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ERDDAP > info > hui_water_quality

Title Sum-
Institution Dataset ID
   set  data   graph     Hui O Ka Wai Ola Water Quality Data    ?   F   I   M   background (external link) RSS Subscribe Hui O Ka Wai Ola hui_water_quality

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL acknowledgement String 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.
attribute NC_GLOBAL cdm_data_type String Point
attribute NC_GLOBAL comment String Please visit for full methods and further information.
attribute NC_GLOBAL contributor_name String John Maurer
attribute NC_GLOBAL contributor_role String distributor
attribute NC_GLOBAL Conventions String CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String huiokawaiola at
attribute NC_GLOBAL creator_institution String Hui O Ka Wai Ola
attribute NC_GLOBAL creator_name String Hui O Ka Wai Ola
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL date_created String 2018-08-23
attribute NC_GLOBAL date_issued String 2018-08-23
attribute NC_GLOBAL date_metadata_modified String 2018-08-23
attribute NC_GLOBAL date_modified String 2018-08-23
attribute NC_GLOBAL defaultDataQuery String &time>=max(time)-1week&time<=max(time)&orderBy("time")
attribute NC_GLOBAL defaultGraphQuery String longitude,latitude,sea_water_turbidity&time>=max(time)-1week&time<=max(time)&.draw=markers
attribute NC_GLOBAL Easternmost_Easting double -156.567326
attribute NC_GLOBAL featureType String Point
attribute NC_GLOBAL geospatial_bounds String POLYGON ((20.5241 -156.7172, 21.0736 -156.7172, 21.0736 -155.9193, 20.5241 -155.9193, 20.5241 -156.7172))
attribute NC_GLOBAL geospatial_bounds_crs String EPSG:4326
attribute NC_GLOBAL geospatial_lat_max double 21.013058
attribute NC_GLOBAL geospatial_lat_min double 20.792747
attribute NC_GLOBAL geospatial_lat_resolution double 0.0
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -156.567326
attribute NC_GLOBAL geospatial_lon_min double -156.69278
attribute NC_GLOBAL geospatial_lon_resolution double 0.0
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 0.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
attribute NC_GLOBAL geospatial_vertical_positive String up
attribute NC_GLOBAL geospatial_vertical_resolution double 0.0
attribute NC_GLOBAL geospatial_vertical_units String meters
attribute NC_GLOBAL history String PacIOOS begins ingesting Hui O Ka Wai Ola data spreadsheets into PacIOOS ERDDAP data server (08/2018)
attribute NC_GLOBAL id String hui_water_quality
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String Hui O Ka Wai Ola
attribute NC_GLOBAL instrument String 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
attribute NC_GLOBAL instrument_vocabulary String GCMD Instrument Keywords
attribute NC_GLOBAL ISO_Topic_Categories String climatologyMeteorologyAtmosphere, environment, health, oceans
attribute NC_GLOBAL keyword_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL keywords String 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
attribute NC_GLOBAL license String 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.
attribute NC_GLOBAL locations String Continent > North America > United States Of America > Hawaii, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Maui
attribute NC_GLOBAL locations_vocabulary String GCMD Location Keywords
attribute NC_GLOBAL Metadata_Link String (external link)
attribute NC_GLOBAL naming_authority String org.pacioos
attribute NC_GLOBAL Northernmost_Northing double 21.013058
attribute NC_GLOBAL platform String In Situ Land-based Platforms > Ocean Platform/Ocean Stations > Coastal Stations
attribute NC_GLOBAL platform_vocabulary String GCMD Platform Keywords
attribute NC_GLOBAL processing_level String provisional
attribute NC_GLOBAL program String Hui O Ka Wai Ola
attribute NC_GLOBAL project String Hui O Ka Wai Ola
attribute NC_GLOBAL publisher_email String info at
attribute NC_GLOBAL publisher_institution String University of Hawaii
attribute NC_GLOBAL publisher_name String Pacific Islands Ocean Observing System (PacIOOS)
attribute NC_GLOBAL publisher_type String group
attribute NC_GLOBAL publisher_url String (external link)
attribute NC_GLOBAL reference String 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.
attribute NC_GLOBAL source String in situ measurements and water samples
attribute NC_GLOBAL sourceUrl String (external link)
attribute NC_GLOBAL Southernmost_Northing double 20.792747
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v39
attribute NC_GLOBAL subsetVariables String location_id, location_name, longitude, latitude, session
attribute NC_GLOBAL summary String 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.

For further information, please visit:
attribute NC_GLOBAL time_coverage_end String 2018-05-18T20:23:00Z
attribute NC_GLOBAL time_coverage_start String 2016-06-14T18:03:00Z
attribute NC_GLOBAL title String Hui O Ka Wai Ola Water Quality Data
attribute NC_GLOBAL Westernmost_Easting double -156.69278
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.46592738E9, 1.52667498E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double 20.792747, 21.013058
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -156.69278, -156.567326
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable location_id   String  
attribute location_id ioos_category String Identifier
attribute location_id long_name String sampling site identifier
variable location_name   String  
attribute location_name ioos_category String Location
attribute location_name long_name String location name
variable report_id   String  
attribute report_id ioos_category String Identifier
attribute report_id long_name String sample identifier
variable session   byte  
attribute session actual_range byte 1, 39
attribute session ioos_category String Identifier
attribute session long_name String sampling session identifier
variable sea_water_temperature   float  
attribute sea_water_temperature _FillValue float -9999.0
attribute sea_water_temperature actual_range float 21.5, 29.3
attribute sea_water_temperature colorBarMaximum double 31.0
attribute sea_water_temperature colorBarMinimum double 21.0
attribute sea_water_temperature ioos_category String Temperature
attribute sea_water_temperature long_name String water temperature
attribute sea_water_temperature standard_name String sea_water_temperature
attribute sea_water_temperature units String Celsius
variable sea_water_salinity   float  
attribute sea_water_salinity _FillValue float -9999.0
attribute sea_water_salinity actual_range float 13.8, 39.1
attribute sea_water_salinity colorBarMaximum double 40.0
attribute sea_water_salinity colorBarMinimum double 10.0
attribute sea_water_salinity ioos_category String Salinity
attribute sea_water_salinity long_name String salinity
attribute sea_water_salinity standard_name String sea_water_salinity
attribute sea_water_salinity units String PSU
variable sea_water_turbidity   float  
attribute sea_water_turbidity _FillValue float -9999.0
attribute sea_water_turbidity actual_range float 0.34, 159.33
attribute sea_water_turbidity colorBarMaximum double 10.0
attribute sea_water_turbidity colorBarMinimum double 0.0
attribute sea_water_turbidity ioos_category String Optical Properties
attribute sea_water_turbidity long_name String turbidity
attribute sea_water_turbidity standard_name String sea_water_turbidity
attribute sea_water_turbidity units String NTU
variable sea_water_ph_reported_on_total_scale   float  
attribute sea_water_ph_reported_on_total_scale _FillValue float -9999.0
attribute sea_water_ph_reported_on_total_scale actual_range float 7.79, 8.4
attribute sea_water_ph_reported_on_total_scale colorBarMaximum double 9.0
attribute sea_water_ph_reported_on_total_scale colorBarMinimum double 7.0
attribute sea_water_ph_reported_on_total_scale ioos_category String Other
attribute sea_water_ph_reported_on_total_scale standard_name String sea_water_ph_reported_on_total_scale
attribute sea_water_ph_reported_on_total_scale units String pH
variable mass_concentration_of_oxygen_in_sea_water   float  
attribute mass_concentration_of_oxygen_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_oxygen_in_sea_water actual_range float 5.16, 8.12
attribute mass_concentration_of_oxygen_in_sea_water colorBarMaximum double 10.0
attribute mass_concentration_of_oxygen_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_oxygen_in_sea_water ioos_category String Dissolved O2
attribute mass_concentration_of_oxygen_in_sea_water long_name String dissolved oxygen concentration
attribute mass_concentration_of_oxygen_in_sea_water standard_name String mass_concentration_of_oxygen_in_sea_water
attribute mass_concentration_of_oxygen_in_sea_water units String milligrams/liter
variable fractional_saturation_of_oxygen_in_sea_water   float  
attribute fractional_saturation_of_oxygen_in_sea_water _FillValue float -9999.0
attribute fractional_saturation_of_oxygen_in_sea_water actual_range float 78.8, 112.1
attribute fractional_saturation_of_oxygen_in_sea_water colorBarMaximum double 100.0
attribute fractional_saturation_of_oxygen_in_sea_water colorBarMinimum double 0.0
attribute fractional_saturation_of_oxygen_in_sea_water ioos_category String Dissolved O2
attribute fractional_saturation_of_oxygen_in_sea_water long_name String dissolved oxygen saturation
attribute fractional_saturation_of_oxygen_in_sea_water standard_name String fractional_saturation_of_oxygen_in_sea_water
attribute fractional_saturation_of_oxygen_in_sea_water units String %
variable mass_concentration_of_nitrogen_in_sea_water   float  
attribute mass_concentration_of_nitrogen_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_nitrogen_in_sea_water actual_range float 39.98, 422.69
attribute mass_concentration_of_nitrogen_in_sea_water colorBarMaximum double 400.0
attribute mass_concentration_of_nitrogen_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_nitrogen_in_sea_water ioos_category String Dissolved Nutrients
attribute mass_concentration_of_nitrogen_in_sea_water long_name String total dissolved nitrogen
attribute mass_concentration_of_nitrogen_in_sea_water standard_name String mass_concentration_of_nitrogen_in_sea_water
attribute mass_concentration_of_nitrogen_in_sea_water units String micrograms/liter
variable mass_concentration_of_phosphorus_in_sea_water   float  
attribute mass_concentration_of_phosphorus_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_phosphorus_in_sea_water actual_range float 3.53, 49.42
attribute mass_concentration_of_phosphorus_in_sea_water colorBarMaximum double 50.0
attribute mass_concentration_of_phosphorus_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_phosphorus_in_sea_water ioos_category String Dissolved Nutrients
attribute mass_concentration_of_phosphorus_in_sea_water long_name String total dissolved phosphorus
attribute mass_concentration_of_phosphorus_in_sea_water standard_name String mass_concentration_of_phosphorus_in_sea_water
attribute mass_concentration_of_phosphorus_in_sea_water units String micrograms/liter
variable mass_concentration_of_phosphate_in_sea_water   float  
attribute mass_concentration_of_phosphate_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_phosphate_in_sea_water actual_range float 1.87, 36.7
attribute mass_concentration_of_phosphate_in_sea_water colorBarMaximum double 40.0
attribute mass_concentration_of_phosphate_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_phosphate_in_sea_water ioos_category String Dissolved Nutrients
attribute mass_concentration_of_phosphate_in_sea_water long_name String phosphorus as orthophosphate
attribute mass_concentration_of_phosphate_in_sea_water standard_name String mass_concentration_of_phosphate_in_sea_water
attribute mass_concentration_of_phosphate_in_sea_water units String micrograms/liter
variable mass_concentration_of_silicate_in_sea_water   float  
attribute mass_concentration_of_silicate_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_silicate_in_sea_water actual_range float 29.59, 2784.71
attribute mass_concentration_of_silicate_in_sea_water colorBarMaximum double 3000.0
attribute mass_concentration_of_silicate_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_silicate_in_sea_water ioos_category String Dissolved Nutrients
attribute mass_concentration_of_silicate_in_sea_water long_name String silicate
attribute mass_concentration_of_silicate_in_sea_water standard_name String mass_concentration_of_silicate_in_sea_water
attribute mass_concentration_of_silicate_in_sea_water units String micrograms/liter
variable mass_concentration_of_nitrate_and_nitrite_in_sea_water   float  
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water actual_range float 0.1, 373.53
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water colorBarMaximum double 400.0
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water ioos_category String Dissolved Nutrients
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water long_name String nitrate plus nitrite
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water standard_name String mass_concentration_of_nitrate_and_nitrite_in_sea_water
attribute mass_concentration_of_nitrate_and_nitrite_in_sea_water units String micrograms/liter
variable mass_concentration_of_ammonia_in_sea_water   float  
attribute mass_concentration_of_ammonia_in_sea_water _FillValue float -9999.0
attribute mass_concentration_of_ammonia_in_sea_water actual_range float 0.28, 42.04
attribute mass_concentration_of_ammonia_in_sea_water colorBarMaximum double 50.0
attribute mass_concentration_of_ammonia_in_sea_water colorBarMinimum double 0.0
attribute mass_concentration_of_ammonia_in_sea_water ioos_category String Dissolved Nutrients
attribute mass_concentration_of_ammonia_in_sea_water long_name String ammonia
attribute mass_concentration_of_ammonia_in_sea_water standard_name String mass_concentration_of_ammonia_in_sea_water
attribute mass_concentration_of_ammonia_in_sea_water units String micrograms/liter
variable QA_comments   String  
attribute QA_comments ioos_category String Quality
attribute QA_comments long_name String quality assurance issues or comments

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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