MAPCO2 Buoy: Ala Wai, Oahu, Hawaii

This buoy operated between June 5, 2008 and February 17, 2021 and was located approximately 300 m (1000 ft) offshore of Magic Island near the mouth of the Ala Wai Canal between Ala Moana Beach Park and Waikiki on the South Shore of Oahu in the State of Hawaii. It was moored in waters 7.5 m (25 ft) deep. Data were recorded every 3 hours and transmitted daily. This Moored Autonomous Partial Pressure of Carbon Dioxide (MAPCO2) buoy was primarily established to monitor ocean acidification, complementing a national array of moored carbon dioxide buoys across the Pacific, Atlantic, and Caribbean. Other important physical parameters were also monitored, including water temperature, salinity, turbidity, chlorophyll, and air pressure. Water quality measurements help provide early indications of potentially polluted run-off from storm drainage, sewage spills, and soil erosion from land-based waterways such as streams and other outflows that lead directly into the ocean. The buoy was primarily funded by NOAA's Ocean Acidification Program and supported by NOAA's Pacific Marine Environmental Laboratory (PMEL). The University of Hawaii at Manoa supported the maintenance of the buoy and instrumentation. Data are managed by PMEL at the NOAA Western Regional Center in Seattle, Washington. PMEL enables data streaming into the PacIOOS website for visualization purposes only: the near real-time data have not been post-calibrated or quality controlled and are therefore not of the climate quality that PMEL is required to achieve. Only post-calibrated and quality-controlled data should be used for scientific publications and are available for download separately at the NOAA Ocean Carbon Data System (OCADS) website in a delayed-mode capacity.

Data and Resources

Graphic Preview

browse graphic

Metadata Date

2022-11-16

Metadata Tags

GCMD Keywords

CF Standard Names

Online Access

Distribution Formats
  • HTML
Distributor NOAA Pacific Marine Environmental Laboratory (PMEL)
Point of Contact Adrienne J. Sutton
NOAA Pacific Marine Environmental Laboratory (PMEL)
adrienne.sutton@noaa.gov
Online Resource
Principal Investigator Adrienne J. Sutton
NOAA Pacific Marine Environmental Laboratory (PMEL)
adrienne.sutton@noaa.gov
Online Resource
Originator Christopher L. Sabine
University of Hawaii at Manoa
csabine@hawaii.edu
Online Resource
Originator Eric H. De Carlo
University of Hawaii at Manoa
edecarlo@soest.hawaii.edu
Online Resource
Resource Provider Pacific Islands Ocean Observing System (PacIOOS)
info@pacioos.org
Online Resource
Publisher NOAA Pacific Marine Environmental Laboratory (PMEL)
oar.pmel.webmaster@noaa.gov
Online Resource
Dataset Point of Contact NOAA Pacific Marine Environmental Laboratory (PMEL)
oar.pmel.webmaster@noaa.gov
General Documentation
Associated Documentation Pacific Islands Ocean Observing System (PacIOOS)
Resource Provider Pacific Islands Ocean Observing System (PacIOOS)
Date(s) creation: 2008-06-06
issued: 2019-05-24
revision: 2008-06-06
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. The mission of NOAA's Pacific Marine Environmental Laboratory (PMEL) Carbon Program is to advance scientific understanding of the ocean carbon cycle and how it is changing over time in support of NOAA's commitment to improve the Nation's ability to anticipate and respond to climate impacts and to conserve and manage healthy oceans, coastal ecosystems, and marine resources. This research includes documenting the evolving state of the ocean carbon chemistry with high quality measurements, studying the processes controlling the role of the ocean in the global carbon cycle, and investigating how rising atmospheric CO2 and climate change affect the chemistry of the oceans and its marine ecosystems.
Use Limitations Data are managed by NOAA Pacific Marine Environmental Laboratory (PMEL) at the NOAA Western Regional Center in Seattle, Washington. PMEL enables data streaming into the PacIOOS website for visualization purposes only: the near real-time data have not been post-calibrated or quality controlled and are therefore not of the climate quality that PMEL is required to achieve. Only post-calibrated and quality-controlled data should be used for scientific publications and are available for download separately at the NOAA Ocean Carbon Data System (OCADS) website in a delayed-mode capacity.
Time Period 2008-06-06T05:58:00Z to 2021-02-17T18:17:00Z
Spatial Bounding Box Coordinates N: 21.27989° S: 21.27989° E: -157.84800° W: -157.84800°
Theme keywords GCMD Science Keywords
  • Earth Science > Atmosphere > Atmospheric Chemistry > Carbon And Hydrocarbon Compounds > Carbon Dioxide
  • Earth Science > Atmosphere > Atmospheric Pressure > Surface Pressure
  • Earth Science > Oceans > Ocean Chemistry > Carbon Dioxide
  • Earth Science > Oceans > Ocean Chemistry > Chlorophyll
  • Earth Science > Oceans > Ocean Optics > Turbidity
  • Earth Science > Oceans > Ocean Temperature > Water Temperature
  • Earth Science > Oceans > Salinity/Density > Salinity
  • Earth Science > Oceans > Water Quality

GCMD Platform Keywords
  • In Situ Ocean-based Platforms > Buoys
  • In Situ Ocean-based Platforms > Moorings

GCMD Instrument Keywords
  • In Situ/Laboratory Instruments > Chemical Meters/Analyzers > > > CO2 Analyzers
  • In Situ/Laboratory Instruments > Chemical Meters/Analyzers > > > Fluorometers
  • In Situ/Laboratory Instruments > Conductivity Sensors
  • In Situ/Laboratory Instruments > Photon/Optical Detectors > > > Turbidity Meters
  • In Situ/Laboratory Instruments > Pressure/Height Meters > > > Pressure Sensors
  • In Situ/Laboratory Instruments > Profilers/Sounders > > > CTD
  • In Situ/Laboratory Instruments > Temperature/Humidity Sensors > > > Temperature Sensors

CF Standard Name Table v39
  • mass_concentration_of_chlorophyll_in_sea_water
  • mole_fraction_of_carbon_dioxide_in_air
  • mole_fraction_of_carbon_dioxide_in_sea_water
  • sea_water_temperature
  • sea_water_turbidity
  • sea_water_salinity
  • surface_air_pressure
  • depth
  • latitude
  • longitude
  • time
Data Center keywords GCMD Data Center Keywords
  • Government Agencies-U.S. Federal Agencies > DOC > NOAA > > DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce
  • Government Agencies-U.S. Federal Agencies > DOC > NOAA > > DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Place keywords GCMD Location Keywords
  • Continent > North America > United States Of America > Hawaii
  • Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu > Ala Moana
  • Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu > Ala Wai Canal
  • Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu > Honolulu
  • Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu > Magic Island
  • Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu > Waikiki
Project keywords GCMD Project Keywords
  • PacIOOS > Pacific Islands Ocean Observing System
Use Constraints Data are managed by NOAA Pacific Marine Environmental Laboratory (PMEL) at the NOAA Western Regional Center in Seattle, Washington. PMEL enables data streaming into the PacIOOS website for visualization purposes only: the near real-time data have not been post-calibrated or quality controlled and are therefore not of the climate quality that PMEL is required to achieve. Only post-calibrated and quality-controlled data should be used for scientific publications and are available for download separately at the NOAA Ocean Carbon Data System (OCADS) website in a delayed-mode capacity.
Lineage Statement 2008-06-06T05:58:00Z UH/SOEST (E.H. De Carlo) and NOAA/PMEL asset, initial deployment. 2019-05-21T00:00:00Z C. Sabine (UH/SOEST) assumes buoy oversight. 2021-02-17T18:17:00Z Decommissioned. 2022-11-16T21:03:00Z Dataset identifier modified from "MAPCO2-AlaWai" to "mapco2_alawai" to match PacIOOS naming conventions.
Platforms
Ingestion Attributes
Instrument Attributes
Attribution Information
CF related