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Retired NOAA scientist John Chin stands before a detailed cross-section illustration of Mauna Loa at NOAA's Hilo office in Hawaii. Behind him, vintage scientific instruments—including what appears to be an early air sampling device—rest in display cases, preserving the history of pioneering climate research. For years, Chin worked alongside Dave Keeling on the world's most important continuous record of atmospheric carbon dioxide measurements at the Mauna Loa Observatory. The wall map, with its labeled atmospheric layers and measurement points, illustrates how the mountain's 13,680-foot elevation provides an ideal location for sampling undisturbed air above the inversion layer. This ongoing research has produced the famous "Keeling Curve," the longest continuous record of atmospheric CO₂ concentrations and one of the most significant scientific datasets documenting humanity's impact on Earth's atmosphere.
- Copyright
- Jonathan Kingston
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- 4256x2832 / 5.8MB
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- Contained in galleries
- Mauna Loa Observatory: Monitoring Earth's Climate Pulse, Science Revealed | Making Wonder Visible

