Joint IAV-IAM Committee

Ad Hoc Joint IAV-IAM Committee on Development and Use of Socio-Economic Scenarios (JIIC)

       The Joint IAV-IAM Committee was proposed in November 2011 in Boulder, Colorado, at the Workshop on The Nature and Use of New Socioeconomic Pathways for Climate Change Research.  Shortly thereafter, members of the IAM and IAV communities self-organized a Joint IAV-IAM Committee on Development and Use of Socioeconomic Scenarios to:

a) Complete fast-track Shared Socioeconomic Pathways (SSPs) including narratives and quantification from models and other sources in time for use in AR5; and

b) Facilitate establishment of a research program and limited coordinating infrastructure for a long term IAV-IAM agenda for development and application of integrated scenarios beyond the AR5.

Committee Membership

Kram, Tom (co-chair)  |  Netherland Environmental Assessment Agency  | Utrecht, Netherlands

Moss, Richard (co-chair) |  Joint Global Change Research Institute   |  College Park, Maryland, USA

Calvin, Kate   | Joint Global Change Research Institute   | College Park, Maryland, USA

Carter, Tim (observer) |  Finnish Environment Institute (SYKE) | Helsinki, Finland

Ebi, Kristie (observer) | IPCC Working Group II Technical Support Unit   |  Stanford, California, USA

Edmonds, Jae  |  Joint Global Change Research Institute |  College Park, Maryland, USA

Hallegatte, Stephane | Centre Internaional de Recherche sur l'Environnement et le Developpement(CIRED) | Paris, France

Kriegler, Elmar | Potsdam Institute for Climate Impacts Research  |  Potsdam, Germany

Levy, Marc   |   Center for Intern'l Earth Science Information Network (CIESIN)  | New York, New York, USA

Masui, Toshihiko   |  National Institute for Environmental Studies   |  Tsukuba, Japan

Mearns, Linda   |  National Center for Atmospheric Research (NCAR)  |  Boulder, Colorado, USA

O'Neill, Brian   |  National Center for Atmospheric Research (NCAR)   |  Boulder, Colorado, USA

Riahi, Keywan  |  International Institute for Applied Systems Analysis (IIASA)  |  Laxenburg, Austria

van Ruijven, Bas  |  National Center for Atmospheric Research (NCAR)   |  Boulder, Colorado, USA

van Vuuren, Detlef  |  Netherland Environmental Assessment Agency  |  Utrecht, Netherlands

Working Groups

The work of the joint committee will initially focus on several high priority tasks. Informal working groups have been formed to coordinate inputs from interested individuals and to develop drafts for circulation and comment. These are open to inputs and participation from any interested individuals. The list of working groups below includes contact information for the WG chairs. See individual working group pages for further information. If you are interested in working on one of these topics, please contact the WG co-chair.

Narratives for SSPs
Chairs: Brian O'Neill, Elmar Kriegler

Work with broadened membership to explore adding information on governance & institutions, income distribution (add to existing), and “shocks” to global SSPs. Revise and finalize narratives for SSPs (build on Boulder drafts and incorporating Hague workshop feedback). Develop plan for ensuring SSPs communicate effectively with end users and the public.

IAV-IAM handshake document and research community interactions  
Chair: Jae Edmonds

Fast-track: Produce an IAV-IAM “Handshake Document”. Plan handoffs and feedbacks between IAMs and MIPs. Complete series of special issues. Coordinate outreach and review process.

IAM quantitative drivers and IAM scenarios for SSPs
Chairs: Detlef van Vuuren, Keywan Riahi

Produce IAM scenarios (input assumptions and model outputs) for IAM representative scenarios based on the SSPs. Identify “challenges” metrics for fast-track process; Develop a small number of shared policy scenarios drawing on EMF and other intercomparisons for mitigation policy ideas; Archive data sets in the SSP scenario data base hosted by IIASA. Document scenarios in a special issue of a scientific journal.

IAV quantitative elements and evaluation metrics     
Co-chairs: Marc Levy,  Bas van Ruijven

Identify and quantify indicators useful to IAV researchers and other users not produced by IAMs. Scope and incorporate information/data for near-term (pre 2050) decades. Develop ideas for incorporating adaptation policy into SPAs and coordinate with IAM quantification group; Explore methods for calibrating new and existing scenarios in the “challenge” matrix.

Nested scenarios across geographies and time
Co-chairs: Kate Calvin, Linda Mearns

Develop and implement a plan for producing nested (a.k.a. regional) scenarios. Consider how much consistency is needed (for specific questions/uses). Identify ongoing activities, list resources (e.g., technical guidance), link to ESSP and other programs to encourage use of SSPs, compile information on SSP-related scenarios.

Roadmap for future IAV–IAM collaboration on scenarios
Co-chairs: Stephane Hallegatte

Prepare a joint IAV-IAM roadmap for further development and application of SSPs and scenarios based on them, including iterative development, application, and revision reaching beyond the IPCC AR5 timeline. Scope and propose research program in ESSP or Future Earth.