ESRL Global Monitoring Division - Mauna Loa Observatory

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Mauna Loa, Hawaii Observatory

Welcome to Mauna Loa Observatory!

Photograph by Forrest Mims III
Photograph by Forrest Mims III
Photograph by Forrest Mims III
Photograph by Darryl Kuniyuki
Photograph by Forrest Mims III
Photograph by Forrest Mims III
Photograph by Forrest Mims III
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).

Current Weather Live Cameras News Items

Latest News

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:

CO₂

Apparent Solar Transmission

Water Vapor Profile

Meteorology

Location

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