The AGU Chapman Conference on Stratospheric Aerosol in the Post-PInatubo Era: Processes, Interactions, and Importance will take place on 18-23 March 2018 in Puerto de la Cruz, Tenerife, Canary Islands, Spain.
Abstract submission is closing on 8 November 2017.
Find more information.
The Canadian Journal Atmosphere-Ocean is calling for submissions for a Special Issue dedicated to the International Project “The Year of Tropics-Midlatitude Interactions and Teleconnections”.
The Special Issue is a collection of manuscripts documenting observational and modeling studies focused on understanding the physical mechanisms underlying the two-way interactions between tropics and mildlatitudes on the subseasonal-to-seasonal (S2S) time scales; prediction and predictability studies using the S2S database, and the role of intra-seasonal teleconnections in the occurrence and frequency of high-impact weather events.
Manuscript submissions are being accepted through May 2018. For submission instructions, please visit http://cmos.ca/site/ao. The special issue can be selected from the drop-down list of the submission process. If you plan to submit a manuscript, please send a tentative title to Cristiana Stan, cstan@gmu.edu, by 31 January 2018.
As part of the development of the World Climate Research Programme (WCRP) Strategic Plan, the WCRP Joint Scientific Committee (JSC) invites you to participate in a "Survey to guide the development of the WCRP Strategic Plan 2019-2029" which includes a SWOT analysis of WCRP and short questions on core business, main new research emphases and emerging topics to be addressed in the next 10 years.
The survey is very short, but if you want to consider your responses before submitting them, a full transcript of the questions is also given below.
The JSC will take your comments into consideration when they draft the new WCRP Strategic Plan. This survey is part of a series of consultation phases planned over the coming months seeking inputs from WCRP stakeholders. While this survey is principally for the immediate WCRP community, consultations with a broader group of stakeholders (e.g. WCRP sponsors, WCRP entities, partners programmes, agencies, early career scientists networks, community at large, etc.) are also planned once the JSC has produced a first draft of the strategic plan.
Thank you for your time and input into this important document.
The survey was prepared by the WCRP Secretariat on behalf of
Guy Brasseur (JSC Chair) and the WCRP Joint Scientific Committee
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Full transcript of questions: Survey to guide the development of the WCRP Strategic Plan 2019-2029
1. SWOT analysis: SWOT (Strengths, Weaknesses, Opportunities, Threats) analysis is used to identify an organization’s internal strengths and weaknesses, as well as its external opportunities and threats (see image below). We invite you to comment on each of these areas in the form below, including any suggested actions for improvement.
- Strengths
- Weaknesses
- Opportunities
- Threats
2. Core Business: The survey will also help Identifying and possibly reviewing the core business of the programme in this context. We invite you to comment on the current fundamental work of WCRP, its alignment with and relevance to our mission (see https://www.wcrp-climate.org/about-wcrp/wcrp-overview) and any need for adjustment. What is and should be the core business of WCRP?
3. High Level Science Questions: The current overarching objectives of the programme are (see https://www.wcrp-climate.org/about-wcrp/wcrp-overview):
to determine the predictability of climate; and
to determine the effect of human activities on climate
The evolving climate policy and climate service landscape suggests a new emphasis under those objectives for the next 10 years. We invite you to provide suggestions for two specific "High level" research questions the programme should focus on, in light of those overarching objectives and recent science accomplishments. What would you propose as the two main High Level science questions to be addressed for the next 10 years?
4. Emerging topics: The survey welcomes suggestions for any ’emerging/hot topics’ which you feel should be addressed because of their importance, relevance, ambition and urgency. This box can also be used for any free comments. Are there any ’emerging science topics’ which you feel should be addressed because of their importance, relevance, ambition and urgency?
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
More-Persistent Weak Stratospheric Polar Vortex States Linked to Cold Extremes. By M. Kretschmer et al. in the Bulletin of the American Meteorological Society.
Modeling Seasonal Sudden Stratospheric Warming Climatology Based on Polar Vortex Statistics. By M.F. Horan and T. Reichler in the Journal of Climate.
Seasonal sensitivity of the Northern Hemisphere jet-streams to Arctic temperatures on subseasonal timescales. By E.A. Barnes and I.R. Simpson in the Journal of Climate.
Development of a Polar Stratospheric Cloud Model within the Community Earth System Model: Assessment of 2010 Antarctic Winter. By Y. Zhu et al. in the Journal of Geophysical Research: Atmospheres.
Brominated VSLS and their influence on ozone under a changing climate. By S. Falk et al. in Atmospheric Chemistry and Physics.
Ozone comparison between Pandora #34, Dobson #061, OMI, and OMPS in Boulder, Colorado, for the period December 2013–December 2016. By J. Herman et al. in Atmospheric Measurement Techniques.
An “island” in the stratosphere – on the enhanced annual variation of water vapour in the middle and upper stratosphere in the southern tropics and subtropics. By S. Lossow et al. in Atmospheric Chemistry and Physics.
Reanalysis comparisons of upper tropospheric–lower stratospheric jets and multiple tropopauses. By G.L. Manney et al. in Atmospheric Chemistry and Physics.
Snow-(N)AO teleconnection and its modulation by the Quasi-Biennal Oscillation. By Y. Peings et al. in the Journal of Climate.
Common Warming Pattern Emerges Irrespective of Forcing Location. By S.M. Kang et al. in the Journal of Advances in Modeling Earth Systems.
Potential impact of carbonaceous aerosol on the upper troposphere and lower stratosphere (UTLS) and precipitation during Asian summer monsoon in a global model simulation. By S. Fadnavis et al. in Atmospheric Chemistry and Physics.
Discussion papers – open for comment
Harmonisation and trends of 20-years tropical tropospheric ozone data. By E. Leventidou et al. in Atmospheric Chemistry and Physics Discussions.
Signatures by 3 October
There is a petition in circulation that is in the form of an open letter to Prime Minister Trudeau, regarding the non-renewal of the CCAR program in Canada.
Please follow the link below to review this petition:
https://docs.google.com/forms/<wbr></wbr>d/e/<wbr></wbr>1FAIpQLScX3iILUvOQc3MYnChYRYrv<wbr></wbr>UGDvJBAwHyDJi0W4LrHXr3CTTw/<wbr></wbr>viewform
The Intergovernmental Panel on Climate Change (IPCC), the UN body for assessing the science related to climate change, is calling for nominations of authors for the Sixth Assessment Report (AR6).
"We are seeking scientists with expertise across the disciplines assessed by the IPCC," said Hoesung Lee, Chair of the IPCC. "We also hope that more scientists from developing countries and more women scientists will be nominated as IPCC authors to give us diverse author teams that can provide a range of relevant perspectives."
The report outline consists of chapters with indicative bullets, listing topics to be considered in the assessment. Expertise is sought in the call for nominations to undertake the assessment of these topics.
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
Disentangling fast and slow responses of the East Asian summer monsoon to reflecting and absorbing aerosol forcings. By Z. Wang et al. in Atmospheric Chemistry and Physics.
Comparison of large-scale dynamical variability in the extratropical stratosphere among the JRA-55 family data sets: impacts of assimilation of observational data in JRA-55 reanalysis data. By M. Taguchi in Atmospheric Chemistry and Physics.
Shift of subtropical transport barriers explains observed hemispheric asymmetry of decadal trends of age of air. By G.P. Stiller in Atmospheric Chemistry and Physics.
An assessment of drift correction alternatives for CMIP5 decadal predictions. By D. Choudhury et al. in the Journal of Geophysical Research: Atmospheres.
Discussion papers – open for comment
Representation of solar tides in the stratosphere and lower mesosphere in state-of-the-art reanalyses and in satellite observations. By T. Sakazaki et al. in Atmospheric Chemistry and Physics Discussions.
Revising global ozone dry deposition estimates based on a new mechanistic parameterisation for air-sea exchange and the multi-year MACC composition reanalysis. By A.K. Luhar et al. in Atmospheric Chemistry and Physics Discussions.
Tropical convection regimes in climate models: evaluation with satellite observations. By A.K. Steiner et al. in Atmospheric Chemistry and Physics Discussions.
On 19-20 September 2017, a symposium took place in Paris, France, on the occasion of the 30th Anniversary of the Montreal Protocol: From the safeguard of the ozone layer to the protection of the Earth Climate. The event was organised by the International Ozone Commission and endorsed by SPARC.
Hailed as an example of exceptional international cooperation for the protection of the ozone layer, the Montreal Protocol became in 2010 the first international treaty to achieve universal ratification. In October 2016, the Kigali amendment was added to the Protocol for controlling the growth of the substitutes of ozone depleting substances, some of which are powerful greenhouse gases and thereby mitigating their impact on the Earth’s climate.
Find the programme and watch the videos of the symposium.
Registration is now open for the 42nd COSPAR Scientific Assembly, taking place at the Pasadena Convention Center from 14-22 July 2018.
Early registration deadline: 27 April 2018
Abstract submission deadline: 9 February 2018
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
Detecting recovery of the stratospheric ozone layer. By M.P. Chipperfield et al. in Nature.
Comparison of four inverse modelling systems applied to the estimation of HFC-125, HFC-134a, and SF6 emissions over Europe. By D. Brunner et al. in Atmospheric Chemistry and Physics.
The Impacts of Meteorology on the Seasonal and Interannual Variabilities of Ozone Transport from North America to East Asia. By Y. Zhu et al. in the Journal of Geophysical Research: Atmospheres.
Troposphere-stratosphere temperature trends derived from satellite data compared with ensemble simulations from WACCM. By W.J. Randel et al. in the Journal of Geophysical Research: Atmospheres.
Evaluating a space-based indicator of surface ozone-NOx-VOC sensitivity over mid-latitude source regions and application to decadal trends. By X. Jin et al. in the Journal of Geophysical Research: Atmospheres.
A quantitative analysis of the reactions involved in stratospheric ozone depletion in the polar vortex core. By I. Wohltmann et al. in Atmospheric Chemistry and Physics.
Particulate sulfur in the upper troposphere and lowermost stratosphere – sources and climate forcing. By B.G. Martinsson et al. in Atmospheric Chemistry and Physics.
Tropospheric ozone profiles by DIAL at Maïdo Observatory (Reunion Island): system description, instrumental performance and result comparison with ozone external data set. By Y. Duflot et al. in Atmospheric Measurement Techniques.
MJO-related tropical convection anomalies lead to more accurate stratospheric vortex variability in subseasonal forecast models. By C.I. Garfinkel and C. Schwartz in Geophysical Research Letters.
Regional temperature change potentials for short-lived climate forcers based on radiative forcing from multiple models. By B. Aamaas et al. in Atmospheric Chemistry and Physics.
Local and remote impacts of atmospheric cloud radiative effects onto the eddy-driven jet. By O. Watt-Meyer and D.M.W. Frierson in Geophysical Research Letters.
Uncovering the Edge of the Polar Vortex. By M. Serra et al. in the Journal of the Atmospheric Sciences.
Practical and intrinsic predictability of multi-scale weather and convectively-coupled equatorial waves during the active phase of an MJO. By Y. Ying and F. Zhang in the Journal of the Atmospheric Sciences.
An update on ozone profile trends for the period 2000 to 2016. By W. Steinbrecht et al. in Atmospheric Chemistry and Physics.
Review of Tropical-Extratropical Teleconnections on Intraseasonal Time Scales. By C. Stan in Reviews of Geophysics.
Driving Roles of Tropospheric and Stratospheric Thermal Anomalies in Intensification and Persistence of the Arctic Superstorm in 2012. By W. Tao et al. in Geophysical Research Letters.
A New Interpretation of Vortex-Split Sudden Stratospheric Warmings in Terms of Equilibrium Statistical Mechanics. By Y. Yasuda et al. in the Journal of the Atmospheric Sciences.
Discussion papers – open for comment
A global, space-based stratospheric aerosol climatology: 1979 to 2016. By L.W. Thomason et al. in Earth System Science Data Discussions.
Climatology and long-term evolution of ozone and carbon monoxide in the UTLS at northern mid-latitudes, as seen by IAGOS from 1995 to 2013. By Y. Cohen et al. in Atmospheric Chemistry and Physics Discussions.
Revisiting internal gravity waves analysis using GPS RO density profiles: comparison with temperature profiles and application for wave field stability study. By P. Pisoft et al. in Atmospheric Measurement Techniques Discussions.
Evaluation of stratospheric age-of-air from CF4, C2F6, C3F8, CHF3, HFC-125, HFC-227ea and SF6; implications for the calculations of halocarbon lifetimes, fractional release factors and ozone depletion potentials. By E. Leedham Elvidge et al. in Atmospheric Chemistry and Physics Discussions.
Simultaneous assimilation of ozone profiles from multiple UV-VIS satellite instruments. By J. van Peet et al. in Atmospheric Chemistry and Physics Discussions.
Total ozone trends from 1979 to 2016 derived from five merged observational datasets – the emergence into ozone recovery. By M. Weber et al. in Atmospheric Chemistry and Physics Discussions.