ALOHA Cabled Observatory (ACO): Acoustic Doppler Current Profiler (ADCP)


The University of Hawaii's ALOHA ("A Long-term Oligotrophic Habitat Assessment") Cabled Observatory (ACO) is located 100 km north of the island of Oahu, Hawaii (22 45'N, 158W) in the North Pacific Ocean. It provides real-time oceanographic observations from a depth of about 4,800 m via a submarine fiber optic cable that comes ashore at Makaha on Oahu. This data set provides measurements of ocean current velocity at the ACO from a 250 kHz SonTek acoustic doppler current profiler (ADCP) at 1.83 m above the ocean bottom. Velocities are flagged bad if the amplitude is excessively low or high. An amplitude is high if it exceeds the average of the ping before and the ping after by 20 counts. An amplitude is low if less than 6 counts. After this the velocities are flagged bad if the absolute deviation of the vertical velocity from its ensemble median exceeds 0.15 m/s or if its value is less than -0.25 m/s. This dataset also provides measurements of sea water temperature at the ACO at 1.83 m above the ocean bottom.

Data and Resources

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OPeNDAP (DAP Client Access)

These data are available for access with an OPeNDAP client

ERDDAP (DAP Client Access)

These data are available for access with an ERDDAP client

ERDDAP (DAP Client Access)

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Distribution Formats
  • OPeNDAP
Point of Contact Fernando Santiago-Mandujano
University of Hawaii
mandujan@soest.hawaii.edu
Online Resource
Originator Fernando Santiago-Mandujano
University of Hawaii
mandujan@soest.hawaii.edu
Online Resource
Distributor Jim Potemra
Dataset Point of Contact Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
General Documentation
Associated Documentation ALOHA Cabled Observatory (ACO)
Date(s) creation: 2012-05-01
issued: 2012-06-21
revision: 2014-08-18
creation: 2012-05-01
issued: 2012-06-21
revision: 2014-08-18
Purpose PacIOOS provides timely, reliable, and accurate ocean information to support a safe, clean, productive ocean and resilient coastal zone in the U.S. Pacific Islands region.
Use Limitations
Time Period 2018-11-30T00:00:00Z to 2018-12-07T00:00:00Z
Spatial Bounding Box Coordinates N: 22.73871° S: 22.73869° E: -158.00619° W: -158.00621°
Theme keywords GCMD Science Keywords
  • Earth Science > Oceans > Ocean Temperature > Water Temperature
  • Earth Science > Oceans > Ocean Currents > Currents

GCMD Platform Keywords
  • In Situ Ocean-based Platforms > Ocean Platform/Ocean Stations

GCMD Instrument Keywords
  • In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > > ADCP > Acoustic Doppler Current Profiler
  • In Situ/Laboratory Instruments > Temperature/Humidity Sensors > > > Temperature Sensors

CF Standard Name Table v39
  • sea_water_temperature
  • eastward_sea_water_velocity
  • northward_sea_water_velocity
  • upward_sea_water_velocity
  • latitude
  • longitude
  • depth
  • time

Data Center keywords GCMD Data Center Keywords
  • PacIOOS > Pacific Islands Ocean Observing System

Place keywords GCMD Location Keywords
  • Continent > North America > United States Of America > Hawaii
  • Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu

Project keywords GCMD Project Keywords
  • ALOHA Cabled Observatory (ACO)

Lineage Statement UH/SOEST (R. Lukas), Added to PacIOOS archive (6/2012).