ECHAM5-HAM precipitation and aerosol optical depth data

<strong>Introduction:</strong> These files contain data from ECHAM5.5-HAM2.0 model simulations. The Sundqvist stratiform cloud cover scheme has been used. The simulations are described in Grandey et al. (2013; doi:10.5194/acp-13-3177-2013) and Grandey et al. (2014; doi:10.1002/2014GL060958). These data are analysed in Grandey et al. (2014; 10.1002/2014GL060958). <strong>File size warning:</strong> These files are relatively large. <strong>File format:</strong> .nc is the extension for NetCDF format, a binary data format commonly used for climate model output data. These NetCDF files contain metadata which aid interpretation of the contents. The metadata and data can be explored using the free Panoply software tool (http://www.giss.nasa.gov/tools/panoply/ [28-Aug-2015]). <strong>File naming convention:</strong> - HAM_B011 refers to the control simulation. - HAM_B013 refers to the NoConvScav simulation, in which wet scavenging by convective precipitation has been turned off. - *_apr_*.nc contain precipitation data. - *_aod_*.nc contain aerosol optical depth data. - *_aoddry_* contain dry aerosol optical depth data. <strong>Contributions and acknowledgments:</strong> Philip Stier and Till M. Wagner contributed to the experimental design. P.S. contributed to the configuration of ECHAM5-HAM. P.S., T.M.W. and Anisha Gururaj contributed towards the analysis in Grandey et al. (2014). The simulations were performed while B.S.G. was supported by a UK Natural Environment Research Council (NERC) DPhil studentship. The analysis was performed while B.S.G. was funded by the Singapore National Research Foundation (NRF) through the Singapore-MIT Alliance for Research and Technology (SMART) Center for Environmental Sensing and Modeling (CENSAM). <strong>Paper reference for further details:</strong> Grandey, B. S., A. Gururaj, P. Stier and T. M. Wagner (2014), Rainfall-aerosol relationships explained by wet scavenging and humidity, <em>Geophysical Research Letters</em>, doi:10.1002/2014GL060958<strong>引言：</strong>本数据集包含ECHAM5.5-HAM2.0模式模拟产生的实验数据，采用了Sundqvist层状云量方案。相关模拟细节已在Grandey等人2013年发表的论文（doi:10.5194/acp-13-3177-2013）以及Grandey等人2014年的研究（doi:10.1002/2014GL060958）中详述，本数据集的分析工作同样基于Grandey等人2014年的上述研究。<strong>文件大小提示：</strong>本数据集文件体积较大。<strong>文件格式：</strong>扩展名为.nc的文件为网络通用数据格式（NetCDF），这是一种常用于气候模式输出结果的二进制数据格式。此类NetCDF文件包含有助于解析数据内容的元数据，可通过免费Panoply软件工具（http://www.giss.nasa.gov/tools/panoply/ [2015年8月28日访问]）浏览元数据与数据集内容。<strong>文件命名规则：</strong>- HAM_B011 代表对照模拟实验；- HAM_B013 代表NoConvScav模拟实验，即关闭对流降水湿清除过程的模拟；- 文件名包含`_apr_`的文件为降水数据文件；- 文件名包含`_aod_`的文件为气溶胶光学厚度数据文件；- 文件名包含`_aoddry_`的文件为干气溶胶光学厚度数据文件。<strong>贡献与致谢：</strong>Philip Stier与Till M. Wagner参与了实验设计工作，P.S. 完成了ECHAM5-HAM的配置工作。P.S.、T.M.W.以及Anisha Gururaj参与了Grandey等人2014年研究的数据分析工作。本模拟实验开展期间，B.S.G. 获得了英国自然环境研究理事会（NERC）的哲学博士奖学金资助。数据分析工作开展期间，B.S.G. 获得了新加坡国家研究基金会（NRF）通过新加坡-麻省理工学院研究与技术联盟（SMART）环境传感与建模中心（CENSAM）提供的经费支持。<strong>详细内容参考文献：</strong>Grandey, B. S., A. Gururaj, P. Stier 和 T. M. Wagner (2014), 《由湿清除与湿度阐释的降水-气溶胶关联》，《Geophysical Research Letters》，doi:10.1002/2014GL060958