vertical_resolution 0.0;
    String geospatial_vertical_units "meters";
    String history 
"PacIOOS begins ingesting Hui O Ka Wai Ola data spreadsheets into PacIOOS ERDDAP data server (08/2018)
2018-09-23T20:24:37Z http://www.huiokawaiola.com
2018-09-23T20:24:37Z http://oos.soest.hawaii.edu/tabledap/hui_water_quality.das";
    String id "hui_water_quality";
    String infoUrl "http://www.huiokawaiola.com";
    String institution "Hui O Ka Wai Ola";
    String instrument "In Situ/Laboratory Instruments > Chemical Meters/Analyzers > > > Autoanalyzer, In Situ/Laboratory Instruments > Chemical Meters/Analyzers > > > pH Meters, In Situ/Laboratory Instruments > Conductivity Sensors, In Situ/Laboratory Instruments > Photon/Optical Detectors > > > Turbidity Meters, In Situ/Laboratory Instruments > Samplers > Bottles/Flasks/Jars, In Situ/Laboratory Instruments > Temperature/Humidity Sensors > > > Temperature Sensors";
    String instrument_vocabulary "GCMD Instrument Keywords";
    String ISO_Topic_Categories "climatologyMeteorologyAtmosphere, environment, health, oceans";
    String keyword_vocabulary "GCMD Science Keywords";
    String keywords "Earth Science > Oceans > Ocean Chemistry > Ammonia, Earth Science > Oceans > Ocean Chemistry > Marine Geochemistry, Earth Science > Oceans > Ocean Chemistry > Nitrate, Earth Science > Oceans > Ocean Chemistry > Nitrite, Earth Science > Oceans > Ocean Chemistry > Nitrogen, Earth Science > Oceans > Ocean Chemistry > Oxygen, Earth Science > Oceans > Ocean Chemistry > pH, Earth Science > Oceans > Ocean Chemistry > Phosphate, Earth Science > Oceans > Ocean Chemistry > Phosphorus, Earth Science > Oceans > Ocean Chemistry > Silicate, Earth Science > Oceans > Ocean Optics > Turbidity, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, Earth Science > Oceans > Water Quality, Earth Science > Oceans > Water Quality > Ocean Contaminants";
    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, University of Hawaii, PacIOOS, NOAA, State of Hawaii 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 locations "Continent > North America > United States Of America > Hawaii, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Maui";
    String locations_vocabulary "GCMD Location Keywords";
    String Metadata_Link "http://www.pacioos.hawaii.edu/metadata/hui_water_quality.html";
    String naming_authority "org.pacioos";
    Float64 Northernmost_Northing 21.013058;
    String platform "In Situ Land-based Platforms > Ocean Platform/Ocean Stations > Coastal Stations";
    String platform_vocabulary "GCMD Platform Keywords";
    String processing_level "provisional";
    String program "Hui O Ka Wai Ola";
    String project "Hui O Ka Wai Ola";
    String publisher_email "info@pacioos.org";
    String publisher_institution "University of Hawaii";
    String publisher_name "Pacific Islands Ocean Observing System (PacIOOS)";
    String publisher_type "group";
    String publisher_url "http://www.pacioos.hawaii.edu";
    String reference "Falinski, Kim, Dana Reed, Tova Callender, Emily Fielding, Robin Newbold, and Alana Yurkanin. (2018). Hui O Ka Wai Ola Water Quality Data [Data set]. Zenodo. http://doi.org/10.5281/zenodo.1173717";
    String source "in situ measurements and water samples";
    String sourceUrl "http://www.huiokawaiola.com";
    Float64 Southernmost_Northing 20.792747;
    String standard_name_vocabulary "CF Standard Name Table v39";
    String subsetVariables "location_id, location_name, longitude, latitude, session";
    String summary 
"The goal of the Hui O Ka Wai Ola (Association Of The Living Waters) citizen-science based water quality program is to increase the capacity for monitoring water quality in Maui coastal waters by generating reliable data to assess long-term water-quality conditions and detect temporal trends. These data augment the data produced by the Hawaii Department of Health (DOH) Clean Water Branch (CWB) beach monitoring program on Maui.
    
    Data are collected and analyzed every two or three weeks for physical and chemical parameters, including ocean salinity, pH, temperature, organic nutrients (nitrogen and phosphorous compounds), dissolved oxygen (DO), and total suspended sediment (TSS). Some water samples are immediately tested at mobile labs while others are processed for testing at University of Hawaii and/or other labs.
    
    Users of these data should cite the following publication:
    
    Falinski, Kim, Dana Reed, Tova Callender, Emily Fielding, Robin Newbold, and Alana Yurkanin. (2018). Hui O Ka Wai Ola Water Quality Data [Data set]. Zenodo. http://doi.org/10.5281/zenodo.1173717
    
    For further information, please visit:
    http://huiokawaiola.com";
    String time_coverage_end "2018-05-18T20:23:00Z";
    String time_coverage_start "2016-06-14T18:03:00Z";
    String title "Hui O Ka Wai Ola Water Quality Data";
    Float64 Westernmost_Easting -156.69278;
  }
}

 

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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