A future-ready Open Global Glacier Model (OGGM)

面向未来的开放全球冰川模型 (OGGM)

• 批准号: 443178605
• 负责人: Professor Dr. Ben Marzeion
• 金额: --
• 依托单位: Department of Atmospheric and Cryospheric Sciences (ACINN)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/443178605?language=en
• 关键词: future; ready; Open; Global; Glacier

Glaciers form prominent features of many landscapes, and their global shrinking has become an icon of climate change. Glaciers are a source of geohazards, are important regulators of water availability for downstream populations in many regions of the world, and are a major contributor to sea-level rise. With recent advances in Earth observation and numerical modelling, a new branch of glaciology (“global scale glaciology”) emerged to estimate the volume of all 200 000 glaciers of the world, as well as their past and future evolution. Past glacier change can be estimated from direct measurements and from space, but to generate projections of future glacier change and associated impacts, scientists use numerical models of glacier evolution. The Open Global Glacier Model (OGGM, http://oggm.org) is one of the leading models for such applications. The model is open-source and modular (meaning that anyone can access its code and make additions to it), and therefore is already used by several research groups worldwide. However, it is currently developed by a small group of scientists, and the model development faces new challenges as its user base is growing. It is crucial to ensure that OGGM is ready to be used to address future global challenges. With this project, we seek to hire a trained software developer or a scientist with strong software engineering skills to work in team with the OGGM developers for a period of two years. We plan to significantly increase the robustness of the model by adding innovative testing protocols, removing and refactoring outdated code, and by developing new uncertainty estimation routines. Our goal is increase the model’s capacity to work with alternative and innovative modeling approaches originating from the greater science community, to model processes such as glacier calving or glacier dynamics. We will also encourage new users and developers to adopt the model by offering interactive online tutorials and training workshops, and, thanks to modern cloud technologies, we will offer specific training and resources to scientists less likely to have access to high performance computing resources.

冰川形成了许多景观的突出特征，它们的全球萎缩已成为气候变化的标志。冰川是地质灾害的来源，是世界许多地区下游人口可用水的重要调节者，也是海平面上升的主要原因。随着地球观测和数值模拟的最新进展，出现了一个新的冰川学分支（“全球尺度冰川学”），以估计世界上所有20万个冰川的体积，以及它们过去和未来的演变。过去的冰川变化可以通过直接测量和空间来估计，但为了预测未来的冰川变化和相关影响，科学家们使用冰川演变的数值模型。开放全球冰川模型（OGGM，http://oggm.org）是此类应用的主要模型之一。该模型是开源和模块化的（这意味着任何人都可以访问其代码并对其进行添加），因此已经被全球多个研究小组使用。然而，它目前是由一小群科学家开发的，随着用户群的不断增长，模型开发面临着新的挑战。关键是要确保OGGM能够用于应对未来的全球挑战。在这个项目中，我们寻求聘请一名训练有素的软件开发人员或具有强大软件工程技能的科学家与OGGM开发人员一起工作两年。我们计划通过增加创新的测试协议，删除和重构过时的代码，并通过开发新的不确定性估计例程来显着提高模型的鲁棒性。我们的目标是提高模型的能力，使其能够与来自更大科学界的替代和创新建模方法一起工作，以模拟冰川崩解或冰川动力学等过程。我们还将通过提供交互式在线教程和培训研讨会来鼓励新用户和开发人员采用该模型，并且，由于现代云技术，我们将为不太可能获得高性能计算资源的科学家提供特定的培训和资源。