SPARC Science update: 21 February – 27 February

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

Using large ensembles to quantify the impact of sudden stratospheric warmings and their precursors on the North Atlantic Oscillation. By P.E. Bett et al. in Weather and Climate Dynamics.

Stratospheric Aerosol and Ozone Responses to the Hunga Tonga-Hunga Ha’apai Volcanic Eruption. By J. Lu et al. in the Geophysical Research Letters.

Kelvin-Helmholtz Billows in the Troposphere and Lower Stratosphere Detected by the PANSY Radar at Syowa station in the Antarctic. By Y. Minamihara, K. Sato, and M. Tsutsumi in the Journal of Geophysical Research: Atmospheres.

GNSS radio occultation soundings from commercial off-the-shelf receivers on board balloon platforms. By K.J. Nelson et al. in Atmospheric measurement Techniques.

The Cross Equatorial Transport of the Hunga Tonga-Hunga Ha’apai Eruption Plume. By M.R. Schoeberl, et al. in the Geophysical Research Letters.

Important role of stratosphere-troposphere coupling in the Arctic mid-to-upper tropospheric warming in response to sea-ice loss. By M. Xu et al. in njp climate and atmospheric science.

Discussion papers – open for comment:

Short and long-term stratospheric impact of smoke from the 2019/2020 Australian wildfires. By J. Friberg, B.G. Martinsson, and M.K. Sporre in the EGUsphere.

How do different pathways connect the stratospheric polar vortex to its tropospheric precursors? By R.H. Köhler, R. Jaiser, and D. Handorf in Weather and Climate Dynamics.

The EarthCARE Mission – Science and System Overview. By T. Wehr et al. in the EGUsphere.