EH4106_6H_1CO2IS92A_W850_2041-2050

Project: IPCC Third Assessment Report ECHAM4/OPYC data sets The project embrases the simulations with the coupled climate model ECHAM4/OPYC, relevant for the third assessment report (TAR, http://www.ipcc.ch/ipccreports/assessments-reports.htm) of the Intergovernmental Panel on Climate Change (IPCC).The IPCC has been established by WMO and UNEP to assess scientific, technical and socio-economic information, relevant for the understanding of climate change, its potential impacts and options for adaption and mitigation. A more detailed description about the work of the IPCC can be found at the IPCC homepage ( http://www.ipcc.ch ) and at ( www.grida.no/climate/ipcc ). As a further development the Special Report on Emission Scenarios (SRES, http://www.grida.no/Climate/ipcc/emission/) have been constructed, to describe (potential) future developments in the global enviroment with special reference to the production of greenhouse gases and aerosol precursor emissions. A set of four scenarios families (A1, A2, B1, B2) have been developed (see also http://www.grida.no/climate/ipcc/emission/index.htm ) The model output data are available at the World Data Center for Climate, Hamburg.( wdc-climate.de ). Projection of future trends based on selected emission scenarios are provided through this project for a great many model variables of ECHAM4/OPYC. For a selected set of variables the IDCC-Data Distribution Center provides additional data sets from a multitude of models that contribute to the IPCC-TAR report (project: IPCC_DDC_TAR). Summary: IPCC-AR3 LUGANO T106 TIME-SLICE INTEGRATION 2*CO2 of Deutsches Klimarechenzentrum Based on the greenhouse gas experiment (GHG) which used the modified scenario IS92a ("IS95a"), two 10 year periods were re-calculated with the higher horizontal resolution (appr. 110 km grid spacing) version (T106) of the ECHAM4 model. The stand-alone atmosphere model was used. The integrations were performed with transient forcing while the results were corrected by the model drift. The drift has been determined from the corresponding control run periods. SSTs have been taken from the Experiment EH4OPYC_22670GHG_MM and the AMIP climatology: SST_NEW(m,y)=(SST_CLIM(m)+SST_T42(m,y))*M+TS_T42(m)*(1-M) with m=1,12 and n=1,10 and M=land-sea mask(sea:1, land:0) This experiment contains results from the decade of CO2 equivalent doubling decade 2041-2050 in the IS92A scenario. Trace gas concentrations were hardcoded as 10-years means in the model. These experiments were calculated on a NEC SX4 in the swiss supercomputer center (CSCS) in Mano near Lugano. The data are used for the third assessment report. Model_raw_data location: schauer.dkrz.de://pf/k/k204026/k204004/04101/atm_d项目：IPCC第三次评估报告ECHAM4/OPYC数据集 本项目涵盖耦合气候模式ECHAM4/OPYC的模拟试验相关数据，服务于政府间气候变化专门委员会（Intergovernmental Panel on Climate Change, IPCC）的第三次评估报告（Third Assessment Report, TAR，访问地址：http://www.ipcc.ch/ipccreports/assessments-reports.htm）。 IPCC由世界气象组织（World Meteorological Organization, WMO）与联合国环境规划署（United Nations Environment Programme, UNEP）联合设立，旨在评估与气候变化、其潜在影响以及适应与减缓措施相关的科学、技术与社会经济信息。 关于IPCC工作的详细说明，可访问IPCC官方网站（http://www.ipcc.ch）与（www.grida.no/climate/ipcc）查阅。 作为后续拓展工作，研究团队编制了《排放情景特别报告》（Special Report on Emission Scenarios, SRES，访问地址：http://www.grida.no/Climate/ipcc/emission/），用于描述全球环境的（潜在）未来发展趋势，重点聚焦温室气体与气溶胶前体物的排放情况。 研究团队共构建了四类情景族（A1、A2、B1、B2，详细信息可访问http://www.grida.no/climate/ipcc/emission/index.htm 查阅）。本项目的模式输出数据可从汉堡世界气候数据中心（World Data Center for Climate, WDCC，访问地址：wdc-climate.de）获取。 本项目针对ECHAM4/OPYC模式的大量变量，提供了基于选定排放情景的未来趋势预估数据。 针对选定的变量集合，IDCC数据分发中心（IDCC-Data Distribution Center）还提供了其他参与IPCC第三次评估报告的多模式数据集（项目代号：IPCC_DDC_TAR）。 摘要：德国气候计算中心（Deutsches Klimarechenzentrum, DKRZ）开展的IPCC第三次评估报告相关试验（IPCC-AR3）：卢加诺（LUGANO）T106时间片积分2倍CO₂试验 本试验基于采用修正情景IS92a（又称"IS95a"）的温室气体实验（Greenhouse Gas Experiment, GHG），使用水平分辨率约为110公里（网格间距）的ECHAM4模式T106版本，对两段10年时段进行了重新模拟计算。本次模拟采用单一大气模式。模拟积分采用瞬变强迫驱动，并通过模式漂移对结果进行了校正。模式漂移量通过对应的对照试验时段计算得到。 海表温度（Sea Surface Temperature, SST）数据取自试验EH4OPYC_22670GHG_MM与大气模式比较计划（Atmospheric Model Intercomparison Project, AMIP）气候态数据，新海表温度计算公式为：SST_NEW(m,y)=(SST_CLIM(m)+SST_T42(m,y))*M+TS_T42(m)*(1-M)，其中m取值为1至12（代表月份），n取值为1至10（代表年份），M为海陆掩码（海洋区域取值为1，陆地区域取值为0）。 本试验包含IS92a情景下CO₂当量加倍时段（2041-2050年）的模拟结果。模式中痕量气体浓度被固定为10年平均值。 本试验在位于卢加诺附近马诺（Mano）的瑞士超级计算机中心（Swiss National Supercomputing Centre, CSCS）的NEC SX4超级计算机上完成。本试验数据服务于IPCC第三次评估报告。 原始模式数据存储路径：schauer.dkrz.de://pf/k/k204026/k204004/04101/atm_d