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

Do CMIP5 models reproduce observed low‐frequency North Atlantic jet variability? By T.J. Bracegirdle et al. in the Geophysical Research Letters.

Data assimilation in the geosciences: An overview of methods, issues, and perspectives. By A. Cerrassi et al. in the Wiley Interdisciplinary Reviews (WIREs) Climate Change.

The momentum budget in the stratosphere, mesosphere, and lower thermosphere Part 1: Contribution of different wave types and in situ generation of Rossby waves. By K. Sato, R. Yasui, and Y. Miyoshi in the Journal of the Atmospheric Sciences.

The momentum budget in the stratosphere, mesosphere, and lower thermosphere Part 2: The in situ generation of gravity waves. By R. Yasui, K. Sato, and Y. Miyoshi in the Journal of the Atmospheric Sciences.

Stratospheric aerosol evolution after Pinatubo simulated with a coupled size-resolved aerosol–chemistry–climate model, SOCOL-AERv1.0. By T. Sukhodolov et al. in Geoscientific Model Development.

Discussion papers – open of comments:

Mesoscale fine structure of a tropopause fold over mountains. By W. Woiwode et al. in Atmospheric Chemistry and Physics.

WCRP is awarding annually, together with its two respective partners WWRP and GCOS, two prizes for notable achievements in model as well as data development. The “WCRP/WWRP International Prize for Model Development” has been awarded since 2014 for outstanding contributions to model development by WCRP and the World Weather Research Programme (WWRP). In 2016, the “WCRP/GCOS International Data Prize 2018” has been established by WCRP and the Global Climate Observing System (GCOS), rewarding provision of climate or Earth system data that had a visible impact on the community.

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

Atmospheric blocking as a traffic jam in the jet stream. By N. Nakamura and C.S.Y. Huang in Science.

Climate Change Is Making Night-Shining Clouds More Visible. Press release by American Geophysical Union.

A two-dimensional dynamical model for the subseasonal variability of the Asian monsoon anticyclone. By A. Amemiya and K. Sato in the Journal of the Atmospheric Sciences.

Toward Standardized Data Sets for Climate Model Experimentation. By Paul J. Durack et al. in Earth and Space Science News.

Interdecadal Variability of the Warm Arctic and Cold Eurasia Pattern and Its North Atlantic Origin. By M-K. Sung et al. in the Journal of Climate.

The Interactive Stratospheric Aerosol Model Intercomparison Project (ISA-MIP): motivation and experimental design. By C. Timmreck et al. in Geoscientific Model development.

Convective influence on the humidity and clouds in the tropical tropopause layer during boreal summer. By R. Ueyama, E. Jensen, and L. Pfister in the Journal of Geophysical Research: Atmospheres.

On the linkage among strong stratospheric mass circulation, stratospheric sudden warming, and cold weather events. By Y. Yu et al. in the Monthly Weather Review.

The Interconnected Global Climate System—A Review of Tropical–Polar Teleconnections. By X. Yuan, M.R. Kaplan, and M.A. Cane in the Journal of Climate.

A WCRP workshop on “The Earth’s Energy Imbalance and its implications”
will be held in Toulouse, France, from 13th to 16th Nov 2018.

The deadline for abstract submission has been extended to 13th July 2018.

The main objective of the workshop is to initiate a new WCRP-wide
activity and to thus strengthen and extend the community on the Earth’s
energy imbalance through a community wide discussion on links across all
the WCRP Core Projects and relevant activities. The expected outcome is
to identify research goals and opportunities focused on the Earth’s
energy imbalance, and synthesize the various aspects across WCRP.

Further information on the workshop, and instructions how to submit an
abstract can be found on the workshop webpage.