AGU Fall Meeting 2024, Washington, Amerika Birleşik Devletleri, 9 - 13 Aralık 2024, ss.2, (Özet Bildiri)
The Miocene Epoch, between the hot house climate of the Eocene and the more moderate warm climate of the Pliocene, has emerged as an important paleoclimate MIP target due to its dynamic nature, global warmth, and reconstructed atmospheric CO2 concentrations. Miocene CO2 estimates are as low as 300-600 ppmv and as high as 800-1,100 ppmv. The formalized Miocene Model Intercomparison (MioMIP2) aims to address questions about the mechanisms driving observed climatic changes and tipping points seen in the geological record and improve confidence in the ability of climate models to predict future climates and constrain climate sensitivity. Through alignment with PlioMIP and DeepMIP Eocene efforts, a coordinated MioMIP effort will allow for cross-time-period studies that sample the full range of Shared Socioeconomic Pathway paleo analogues. Building on MioMIP1, the Miocene community has been developing the experimental design for MioMIP2. The MioMIP1 effort was an ensemble of opportunity whereby the models, boundary conditions, and reference datasets were different between the modeling groups. MioMIP2 will be the first formal Miocene MIP with common boundary conditions and will target the Miocene Climatic Optimum (MCO; 16.75-14.5 Ma). We present the experimental design for coordinated "Core" MCO simulations and sensitivity studies. This community effort synthesizes paleogeography, icesheet, and vegetation boundary conditions based on the latest available literature and will use geological data synthesized by the companion MioOcean effort to evaluate the simulations.