Helios: A Scalable 3D Plant and Environmental Biophysical Modeling Framework
Helios: A Scalable 3D Plant and Environmental Biophysical Modeling Framework
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DOI：
10.3389/fpls.2019.01185
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发表时间：
2019-10-18
影响因子：
5.6
通讯作者：
Bailey, Brian N.
中科院分区：
文献类型：
--
作者：
Bailey, Brian N.
本文介绍了一个新的三维（3D）植物和环境建模框架的Helios的概述。Helios是一个模型耦合框架，旨在为集成和运行任意3D环境系统模型提供最大的灵活性。用户通过一个文档齐全的开源C++ API与Helios交互。版本1.0附带了辐射传输、表面能量平衡、气孔导度、光合作用、太阳位置和程序树生成的模型插件。还提供了其他插件，用于可视化模型几何形状和数据，以及处理和集成LiDAR扫描数据。许多插件在图形处理单元上执行计算，这允许以高细节高效地模拟非常大的域。一个例子建模研究中，叶级异质性的果园用水和光合作用的研究，以了解这种叶尺度的变化有助于全树和冠层通量。
This article presents an overview of Helios, a new three-dimensional (3D) plant and environmental modeling framework. Helios is a model coupling framework designed to provide maximum flexibility in integrating and running arbitrary 3D environmental system models. Users interact with Helios through a well-documented open-source C++ API. Version 1.0 comes with model plug-ins for radiation transport, the surface energy balance, stomatal conductance, photosynthesis, solar position, and procedural tree generation. Additional plug-ins are also available for visualizing model geometry and data and for processing and integrating LiDAR scanning data. Many of the plug-ins perform calculations on the graphics processing unit, which allows for efficient simulation of very large domains with high detail. An example modeling study is presented in which leaf-level heterogeneity in water usage and photosynthesis of an orchard is examined to understand how this leaf-scale variability contributes to whole-tree and -canopy fluxes.