Dear SPARC community,

Please find below the most recent SPARC eNews.

The SPARC website is updated frequently, so feel free to check for the most recent news items regularly. If you wish to have anything posted in the news section on the website, please don’t hesitate to contact us: office@sparc-climate.org

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SPARC eNews – May 2016
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13 May 2016
Call for cover photos: next issues of the SPARC newsletter
Any contributions from the SPARC community for potential cover photos for our next issues of the SPARC newsletter will be very much appreciated.
Please contact us at office@sparc-climate.org

13 May 2016
CMIP-6 and CCMI special issues available online
The CMIP-6 special issue can be found here:
>www.geosci-model-dev.net/special_issue590.html
And the CCMI special issue is online here:
>www.atmos-chem-phys.net/special_issue812.html

12 May 2016
SPARC Annual Report 2015

The SPARC Annual Report 2015 gives you a brief overview of the activities, programmatic developments, and achievements of the SPARC project in 2015.
>http://www.aparc-climate.org/publications/annual-reports/

12 May 2016
Ozone Research – Quo Vadis?
A 1-day colloquium to honour Prof. Dr. Johannes Staehelin
The recording of the individual presentations and discussions at this event which was held on 4 May 2016 can be found at
>http://www.video.ethz.ch/content/vp/en/events/2016/ozone.html

9 May 2016
Follow SPARC on Facebook and Twitter
SPARC is now on social media!
Follow us on Facebook and Twitter to keep up to date with the latest news.
>https://www.facebook.com/SPARC-WCRP-955412881180792
>https://twitter.com/WCRP_SPARC

9 May 2016
Opportunity for early career researchers: join the YESS SPARC group
The Young Earth System Scientists (YESS) community is a vibrant international group of multidisciplinary early career researchers. This bottom-up organised network is devoted to providing a voice for early career researchers and strengthening collaboration across all boundaries. To find out more about the opportunities that YESS offers and to join the SPARC YESS group see the website:
>http://www.yess-community.org

28 April 2016
A decade of progress in stratospheric aerosol observations – A contribution from the SSiRC activity
The SPARC Stratospheric Sulfur and its Role in Climate (SSiRC) activity has contributed significantly to a recent overview publication on observations of stratospheric aerosol.
The article can be found here:
>http://onlinelibrary.wiley.com/doi/10.1002/2015RG000511/full
and was highlighted in EOS here:
>https://eos.org/editors-vox/blowin-in-the-wind-observing-stratospheric-aerosols
and here:
>https://eos.org/research-spotlights/decade-progress-stratospheric-aerosol-research.

24 March 2016
SPARC in the latest WMO Bulletin
See the latest edition of the WMO Bulletin (65(1)) for an interesting article about climate predictability and the influence of the stratosphere by SPARC SSG member Alexey Karpechko.
>http://public.wmo.int/en/resources/bulletin/climate-predictability-stratosphere

8 March 2016
Call for abstracts: WCRP Model Hierarchies Workshop
Submit your abstract before 15 May 2016 for the WCRP Model Hierarchies Workshop which will be held in New Jersey, USA from 2-4 Nov 2016.
>http://www.aparc-climate.org/news/news/news/2016/03/08/first-announcement-wcrp-model-hierarchies-workshop-in-new-jersey-usa-2-4-nov-2016/

Find more news from WCRP, CliC, CLIVAR, and GEWEX.

Find vacancies at >http://www.aparc-climate.org/vacancies/

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Upcoming SPARC meetings 

16-20 May 2016
Atmospheric gravity waves: Sources and effects on weather and climate, NY, USA

24-27 May 2016
Joint GAW/SPARC workshop on UT/LS observations, Geneva, Switzerland

6-10 June 2016
SPARC DynVar workshop & S-RIP meeting, Helsinki, Finland

13-17 June 2016
6th International HEPPA-SOLARIS workshop, Helsinki, Finland

26-30 September 2016
SPARC QBO workshop “The QBO and its Global Influence – Past, Present and Future”, Oxford, UK
Abstract submission and pre-registration deadline: 31 May 2016

17-21 October 2016
SPARC Data Assimilation and S-RIP 2016 Workshop, Victoria, BC, Canada

31 October – 4 November 2016
24^th SPARC Scientific Steering Group Meeting, Berlin, Germany

Find all SPARC meetings.

Upcoming SPARC-related meetings

9-21 June 2016
3^rd European Earth System and Climate Modeling School, Helsinki, Finland

30 July – 7 August 2016
41^st COSPAR Scientific Assembly, Istanbul, Turkey

31 July – 5 August 2016
Asia Oceania Geosciences Society (AOGS) 13th Annual Meeting, Beijing, China

28 August – 2 September 2016
ISSAOS 2016 summer school on “Advanced Programming Techniques for the Earth System Science”, L’Aquila, Italy

4-9 September 2016
Quadrennial Ozone Symposium, Edinburgh, UK

14-16 September 2016
International Symposium on the Whole Atmosphere (ISWA), Tokyo, Japan

20-22 September 2016
Physics Dynamics Coupling in Weather and Climate Models, Richland, WA, USA

19-28 October 2016
Training School: Convective and volcanic clouds detection, monitoring and modeling, Tarquinia, Italy

28 November – 3 December 2016
Summer School in Atmospheric Composition and Dynamics, La Digue, Reunion Island, Seychelles

Find more SPARC-related meetings.

Find more meetings organised by the WCRP community.

 

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Science update

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

April 2016

• Responses of European precipitation distributions and regimes to different blocking locations. By P.M. Sousa et al. in Climate Dynamics.
• Atlantic Near-Term Climate Variability and the Role of a Resolved Gulf Stream. By L. Siqueira and B.P. Kirtman in Geophysical Research Letters.
• Characteristics of gravity waves from convection and implications for their parameterization in global circulation models. By C. Stephan et al. in the Journal of the Atmospheric Sciences.
• Sensitivity of resolved and parameterized surface drag to changes in resolution and parameterization. By A. van Niekerk et al. in the Quarterly Journal of the Royal Meteorological Society.
• Anthropogenic forcing on the Hadley circulation in CMIP5 simulations. By L. Tao and Y. Hu in Climate Dynamics.
• Characteristics of stratospheric warming events during Northern winter. By P. Maury et al. in the Journal of Geophysical research: Atmospheres.
• Is climate sensitivity related to dynamical sensitivity? By K.M. Grise and L.M. Polvani in the Journal of Geophysical research: Atmospheres.
• The impact of wave-mean flow interaction on the Northern Hemisphere polar vortex after tropical volcanic eruptions. By M. Bittner et al. in the Journal of Geophysical research: Atmospheres.Decadal predictions with the HiGEM high resolution global coupled climate model: description and basic evaluation. By L.C. Shaffrey et al. in Climate Dynamics.
• On the gravity wave forcing during the southern stratospheric final warming in LMDz. By A. De la Cámara et al. in the Journal of the Atmospheric Sciences.
• Interannual variability of temperature in the UTLS region over Ganges–Brahmaputra–Meghna river basin based on COSMIC GNSS RO data. By K. Khandu et al. in Atmospheric Measurement Techniques.
• Lagged Response of Tropical Tropospheric Temperature to Solar Ultraviolet Variations on Intraseasonal Timescales. By L.L. Hood et al. in the Journal of Geophysical Research: Atmospheres.
• The Impact of Two Coupled Cirrus Microphysics-Radiation Parameterizations on the Temperature and Specific Humidity Biases in the Tropical Tropopause Layer in a Climate Model. By A.J. Baran et al. in the Journal of Climate.
• Vertical momentum transports associated with moist convection and gravity waves in a minimal model of QBO-like oscillation. By E. Nishimoto et al. in the Journal of the Atmospheric Sciences.
• Influence of tropical cyclones on tropospheric ozone: possible implications. By S. Shankar Das et al. in Atmospheric Chemistry and Physics.
• ECMWF SSW forecast evaluation using infrasound. By P.S.M. Smets et al. in the Journal of Geophysical Research: Atmospheres.
• On the link between Barents-Kara sea-ice variability and European blocking. By P. Ruggieri et al. in the Journal of Geophysical Research: Atmospheres.
• Characteristics of gravity waves generated in the jet-front system in a baroclinic instability simulation. By Y.-H. Kim et al. in Atmospheric Chemistry and Physics.Global distribution of deep convection reaching tropopause in one-year GPM observations. By N. Liu and C. Liu in the Journal of Geophysical Research: Atmospheres.
• Influence of atmospheric waves on the formation and the maintenance of the subtropical jet during the Northern Hemisphere winter: A new method for analyzing the responses to specific forcings. By Y. Kuroda in the Journal of Geophysical Research: Atmospheres.
• Connection between the midlatitude mesosphere and sudden stratospheric warmings as measured by Rayleigh-scatter lidar. By L. Sox et al. in the Journal of Geophysical Research: Atmospheres.
• Impact of the Antarctic Ozone Hole on the Vertical Coupling of the Stratosphere-Mesosphere-Lower Thermosphere System. By S. Lubis et al. in the Journal of the Atmospheric Sciences.
• Stratospheric temperature trends over 1979-2015 derived from combined SSU, MLS and SABER satellite observations. By W.J. Randel et al. in the Journal of Climate.
• Vortex-wide chlorine activation by a mesoscale PSC event in the Arctic winter of 2009/10. By T. Wegner et al. in Atmospheric Chemistry and Physics.
• Exploring atmospheric blocking with GPS radio occultation observations. By L. Brunner et al. in Atmospheric Chemistry and Physics.
• Using beryllium-7 to assess cross-tropopause transport in global models. By H. Liu et al. in Atmospheric Chemistry and Physics.
• Structure and Dynamics of the Quasi-Biennial Oscillation in MERRA-2. By L. Coy et al. in the Journal of Climate.
• Vertical wind retrieved by airborne lidar and analysis of island induced gravity waves in combination with numerical models and in situ particle measurements. By F. Chouza et al. in Atmospheric Chemistry and Physics.
• Injection of lightning-produced NOx, water vapor, wildfire emissions, and stratospheric air to the UT/LS as observed from DC3 measurements. By H. Huntreiser et al. in the Journal of Geophysical Research: Atmospheres.
• Isolating the roles of different forcing agents in global stratospheric temperature changes using model integrations with incrementally added single forcings. By V. Aquila et al. in the Journal of Geophysical Research: Atmospheres.
• QBO modulation of the mesopause gravity wave momentum flux over Tierra del Fuego. By R. J. de Wit et al. in Geophysical Research Letters.
• Stratospheric intrusion into the troposphere during the tropical cyclone Nilam (2012). By S.S. Das et al. in the Quarterly Journal of the Royal Meteorological Society.
• Does the Madden-Julian Oscillation Modulate Stratospheric Gravity Waves? By A.C. Moss et al. in Geophysical Research Letters.
• A Lagrangian description on the troposphere-to-stratosphere transport changes associated with the stratospheric water drop around the year 2000. By F. Hasebe and T. Noguchi in Atmospheric Chemistry and Physics.
• Stratospheric ozone chemistry feedbacks are not critical for the determination of climate sensitivity in CESM1(WACCM). By D.R. Marsh et al. in Geophysical Research Letters.
• Air parcel trajectory dispersion near the tropical tropopause. By J.W. Bergman et al. in the Journal of Geophysical Research: Atmospheres.
• Troposphere-stratosphere dynamical coupling in the Southern high latitudes, and its linkage to the Amundsen Sea. By M.E. England et al. in the Journal of Geophysical Research: Atmospheres.
• Stratospheric CH4 and CO2 profiles derived from SCIAMACHY solar occultation measurements. By S. Noël et al. in Atmospheric Measurement Techniques.
• The vertical distribution of volcanic SO2 plumes measured by IASI. By E. Carponi et al. in Atmospheric Chemistry and Physics.
• Variability of water vapour in the Arctic stratosphere. By L. Thölix et al. in Atmospheric Chemistry and Physics.
• The contribution of ozone to future stratospheric temperature trends. By A.C. Maycock in Geophysical Research Letters.

March 2016

• Stratospheric aerosol – Observations, processes, and impact on climate. By S. Kremser et al. in Reviews of Geophysics.
• Global stratospheric measurements of the isotopologues of methane from the Atmospheric Chemistry Experiment Fourier transform spectrometer. By E.M. Buzan et al. in Atmospheric Measurement Techniques.
• Intercomparison of in situ water vapor balloon-borne measurements from Pico-SDLA H2O and FLASH-B in the tropical UTLS. By M. Ghysels et al. in Atmospheric Measurement Techniques.
• The stratospheric pathway for Arctic impacts on mid-latitude climate. By T. Nakamura et al. in Geophysical Research Letters.
• Lagrangian temperature and vertical velocity fluctuations due to gravity waves in the lower stratosphere. By A. Podglajen et al. in Geophysical Research Letters.
• Progress towards high-resolution, real-time radiosonde reports. By B. Ingleby et al. in the Bulletin of the American Meteorological Society.
• The Influence of the Madden-Julian Oscillation on Northern Hemisphere Winter Blocking. By S.A. Henderson et al. in the Bulletin of the American Meteorological Society.
• Maryland Summer Stratospheric Intrusions. By L.E. Ott et al. in the Journal of Geophysical Research: Atmospheres.
• Detection of trends in surface ozone in the presence of climate variability. By E.A. Barnes et al. in the Journal of Geophysical Research: Atmospheres.
• Predictability of the Stratospheric Polar Vortex Breakdown: An Ensemble Reforecast Experiment for the Splitting Event in January 2009. By S. Noguchi et al. in the Journal of Geophysical Research: Atmospheres.
• Quantifying Isentropic Stratosphere-Troposphere Exchange (STE) of Ozone. By H. Yang et al. in the Journal of Geophysical Research: Atmospheres.
• Energetic particle precipitation: a major driver of the ozone budget in the Antarctic upper stratosphere. By A. Damiani et al. in Geophysical Research Letters.
• Upper tropospheric humidity changes under constant relative humidity. By K. Gierens and K. Eleftheratos in Atmospheric Chemistry and Physics.
• On the Composite Response of the MLT to Major Sudden Stratospheric Warming Events with Elevated Stratopause. By V. Limpasuvan et al. in the Journal of Geophysical Research: Atmospheres.
• Highly significant responses to anthropogenic forcings of the midlatitude jet in the Southern Hemisphere. By A. Solomon and L.M. Polvani in the Journal of Climate.
• Stratospheric ozone changes under solar geoengineering: implications for UV exposure and air quality. By P.J. Nowack et al. in Atmospheric Chemistry and Physics.
• Upper tropospheric water vapour variability at high latitudes – Part 1: Influence of the annular modes. By C.E. Sioris et al. in Atmospheric Chemistry and Physics.
• A new class of vacillations of the stratospheric polar vortex. By R.K. Scott in the Quarterly Journal of the Royal Meteorological Society.
• The atmospheric partial lifetime of carbon tetrachloride with respect to the global soil sink. By R. Rhew and J. Happell in Geophysical Research Letters.
• Long-term validation of ESA operational retrieval (version 6.0) of MIPAS Envisat vertical profiles of methane, nitrous oxide, CFC11, and CFC12 using balloon-borne observations and trajectory matching. By A. Engel et al. in Atmospheric Measurement Techniques.
• Satellite-based global volcanic SO2 emissions and sulfate direct radiative forcing during 2005-2012. By C. Ge et al. in the Journal of Geophysical Research: Atmospheres.
• An assessment of the consistency between satellite measurements of upper tropospheric water vapor. By E.-S. Chung et al. in the Journal of Geophysical Research: Atmospheres.
• Polar stratospheric cloud evolution and chlorine activation measured by CALIPSO and MLS, and modeled by ATLAS. By H. Nakajima et al. in Atmospheric Chemistry and Physics.
• Global HCFC-22 measurements with MIPAS: retrieval, validation, global distribution and its evolution over 2005–2012. By M. Chirkov et al. in Atmospheric Chemistry and Physics.
• Convective sources of trajectories traversing the tropical tropopause layer. By A.-S. Tissier and B. Legras in Atmospheric Chemistry and Physics.
• Atmospheric histories and global emissions of halons H-1211 (CBrClF2), H-1301 (CBrF3), and H-2402 (CBrF2CBrF2). By M.K. Vollmer et al. in the Journal of Geophysical Research: Atmospheres.
• Trapping, chemistry, and export of trace gases in the South Asian summer monsoon observed during CARIBIC flights in 2008. By A. Rauthe-Schöch et al. in Atmospheric Chemistry and Physics.
• Variational data assimilation for the optimized ozone initial state and the short-time forecasting. By S.-Y. Park et al. in Atmospheric Chemistry and Physics.
• Observational constraints on the efficiency of dehydration mechanisms in the tropical tropopause layer. A.W. Rollins et al. in Geophysical Research Letters.
• Climatic impacts of stratospheric geoengineering with sulfate, black carbon and titania injection. By A.C. Jones et al. in Atmospheric Chemistry and Physics.
• Drivers of changes in stratospheric and tropospheric ozone between year 2000 and 2100. By A. Banarjee et al. in Atmospheric Chemistry and Physics.
• The influence of atmospheric blocking on extreme winter minimum temperatures in North America. By K. Whan et al. in the Journal of Climate.
• Tropical Upper Tropospheric Potential Vorticity Intrusions During Sudden Stratospheric Warmings. By J.R. Albers et al. in the Journal of Atmospheric Sciences.
• The impact of a future solar minimum on climate change projections in the Northern Hemisphere. By G. Chiodo et al. in Environmental Research Letters.
• Taking the chill off: Future Arctic sea-ice loss reduces severity of cold air outbreaks in midlatitudes. By B. Ayarzagüena and J.A. Screen in Geophysical Research Letters.
• On the formation of tropical rings of atomic halogens: Causes and implications. By A. Saiz-Lopez and R. P. Fernandez in Geophysical Research Letters.
• The impact of the direct effects of sulfate and black carbon aerosols on the sub-seasonal march of the East Asian subtropical summer monsoon. By D. Wang et al. in the Journal of Geophysical Research: Atmospheres.
• The airborne mass spectrometer AIMS – Part 1: AIMS-H2O for UTLS water vapor measurements. By S. Kaufmann et al. in Atmospheric Measurement Techniques.
• Decadal climate predictions using sequential learning algorithms. By E. Strobach and G. Bel in the Journal of Climate.
• Ozone and carbon monoxide over India during the summer monsoon: regional emissions and transport. By N. Ojha et al. in Atmospheric Chemistry and Physics.
• Stratospheric Gravity Wave Fluxes and Scales during DEEPWAVE. By R.B. Smith et al. in the Journal of Atmospheric Sciences.
• The Convective Transport of Active Species in the Tropics (CONTRAST) Experiment. By L.L. Pan et al. in the Bulletin of the American Meteorological Society.
• What is the Polar Vortex, and how does it influence weather? By D.W. Waugh et al. in the Bulletin of the American Meteorological Society.
• Transport of ice into the stratosphere and the humidification of the stratosphere over the 21st century. By A.E. Dessler et al. in Geophysical Research Letters.
• The double peak in upwelling and heating in the tropical lower stratosphere. By A. Ming et al. in the Journal of the Atmospheric Sciences.
• Improved simulation of tropospheric ozone by a global-multi-regional two-way coupling model system. By Y. Yan et al. in Atmospheric Chemistry and Physics.
• Sensitivity of Thin Cirrus Clouds in the Tropical Tropopause Layer to Ice Crystal Shape and Radiative Absorption. By R.D. Russotto et al. in the Journal of Geophysical Research: Atmospheres.
• Continued emissions of carbon tetrachloride from the United States nearly two decades after its phaseout for dispersive uses. By L. Hu et al. in the Proceedings of the National Academy of Sciences of the United States of America.
• Co-ordinated Airborne Studies in the Tropics (CAST). By N.R.P. Harris et al. in the Bulletin of the American Meteorological Society.
• Revisiting the relationship between jet position, forced response and annular mode variability in the southern mid-latitudes. By I.R. Simpson and L.M. Polvani. in Geophysical Research Letters.
• Impacts of Interactive Stratospheric Chemistry on Antarctic and Southern Ocean Climate Change in the Goddard Earth Observing System – Version 5 (GEOS-5). By F. Li et al. in the Journal of Climate.
• Sensitivity of the surface responses of an idealized AGCM to the timing of imposed ozone depletion-like polar stratospheric cooling. By A. Sheshadri and A. Plumb in Geophysical Research Letters.
• 11-year Solar Cycle Signal in the NAO and Atlantic / European Blocking. By L.J. Gray et al. in the Quarterly Journal of the Royal Meteorological Society.
• Simulated long-term climate response to idealized solar geoengineering. By L. Cao et al. in Geophysical Research Letters.
• Interannual variability in effective diffusivity in the upper troposphere / lower stratosphere from reanalysis data. By M. Abalos et al. in the Quarterly Journal of the Royal Meteorological Society.
• Transport pathways from the Asian monsoon anticyclone to the stratosphere. By H. J. Garny and W. Randel in Atmospheric Chemistry and Physics.
• The role of planetary waves in the tropospheric jet response to stratospheric cooling. By K.L. Smith and R.K. Scott in Geophysical Research Letters.
• Evaluation of the ACCESS – chemistry–climate model for the Southern Hemisphere. By K.A. Stone et al. in Atmospheric Chemistry and Physics.

Find older Science Updates at >http://www.aparc-climate.org/news

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For feedback or input to the next eNews edition please contact:

office@sparc-climate.org
SPARC Office
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Institute for Atmospheric and Climate Science (IAC)
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www.sparc-climate.org