Brisbane CO2 for 3 December 2023

Please see here for details about the calibration improvements made since Phase 2. Sunday started high at Bellbird Park and again peaked at a high level – above 600 ppm. These periodic high peaks sometimes occur before midnight, but seem to be more common in the early hours.  As data accumulates we will look for relationships with wind direction and speed in an effort to identify possible reasons for them.  Today’s second chart shows the other end of the technology spectrum from this project when it comes to carbon dioxide measurement. It shows a simplified schematic of the sensor array for the Copernicus CO2M system for monitoring anthropogenic carbon dioxide. It will be deployed on a number of low earth orbit satellites.  the article gives a very readable account of this instrument and the planned mission.

Daily Averages – Phase 3

Daily Averages – Phase 2 (See explanation of differences between Phase 1 and Phase 2 data)

For reference, latest monthly average (July 2023) from CSIRO for Kennaook/Cape Grim in NW Tasmania was 416.6 ppm. (Note – these are provisional values, subject to revision folllowing sensor re-calibrations and other checks.)