Datasets used in analysis for article " The 2009-2010 extreme drought effect on Carbon Sink in Southwest China, a land surface modeling perspective"

This dataset hosts data supporting the analysis performed in the article titled "The 2009-2010 extreme drought effect on Carbon Sink in Southwest China, a land surface modeling perspective". This dataset includes data and code supporting the results section and supplementary figures in this paper. The code was written using NCAR Command Language (NCL), developed by the Computational and Information Systems Lab at the National Center for Atmospheric Research (NCAR). Links and instructions for model and analysis tools are provided below: NCL: Developed by the Computational and Information Systems Lab at the National Center for Atmospheric Research (NCAR), available at https://github.com/NCAR/ncl CLM5: https://github.com/ESCOMP/cesm We used the China Meteorological Forcing Dataset (CMFD, https://doi.org/10.11888/Meteoro.tpdc.270961) to drive model simulations. We run the spinup simulation using 2000 to 2016 atmospheric forcing and cycled for 40 times (a total of 680 years) to reach the steady state. The time step of the simulation is 30s, and we analyzed monthly outputs. The spatial resolution was 0.1°×0.1°. The files included in this dataset are described below: Changes in NEE and the recovery time.zip: This file is used to study changes in carbon sinks during drought periods and their recovery time. CLM-simulated carbon flux values.zip: This file contains the CLM5.0 simulation results for carbon flux. General mapping code and files.zip: This file contains supporting materials required for plotting. Precipitation and temperature data.zip: This file contains the precipitation and temperature data used in the paper. Sensitivity of NEE in Southwest China to Extreme Drought.zip: This file contains the calculated sensitivity of carbon sinks to drought, including carbon sink losses under different precipitation and temperature conditions in negative sensitivity areas. Validation data.zip: This file contains processed data used to validate the simulation results of CLM5.0.本数据集为支撑论文《2009-2010年极端干旱对中国西南地区碳汇的影响——基于陆面模式的视角》中的分析工作提供数据支持，包含支撑该论文结果章节与补充插图的数据与代码。本研究所用代码由美国国家大气研究中心（National Center for Atmospheric Research, NCAR）计算与信息系统实验室开发的NCAR命令语言（NCL）编写。 以下提供模型与分析工具的链接及使用说明： NCL：由美国国家大气研究中心（NCAR）计算与信息系统实验室开发，开源地址为https://github.com/NCAR/ncl CLM5：开源地址为https://github.com/ESCOMP/cesm 本研究采用中国气象强迫数据集（CMFD，https://doi.org/10.11888/Meteoro.tpdc.270961）驱动模式模拟。使用2000至2016年的大气强迫数据开展自旋-up模拟，循环运行40次（累计时长达680年）以达到稳态。模拟时间步长为30秒，分析采用逐月输出结果，空间分辨率为0.1°×0.1°。 本数据集包含的文件说明如下： 1. 《净生态系统交换量（Net Ecosystem Exchange, NEE）变化与恢复时长.zip》：该文件用于研究干旱期间碳汇的变化及其恢复时长。 2. 《CLM模拟碳通量数值.zip》：该文件包含CLM5.0模拟得到的碳通量结果。 3. 《通用绘图代码与文件.zip》：该文件包含绘图所需的配套支撑材料。 4. 《降水与气温数据.zip》：该文件包含论文中使用的降水与气温数据。 5. 《中国西南地区净生态系统交换量（NEE）对极端干旱的敏感性.zip》：该文件包含碳汇对干旱的敏感性计算结果，涵盖负敏感性区域内不同降水与气温条件下的碳汇损失情况。 6. 《验证数据.zip》：该文件包含用于验证CLM5.0模拟结果的预处理后数据。