26-31 July 2015, Santa Fe, New Mexico, USA

This multidisciplinary conference will explore the state of the science and identify future research directions relevant to the issue of tropical belt widening.

A particular emphasis will be cross-fertilization among the wide range of climate scientists contributing to our understanding of the problem.

Four main themes are planned:
1. What determines the width of the tropical belt?
2. How and why has the tropical width changed in the past?
3. How and why might the tropical width change in the future?
4. What are the impacts for the oceans, cryosphere, hydrologic cycle, human society, and ecosystems?

Conference details are at chapman.agu.org/tropics/

Deadline for abstracts: 12 Dec 2014

16-18 March 2015, Victoria BC, Canada

The objective of the QBO Modelling and Reanalyses Workshop is to better understand the QBO in observations and reanalyses and to improve the fidelity of tropical stratosphere variability in present-day GCMs. The Workshop will (1) evaluate present-day QBO variability in observations and models, and (2) design joint numerical experiments following an active discussion of modelling groups.

The meeting will be tightly focussed, with invited and contributed science presentations and planned experiment discussions. Please register your interest for the Workshop online by following the link below, although numbers are limited. There is no Workshop fee.

The Workshop is an outflow of the QBOi activity and the QBO and Tropical Variability chapter of the SPARC S-RIP Report. The Workshop is kindly sponsored by the UK National Environmental Research Council and SPARC.

To find out more, please visit the Workshop homepage.

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

Thunderstorms enhance tropospheric ozone by wrapping and shedding stratospheric air. By L.L. Pan et al. in Geophysical Research Letters.

Total volcanic stratospheric aerosol optical depths and implications for global climate change. By D.A. Ridley et al. in Geophysical Research Letters.

Airborne verification of CALIPSO products over the Amazon: a case study of daytime observations in a complex atmospheric scene. By F. Marenco et al. in Atmospheric Chemistry and Physics.

Biogenic SOA formation through gas-phase oxidation and gas-to-particle partitioning – a comparison between process models of varying complexity. By E. Hermansson et al. in Atmospheric Chemistry and Physics.

Application of GPS radio occultation to the assessment of temperature profile retrievals from microwave and infrared sounders. By M. Feltz et al. in Atmospheric Measurement Techniques.

Recalibration and Merging of SSU Observations for Stratospheric Temperature Trend Studies. By C.-Z. Zou et al. in the Journal of Geophysical Research: Atmospheres.

Improving stratospheric transport trend analysis based on SF₆ and CO₂ measurements. By. E.A. Ray et al. in the Journal of Geophysical Research: Atmospheres.

Variability of Antarctic ozone loss in the last decade (2004–2013): high resolution simulations compared to Aura MLS observations. By J. Kuttippurath et al. in Atmospheric Chemistry and Physics Discussions.

Satellite observations of stratospheric carbonyl fluoride. By J.J. Harrison et al. in Atmospheric Chemistry and Physics.

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

Total volcanic stratospheric aerosol optical depths and implications for global climate change. By D.A. Ridley et al. in Geophysical Research Letters.

Denitrification by large NAT particles: the impact of reduced settling velocities and hints on particle characteristics. By W. Woiwode et al. in Atmospheric Chemistry and Physics.

Variations of stratospheric water vapor over the past three decades. By A.E. Dessler et al. in the Journal of Geophysical Research: Atmospheres.

Recent Northern Hemisphere stratospheric HCl increase due to atmospheric circulation changes. By E. Mahieu et al. in Nature.

Lidar-observed enhancement of aerosols in the upper troposphere and lower stratosphere over the Tibetan Plateau induced by the Nabro volcano eruption. By Q.S. He et al. in Atmospheric Chemistry and Physics.

MIPAS temperature from the stratosphere to the lower thermosphere: Comparison of vM21 with ACE-FTS, MLS, OSIRIS, SABER, SOFIE and lidar measurements. By M. García-Comas et al. in Atmospheric Measurement Techniques.

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

An Objective Analysis of the QBO in ERA-Interim and the Community Atmosphere Model, Version 5. By A. Solomon et al. in Geophysical Research Letters.

The relevance of the location of blocking highs for stratospheric variability in a changing climate. By B. Ayarzagüena et al. in the Journal of Climate.

Can inertia-gravity waves persistently alter the tropopause inversion layer? By D. Kunkel et al. in Geophysical Research letters.

Signatures of Naturally Induced Variability in the Atmosphere using Multiple Reanalysis Datasets. By D.M. Mitchell et al. in the Quarterly Journal of the Royal Meteorological Society.

"COSPAR 2015"

Title:
2^nd Symposium of the Committee on Space Research (COSPAR):
Water and Life in the Universe
“COSPAR 2015”

Date:
9 – 13 November 2015

Place:
Foz do Iguacu, Brazil

Contact:
COSPAR Secretariat, 2 place Maurice Quentin, 75039 Paris Cedex 01, France
Tel: +33 1 44 76 75 10
Fax: +33 1 44 76 74 37

http://cosparbrazil2015.org/

Scientific Program Chair:
Dr. Othon Winter, UNESP – São Paulo State University

Abstract Deadline:
31 May 2015

Topics:

• Space astronomy missions to detect ingredients for life and exoplanets in the universe: status of current and future approved missions and new proposals
• Water and life in the universe and on Earth: impact on human consciousness and societies- Satellite and probe missions for water remote sensing on Earth, planets, and other celestial bodies
• Water and Life in the Solar System- Water from chemical, biological, and physical perspectives
• Role of water from the ground to the upper atmosphere
• Astrobiology: habitability, synthesis of organics in ice, and prebiotic chemistry in liquid water
• Water, organics and life support for human exploration in low Earth orbit, the Moon and beyond
• Interdisciplinary lectures, keynote talks, public lectures

Selected papers published in Advances in Space Research and Life Sciences in Space Research, fully refereed journals with no deadlines open to all submissions in relevant fields.

Instrument concept of the imaging Fourier transform spectrometer GLORIA. By F. Friedl-Vallon et al. in Atmospheric Measurement Techniques.

Radiosonde observations of gravity waves in the lower stratosphere over Davis, Antarctica. By D.J. Murphy et al. in the Journal of Geophysical Research: Atmospheres.

The AeroCom evaluation and intercomparison of organic aerosol in global models. By K. Tsigaridis et al. in Atmospheric Chemistry and Physics.

The Structure and Dynamics of the Stratospheric Northern Annular Mode in CMIP5 Simulations. By Y.-Y. Lee and R.X. Black in the Journal of Climate.

The Life Cycle of a Sudden Stratospheric Warming from Infrasonic Ambient Noise Observations. By P.S.M. Smets and L.G. Evans in the Journal of Geophysical Research: Atmospheres.

Comparison of Fast In situ Stratospheric Hygrometer (FISH) measurements of water vapor in the upper troposphere and lower stratosphere (UTLS) with ECMWF (re)analysis data. By A. Kunz et al. in Atmospheric Chemistry and Physics.

Microphysical properties of synoptic-scale polar stratospheric clouds: in situ measurements of unexpectedly large HNO₃-containing particles in the Arctic vortex. By S. Molleker et al. in Atmospheric Chemistry and Physics.

Vertical distribution of gravity wave potential energy from long-term Rayleigh lidar data at a northern middle latitude site. By N. Mzé et al. in the Journal of Geophysical Research: Atmospheres.

Northern Hemisphere mid-winter vortex-displacement and vortex-split stratospheric sudden warmings: Influence of the Madden-Julian Oscillation and Quasi-Biennial Oscillation. By C. Liu et al. in the Journal of Geophysical Research: Atmospheres.

Intercomparison of vertically resolved merged satellite ozone data sets: interannual variability and long-term trends. By F. Tummon et al. in Atmospheric Chemistry and Physics Discussions.

The roles of deep convection and extratropical mixing in the Tropical Tropopause Layer: An in situ measurement perspective. By M.R. Sargent et al. in the Journal of Geophysical Research: Atmospheres.

Intermittency in a stochastic parameterization of nonorographic gravity waves. By A de la Cámara et al. in the Journal of Geophysical Research: Atmospheres.

The Effects of Different Sudden Stratospheric Warming Type on the Ocean. By A. O’Callaghan et al. in Geophysical Research Letters.

Biases in Southern Hemisphere climate trends induced by coarsely specifying the temporal resolution of stratospheric ozone. By R.R. Neely et al. in Geophysical Research Letters.

Aerosol microphysics simulations of the Mt. Pinatubo eruption with the UM-UKCA composition-climate model. By S.S. Dhomse et al. in Atmospheric Chemistry and Physics.

Deadline for abstracts: 10 Nov 2014

Status and Relevance for Numerical Weather Prediction, Air Quality and Climate Research

23-25 February 2015, WMO Headquarters, Geneva, Switzerland

Further Details

Registration and abstract submission: http://eumetchem.info/

Call for parallel sessions – deadline 15 Nov 2014

The Organizing Committee is pleased to announce that the Call for Parallel Sessions for the Conference "Our Common Future under Climate Change" to be held in July 2015 at UNESCO, Paris (France) is now open.

The timeline is as follows:

– 6 October 2014: Opening of the Call for Parallel Sessions

– 15 November 2014: Deadline for the Call for Parallel Sessions

– Early/mid-December 2014: Notification to the selected Parallel Sessions Conveners

Proponents are encouraged to submit their proposals as soon as possible via the online submission form.

Find more information is on the conference website

Characteristics of gravity waves resolved by ECMWF. By P. Presusse et al. in Atmospheric Chemistry and Physics.

Seasonal to decadal prediction of the winter North Atlantic Oscillation: emerging capability and future prospects. By D.M. Smith et al. in the Quaterly Journal of the Royal Meteorological Society.

Construction of merged satellite total O₃ and NO₂ time series in the tropics for trend studies and evaluation by comparison to NDACC SAOZ measurements. By M. Pastel et al. in Atmospheric Measurement Techniques.