SPARC Science Update: 19-25 November

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

Internal atmospheric noise characteristics in twentieth century coupled atmosphere–ocean model simulations. By I. Colfescu and E.K. Schneider in Climate Dynamics.

A multi-system view of wintertime NAO seasonal predictions. By P.J. Athanasiadis et al in the Journal of Climate.

First detection of ammonia (NH3) in the Asian summer monsoon upper troposphere. By M. Höpfner et al. in Atmospheric Chemistry and Physics.

No fudging on geoengineering. By A. Parker and O. Geden in Nature Geoscience.

The vital need for a climate information system. By K.E. Trenberth et al. in Nature Climate Change.

Persistent shift of the Arctic polar vortex towards the Eurasian continent in recent decades. By J. Zhang et al. in Nature Climate Change.

Assessing the sensitivity of the hydroxyl radical to model biases in composition and temperature using a single-column photochemical model for Lauder, New Zealand. By L. Lopez-Comi et al. in Atmospheric Chemistry and Physics.

Direct inversion of circulation and mixing from tracer measurements – Part 1: Method. By T. von Clarmann and U. Grabowski in Atmospheric Chemistry and Physics.

The influence of orographic Rossby and gravity waves on rainfall. By N.Y. Cohen and W.R. Boos in the Quarterly Journal of the Royal Meteorological Society.

CFC-11, CFC-12 and HCFC-22 ground-based remote sensing FTIR measurements at Réunion Island and comparisons with MIPAS/ENVISAT data. By M. Zhou et al. in Atmospheric Measurement Techniques.

Discussion papers – open for comment

The radiative role of ozone and water vapour in the temperature annual cycle in the tropical tropopause layer. By A. Ming et al. in Atmospheric Chemistry and Physics Discussions.

Limits on the ability of global Eulerian models to resolve intercontinental transport of chemical plumes. By S.D. Eastham and D.J. Jacob in Atmospheric Chemistry and Physics Discussions.

The SPARC water vapour assessment II: Comparison of annual, semi-annual and quasi-biennial variations in stratospheric and lower mesospheric water vapour observed from satellites. By S. Lossow et al. in Atmospheric Measurement Techniques.