The HEMERA summer school is open to advanced master students, PhD students and young scientists interested/involved in balloon research, technicians and engineers from the participating agencies and industries. The participation of technicians, engineers and scientists from eastern and southern European countries is particularly welcome.

Major themes of the summer school will cover the following:

1. The history, early and modern balloon science and industrial opportunities, recent advances and discoveries.
2. The atmospheric environment
3. The general logistics of balloon types, flight control, limitations of the ballooning environment, launching techniques, regulations.
4. Specific scientific and industrial ballooning operations of the agencies (CNES, SSC, ASI/CSA….
5. More detail on modern scientific results from ballooning and the instruments involved.
6. Future work, opportunities, measurements, ..

Teaching at the HEMERA summer school will be provided via lectures and showing casing balloon equipment.  One afternoon and the evening of Sept. 11, 2019 will be dedicated to a social programme (see programme).

Registration will open soon.  Please visit the HEMERA summer school webpage for more information.

Participation fee: 100€ (including catering, the summer school diner, and participation in the social program)

Registration deadline: 26 July 2019

Find webpage

The second joint AerChemMIP / RFMIP / PDRMIP Workshop in support of CMIP

New Science from CMIP6 multi-model composition-forcing-response experiments

Download second announcement (PDF, 0.2 MB)

June 11th – 14th, 2019
Room A006, Friend Center, 65 Olden St, Princeton, New Jersey 08540, USA

Deadlines:

Abstract submission: April 12 2019,
Registration: May 2 2019

Workshop Goals:

Discuss the use of AerChemMIP, RFMIP, and PDRMIP integrations and diagnostics to advance our understanding of composition, forcing and feedback processes for better constraints on past changes and future projections.

Below are few examples of questions we are interested in discussing, with a full list provided on the website:

• How do the different short- and long-lived constituents contribute to the regional trends in radiative forcing?
• How has atmospheric composition and oxidizing capacity evolved in response to natural and anthropogenic drivers?
• What are the implications of composition changes for air quality and radiative forcing?
• What is the response of natural emissions to anthropogenic influences?
• What are the local and remote temperature and precipitation responses induced from changes in composition?
• How does model diversity in radiative forcing translate to diversity in precipitation and temperature?
• What is the role of uncertainty in radiative transfer parametrizations in the calculation of radiative forcing?
• What are the robust model responses to tightly specified aerosol forcing from preindustrial to present day?

Workshop Format:

The workshop will run from 9:00am on Tuesday 11th June and end at 1:00pm on Friday June 14th. The format will include science presentations (oral and poster) and discussion sessions.

Scientific Organizing Committee:

Bill Collins (U Reading), Stephanie Fiedler (MPI), Piers Forster (U Leeds), Jean-François Lamarque (NCAR), Gunnar Myhre (CICERO), Vaishali Naik (GFDL), David Paynter (GFDL), Robert Pincus (U Colorado), V. Ramaswamy (GFDL), Michael Schulz (Met Norway), and Bjorn Stevens (MPI)

Local Organizing Committee:

David Paynter, Vaishali Naik, and V. Ramaswamy

More information:
AerChemMIP (Aerosols and Chemistry MIP)
RFMIP (Radiative Forcing MIP)
PDRMIP (Precipitation Driver Response MIP)

workshop webpage

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

Troposphere-Stratosphere Coupling Following Tropospheric Blocking and Extratropical Cyclones. By H.E. Attard and A.L. Lang in the Monthly Weather Review.

InSAR Meteorology: High‐Resolution Geodetic Data Can Increase Atmospheric Predictability. By P.M.A. Miranda et al. in the Geophysical Research Letters.

Impacts of tropical tropopause warming on the stratospheric water vapor. By Y. Xia et al. in Climate Dynamics.

Discussion papers – open for comment:

Implicationsof constant CFC-11 concentrationsfor the future ozone layer. By M. Dameris, P. Jöckel, and M. Nützel in Atmospheric Chemistry and Physics.

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

On the Interplay Between Convective Aggregation, Surface Temperature Gradients, and Climate Sensitivity. By D. Coppin and S. Bony in the Journal of Advances in Modeling Earth Systems.

Estimating the Frequency of Sudden Stratospheric Warming Events from Surface Observations of the North Atlantic Oscillation. By D.I.V. Domeisen in the Journal of Geophysical Research: Atmospheres.

Unravelling the microphysics of polar mesospheric cloud formation. By D. Duft, M. Nachbar, and T. Leisner in Atmospheric Chemistry and Physics.

Evaluating the relationship between interannual variations in the Antarctic Ozone Hole and Southern Hemisphere surface climate in chemistry-climate models. By Z.E. Gillett et al. in the Journal of the Climate.

On the value of reanalyses prior to 1979 for dynamical studies of stratosphere–troposphere coupling. By P. Hitchcock in Atmospheric Chemistry and Physics.

Eurasian Cold Air Outbreaks under Different Arctic Stratospheric Polar Vortex Strength. By J. Huang and W. Tian in the Journal of Atmospheric Sciences.

Indian summer monsoon onset signatures on the tropical tropopause layer. By S. RavindraBabu et al. in the Atmospheric Science Letters.

The NASA Wallops Flight Facility Digital Ozonesonde Record: Reprocessing, Uncertainties, and Dual Launches. By J.C. Witte et al. in the Journal of Geophysical Research: Atmospheres.

Impacts of tropical tropopause warming on the stratospheric water vapor. By Y. Xia et al. in Climate Dynamics.

Statistical study of atmospheric turbulence by Thorpe analysis. By J. Zhang et al. in the Journal of Geophysical Research: Atmospheres.

Discussion papers – open for comment:

Quantification of water vapour transport from the Asian monsoon to the stratosphere. By M. Nützel et al. in Atmospheric Chemistry and Physics.

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

Highlight articles (office choice):

Climate research for the twenty-first century. By B. Wake in Nature Climate Change.
(An interview with Jamie Watts on the work of the WCRP)

Overview paper: New insights into aerosol and climate in the Arctic. By J.P.D. Abbatt et al. in Atmospheric Chemistry and Physics.

Three Decades of Atmospheric Optics Research in Camagüey, Cuba. By J.C. Antuña-Marrero, A. Rodriguez-Vega, and A. Robock in Earth & Space Science News (EOS).

Global assimilation of Loon stratospheric balloon observations. By L. Coy et al. in the Journal of Geophysical Research: Atmospheres.

Jet-precipitation relation and future change of mei-yu / baiu rainband and subtropical jet in CMIP5 coupled GCM simulations. By T. Horinouchi et al. in the Journal of the Climate.

Implication of tropical lower stratospheric cooling in recent trends in tropical circulation and deep convective activity. By K. Kodera et al. in Atmospheric Chemisry and Physics.

Celebrating the anniversary of three key events in climate change science. By B.D. Santer et al. in Nature Climate Change.

Homogenization of daily temperature series in the European Climate Assessment & Dataset. By A.A. Squintu et al. in the International Journal of Climatology.

Discussion papers – open for comment:

The impact of increases in South Asian anthropogenic emissions of SO2 on sulfate loading in the upper troposphere and lower stratosphere during the monsoon season and the associated radiative impact. By S. Fadnavis et al. in Atmospheric Chemistry and Physics.

In a comprehensive review, the SPARC LOTUS activity assessed long-term trends of Ozone in the Stratosphere.

Find SPARC Report No. 9,

SPARC/IO3C/GAW Report on Long-term Ozone Trends and Uncertainties in the Stratosphere

edited by the SPARC LOTUS activity team.

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

Evidence for a major missing source in the global chloromethane budget from stable carbon isotopes. By E. Bahlmann et al. in Atmospheric Chemistry and Physics.

Type Classification of Sudden Stratospheric Warming Based on Pre- and Post-Warming Periods. By H. Choi, B.-M. Kim, and W. Choi in the Journal of the Climate.

Global Impacts of ENSO Reach into the Stratosphere. By D.I.V. Domeisen, C.I. Garfinkel, and A.H. Butler in Earth & Space Science News (EOS).

Recent Trends in Stratospheric Chlorine From Very Short‐Lived Substances. By R. Hossaini et al. in the Journal of Geophysical Research: Atmospheres.

The effects of a well-resolved stratosphere on the simulated boreal winter circulation in a climate model. By Y. Kawatani et al. in the Journal of the Atmospheric Sciences.

Detection and attribution of upper-tropospheric warming over the tropical western Pacific. By Y. Li et al. in Climate Dynamics.

Bridging the Weather-to-Climate Prediction Gap. By A. Mariotti et al. in Earth & Space Science News (EOS).

An Introduction to Atmospheric Gravity Wave Science in the Polar Regions and First Results From ANGWIN. By T. Moffat-Griffin in the Journal of Geophysical Research: Atmospheres.

Interpreting contemporary trends in atmospheric methane. By A.J. Turner, C. Frankenberg, and E.A. Kort in the Proceedings of the National Academy of Sciences of the United States of America (PNAS).

Understanding the variation of stratosphere–troposphere coupling during stratospheric northern annular mode events from a mass circulation perspective. By Y. Yu and R. Ren in Climate Dynamics.

An Arctic‐Tibetan connection on subseasonal to seasonal time scale. By Y. Zhang, T. Zhu, and Y. Xue in the Geophysical Research Letters.

Discussion papers – open for comment:

Comparison of equatorial wave activity in the tropical tropopause layer and stratosphere represented in reanalyses. By Y.-H. Kim et al. in Atmospheric Chemistry and Physics.

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

DATeS: a highly extensible data assimilation testing suite v1.0. By A. Attia and A. Sandu in Geoscientific Model Development.

The Upper Stratospheric Solar Cycle Ozone Response. By W.T. Ball et al. in the Geophysical Research Letters.

Atmospheric circulation modulates the spatial variability of temperature in the Atlantic‐Arctic region. By O. Champagne et al. in the International Journal of Climatology.

S2S reboot: An argument for greater inclusion of machine learning in subseasonal to seasonal forecasts. By J. Cohen et al. in WIREs Climate Change.

Seasonal and diurnal variability in O3, black carbon, and CO measured at the Rwanda Climate Observatory. By H. Langley DeWitt et al. in Atmospheric Chemistry and Physics.

A thermodynamic climatology of the disturbed stratospheric polar vortex. By T.S. Ehrmann and S.J. Colucci in the International Journal of Climatology.

Embracing the complexity of extreme weather events when quantifying their likelihood of recurrence in a warming world. By L.J. Harrington et al. in the Environmental Research Letters.

11 Years of Rayleigh Lidar Observations of Gravity Wave Activity Above the Southern Tip of South America. By P. Llamedo et al. in the Journal of Geophysical Research: Atmospheres.

Improved decadal prediction of Northern-Hemisphere summer land temperature. By B. Wu et al. in Climate Dynamics.

Change Point Analysis of Global Temperature Records. By M. Yu and E. Ruggieri in the International Journal of Climatology.

Relationship between Asian monsoon strength and transport of surface aerosols to the Asian Tropopause Aerosol Layer (ATAL): interannual variability and decadal changes. By C. Yuan et al. in Atmospheric Chemistry and Physics.

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

Warming Trends in Summer HeatWaves. By S.C. Chapman, N.W. Watkins, and D.A. Stainforth in the Geophysical Research Letters.

El Niño–Southern Oscillation variability, teleconnection changes and responses to large volcanic eruptions since AD 1000. By C. Dätwyler et al. in the International Journal of Climatology.

Nonlinearity in the North Pacific atmospheric response to a linear ENSO forcing. By B. Jiménez‐Esteve and D. I.V. Domeisen I the Geophysical Research Letters.

Characterization of inertia gravity waves and associated dynamics in the lower stratosphere over the Indian Antarctic station, Bharati (69.4°S, 76.2°E) during austral summers. By N. Koushik et al. in Climate Dynamics.

Updates of HITRAN spectroscopic database from 2008 to 2016 and implications for near‐infrared radiative transfer calculations. By K.P. Menang in the Quarterly Journal of the Royal Meteorological Society.

Retrieving the age of air spectrum from tracers: principle and method. By A. Podglajen and F. Ploeger in Atmospheric Chemistry and Physics.

Indian summer monsoon onset signatures on the tropical tropopause layer. By S. RavindraBabu et al. in the Atmospheric Science Letters.

The St.Petersburg State University will hold the International Symposium on Atmospheric Radiation and Dynamics (ISARD-2019) in St.-Petersburg-Peterhof, June 25-27, 2019.

Find workshop webpage

Working languages of the Symposium are English and Russian.

Important dates:

Deadline for abstract submission: April 25, 2019
Deadline for payment of early bird registration fee: May 15, 2019

Contacts: Evgenia Shulgina

Chairman of the ISARD-2019 Program Committee: Prof. Yury Timofeyev Chairman of the Russian Radiation Commission

Sections available:

1. Satellite sounding of atmosphere and surface.

2. Remote sensing of atmosphere and underlying surface in different spectral ranges.

3. Radiative transfer theory.

4. Radiation-cloud and radiation-aerosol interactions.

5. Radiative climatology and algorithms in models for weather and climate forecasting.

6. Field studies of radiative characteristics of atmosphere and surface.

7. Wave characteristics, macrocirculation and dynamics interactions in atmospheres of the Earth and other planets.

8. Structure of middle and upper atmosphere of the Earth and other planets.

9. Photochemistry and kinetics of excited states of atoms and molecules and non-LTE radiation in the atmosphere of the Earth and other planets.

10. Radiation and dynamics of polar atmosphere.