SPARC Newsletter No. 54 (2020)

• The fourth Workshop and third Training School of ACAM (p. 19)
• IGAC/SPARC CCMi summer school and workshop (p. 22)
• Update on: Towards Unified Error Reporting (TUNER) (p. 25)
• The 14th SPARC Data Assimilation Working Group Workshop (p. 28)
• Report on the SOLARIS-HEPPA Working Group Meeting (p. 30)
• Joint DynVarMIP/CMIP6 and SPARC DynVar & SNAP Workshop:
  Atmospheric Circulation in a Changing Climate (p. 33)
• Singapore Upper Air Station visited by SPARC researchers (p. 42)

SPARC Newsletter No. 53 (2019)

• Report on the International Symposium on the Unexpected
  Increase in Emissions of Ozone-Depleting CFC-11 (p. 9)
• Report on the 2nd LOTUS workshop (p. 19)
• Report on FISAPS Workshop on Atmospheric Turbulence (p. 22)
• Report on the second SPARC OCTAV-UTLS meeting (p. 27)
• Update on: Towards Unified Error Reporting (TUNER) (p. 30)
• Seeking New Quantitative Constraints on Orographic Gravity
  Wave Stress and Drag to Satisfy Emerging Needs in Seasonalto-Subseasonal and Climate Prediction (p. 31)
• SSiRC Science Steering Group Meeting (p. 36)
• WMO and SPARC at IUGG-2019 in Montréal (p. 40)

SPARC Newsletter No. 52 (2019)

• Report on the 6th SPARC General Assembly, Kyoto, Japan
  (p. 8)
• Report on the 7th HEPPA-SOLARIS Workshop (p. 16)
• S-RIP activities in 2018 (p. 19)
• Report on the 2nd Atmospheric Temperature Changes and
  their Drivers (ATC) Activity Workshop (p. 21)
• Report on the SATIO-TCS side meeting and related discussions at
  the 6th SPARC General Assembly 2018 (p. 24)

SPARC Newsletter No. 51 (2018)

• SOLARIS-HEPPA working group meeting (p. 11)
• Data analysis workshop on the Balloon measurement campaigns
  of Asian Tropopause Aerosol Layer (p. 16)
• SPARC workshop “The UTLS: current status and emerging challenges” (p. 19)
• Chapman conference on Stratospheric Aerosol in the postPinatubo Era: Processes, Interactions and Importance (p. 24)
• Early Career Researchers Side Meeting at the Chapman Conference (p. 28)
• SPARC well represented at climate conference in Germany (p. 31)

SPARC Newsletter No. 50 (2018)

• SPARC local workshop on “WCRP grand challenges and regional climate change” (p. 7)
• Report on the first SPARC OCTAV/UTLS meeting, Boulder, CO, USA (p. 10)
• IUGG-SPARC-EGU training school on Stratosphere-Troposphere Interactions (p. 14)
• Stratospheric Aerosol Workshop Report (p. 16)
• Report on the joint SPARC Dynamics and Observations Workshop: SATIO-TCS, FISAPS and QBOi, Kyoto, Japan (p. 19)
• The 2017 S-RIP workshop and the 13th SPARC data assimilation workshop (p. 26)
• SPARC celebrates 25 years and the move of its International Project Office (p. 30)

SPARC Newsletter No. 49 (2017)

• WAVAS II Annual Meeting (p. 23)
• SSiRC Meeting at ISSI (p. 26)
• SPARC LOTUS workshop report (p. 30)
• The Third Workshop on Atmospheric Composition and the Asian Monsoon (ACAM) and the Second ACAM Training School (p. 32)
• Report on the IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) 2017 Science Workshop (p. 35)
• The First TUNER Meeting (p. 42)

SPARC Newsletter No. 48 (2017)

• WCRP/SPARC workshop on Challenges for Climate Science – Synergies between SPARC and the WCRP Grand Challenges (p. 8)
• Report on the international workshop on Stratosphere-Troposphere Dynamical Coupling in the Tropics (p. 17)
• Report on the SPARC Gravity Wave Symposium (p. 22)
• The large-scale atmospheric circulation: SPARC/DynVar and S-RIP workshop (p. 26)
• Workshop on drag processes and their links to the large-scale circulation (p. 32)
• Report on the SPARC QBO workshop (p. 33)
• The 12th SPARC Data Assimilation workshop and 2016 S-RIP workshop (p. 41)

SPARC Newsletter No. 47 (2016)

•  The 2015 SPARC Reanalysis Intercomparison Project (S-RIP) workshop and the 11th SPARC data assimilation workshop, by Q. Errera et al. (p. 12)
• Stratospheric Change and its Role for Climate Prediction, SHARP 2016 workshop report, by U. Langematz et al. (p. 20)
• Workshop on Dynamics, Transport, and Chemistry of the UTLS Asian Monsoon, by W. Randel (p. 24)
• Report on the workshop on Atmospheric Blocking, by G. Masato et al. (p. 28)
• The 2nd workshop on Stratospheric Sulfur and its Role in Climate, by S. Kremser and L. Thomason (p. 31)
• Report on the 1st Atmospheric Temperature Changes and their Drivers (ATC) activity workshop, by A. Maycock et al. (p. 36)
• The GAW/NDACC/SPARC Upper Troposphere and Lower Stratosphere (UTLS) observation workshop, by M. Hegglin et al. (p. 39)

SPARC Newsletter No. 46 (2016)

• Long-term variations of solar activity and their impacts: From the Maunder Minimum to the 21st century, COST Workshop report, by E. Rozanov et al. (p. 15)
• Report on the 2nd workshop on Atmospheric Composition and the Asian Monsoon (ACAM), by L. Pan and J. Crawford (p. 20)
• The width of the tropics: Climate variations and their impacts, Report on the AGU Chapmen Conference 2015, by P. W. Staten et al. (p. 26)
• Report on the SPARC Storm Tracks workshop, by T. Shaw and M. Baldwin (p. 31)
• Report on the 8th Atmospheric Limb workshop, by K. Pérot et al. (p. 33)
• Report on the IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) 2015 Science Workshop, by M. Hegglin et al. (p. 37)

SPARC Newsletter No. 45 (2015)

• Report on the SPARC regional workshop on the Role of the stratosphere in climate variability and prediction (p. 10)
• SPARC Capacity Development Workshop (p. 12)
• Report on the 1st QBO Modelling and Reanalyses Workshop (p. 19)
• Bicentary of the Great Tambora Eruption: Implications for Stratosphere-Troposphere Processes (p. 26)
• SPARC workshop on Stratospheric Temperature Trends (p. 31)

SPARC Newsletter No. 44 (2015)

• Report on the 2nd Joint SOLARIS-HEPPA Meeting (p. 14)
• Report on the MOZAIC-IAGOS Scientific Symposium on Atmospheric Composition Observations by Commercial Aircraft (p. 18)
• Report on the Latsis Symposium on Atmosphere and Climate Dynamics (p. 24)
• Report on the SPARC Workshop on Polar Stratospheric Clouds (p. 26)
• Report from the 10th SPARC Data Assimilation Workshop and the 2014 SPARC S-RIP Workshop (p. 31)

SPARC Newsletter No. 43 (2014)

• Report on the 5th SPARC General Assembly, by July Arblaster et al. (p. 10)
• Report on the 1st Stratospheric Sulfur and its Role in Climate Workshop, by Larry W. Thomason et al. (p. 25)
• IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) 2014 Science Workshop, by Michaela I. Hegglin et al. (p. 32)

SPARC Newsletter No. 42 (2014)

• Report on the IGAC/SPARC Chemistry-Climate Model Initiative (CCMI) 2013 Science Workshop (p. 23)
• Workshop on Research Applications of High Resolution Radiosonde Data (p. 28)
• Report on the 7th Atmospheric Limb Conference (p. 32)
• Report on the Atmospheric Composition and the summer Asian Monsoon (ACAM) Workshop (p. 40)

SPARC Newsletter No. 41 (2013)

• Report on the Regional WCRP/SPARC Workshop with focus on the Southern Hemisphere and South America (p. 11)
• Combined SPARC Data Requirements/SPIN Mid-Term Review Workshop (p. 25)
• WCRP Special Workshop on Climatic Effects of Ozone Depletion in the Southern Hemisphere: Assessing the evidence and identifying gaps in the current knowledge (p. 29)
• Report on the WCRP Regional Workshop on Stratosphere-Troposphere Processes And their Role in Climate (p. 35)
• Report on the 3rd SPARC DynVar Workshop on Modelling the Dynamics and Variability of the Stratosphere-Troposphere System (p. 40)
• Report on the 1st SPARC Stratospheric Network for the Assessment of Predictability (SNAP) (p. 44)
• SPARC Reanalysis Intercomparison Project (S-RIP) Planning Meeting (p. 52)

SPARC Newsletter No. 40 (2013)

• SPARC Workshop on the Brewer-Dobson Circulation (p. 11)
• Report on the 9th SPARC Data Assimilation Workshop (p. 21)
• Report on the 1st Joint SOLARIS-HEPPA Meeting (p. 33)
• U.S. – Japan Bilateral Workshop on the Tropical Tropopause Layer: State of the Current Science and Future Observational Needs (p. 37)

SPARC Newsletter No. 39 (2012)

• Report on the Regional SPARC Science Workshop held in Zurich, Switzerland, by T. Peter, F. Tummon (p. 11)
• Report on the 6th Atmospheric Limb Conference, by T. Sano et al. (p. 15)
• Report on the Workshop on Stratospheric Sudden Warming and its Role in Weather and Climate Variations, by S. Yoden et al. (p. 17)

SPARC Newsletter No. 38 (2012)

• Report on the 8th SPARC Data Assimilation Workshop, by D. Jackson and S. Polavarapu (p. 9)

SPARC Newsletter No. 37 (2011)

• The Workshop on Tropical Stratosphere-Troposphere: Implications on Indian Monsoon and Climate, by P.C.S. Devara et al. (p. 14)
• Report on the Chapman Conference on Atmospheric Gravity Waves and their Effects on General Circulation and Climate, by M.J. Alexander et al. (p. 18)

SPARC Newsletter No. 36 (2011)

• Report on the 7th SPARC Data Assimilation Workshop, by S. Polavarapu and D. Jackson (p. 5)
• Report on WCRP Workshop on Seasonal to Multi-Decadal Predictability of Polar Climate, by T.G. Shepherd et al. (p. 11)
• Report on the SPARC DynVar Workshop 2 on Modelling the Dynamics and Variability of the Stratosphere-Troposphere System, by E. Manzini et al. (p. 19)

SPARC Newsletter No. 35 (2010)

• Report on the 5th Limb Conference and Workshop, by E. Kyrölä et al. (p. 14)

SPARC Newsletter No. 34 (2010)

• WCC-3: not just another climate conference, by V. Ryabinin (p. 9)
• SPARC Volcano Workshop, by P. Heckendorn et al. (p. 10)
• Report on the SPARC data assimilation meeting at MOCA-09, by S. Polavarapu and D. Jackson (p. 15)

SPARC Newsletter No. 32 (2009)

• Report on the 4th General Assembly, by M. Baldwin et al. (p. 8)
• Report on the SPARC Workshop on the Role of Halogen Chemistry in Polar Stratospheric Ozone Depletion, by B.-M. Sinnhuber and M.J. Kurylo (p. 16)
• Report on SPARC Ozone Recovery Workshop, by G. Bodeker and D. Waugh (p. 21)
• A SPARC Perspective on the World Modelling Summit, by E. Manzini et al. (p. 25)

SPARC Newsletter No. 31 (2008)

• Report on the Chapman Conference: The Role of the Stratosphere in Climate and Climate Change, by M.P. Baldwin et al. (p. 9)
• Reunion Island International Symposium on Tropical Stratosphere and Upper Troposphere, by H. Bencherif and A. Hauchecorne (p. 17)
• Report on the First WCRP Workshop on Seasonal Prediction, by B. Kirtman et al. (p. 20)

SPARC Newsletter No. 30 (2008)

• Upper Tropospheric Humidity: A report on an international workshop, by T. Peter et al. (p. 9)
• Report on the 3rd SPARC CCMVal workshop, by V. Eyring et al.

 (p. 20)
• Report on the Joint SPARC Workshop in Data Assimilation and International Polar Year (IPY), by S. Polavarapu
 (p. 27)
• Report on the Regional SPARC Science workshop, by B.-M. Sinnhuber et al. (p. 33)

SPARC Newsletter No. 28 (2007)

• Modelling of Deep Convection and Chemistry and their Roles in the Tropical Tropopause Layer: SPARC-GEWEX/GCSS-IGAC Workshop, by M. Barth et al. (p. 7)
• Report on the SPARC Data Assimilation Workshop, by S. Polavarapu et al. (p. 12)
• A note on an AGU spring meeting discussion of the role of atmospheric water vapour in climate and atmospheric composition, by N.G. Andronova et al. (p. 22)
• Report on the Gravity Wave Retreat, by J. H. Richter et al. (p. 26)

SPARC Newsletter No. 27 (2006)

• Report on the 3rd International Lim Workshop, by E.J. Llewellyn (p. 19)

SPARC Newsletter No. 26 (2006)

• Processes governing the chemical composition of the extratropical UTLS. A report from the joint SPARC-IGAC Workshop, by K. Law et al. (p. 8)
• Report on the Joint SPARC Workshop on Data Assimilation and Stratospheric Winds, by S. Polavarapu and T. G. Shepherd (p. 20)
• Summary of the CCMVal 2005 Workshop on “Process-Oriented Validation of Coupled Chemistry-Climate Models” by V. Eyring et al. (p. 28)

SPARC Newsletter No. 25 (2005)

• Report on GRIPS, by D. Pendlebury and S. Pawson (p. 6)
• Report on the 1st WG I expert meeting on the LAUTLOS Campaign, by U. Leiterer et al. (p. 18)

SPARC Newsletter No. 24 (2005)

• Report on the SPARC 3rd General Assembly, by J.P. Burrows et al. (p. 3)
• Report on the 2nd Sower Meeting, by F. Hasebe et al. (p. 21)
• Report on the Quadrennial Symposium on Atmospheric Ozone, by C. Zerefos (p. 28)

SPARC Newsletter No. 23 (2004)

• Report on Chapman Conference on Gravity Wave Processes and Parameterisation, by K. Hamilton (p. 15)

SPARC Newsletter No. 22 (2003)

• The SPARC Workshop on Understanding Seasonal Temperature Trends in the Stratosphere, by W. Randel et al.
• Brief Report on the Workshop on Process-Oriented Validation of Coupled Chemistry-Climate Models, by V. Eyring et al.

SPARC Newsletter No. 21 (2003)

• Highlights from the Joint SPARC -IGAC Workshop on Climate-Chemistry Interaction, by A.R. Ravishankara and S. Liu (p. 2)
• Report of the SPARC Workshop on the Role of the Stratosphere in Tropospheric Climate, by N. Gillet et al. (p. 7)
• Report on ECMWF-SPARC Workshop on Modelling and Assimilation for Stratosphere and Tropopause, by E. Oikonomou (p. 9)

SPARC Newsletter No. 20 (2003)

• Report on Stratospheric Variations and Climate Symposium, by S. Miyahara et al. (p. 21)
• Report on the 34th COSPAR Scientific Assembly in Houston, by J. Gille et al. (p. 35)

SPARC Newsletter No. 19 (2002)

• Report on the Atmospheric Chemistry and Climate Meeting, Zurich – Switzerland, June 29-30, 2002
• Report on the Data Assimilation Workshop, University of Maryland Baltimore County -USA, 10-12 June, 2002
• Report on the 2nd National German SPARC Workshop, Frankfurt – Germany, April 08-09, 2002

SPARC Newsletter No. 18  (2002)

• Assessment of Stratospheric Aerosol Properties (ASAP), Report on the Assessment Kick-Off Workshop, Paris – France, 4-6 November 2001

SPARC Newsletter No.17 (2001)

• Report on the SPARC Tropopause Workshop, Bad Tölz – Germany, 17-21 April, 2001
• Report on the SPARC/IOC Workshop on Understanding Ozone Trends, University of Maryland, College Park – USA, March 7-9, 2001

SPARC Newsletter No.16 (2001)

• SPARC 2000 Session Reports, Mar del Plata – Argentina, 6-10 November 2000

SPARC Newsletter No. 14 (2000)

• IGAC for SPARC in 9 minutes, University of East Anglia, Norwich – UK. 

SPARC/IGAC working group on Ozone photolysis, Oxford – UK, September 1999