SPARC Science update: 9 October – 15 October

A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).


Comparison of mean age of air in five reanalyses using the BASCOE transport model. By S. Chabrillat et al. in Atmospheric Chemistry and Physics.

Reconciling Hadley Cell Expansion Trend Estimates in Reanalyses. By N.A. Davis and S.M. Davis in the Geophysical Research Letters.

Wintertime transport of reactive trace gases from East Asia into the deep tropics. By V. Donets et al. in the Journal of Geophysical Research: Atmospheres.

Anomalous Behaviour of Vertical Wavenumber Spectra over a Tropical Station of India. By P. Ghosh, T.K. Ramkumar, and S. Sharma in the Geophysical Research Letters.

A new scenario resource for integrated 1.5 °C research. By D. Huppmann et al. in Nature: Climate Change.

Using machine learning to build temperature-based ozone parameterizations for climate sensitivity simulations. By P. Nowack et al. in the Environmental Research Letters.

The importance of stratospheric initial conditions for winter North Atlantic Oscillation predictability and implications for the signal‐to‐noise paradox. By C.H. O’Reilly et al. in the Quarterly Journal of the Royal Meteorological Society.

Lapse Rate or Cold Point: The Tropical Tropopause Identified by In Situ Trace Gas Measurements. By L.L. Pan et al. in the Geophysical Research Letters.

Scientific Writing: The Predicament of Weather and Climate Scientists in India. By A.S.D. Rajput in the Bulletin of the American Meteorological Society.

Variability in Atmospheric Methane From Fossil Fuel and Microbial Sources Over the Last Three Decades. By R.L. Thompson et al. in the Geophysical Research Letters.