WRF-Chem Volcano output - Etna Christmas 2018 (run L2)
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资源简介:
Output from a model run of a modified version of WRF-Chem, which we refer to as WRF-Chem Volcano (WCV). At the time of submission of this dataset, these data were the basis of the modelling part of a paper in preparation, working title: "WRF-Chem modelling and TROPOMI observations of halogen chemistry within the plume of Etna's Christmas 2018 eruption".
The code of WCV is maintained here. Development of this code will continue after the submission of this repository, This branch is a permanent record of the code as used to create this dataset.
This is a simulation of the chemistry of the plume of the 2018 eruption of Mount Etna. This simulation includes bromine, chlorine and mercury chemistry. The time period covered is the 24-27 December, however please note that the author considers the first 24 hours of simulation to be "spin up", and that the modelled volcanic fluxes were assigned based on observations at midday on the 25th, and were not calibrated specifically for the 26th or 27th.
"Run L2" refers the internal serial number assigned to this model run.
Overview of files
Output files: wrfout_d0*_YYYY-MM-DD_HH:MM:SS
Output data is contained in NetCDF files. Each file contains hourly snapshots of the 3D simulation with fields for various parameters. Most of the 4D (three spatial dimensions and time) variables record modelled mixing ratios of various species (in units ppm). Many other variables are standard WRF-Chem output variables; please see WRF-Chem's documentation. If the meaning of a variable is unclear, please contact the author.
Files are separated by model domain and by time. The "d0x" value specifies the model domain. Domain 1 is the full extent of the modelled area and has grid cells of 30 km × 30 km. Domains 2, 3, 4 each model a successively smaller area subset at a 3x greater resolution than their parent domain. Please see the ACPD paper for further details on this.
For operational reasons, the number of hours in different output files is slightly irregular:
Files wrfout_d0x_2018-12-24_00:00:00 contain 24 hourly snapshots from 2018-12-24_00:00:00 -- 2018-12-24_23:00:00
Files wrfout_d0x_2018-12-25_00:00:00 contain 24 hourly snapshots from 2018-12-25_00:00:00 -- 2018-12-25_23:00:00
Files wrfout_d0x_2018-12-26_00:00:00 contain 1 snapshot, 2018-12-26_00:00:00 only
Files wrfout_d0x_2018-12-26_01:00:00 contain 24 hourly snapshots from 2018-12-26_01:00:00 -- 2018-12-27_00:00:00
Files wrfout_d0x_2018-12-27_01:00:00 contain 24 hourly snapshots from 2018-12-27_01:00:00 -- 2018-12-28_00:00:00
Input files
This repository also contains various input files for the WRF-Chem simulation.
wrfinput_d0x (netcdf format) defines the initial conditions assigned for the beginning of the simulation (2018-12-24 00:00:00) for each of the model domains.
wrfbdy_d01 (netcdf format) defines the boundary conditions for the simulation.
wrfchemi_d0x_YYYY-MM-DD_HH:MM:SS (netcdf format) defines, for each day and domain of the simulation, anthropogenic emissions.
wrfchemv_d0x (netcdf format) defines the volcanic emissions. A file is specified for each domain.
namelist.input (text file) defines various wrf-chem runtime options
本数据集源自WRF-Chem修改版本的模型运行结果,我们将该修改版本命名为WRF-Chem Volcano(WCV)。在本数据集提交时,这些数据是一篇待发表论文建模部分的核心支撑数据,该论文暂定标题为:"WRF-Chem模拟与TROPOMI(对流层监测仪器)观测2018年埃特纳火山圣诞喷发羽流内的卤素化学过程"。
WCV的代码维护于本仓库。本仓库提交后,该代码的开发仍将继续,当前分支为生成本数据集所使用代码的永久存档版本。
本数据集为2018年埃特纳火山喷发羽流的化学过程模拟结果,涵盖溴、氯与汞的化学过程。模拟时段为12月24日至27日,但需注意:作者将模拟的前24小时视为“自旋启动”阶段;模拟所用的火山通量参数基于12月25日正午的观测数据赋值,并未针对12月26日或27日进行专门校准。
"Run L2"为本模型运行所分配的内部序列号。
### 输出文件
输出文件命名格式为:wrfout_d0*_YYYY-MM-DD_HH:MM:SS
输出数据存储于网络通用数据格式(NetCDF)文件中,每个文件包含三维模拟的逐小时快照,涵盖多类参数场。绝大多数四维(三维空间维度+时间)变量记录了各类物种的模拟混合比(单位:百万分比浓度(ppm))。其余多数变量为标准WRF-Chem输出变量,详细说明请参阅WRF-Chem官方文档。若对某变量的含义存在疑问,请联系作者。
文件按模型区域与时间进行拆分,“d0x”代表模型区域编号。区域1为模拟的全域,网格分辨率为30 km × 30 km。区域2、3、4依次为更小的区域子集,分辨率相较于其父区域提升3倍。关于该设置的详细信息,请参阅《大气化学与物理讨论》(ACPD)期刊的相关论文。
受运行操作限制,不同输出文件包含的小时数略有不规则:
- wrfout_d0x_2018-12-24_00:00:00 包含2018年12月24日00:00:00至23:00:00的24小时逐小时快照
- wrfout_d0x_2018-12-25_00:00:00 包含2018年12月25日00:00:00至23:00:00的24小时逐小时快照
- wrfout_d0x_2018-12-26_00:00:00 仅包含2018年12月26日00:00:00的1帧快照
- wrfout_d0x_2018-12-26_01:00:00 包含2018年12月26日01:00:00至2018年12月27日00:00:00的24小时逐小时快照
- wrfout_d0x_2018-12-27_01:00:00 包含2018年12月27日01:00:00至2018年12月28日00:00:00的24小时逐小时快照
### 输入文件
本仓库同时包含WRF-Chem模拟所需的各类输入文件:
- wrfinput_d0x(网络通用数据格式(NetCDF)):定义各模型区域在模拟起始时刻(2018年12月24日00:00:00)的初始条件
- wrfbdy_d01(网络通用数据格式(NetCDF)):定义模拟所用的边界条件
- wrfchemi_d0x_YYYY-MM-DD_HH:MM:SS(网络通用数据格式(NetCDF)):定义模拟每日与各区域的人为排放通量
- wrfchemv_d0x(网络通用数据格式(NetCDF)):定义火山排放通量,为每个模型区域单独配置一个文件
- namelist.input(文本文件):定义WRF-Chem的各类运行时参数选项
创建时间:
2021-03-31



