• Mauna Loa
    Photograph by Forrest Mims III
  • John Chin and Dave Keeling
    Photograph by Forrest Mims III
  • Lidar
    Photograph by Forrest Mims III
  • Road to Mauna Loa
    Photograph by Darryl Kuniyuki
  • Water Vapor Balloon Flight
    Photograph by Forrest Mims III
  • Sun Sensor
    Photograph by Forrest Mims III
  • Mauna Loa Sunset
    Photograph by Forrest Mims III
  • Tower
    Photograph by Forrest Mims III

Mauna Loa Observatory (MLO) is a premier atmospheric research facility that has been continuously monitoring and collecting data related to atmospheric change since the 1950's. The undisturbed air, remote location, and minimal influences of vegetation and human activity at MLO are ideal for monitoring constituents in the atmosphere that can cause climate change. The observatory is part of the National Oceanic and Atmospheric Administration (NOAA) - Earth System Research Laboratory (ESRL) - Global Monitoring Division (GMD).

Latest News

Another climate milestone on Mauna Loa
June 7, 2018

Another climate milestone on Mauna Loa

Carbon dioxide levels measured at NOAA’s Mauna Loa Atmospheric Baseline Observatory averaged more than 410 parts per million in April and May, the highest monthly averages ever recorded, scientists from NOAA and Scripps Institution of Oceanography at the University of California San Diego announced today.
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Examples of Data:
MLO CO2
CO2
MLO Solar Transmission
Apparent Solar Transmission
Water Vapor Profile
Water Vapor Profile
Meteorology Wind Rose for Mauna Loa
Meteorology

Location

  • Country: United States Country Flag
  • Latitude: 19.5362° North
  • Longitude: 155.5763° West
  • Elevation: 3397.00 masl
  • Time Zone: Local Time + 10 hour(s) = UTC

Contact

  • Contact Name: Darryl Kuniyuki
  • Address: NOAA - Mauna Loa Observatory
    1437 Kilauea Ave. #102
    Hilo, Hawaii, 96720, United States
  • Phone: (808)933-6965
  • Fax: (808)933-6967

Data

Additional Information