New analysis of NOAA’s long-term air samples by CIRES and NOAA scientists finds that the North American terrestrial biosphere takes up unexpectedly large amounts of carbon in response to elevated carbon dioxide levels during El Niño years.
Surprisingly Large Carbon Uptake by North American Biosphere During El Niños
Modeling Earth’s Geomagnetic Fields
Scientists use many instruments to measure Earth’s magnetic fields. Satellite, airborne, marine, and land-based observations show the position and strength of Earth’s invisible magnetism. NOAA scientists generate the model from a combination of satellite and ground-based data, as well as airborne and marine magnetic data compiled into the Earth Magnetic Anomaly Grid (EMAG2). From these, scientists create the HDGM to show fields of magnetism and their annual fluctuations. Known for its accuracy, the HDGM is the most advanced model to track changes in the global magnetic field.
Who’s the Source of a Banned Ozone-destroying Chemical?
It was one of the major scientific discoveries of 2018: Emissions of an ozone-destroying chemical responsible for creating the Antarctic ozone hole were unexpectedly rising again, in an apparent violation of an international ban on its manufacture and use. The finding was reported by NOAA scientist and CIRES Fellow Stephen Montzka and an international team of colleagues.
Where were the emissions coming from? A new study published today in Nature provides an answer.