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--- aerocom:aerchemmip:start [2014-12-08 08:54:00]
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+++ aerocom:aerchemmip:start [2022-05-31 09:29:31] (current)
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-==== AerChemMIP ====
+[[aerocom:aerchemmip:|{{:aerocom/aerchemmip.png?w=160&h=80}}]]
-=== Goal ===
+====== AerChemMIP ======
-Past climate change has been forced by a wide range of chemically reactive gases, aerosols, and well mixed greenhouse gases (WMGHGs), in addition to CO2. Scientific questions and uncertainties regarding chemistry-climate interactions range from regional scales (e.g., tropospheric ozone and aerosols interacting with regional meteorology), to long-range connections (e.g., hemispheric transport of air pollution, the impacts of lower stratospheric ozone and temperatures on surface climate), to global integration (e.g., the lifetimes of CH4 and N2O).
+Scientific Steering Group: Bill Collins, Michael Schulz, Jean-François Lamarque, Vaishali Naik, Olivier Boucher, Michaela I. Hegglin, Amanda Maycock, Gunnar Myhre, Michael Prather, Drew Shindell, and Steven J. Smith
-AerChemMIP proposes to contribute to CMIP6 through the following: 1) diagnose forcings and feedbacks involving NTCFs, (namely tropospheric aerosols, tropospheric O3 precursors, and CH4) and the chemically reactive WMGHGs (e.g., N2O, also CH4, and some halocarbons** including impacts on stratospheric O3), 2) document and understand past and future changes in the chemical composition of the atmosphere, and 3) estimate the global-to-regional climate response from these changes.
-The AerChemMIP Tier 1 simulations focus primarily on understanding atmospheric composition changes (from NTCFs and other chemically-active anthropogenic gases) and their impact on climate. We have devised a series of experiments that contrast the forcing of various NTCFs with that of WMGHGs in historical and future climate change.  In addition, the proposed chemistry-climate simulations will enable diagnosis of changes in regional air quality (AQ) through its coupling to large-scale changes in O3-CH4-PM2.5.  We will work in collaboration with RFMIP and DAMIP to provide a comprehensive analysis of ERF and the regionally-resolved climate forcing signature from tropospheric NTCFs.  For some of the specifically attributable climate forcings, in particular those at the 10s of mW m-2 level, the actual climate change will be difficult to detect in a transient simulation or even a time slice of several decades. AerChemMIP is a joint, consolidated effort for CMIP6 from two international communities -- Aerosol Comparisons between Observations and Models (AeroCom, http://aerocom.met.no/Welcome.html) and the IGAC/SPARC Chemistry-Climate Model Initiative (CCMI, http://www.met.reading.ac.uk/ccmi/). Experiments suggested for CCMI Phase 2 [Eyring et al., 2013b], which are traditionally run using chemistry-climate models (CCMs) with mostly prescribed sea surface temperatures and sea ice concentrations, complement this set of AerChemMIP/CMIP6 experiments. Further experiments in AeroCom phase III aim to understand sensitivity of aerosol forcing to aerosol formation and loss processes.
+The Aerosol Chemistry Model Intercomparison Project (AerChemMIP) is endorsed by the Coupled-Model Intercomparison Project 6 (CMIP6) and is designed to quantify the climate and air quality impacts of aerosols and chemically-reactive gases. These are specifically short-lived climate forcers (SLCFs: methane, tropospheric ozone and aerosols, and their precursors), nitrous oxide and ozone-depleting halocarbons. AerChemMIP analyses will inform the Sixth Assessment report of the IPCC ([[https://wg1.ipcc.ch/AR6/AR6.html|IPCC-AR6]]). The aim of AerChemMIP is to answer four scientific questions:
-**We do not specifically consider the very long-lived F-gases (SF6, PFCs, and some HFCs) as their abundance is not affected by chemistry on a century time scale.**
+.	How have anthropogenic emissions contributed to global radiative forcing and affected regional climate over the historical period?
-=== Experiments Tier 1 ===
+.	How might future policies (on climate, air quality and land use) affect the abundances of SLCFs and their climate impacts?
-=== All Experiments ===
+.	How can uncertainties in historical SLCF emissions be mapped onto pre-industrial to present-day changes?
-=== Data Protocol ===
+.	How important are climate feedbacks to natural SLCF emissions, atmospheric composition, and ERF?
-=== SSG ===
+These questions will be addressed through targeted simulations with CMIP6 climate models that include an interactive representation of tropospheric aerosols and atmospheric chemistry. These simulations build on the CMIP6 Diagnostic, Evaluation and Characterization of Klima (DECK) experiments, the CMIP6 historical simulations, and future projections performed elsewhere in CMIP6, allowing the contributions from aerosols and/or chemistry to be quantified. Specific diagnostics are requested as part of the CMIP6 data request to highlight the chemical composition of the atmosphere, to evaluate the performance of the models, and to understand differences in behaviour between them.
-=== Links ===
+** {{:aerocom:aerchemmip:AerChemMIP_RFMIP_planned_papers_07132020.pdf | AerChemMIP & RFMIP Forthcoming and Planned Papers}}**:
+If you are performing an analysis not already listed in this document, please add information [[ https://docs.google.com/document/d/1TKGX-Y7dGYr1U4ezsWYA9V8XmzHsSsNhNQ39ZVjPI4E/edit|here]].
+/* **AerChemMIP/RFMIP Analysis Topics**: You are invited to comment on [[https://docs.google.com/document/d/1-Mr3IwqbqNcU-_TTiu1oGhTOge9V-3efHTu87WdpAjI/edit?usp=sharing|this google doc]], suggest your contribution or your interest to analyze model simulations submitted to ESGF in support of AerChemMIP and [[https://rfmip.leeds.ac.uk/| RFMIP]]. Please enter your suggestions until July 5, 2019, so that preliminary plans can be made before the summer.
+The leads for the topics and the AerChemMIP/RFMIP chairs will discuss a revised document by ca mid July and this will be sent around again or entered in the above mentioned document.
+**AerChemMIP and RFMIP paper outline (status August 26, 2019)**
+{{ :aerocom:aerchemmip:AerChemMIP_RFMIP_planned_papers_08262019.pdf |Short note on planned papers}}
+''In preparation of the second order draft of the IPCC AR6 WG1, early drafts of papers are requested by late Oct/early November. Papers can be sent via email to ar6chapter6papers@ipcc-wg1.fr. All papers received will be treated as confidential.''
+*/
+''The literature and data acceptance cut-off date for the IPCC AR6 WG1 report has been delayed to 31 January 2021 as part of an overall adjustment to the WGI timeline implemented after a broad consultation with authors, the broader community and editors of journals on the implications of COVID-19.
+The 30th September 2020 nonetheless remains as a “soft” or “intermediate” cut-off date ahead of the final deadline on 31st January 2021.
+Please send papers via email to ar6chapter6papers@ipcc-wg1.fr.''
+**Further AerChemMIP Information**:
+  * [[https://www.atmos-chem-phys.net/special_issue1057.html|AerChemMIP ACP Special Issue]]
+  * [[http://www.geosci-model-dev-discuss.net/gmd-2016-139/|AerChemMIP GMD paper Collins et al. (2017)]]
+  * [[https://docs.google.com/spreadsheets/d/1yMs2_YZ-uaRgwIsa1hVvJb6_zGmQdsi9nUlQgdUfIAo/edit#gid=0 | Multimodel AerChemMIP Status]] (google sheet courtesy Fiona O'Connor)
+  * [[https://esgf-node.llnl.gov/search/cmip6/ | Download AerchemMIP Data from ESGF]], [[https://esgf.github.io/esgf-user-support/user_guide.html|tutorial]] on how to download data from ESGF
+  *  [[https://pcmdi.llnl.gov/CMIP6/ArchiveStatistics/esgf_data_holdings/AerChemMIP/index.html | ESGF CMIP6 AerChemMIP Data Holdings]]
+  *  [[https://view.es-doc.org/?renderMethod=name&project=cmip6&type=cim.2.designing.Project&client=esdoc-url-rewrite&name=aerchemmip|AerChemMIP experiments via ES-DOC]]
+  *  [[https://search.es-doc.org/|Get Model information  via ES-DOC]] (choose Model under Document Type to see select the model for which information is needed)
+  * [[aerocom:aerchemmip:diagnostics| EXCEL tables of AerChemMIP data request]]
+  * [[http://lists.met.no/mailman/listinfo/aerchemmip| AerChemMIP email list]]
+  * [[https://docs.google.com/document/d/1IprvZ2H9XXtBTqnQfF4IK0FYgQardQJZ165k3IS8knQ/edit?usp=sharing | Frequently Asked Questions]]
+/* Experiments overview:
+[[http://rawgit.com/WCRP-CMIP/CMIP6_CVs/master/src/CMIP6_experiment_id.html|CMIP6 and AerChemMIP experiment list]]
+Analysis:
+[[https://wiki.met.no/aerocom/aerchemmip/analysis|AerChemMIP analysis topics]] */
+**Further CMIP6 Information**:
+  * [[http://www.wcrp-climate.org/wgcm-cmip/wgcm-cmip6| CMIP6]]
+  * [[https://search.es-doc.org/ | CMIP6 Experiments ]] (choose Experiment under Document Type to see the full list of CMIP6 experiments)
+  * [[http://www.wcrp-climate.org/wgcm-cmip/wgcm-cmip6| CMIP6 forcing datasets]] ([[https://esgf-node.llnl.gov/projects/input4mips/ | input4MIPs]])
+  * [[https://www.wcrp-climate.org/modelling-wgcm-mip-catalogue/modelling-wgcm-cmip6-endorsed-mips| Endorsed CMIP6 MIPs]]
+  * [[http://clipc-services.ceda.ac.uk/dreq/index.html|CMIP6 data request]]
+**Meetings**
+rd Tri-MIP workshop
+  * Registration  and more info coming up in September
+  * "Virtual" 16-20 November 2020
+  * Times: 2 hours every day (incl. 1 hour discussion)
+  * EU 	  3pm -   5pm
+  * NY 	  9am - 11am
+  * CA 	  6am -   8am
+  * JP  	10pm - 12midnight
+  * CH 	  9pm - 11pm
+[[http://splash.princeton.edu/trimip/|2nd Tri-MIP]] (joint [[https://wiki.met.no/aerocom/aerchemmip/start|AerChemMIP]]/[[https://cicero.oslo.no/en/PDRMIP|PDRMIP]]/[[https://rfmip.leeds.ac.uk/| RFMIP]]) workshop in Princeton University, Princeton, NJ, 11-14 June 2019
+st Tri-MIP workshop in University of Reading, Reading, UK, 11-15 June 2018