The 12th Atmospheric Limb Workshop is organized by BIRA-IASB’s ALTIUS team.

Dates: 22-26 May 2023
Location: Brussels, Belgium

The call for abstracts is now open until January 16. The scientific programme will be built based on the contributions submitted in the following topics:

– Upcoming limb instruments
– Limb scatter: techniques, algorithms, products
– Occultation: techniques, algorithms, products
– Emissions: techniques, algorithms, products
– Aerosol and clouds: profiles, composition, trends
– Trace gases: profiles, trends
– Limb products validation
– Assimilation of limb products, and synergistic exploitation
– ALTIUS

Further information can be found on the event page https://events.spacepole.be/event/146, including abstract submission. When submitting your abstract, you may choose one or more applicable topics. You may also write in the comments section if you have a preference for an oral or poster presentation. There is no cost for submitting an abstract.

We look forward to welcoming all interested colleagues!

Kind regards,
Noel Baker, on behalf of the local organizing committee

The demand for and interest in CMIP data is growing rapidly with users coming from an increasingly diverse range of backgrounds beyond the climate research community including climate services, impact modelling, regional and local policy/decision makers and indigenous communities from across the globe. This task team will seek to smooth the path between the conception of experiments and the use of the resulting data. We are looking for a diverse and multidisciplinary team of 8-12 experts representing the range of CMIP-like data providers, data users, and infrastructure providers. We are especially keen to ensure representation from all global regions and across career stages and have therefore extended the call deadline to promote wider participation. Find out more here where the call text can be downloaded for further information on the aims and objectives of the Task Team, and the relevant point of contact.

Applications should be submitted via this form (office) by Monday 23rd January 2023 and if you have any questions please contact .

Registration and abstract submission for the upcoming QBO workshop are now available here (google doc). The workshop will be held March 27-31, 2023 in Oxford, UK and is organized by the QBOi (Quasi-Biennial Oscillation initiative) SPARC activity in conjunction with CCMI and the GW (Gravity Wave) SPARC activities.

For in-person presenters needing to arrange travel, we will send abstract acceptance notices as soon as possible (beginning in early January). 

Workshop scientific program:

• Processes driving the QBO, including its recent disruptions and future projections
• Tropical gravity waves: observations, high resolution models, and parametrizations
• QBO interactions with atmospheric composition, including ozone and stratospheric aerosols from geoengineering and volcanic eruptions
• Wave-mean flow interactions and their role in predictability on seasonal to decadal timescales.
• Atmospheric teleconnections, including the QBO’s links with the MJO and Northern and Southern Annular Modes.  

We are pleased to announce the following invited speakers: 

Ewa Bednarz, Martina Bramberger, Mohamadou Diallo, Rolando Garcia, Chaim Garfinkel, Marco Giorgetta, Peter Hitchcock, Kaoru Sato, Adam Scaife, and Seok-Woo Son.

Updates and further information will be available on the workshop website. The workshop is organised by QBOi in conjunction with the CCMI and GW activities. Please feel free to forward any colleagues that you think may be interested.

Best wishes,

QBOi coordinators

(James, Neal, Yoshio, Scott, Yaga)

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

Dependence of strategic solar climate intervention on background scenario and model physics. By J.T. Fasullo and J.H. Richter in Atmospheric Chemistry and Physics.

Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements – corrected. By H. Guo et al. in Atmospheric Chemistry and Physics.

Underestimated Passive Volcanic Sulfur Degassing Implies Overestimated Anthropogenic Aerosol Forcing. By U.A. Jongebloed et al. in the Geophysical Research Letters.

Secondary gravity waves from the stratospheric polar vortex over ALOMAR Observatory on 12-14 January 2016: Observations and modelling. By S.L. Vadas et al. in the Journal of Geophysical Research: Atmospheres.

Monitoring the 2021 Cumbre Vieja Volcanic Eruption Using Satellite Multi-Sensor Data Fusion. By E. Weisz and W.P. Menzel in the Journal of Geophysical Research: Atmospheres.

Discussion papers – open for comment:

A Colorful look at Climate Sensitivity. By B. Stevens and L. Kluft in the EGU Sphere.

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

Potential impact of tropopause sharpness on the structure and strength of the general circulation. By L. Boljka and T. Birner in  npj climate and atmospheric science.

Climatology of Clear-Air Turbulence in Upper Troposphere and Lower Stratosphere in the Northern Hemisphere Using ERA5 Reanalysis Data. By J.-H. Lee et al. in the Journal of Geophysical Research: Atmospheres.

Diverse Interannual Variability of Asian Summer Monsoon Onset Process. By B. Liu and Y. Duan in the Geophysical Research Letters.

A Multimodel Investigation of Asian Summer Monsoon UTLS Transport Over the Western Pacific. By L.L. Pan et al. in the Journal of Geophysical Research: Atmospheres.

We are delighted to announce the winners of the Early Career Presentation awards at the recent 7^th SPARC General Assembly. In keeping with the multi-hub nature of the meeting, we awarded prizes for best oral and best poster presentation at each of our three hubs.

Best ECR oral and poster presentations

Thank you to everyone who helped us to judge the presentations and particularly to Alison Ming for her organisation of the process.

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

Driving mechanisms for the El Niño–Southern Oscillation impact on stratospheric ozone. By S. Benito-Barca, N. Calvo, and M. Abalos in Atmospheric Chemistry and Physics.

Understanding model-observation discrepancies in satellite retrievals of atmospheric temperature using GISS ModelE. By M.C. Casas et al. in the Journal of Geophysical Research: Atmospheres.

Satellite-Borne Observations of Ozone Impact by the November 2001 Solar Proton Event. By K. Nilsen, A. Kero, P.T. Verronen, and M.E. Szeläg in the Journal of Geophysical Research: Atmospheres.

Vertical structure of the lower-stratospheric moist bias in the ERA5 reanalysis and its connection to mixing processes. By K. Krüger et al. in Atmospheric Chemistry and Physics.

Climatology and variability of air mass transport from the boundary layer to the Asian monsoon anticyclone. By M. Nützel et al. in Atmospheric Chemistry and Physics.

We’re pleased to announce that we’re now inviting abstracts for the WWRP/WCRP S2S Summit at the University of Reading, UK, 3-7 July 2023.

Sub-seasonal to seasonal (S2S) prediction–2 weeks to a season ahead–is increasingly filling the gap between weather and seasonal climate forecasts, helping provide early warnings of high-impact events such as tropical cyclones, floods, droughts, heat, cold waves and their compound impacts on society. As the S2S forecast skill continues to improve through a better understanding of physical mechanisms involved, model advances and statistical calibration of model forecast outputs, more products are becoming available for decision makers to advance applications and services.

The Summit will celebrate the success of the WWRP/WCRP S2S Prediction Project over 10 years as it moves towards its completion in December 2023. The event welcomes contributions on all aspects of S2S science, including:

·       Physical mechanisms leading to predictability on sub-seasonal timescales,
·       Mddel evaluation and diagnostics,
·       Predictability and prediction studies,
·       Extreme events,
·       Traditional Model Output Statistics (calibration, verification) as well novel approaches such as, Machine Learning.
·       Examples and best practices of development, application, value and communication of S2S products.

Contributions making use of both the S2S and SubX databases are encouraged as these are complementary data sources for advancing sub-seasonal to seasonal prediction research. Forecasting of sub-seasonal weather statistics within the first season, including high impact weather and monsoon onset/cessation dates are also welcome.

The deadline for abstracts is 15th January 2023 and authors will be notified of abstract acceptance and presentation type by 28th  February. Abstract submission should be through the web-from on the conference website: https://research.reading.ac.uk/s2s-summit2023/

Meet with us in “Remarkable Rwanda”­­­­

The next WCRP Open Science Conference (OSC) will take place in 2023, with the major goal of bridging science and society by “advancing climate science for a sustainable future.” Climate risk, early warning, attribution, uncertainty, tipping points, irreversibility, and abrupt climate change are just some of the topics that will be discussed, both on a global and regional scale, as well as the fundamental science that is critical to advancing these important topics.­­­­­

Website now LIVE!

­­Abstract submission(includes financial support applications)­­

Watch our video introducing the OSC:­­­­­­­­­­­­­­­­
Science leaders, politicians, policy makers, intergovernmental agencies and NGOs will share ideas on how climate research leads to a sustainable future. Natural and social scientists, humanities scholars, and practitioners from around the world will showcase their work, learn from each other, and explore new ways to work together to build the future we want. The OSC will feature the latest research from across the WCRP community (Core Projects, Lighthouse Activities, Grand Challenges) and from all of our key partners. 

Key dates

Early 2023: Registrations open
Feb. 2023: Abstract submission and financial support application deadline
Apr.–May 2023: Abstract review and financial support notifications
Jun. 2023: Final conference program 
22 & 28 Oct. 2023: Early to mid-career researchers event
23–27 Oct. 2023: WCRP Open Science Conference

Horizontal small-scale variability of water vapor in the atmosphere: implications for intercomparison of data from different measuring systems. By. Calbet et al. in Atmospheric Measurement Techniques.

Satellite observations of gravity wave momentum flux in the mesosphere and lower thermosphere (MLT): feasibility and requirements. By Q. Chen et al. in Atmospheric Measurement Techniques.

A Spectral Rotary Analysis of Gravity Waves: An Application during one of the SOUTHTRAC Flights. By A. de la Torre et al. in the Journal of Geophysical Research: Atmospheres.

A New Instrument for Balloon-Borne In Situ Aerosol Size Distribution Measurements, the Continuation of a 50 Year Record of Stratospheric Aerosols Measurements. By L.E. Kalnajs and T. Deshler in the Journal of Geophysical Research: Atmospheres.

Regional Perspective of Hadley Circulation and Its Uncertainties among Different Datasets: Spread in Reanalysis Datasets. By Y. Li et al. in the Journal of Geophysical Reasearch: Atmospheres.

New perspectives on historical climatology. By S. White et al. in WIREs Climate Change.

Discussion papers – open for comment:

Opinion: The Scientific and Community-Building Roles of the Geoengineering Model Intercomparison Project (GeoMIP) – Past, Present, and Future. By D. Visioni et al. in Atmospheric Chemistry and Physics.