Supplementary code and data for "Does the biosphere lift nutrients against gravity, or redirect solar energy? A thermodynamic reframing of planetary biogeowork

This dataset accompanies the peer-reviewed Perspective article submitted to Earth
System Dynamics (Copernicus Publications), which proposes a three-component
decomposition of the biosphere's thermodynamic role in the Earth system: (i) active
biogeowork W_A, the mechanical work performed using metabolic free energy derived
from gross primary production; (ii) mediated biogeowork DeltaPhi_M, the solar-driven
flux redirected through biological structures, dominated by the biogenic enhancement
of latent heat flux DeltaLE_bio relative to an abiotic counterfactual land surface;
and (iii) the resulting entropy-export enhancement DeltaSdot_bio. A dimensionless
leverage ratio Lambda_bio = DeltaPhi_M / W_A quantifies the amplification by which
biological infrastructure redirects solar energy per unit metabolic investment.

The dataset contains:

1. PBGT_Supplementary.ipynb — a Jupyter notebook (Python 3.11) that reproduces every
numerical claim in Section 3 of the paper, including the physical constants,
reference fluxes from published datasets (Trenberth et al., 2009; Beer et al., 2010;
Jasechko et al., 2013), the three biogeowork components, the leverage ratio,
diagnostic quantities (gh/L_v and the gravitational potential energy of transpired
water), and a Monte Carlo sensitivity analysis (N = 100,000) propagating the three
dominant uncertainty sources identified in Section 3.3 (mechanical-conversion
efficiency eta_mech, biogenic fraction of latent heat flux f_bio, and effective
radiating temperature T_rad).

2. figure01.pdf and figure01.png — Figure 1 of the manuscript (energy-flux hierarchy
and biospheric leverage), generated by the notebook. The figure is styled for
Earth System Dynamics (Copernicus) specifications: serif fonts (Times/STIX),
Wong colorblind-safe palette with hatch patterns for grayscale accessibility,
and 300 dpi output.

3. table1_global_estimates.csv — a machine-readable version of Table 1 of the
manuscript (global estimates of biosphere thermodynamic components with symbols,
central values, units, and source references).

The notebook is self-contained: no external data files are required, and all source
values are published literature constants cited inline. Execution takes under one
minute on a standard laptop. Compatible with Google Colab and local Python 3.11+
installations. Dependencies: numpy, pandas, matplotlib (all included in standard
scientific Python distributions).

Reuse is encouraged under the CC BY 4.0 license. If this material contributes to
your work, please cite the accompanying paper and this dataset via its DOI.

本数据集配套提交给《地球系统动力学（Earth System Dynamics）》（哥白尼出版社（Copernicus Publications））的同行评议观点文章，该文章提出了生物圈在地球系统中热力学作用的三分分解框架：(i) 活性生物地球功（active biogeowork）$W_A$，即利用从总初级生产中获取的代谢自由能完成的机械功；(ii) 介导型生物地球功（mediated biogeowork）$DeltaPhi_M$，即通过生物结构重新定向的太阳驱动通量，其核心表现为相较于非生物对照陆地表面，生物成因增强的潜热通量$Delta LE_{bio}$；以及(iii) 由此产生的熵输出增强量$Delta dot{S}_{bio}$。我们引入无量纲杠杆比$Lambda_{bio} = DeltaPhi_M / W_A$，用以量化生物基础设施在单位代谢投入下重新定向太阳能的放大倍数。

本数据集包含以下内容：
1. PBGT_Supplementary.ipynb — 一款基于Python 3.11的Jupyter Notebook，可复现论文第3节中的全部数值结论，涵盖物理常数、已发表数据集的参考通量（Trenberth等，2009；Beer等，2010；Jasechko等，2013）、三类生物地球功组分、杠杆比、诊断量（$gh/L_v$与蒸腾水的重力势能），以及传播第3.3节中识别的三类主要不确定性来源（机械转换效率$eta_{mech}$、潜热通量生物成因占比$f_{bio}$、有效辐射温度$T_{rad}$）的蒙特卡洛敏感性分析（$N=100,000$）。
2. figure01.pdf与figure01.png — 论文图1（能量通量层级与生物圈杠杆比），由上述Notebook生成。该图符合《地球系统动力学》的排版规范：采用衬线字体（Times/STIX）、使用Wong色盲友好调色盘并搭配 hatch 图案以适配灰度无障碍阅读，输出分辨率为300 dpi。
3. table1_global_estimates.csv — 论文表1的机器可读版本，包含全球生物圈热力学组分估算值的符号、中心值、单位与来源引用。

该Notebook为自包含式文件，无需依赖外部数据文件，所有源数值均为已发表的文献常数并已在文中内联引用。在标准笔记本电脑上运行耗时不足一分钟，兼容Google Colab与本地Python 3.11及以上版本安装环境。依赖项包括numpy、pandas、matplotlib（均包含于标准科学Python发行版中）。

本数据集采用CC BY 4.0许可协议，鼓励再利用。若本材料对你的研究有所贡献，请引用配套论文及本数据集的DOI。