Advancing Our Understanding of the Impacts of Historic and Projected Land Use in the Earth System: The Land Use Model Intercomparison Project (LUMIP)

Tuesday, 16 December 2014: 12:05 PM
David M Lawrence, National Center for Atmospheric Research, Boulder, CO, United States, George C Hurtt, University of Maryland College Park, College Park, MD, United States, Victor Brovkin, MPI for Meteorology, Hamburg, Germany, Katherine V Calvin, Joint Global Change Research Institute, Pacific Northwest National Laboratory, College Park, MD, United States, Nathalie de Noblet-Ducoudre, Institut Pierre Simon Laplace, Paris, France, Chris Jones, Met Office Hadley Centre, Exeter, United Kingdom, Julia Pongratz, Max Planck Institute for Meteorology, Hamburg, Germany, Sonia I Seneviratne, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland and Elena Shevliakova, Princeton Environmental Institute, Princeton, NJ, United States
Earth System Models (ESMs) are including increasingly comprehensive treatments of land use and land management, representing not only land cover change, but also land use in the form of prognostic crop and pasture models, irrigation, fertilization, wood harvest, and urbanization. The Land Use Model Intercomparison Project (LUMIP) is a new (proposed) satellite-MIP within the Coupled Model Intercomparison Project (CMIP) that is designed to address the following main science questions: (1) What are the effects of land use and land-use change on climate (past-future)? (2) What are the effects of climate change on land-use and land-use change? (3) Are there regional land management strategies with promise to help mitigate and adapt to climate change? LUMIP will coordinate across existing land use change projects such as LUCID, AgMIP, GSWP3, Trendy, and LUC4C. LUMIP encompasses three major activities: (1) input and output data harmonization and standardization, (2) development of model metrics to assess ESM performance with respect to the impact of land use on climate and carbon cycling, and (3) design and execution of a concise set of land model and ESM experiments for assessment of the impacts of historic and projected land use on the climate system and to separate effects of fossil fuel vs. land use, biogeochemical vs biogeophysical processes, and land cover vs land management. Preliminary results from idealized model experiments will be presented.