SPARC Science update: 30 April –06 May

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


An Objective Procedure for Delineating the Circumpolar Vortex. By N. Bushra and R.V. Rohli in Earth and Space Science.

A New Road Map for Assessing the Effects of Solar Geoengineering. By T. Cook in Earth & Space Science News (EOS).

Eddy influences on the Hadley circulation. By N.A. Davis and T. Birner in the Journal of Advances in Modeling Earth Systems.

US Temperatures: Time Trends and Persistence. By L.A. Gil-Alana and L. Sauci in the International Journal of Limatology.

Extreme weather events in early summer 2018 connected by a recurrent hemispheric wave-7 pattern. By K. Kornhuber et al. in the Environmental research letters.

Ural Blocking as a driver of early winter stratospheric warmings. By Y. Peings in the Geophysical Research Letters.

Mechanism of ozone loss under enhanced water vapour conditions in the mid-latitude lower stratosphere in summer. By S. Robrecht et al. in Atmospheric Chemistry and Physics.

Inference of stochastic parametrizations for model error treatment using nested ensemble Kalman filters. By G. Scheffler, J. Ruiz, and M. Pulido in the Quarterly Journal of the Royal Meteorological Society.

Challenges to the sustainability of climate services in Europe. By M.B. Soares and C. Buontempo in WIREs Climate Change.

Drivers and surface signal of inter‐annual variability of boreal stratospheric final warmings. By R. Thiéblemont et al. in the Journal of Geophysical Research: Atmospheres.

Global tropopause altitudes in radiosondes and reanalyses. By T. Xian and C.R. Homeyer in Atmospheric Chemistry and Physics.

Response of the northern stratosphere to the Madden‐Julian oscillation during boreal winter. By C. Yang et al. in the Journal of Geophysical Research: Atmospheres.

The global warming hiatus has faded away: an analysis of 2014–2016 global surface air temperatures. By C. Zhang, et al. in the International Journal of Climatology.

Climate models can correctly simulate the continuum of global-average temperature variability. By F. Zhu et al. in the Proceedings of the National Academy of Sciences of the United States of America.


Discussion papers – open for comment:

Perfluorocyclobutane (PFC-318, c-C4F8) in the global atmosphere. By J. Mühle et al. in Atmospheric Chemistry and Physics.

Impact of convectively lofted ice on the seasonal cycle of tropical lower stratospheric water vapor. By X. Wang et al. in Atmospheric Chemistry and Physics.