SPARC Science Update: 15-21 July

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


Thermodynamic constraint on the depth of the global tropospheric circulation
. By D.W.J. Thompson et al. in the Proceedings of the National Academy of Sciences of the United States of America.

Influences of the MJO on the space-time organization of tropical convection. By J. Dias et al. in the Journal of Geophysical Research: Atmospheres.

Lidar ratios of stratospheric volcanic ash and sulfate aerosols retrieved from CALIOP measurements. By A.T. Prata et al. in Atmospheric Chemistry and Physics.

Hemispheric climate shifts driven by anthropogenic aerosol–cloud interactions. By E.-S. Chung and B.J. Soden in Nature Geoscience.

Response of the global surface ozone distribution to Northern Hemisphere sea surface temperature changes: implications for long-range transport. By K. Yi et al. in Atmospheric Chemistry and Physics.

The Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa field campaign: Overview and research highlights. By C. Flamant et al. in the Bulletin of the American Meteorological Society.

A perspective on climate model hierarchies. By N. Jeevanjee et al. in the Journal of Advances in Modeling Earth Systems.

Nearly identical cycles of the quasi-biennial oscillation in the equatorial lower stratosphere. By T.J. Dunkerton in the Journal of Geophysical Research: Atmospheres.

On the generation and maintenance of the 2012-2013 sudden stratospheric warming. By F. Xu and X.S. Liang in the Journal of the Atmospheric Sciences.

Momentum flux of convective gravity waves derived from an off-line gravity wave parameterization. Part I: Spatiotemporal variations at source level. By M.-J. Kang et al. in the Journal of the Atmospheric Sciences.

Secondary Gravity Wave Generation Over New Zealand During the DEEPWAVE Campaign. By K. Bossert et al. in the Journal of Geophysical Research: Atmospheres.

Post-millennium changes in stratospheric temperature consistently resolved by GPS radio occultation and AMSU observations. By S.M. Khaykin et al. in Geophysical Research Letters.

A cirrus cloud climate dial? By U. Lohmann and B. Gasparini in Science.

A climatology of Rossby wave generation in the middle atmosphere of the Southern hemisphere from MERRA reanalysis. By C. Rodas and M. Pulido in the Journal of Geophysical Research: Atmospheres.

On the aliasing of the solar cycle in the lower-stratospheric tropical temperature. By A. Kuchar et al. in the Journal of Geophysical Research: Atmospheres.

Sulfur injections for a cooler planet. By U. Niemeier and S. Tilmes in Science.

Discussion papers – open for comment

The SPARC water vapor assessment II: intercomparison of satellite and ground-based microwave measurements. By G.E. Nedoluha et al. in Atmospheric Chemistry and Physics Discussions.

Detectability of the Impacts of Ozone Depleting Substances and Greenhouse Gases upon Stratospheric Ozone Accounting for Nonlinearities in Historical Forcings. By J. Bandoro et al. in Atmospheric Chemistry and Physics Discussions.

Age and gravitational separation of the stratospheric air over Indonesia. By S. Sugawara et al. in Atmospheric Chemistry and Physics Discussions.

First tomographic observations of gravity waves by the infrared limb imager GLORIA. By I. Krisch et al. in Atmospheric Chemistry and Physics Discussions.

The Ozone Monitoring Instrument: Overview of twelve years in space. By P. Levelt et al. in Atmospheric Chemistry and Physics Discussions.