The Climate and Cryosphere (CliC) is one of the core projects of the World Climate Research Programme (WCRP), serving as the focal point for climate science related to the cryosphere, its variability and change, and interaction with the broader climate system.
CliC is now launching an open call for nominations for chairmanship. Self-nominations are encouraged. Please fill in the attached form and send to not later than April 16th.
Abstract submission is now open for the 16th IGAC Conference, to be held virtually starting September 12th, 2021. The theme of this conference is Atmospheric Chemistry from a Distance: Real Progress through Virtual Interaction
For the 2021 virtual conference, IGAC’s scientific program will center its scientific program around its current working groups and activities. This will highlight the exciting work being done as part of IGAC, grow the networks of these working groups and activities, and expose new scientists to the year-round work IGAC does. IGAC will also have an open science session for atmospheric chemistry research that does not fit into any current working groups or activities. We hope this will expose any gaps in IGAC’s current activities and serve as a poll for the atmospheric community on the next big questions in atmospheric chemistry.
Abstracts are open for submission here and are due May 1st, 2021. You may modify abstracts submitted for the delayed Manchester 2020 IGAC conference or delete and submit a new abstract.
The conference will take place the week of September 12, 2021. An Early Career Research Programme will take place the week before the main conference. A link to register your interest in this program is at the bottom of the abstract submission link. To register for the conference without submitting an abstract, click here.
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
Influence of the El Niño–Southern Oscillation on entry stratospheric water vapor in coupled chemistry–ocean CCMI and CMIP6 models. By C.I. Garfinkel et al. in Atmospheric Chemistry and Physics.
The politics and governance of research into solar geoengineering. By D. McLaren and O. Corry in WIREs Climate Change.
How Atmospheric Chemistry and Transport Drive Surface Variability of N2O and CFC‐11. By D.J. Ruiz et al. in the Journal of Geophysical Research: Atmospheres.
Potential of Mid‐tropospheric Water Vapor Isotopes to Improve Large‐Scale Circulation and Weather Predictability. By K. Toride et al. in the Geophysical Research Letters.
The unusual stratospheric Arctic winter 2019/20: Chemical ozone loss from satellite observations and TOMCAT chemical transport model. By M. Weber et al. in the Journal of Geophysical Research: Atmospheres.
US CLIVAR seeks comments and input from the science community on the draft white paper “Summarizing Weather, Climate, and Earth System Observational Data Sharing Needs for Research and Education.”
The document is intended to (1) raise community awareness of US federal agency decisions to restrict access and sharing of observational data sets through recently established commercial data buys and (2) articulate data needs and benefits of federal commitments to free, open, and unrestricted observational data access and exchange for scientific research and education.
Developed by a writing team charged by the US CLIVAR Scientific Steering Committee, the draft white paper incorporates inputs received through consultation with members of the US CLIVAR organization as well as feedback from members of the scientific community collected through two Town Halls. Suggestions from this open review period will be considered in preparing the final publication.
Download the draft white paper and enter your comments here (Google d oc). The document is intentionally concise, so it is a quick read at just eight pages in length. Please provide comments and suggest text changes on the current draft by Monday, March 15, 2021.
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
Model physics and chemistry causing intermodel disagreement within the VolMIP-Tambora Interactive Stratospheric Aerosol ensemble. By M. Clyne et al. in Atmospheric Chemistry and Physics.
Quantifying the influence of short-term emission reductions on climate. By J.C. Fyfe et al. in Science Advances.
Sensitivity of QBO teleconnection to model circulation biases. By A.Y. Karpechko, N.L. Tyrell, and S. Rast in the Quarterly Journal of the Royal Meteorological Society.
Discussion papers – open for comment:
Contributions of equatorial planetary waves and small-scale convective gravity waves to the 2019/20 QBO disruption. By M.-J. Kang and H.-Y. Chun in Atmospheric Chemistry and Physics.
Virtual Meeting June 7-10, 2021
In coordination with the NASA Living With a Star Program, the 2nd Eddy Cross Disciplinary Symposium will be held virtually June 7-10, 2021. The goal of this meeting is to bring together diverse groups from data science, Earth and space sciences.
The aim is to identify and promote novel opportunities for budding scientists, to take advantage of powerful new techniques from computational and data science, including machine learning and Al techniques.
Join a community of scientific facilitators for an uncommon opportunity to advance cross-disciplinary conversations and research into the areas of Sun-Earth relations, weather-climate connections, and novel star-planet interactions.
A current list of speakers includes:
For workshop information and to register (no registration fee this year), please visit https://cpaess.ucar.edu/meetings/2nd-eddy-cross-disciplinary-symposium.
The program, speakers, poster presentations, and other relevant information will be provided on the meeting registration site and in future announcements.
The Eddy Cross Disciplinarian Symposium is coordinated by the University Corporation for Atmospheric Research and the NASA Living With a Star Program.
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
Global modeling studies of composition and decadal trends of the Asian Tropopause Aerosol Layer. By A. Bossolasco et al. in Atmospheric Chemistry and Physics.
The spring transition of the North Pacific jet and its relation to deep stratosphere-to-troposphere mass transport over western North America. By M.L. Breeden et al. in Atmospheric Chemistry and Physics.
Summer Monsoons: Regional Manifestations of a Global System. By R. Green, S. Bordoni, and D. Battisti in Earth and Space Science News; Editor’s Vox.
Discussion papers – open for comment:
Arctic on the verge of an ozone hole? By J. Kuttippurath et al. in Atmospheric Chemistry and Physics.
Ozone super recovery cancelled in the Antarctic upper stratosphere. By V. Maliniemi et al. in Atmospheric Chemistry and Physics.
Calibrating a global atmospheric chemistry transport model using Gaussian process emulation and ground-level concentrations of ozone and carbon monoxide. By E. Ryan and O. Wild in Geoscientific Model Development.
| Dates: Topic: | 14–18 June 2021 (online) Challenges around atmospheric water vapour |
The Water Vapour Climate Change Initiative (WV_cci) is a project of the European Space Agency (ESA) with the overall goal to generate climate data records (CDRs) of atmospheric water vapour for use in climate applications. The project develops, validates, and releases quality-controlled, long-term CDRs of total column water vapour (TCWV) and water vapour profiles in the stratosphere (2D), as well as a five-year data record of water vapour profiles in the troposphere and lower stratosphere (3D).
The aim of the workshop is to bring together the broader water vapour community, including those interested in the generation of water vapour CDRs and data users (such as climate modellers and NWP researchers) in order to discuss the most recent scientific applications and challenges in processing and using water vapour CDRs. Topics of the workshop include:
• Discuss challenges related to the generation of water vapour CDRs.
• Show-case climate user applications of water vapour CDRs (with focus on WV_cci CDRs).
• Collect and update user requirements for atmospheric water vapour.
• Present and discuss results from climate analysis, climate applications, and process studies using water vapour CDRs.
The workshop will be carried out online and will consist of a series of presentations and discussion blocks. It is foreseen to have the workshop in the week 14–18 June 2021, at 14– 18 CEST. The exact number of days will depend on the number of submitted abstracts.
| Abstract submission: Registration: | 15 April 2021 (tbc) 01 May 2021 (tbc) |
A selection of new science articles from the past week of interest to the SPARC community (a SPARC Office choice).
The Influence of Obliquely Propagating Monsoon Gravity Waves in the Southern Polar Summer Mesosphere after Stratospheric Sudden Warmings in the Winter Stratosphere. By D. Alexandre et al. in the Journal of Geophysical Research: Atmospheres.
Variation in the Holton–Tan effect by longitude. By D. Elsbury, Y. Peings, and G. Magnusdottir in the Quarterly Journal of the Royal Meteorological Society.
Improved Circulation in the Northern Hemisphere by Adjusting Gravity Wave Drag Parameterisations in Seasonal Experiments with ICON‐NWP. By R. Köhler et al. in Earth and Space Science.
Potential of future stratospheric ozone loss in the midlatitudes under global warming and sulfate geoengineering. By S. Robrecht et al. in Atmospheric Chemistry and Physics.
Aerosols in current and future Arctic climate. By J. Schmale, P. Zieger, and A.M.L. Ekman in nature: climate Change.
Sensitivity of stratospheric water vapour to variability in tropical tropopause temperatures and large-scale transport. By J.W. Smith et al. in Atmospheric Chemistry and Physics.
Quasi-coincident observations of polar stratospheric clouds by ground-based lidar and CALIOP at Concordia (Dome C, Antarctica) from 2014 to 2018. By M. Snels 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).
Observational validation of parameterized gravity waves from tropical convection in the Whole Atmosphere Community Climate Model (WACCM). By M.J. Alexander et al. in the Journal of Geophysical Research: Atmospheres.
Evaluation of polar stratospheric clouds in the global chemistry–climate model SOCOLv3.1 by comparison with CALIPSO spaceborne lidar measurements. By M. Steiner et al. in Geoscientific Model Development.
Is Turning Down the Sun a Good Proxy for Stratospheric Sulfate Geoengineering? By D. Visioni, D.G. MacMartin, and B. Kravitz in the Journal of Geophysical Research: Atmospheres.
Discussion papers – open for comment:
Why we need radar, lidar, and solar radiance observations to constrain ice cloud microphysics. By F. Ewald et al. in Atmospheric Measurement Techniques.