The Orbiting Carbon Observatory-2 early science investigations of regional carbon dioxide fluxes.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 29026012.
- Also identified by DOI 10.1126/science.aam5745 and PMC identifier 5668686.
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Abstract
NASA's Orbiting Carbon Observatory-2 (OCO-2) mission was motivated by the need to diagnose how the increasing concentration of atmospheric carbon dioxide (CO<sub>2</sub>) is altering the productivity of the biosphere and the uptake of CO<sub>2</sub> by the oceans. Launched on 2 July 2014, OCO-2 provides retrievals of the column-averaged CO<sub>2</sub> dry-air mole fraction ([Formula: see text]) as well as the fluorescence from chlorophyll in terrestrial plants. The seasonal pattern of uptake by the terrestrial biosphere is recorded in fluorescence and the drawdown of [Formula: see text] during summer. Launched just before one of the most intense El Niños of the past century, OCO-2 measurements of [Formula: see text] and fluorescence record the impact of the large change in ocean temperature and rainfall on uptake and release of CO<sub>2</sub> by the oceans and biosphere.
Medical subject headings
- Atmosphere
- Carbon Cycle
- Carbon Dioxide
- Climate Change