• 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

MLO Science Fair Awards
June 21, 2016

MLO Science Fair Awards

Every year MLO contributes to the local Science Fair event. This year Samantha Yamamoto & Maile Birlhante won the junior research award with their project 'Light Dispersing'. Kendra Puleo won the second award with 'Ocean acidification effect on the food chain.' Kylan K. Sakata won the senior division award with 'Verifying special relativity over time dilation through moon decay at variable altitudes' and Moana Lily Pinner won the second award with 'Investigating the SPF, anti-oxidant and anti cancer potential of turmeric and ginger.'
Record annual increase of carbon dioxide observed at Mauna Loa for 2015
March 10, 2016

Record annual increase of carbon dioxide observed at Mauna Loa for 2015

The annual growth rate of atmospheric carbon dioxide measured at NOAA’s Mauna Loa Observatory in Hawaii jumped by 3.05 parts per million during 2015, the largest year-to-year increase in 56 years of research.
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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