Helicopter delivers photovoltaic rails, electrical conduit, and solar panels to Mauna Loa Observatory. Photo: Scott Prestien/EPC We are happy to report that measurements by the Scripps CO2 program resumed at Mauna Loa Observatory on March 9. The CO2 analyzer is being powered with a solar power/battery system installed by NOAA staff at the Mauna Loa Observatory using helicopter access. The … Read More
(Above: Ralph Keeling takes an air sample at Maunakea Dec. 21, 2022) The Keeling Curve data stream was interrupted by the eruption of Mauna Loa on Nov. 28. To help close this data gap, scientists at Scripps Institution of Oceanography at UC San Diego worked with partners from NOAA and the Maunakea Observatory partners to install a nearly-identical carbon dioxide … Read More
We are now approaching the annual low point in the Mauna Loa CO2 curve, which typically happens around the last week of September but varies slightly from year to year.
A hurricane bearing down on Hawaii prompted operators to shut down CO2 monitoring equipment at Mauna Loa Observatory on the Big Island.
A failed disk that had prevented the reporting of daily readings was replaced on June 14 and the system is now running normally.
Readings of CO2 from Mauna Loa have been unavailable for two weeks. According to technicians with the Scripps CO2 Group, the problem is a disk failure that handles the data buffering, which has broken the data stream and valve switching that impacts daily calibration. The air data are recoverable, because the computer onboard the actual instrument is still working and … Read More
CO2 levels increasing at a faster rate than before
On Nov. 5, 2015, we made an adjustment to the Scripps Mauna Loa CO2 record that has the effect of increasing concentrations we have reported since April 2015
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