Simulations of HAPPI (Half a degree Additional warming, Prognosis and Projected Impacts) Tier-1 experiments based on the ECHAM6.3 atmospheric model of the Max Planck Institute for Meteorology (MPI-M)

• Main Authors: Lierhammer, Ludwig, Mauritsen, Thorsten, Legutke, Stephanie, Esch, Monika, Wieners, Karl-Hermann, Saeed, Fahad
• Format: Dataset
• Language: English
• Published: World Data Center for Climate (WDCC) at DKRZ 2017
• Subjects: Climate; ECHAM6.3; HAPPI; model data; Sea ice
• Online Access: https://dx.doi.org/10.1594/wdcc/happi-mip-global-echam6.3; http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=HAPPI-MIP-global-ECHAM6.3

Project: HAPPI-MIP international initiative - The international HAPPI-MIP (Half a degree Additional warming, Prognosis and Projected Impacts - Model Intercomparison Project) initiative [1] has been launched in response to the announced intent of the IPCC (Intergovernmental Panel on Climate Change) to publish the special report SR1.5 on the impacts of global warming of 1.5°C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty. In addition, HAPPI-Land (HAPPI - Land-use scenario experiment) was initiated to investigate the biogeophysical effects of land-based mitigation in different low emission scenarios. The HAPPI-MIP and HAPPI-Land data belong to the data protocol of HAPPI-MIP [2]. The file format is NetCDF containing time series of a single variable per file. The meta data model is very similar to that of CMIP5. The HAPPI-MIP initiative and the model simulations it proposes are described in detail in Mitchell et al., 2017 [3]. Details and results on the HAPPI-Land initiative are described and discussed in Hirsch et al., 2018 [4] Each CERA experiment of this project contains the data based on a single model. References: [1] http://www.happimip.org/ [2] http://www.happimip.org/wp-content/uploads/2016/05/HAPPI_request_diagnostics_final.pdf [3] https://doi.org/10.5194/gmd-10-571-2017 [4] https://doi.org/10.1002/2017EF000744 Summary: Please note that data representing a warmer future climate are flawed by the use of incorrect sea ice coverage data. All data of the 1.5°C and the 2.0°C experiment of this CERA experiment have been replaced by and all data of the current decade and the 57-year-long AMIP experiment have been copied to http://cera-www.dkrz.de/WDCC/ui/Compact.jsp?acronym=HAPPI-global-ECHAM6.3_v2. For detailed information refer to that experiment. Global HAPPI-MIP protocol data based on the ECHAM6.3 AGCM developed by the MPI-M (Max Planck Institute for Meteorology). This CERA experiment includes data of five AMIP simulations of the period 1959-2015 and 100 AMIP simulations of 2006-2015. In addition it includes data of 100 AMIP-like simulations of 2106-2115 representing a climate warmer by 1.5°C than under pre-industrial conditions (1861-1880) and 100 AMIP-like simulations of 2106-2115 representing a climate warmer by 2.0°C than under pre-industrial conditions.