CCSRNIES_SRES_B2_VGRD200

Project: IPCC Data Distribution Centre : Third Assessment Report data setsThe Intergovernmental Panel on Climate Change (IPCC) has been established by WMO und UNEPto assess scientific, technical and socio-economic information, relevant for theunderstanding of climate change, its potential impacts and option for adaption and migration.Projection of future trends for a number of key variables are provided through thissection of the DDC (http://www.mad.zmaw.de/IPCC_DDC/html/ddc_gcmdata.html).This information contained in either IS92 emission scenarios (IPCC 1992), the SpecialReport on Emission Scenarios (IPCC 2000, SRES) or published model studies using data fromthese scenarios.Six alternative IPCC scenarios (IS92a to f) were published in the 1992 Supplementary Reportto the IPCC Assessment. These scenarios embodied a wide array of assumption affecting howfuture greenhouse gas emissions might evolve in the absence of climate policies beyondthose already adoped.The SRES scenarios have been constructed to explore future developmentsin the global enviromental with special reference to the production of greenhouse gasesand aerosol precursor emission.A set of four scenario families (A1, A2, B1, B2) have been developed that each of thisstorylines describes one possible demographic, polito-economic, societal and technologicalfuture. Model experiments, also using different forcing scenarios, were calculatedat other modeling centres.Emissions Scenarios. 2000 ,Special Report of the Intergovernmental Panel on Climate ChangeNebojsa Nakicenovic and Rob Swart (Eds.)Cambridge University Press, UK. pp 570Summary: The SRES data sets were published by the IPCC in 2000 and classifiedinto four different scenario families (A1, A2, B1, B2).SRES_B2 storyline describes a world in which the emphasis is onlocal solutions to economic, social and enviromental sustainability.The global population is increasing at a lower rate than A2. It hasan intermediate level of economic development and a less rapid andmore diverse technological change than in A1 and B1.The model developed by the Center for Climate System Resaerch/NationalInstitute for Enviromental Studies in Tokyo consists of the atmosphericcomponent which has vertical resolution of 20 levels and the triangulartruncation at wavenumber 21 (T21). The ocean model has 17 verticallevels and the same resolution.CCSRNIES_AGCM (http://www.ccsr.u-tokyo.ac.jp/ehtml/eatmos.html )CCSRNIES_OGCM (http://www.ccsr.u-tokyo.ac.jp/ehtml/eocean.html )The changes of anthropogenic emissions of CO2, CH4, N2O and sulphurdioxide are prescribed according to the above mentioned scenario.