cmip5 output1 BNU BNU-ESM historicalNat

‘historicalNat’ is an experiment of the CMIP5 — Coupled Model Intercomparison Project Phase 5
(https://pcmdi.llnl.gov/mips/cmip5). CMIP5 is meant to provide a framework for coordinated
climate change experiments for the next five years and thus includes simulations for
assessment in the AR5 as well as others that extend beyond the AR5.

7.1 historicalNat (7.1 natural-only historical simulation) — Version 1: Historical simulation but with natural forcing only.

Experiment design: https://pcmdi.llnl.gov/mips/cmip5/experiment_design.html
List of output variables: https://pcmdi.llnl.gov/mips/cmip5/datadescription.html
Output: time series per variable in model grid spatial resolution in netCDF format
Earth System model and the simulation information: CIM repository

Entry name/title of data are specified according to the Data Reference Syntax
(https://pcmdi.llnl.gov/mips/cmip5/docs/cmip5_data_reference_syntax.pdf)
as activity/product/institute/model/experiment/frequency/modeling realm/MIP table/ensemble
Member/version number/variable name/cMor filename.nc.

"‘historicalNat’是第五阶段耦合模型比对项目（Coupled Model Intercomparison Project Phase 5，简称CMIP5）的实验项目，相关详情可访问https://pcmdi.llnl.gov/mips/cmip5。CMIP5旨在为未来五年的协同气候变化实验搭建标准化框架，涵盖用于第五次联合国政府间气候变化专门委员会评估报告（AR5）的模拟实验，以及超出AR5范围的其他相关模拟内容。

7.1 纯自然历史模拟实验（7.1 natural-only historical simulation）版本1：仅采用自然强迫因素开展的历史气候模拟实验。

实验设计说明可查看：https://pcmdi.llnl.gov/mips/cmip5/experiment_design.html
输出变量清单可查看：https://pcmdi.llnl.gov/mips/cmip5/datadescription.html
实验输出为以对应模型网格空间分辨率输出各变量的时间序列数据，格式为netCDF格式。地球系统模型及模拟相关信息存储于CIM知识库。

该数据集的条目名称与标题需遵循数据参考语法（Data Reference Syntax）规范，相关规范可访问https://pcmdi.llnl.gov/mips/cmip5/docs/cmip5_data_reference_syntax.pdf，命名格式为：活动/产品/机构/模型/实验/频率/建模领域/MIP表格/集合成员/版本号/变量名/cMor文件名.nc。