Freva and ClimXtreme: a software framework for the evaluation of climate extremes

2021 ◽  
Author(s):  
Etor E. Lucio-Eceiza ◽  
Christopher Kadow ◽  
Martin Bergemann ◽  
Mahesh Ramadoss ◽  
Brian Lewis ◽  
...  
Keyword(s):  
Climate Change ◽  
Extreme Events ◽  
Evaluation System ◽  
Environmental Changes ◽  
Numerical Models ◽  
International Standards ◽  
Data Availability ◽  
Earth System ◽  
System Framework ◽  
The Earth

<p>The number of damaging events caused by natural disasters are increasing because of climate change. Projects of public interest such as ClimXtreme (Climate Change and Extreme Events [1, 2]), aim to improve our knowledge of extreme events, the influence of environmental changes and their societal impacts.</p> <p>ClimXtreme takes a holistic approach this problem through different knowledge areas. For that, projects like this need a coordinate effort from many interdisciplinary groups. On the other hand, the continuous improvement of numerical models and increase on observational data availability provides researchers with a growing amount of data to analyze, and the need for greater resources to host, access, and evaluate them efficiently through High Performance Computing (HPC) infrastructures is growing more than ever. Finally, the emphasis these last years on FAIR data principles [3] and the easy reproducibility of evaluation workflows also requires a framework that facilitates these tasks. Freva (Free Evaluation System Framework [4, 5]) is an efficient solution to handle customizable evaluation systems of large research projects, institutes or universities in the Earth system community [6-8] over the HPC environment and in a centralized manner.</p> <p>Freva is a scientific software infrastructure for standardized data and analysis tools (plugins) that provides all its available features both in a shell and web environment. Written in python, is equipped with a standardized model database, an application-programming interface (API) and a history of evaluations, among others:</p> <ul> <li>An implemented metadata system in SOLR with its own search tool allows scientists and their plugins to retrieve the required information from a centralized database. The databrowser interface satisfies the international standards provided by the Earth System Grid Federation (ESGF, e.g. [9]).</li> <li>An API allows scientific developers to connect their plugins with the evaluation system independently of the programming language. The connected plugins are able to access from and integrate their results back to the database, allowing for a concatenation of plugins as well. This ecosystem increases the number of scientists involved in the studies, boosting the interchange of results and ideas. It also fosters an active collaboration between plugin developers.</li> <li>The history and configuration sub-system stores every analysis performed with Freva in a MySQL database. Analysis configurations and results can be searched and shared among the scientists, offering transparency and reproducibility, and saving CPU hours, I/O, disk space and time.</li> </ul> <p>The usage of Freva in the context of ongoing large projects like ClimXtreme will be discussed. Additionally, major updates of the software, system deployment, and core functionalities will be presented.</p> <p><strong> </strong></p> <p><strong>References:</strong></p> <p>[1] https://www.fona.de/de/massnahmen/foerdermassnahmen/climxtreme.php</p> <p>[2] https://www.climxtreme.net/index.php/en/</p> <p>[3] https://www.go-fair.org/fair-principles/</p> <p>[4] Kadow, C. et al. , 2021. Introduction to Freva – A Free Evaluation System Framework for Earth System Modeling. <em>JORS</em>. http://doi.org/10.5334/jors.253</p> <p>[5] gitlab.dkrz.de/freva</p> <p>[6] freva.met.fu-berlin.de</p> <p>[7] https://www.xces.dkrz.de/</p> <p>[8] www-regiklim.dkrz.de</p> <p>[9] https://esgf-data.dkrz.de/projects/esgf-dkrz/</p>

Free Evaluation System Framework (Freva) - New Features and Development

2021 ◽  
Author(s):  
Etor E. Lucio-Eceiza ◽  
Christopher Kadow ◽  
Martin Bergemann ◽  
Mahesh Ramadoss ◽  
Sebastian Illing ◽  
...  
Keyword(s):  
Evaluation System ◽  
System Modeling ◽  
International Standards ◽  
Working Environment ◽  
Data Sets ◽  
Earth System ◽  
Research Projects ◽  
System Framework ◽  
The Earth ◽  
The Evaluation System

<p>The Free Evaluation System Framework (Freva - freva.met.fu-berlin.de , xces.dkrz.de , www-regiklim.dkrz.de - https://github.com/FREVA-CLINT/Freva) is a software infrastructure for standardized data and tool solutions in Earth system science. Freva runs on high performance computers (HPC) to handle customizable evaluation systems of research projects, institutes or universities. It combines different software technologies into one common hybrid infrastructure, where all its features are accessible via shell and web environment. Freva indexes different data projects into one common search environment by storing the metadata information of the self-describing model, reanalysis and observational data sets in a database. The database interface satisfies the international standards provided by the Earth System Grid Federation (ESGF). This implemented metadata system with its advanced but easy-to-handle search tool supports users, developers and their plugins to retrieve the required information. A generic application programming interface (API) allows scientific developers to connect their analysis tools with the evaluation system independently of the programming language used. Facilitation of the provision and usage of tools and climate data automatically increases the number of scientists working with the data sets and identifying discrepancies. Plugins are also able to integrate their e.g. post-processed results into the database of the user. This allows e.g. post-processing plugins to feed statistical analysis plugins, which fosters an active exchange between plugin developers of a research project. Additionally, the history and configuration sub-system stores every analysis performed with the evaluation system in a database. Configurations and results of the tools can be shared among scientists via shell or web system. Therefore, plugged-in tools benefit from transparency and reproducibility. Furthermore, the system suggests existing results already produced by other users – saving CPU hours, I/O, disk space and time. An integrated web shell (shellinabox) adds a degree of freedom in the choice of the working environment and can be used as a gate to the research projects on a HPC. Freva efficiently frames the interaction between different technologies thus improving the Earth system modeling science. New Features and aspects of further development and collaboration are discussed.</p>

Freva - Free Evaluation System Framework - New Aspects and Features

2020 ◽  
Author(s):  
Christopher Kadow ◽  
Sebastian Illing ◽  
Oliver Kunst ◽  
Thomas Schartner ◽  
Jens Grieger ◽  
...  
Keyword(s):  
Evaluation System ◽  
International Standards ◽  
Working Environment ◽  
Data Sets ◽  
Earth System ◽  
Research Projects ◽  
System Framework ◽  
Meta Data ◽  
The Earth ◽  
The Evaluation System

<p>The Free Evaluation System Framework (Freva - freva.met.fu-berlin.de) is a software infrastructure for standardized data and tool solutions in Earth system science. Freva runs on high performance computers to handle customizable evaluation systems of research projects, institutes or universities. It combines different software technologies into one common hybrid infrastructure, including all features present in the shell and web environment. The database interface satisfies the international standards provided by the Earth System Grid Federation (ESGF). Freva indexes different data projects into one common search environment by storing the meta data information of the self-describing model, reanalysis and observational data sets in a database. This implemented meta data system with its advanced but easy-to-handle search tool supports users, developers and their plugins to retrieve the required information. A generic application programming interface (API) allows scientific developers to connect their analysis tools with the evaluation system independently of the programming language used. Users of the evaluation techniques benefit from the common interface of the evaluation system without any need to understand the different scripting languages. Facilitation of the provision and usage of tools and climate data automatically increases the number of scientists working with the data sets and identifying discrepancies. The integrated webshell (shellinabox) adds a degree of freedom in the choice of the working environment and can be used as a gate to the research projects HPC. Plugins are able to integrate their e.g. post-processed results into the database of the user. This allows e.g. post-processing plugins to feed statistical analysis plugins, which fosters an active exchange between plugin developers of a research project. Additionally, the history and configuration sub-systemstores every analysis performed with the evaluation system in a database. Configurations and results of the toolscan be shared among scientists via shell or web system. Therefore, plugged-in tools benefit from transparency and reproducibility. Furthermore, if configurations match while starting an evaluation plugin, the system suggests touse results already produced by other users – saving CPU/h, I/O, disk space and time. The efficient interaction between different technologies improves the Earth system modeling science framed by Freva.</p><p>New Features and aspects of further development and collaboration are discussed.</p><p> </p>

Education on Global Climate and Environmental Change in University of China

2013 ◽  
Vol 838-841 ◽  
pp. 3195-3198
Author(s):  
Jian Cheng Kang ◽  
Xiaochen Su
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Environmental Changes ◽  
Global Climate ◽  
Earth System ◽  
Ecological Civilization ◽  
Environment Change ◽  
Climate And Environmental Change ◽  
The Earth ◽  
Normal University

Global Climate and Environmental Change is an international hot field. To enhance native awareness on climate change is one mission of "State Policy and Action on Climate Change 2009 in China". As an implement, a course on Global Climate and Environmental Change has been opened in Shanghai Normal University since 2005. The course includes three fields. In the first field, it is introduced on which problems and harms have been caused from Global Climate and Environmental Changes according to UNEP Year Books 2003~2013. In the second field, to introduce the Earth System and Climate-Environment Change. In the third part, the hot climate-environmental issues are analyzed and discussed. By joining this course, the students have understanding earth system science and global change. It helped students to set up the view of ecological civilization of the harmonious development between human and nature, inspire students responsibility to protect the earth. During past 8 year, there were 4 to 5 classes opening for different levels in Shanghai Normal University for each year, more than 1000 students joined the study in the course.

Dryland Degradation and Expansion: Implications for Mexican Policies from the Earth System Perspective

2020 ◽  
pp. 1-4
Author(s):  
Gabriel Lopez Porras
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Science Policy ◽  
Land Degradation ◽  
Water Scarcity ◽  
Large Scale ◽  
Earth System ◽  
Sustainable Land Management ◽  
System Perspective ◽  
The Earth

Despite international efforts to stop dryland degradation and expansion, current dryland pathways are predicted to result in large-scale migration, growing poverty and famine, and increasing climate change, land degradation, conflicts and water scarcity. Earth system science has played a key role in analysing dryland problems, and has been even incorporated in global assessments such as the ones made by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. However, policies addressing dryland degradation, like the ‘Mexican programme for the promotion of sustainable land management’, do not embrace an Earth system perspective, so they do not consider the complexity and non-linearity that underlie dryland problems. By exploring how this Mexican programme could integrate the Earth system perspective, this paper discusses how ’Earth system’ policies could better address dryland degradation and expansion in the Anthropocene.

scholarly journals Politics of Strata

2016 ◽  
Vol 34 (2-3) ◽  
pp. 211-231 ◽  
Author(s):  
Nigel Clark
Keyword(s):  
Climate Change ◽  
Political Thought ◽  
Earth Science ◽  
Power Source ◽  
Political Life ◽  
Earth System ◽  
Political Issue ◽  
The Third ◽  
Earth System Governance ◽  
The Earth

Modern western political thought revolves around globality, focusing on the partitioning and the connecting up of the earth’s surface. But climate change and the Anthropocene thesis raise pressing questions about human interchange with the geological and temporal depths of the earth. Drawing on contemporary earth science and the geophilosophy of Deleuze and Guattari, this article explores how geological strata are emerging as provocations for political issue formation. The first section reviews the emergence – and eventual turn away from – concern with ‘revolutions of the earth’ during the 18th- and 19th-century discovery of ‘geohistory’. The second section looks at the subterranean world both as an object of ‘downward’ looking territorial imperatives and as the ultimate power source of all socio-political life. The third section weighs up the prospects of ‘earth system governance’. The paper concludes with some general thoughts about the possibilities of ‘negotiating strata’ in more generative and judicious ways.

scholarly journals Organizing in the Anthropocene

Organization ◽  
2018 ◽  
Vol 25 (4) ◽  
pp. 455-471 ◽  
Author(s):  
Christopher Wright ◽  
Daniel Nyberg ◽  
Lauren Rickards ◽  
James Freund
Keyword(s):  
Social Sciences ◽  
Climate Change ◽  
Exponential Growth ◽  
Life Support ◽  
Earth System ◽  
Special Issue ◽  
Human Relations ◽  
Crucial Issue ◽  
The Earth ◽  
Introductory Article

The functioning of the biosphere and the Earth as a whole is being radically disrupted due to human activities, evident in climate change, toxic pollution and mass species extinction. Financialization and exponential growth in production, consumption and population now threaten our planet’s life-support systems. These profound changes have led Earth System scientists to argue we have now entered a new geological epoch – the Anthropocene. In this introductory article to the Special Issue, we first set out the origins of the Anthropocene and some of the key debates around this concept within the physical and social sciences. We then explore five key organizing narratives that inform current economic, technological, political and cultural understandings of the Anthropocene and link these to the contributions in this Special Issue. We argue that the Anthropocene is the crucial issue for organizational scholars to engage with in order to not only understand on-going anthropogenic problems but also help create alternative forms of organizing based on realistic Earth–human relations.

scholarly journals A Thought Experiment on Sustainable Management of the Earth System

2018 ◽  
Author(s):  
Jobst Heitzig ◽  
Wolfram Barfuss ◽  
Jonathan F. Donges
Keyword(s):  
Climate Change ◽  
Game Theory ◽  
Optimal Control ◽  
Sustainable Management ◽  
Thought Experiment ◽  
Earth System ◽  
The Earth ◽  
The Right ◽  
Safe Operating ◽  
Qualitative Decision

We introduce and analyse a simple formal thought experiment designed to reflect a qualitative decision dilemma humanity might currently face in view of climate change. In it, each generation can choose between just two options, either setting humanity on a pathway to certain high wellbeing after one generation of suffering, or leaving the next generation in the same state as this one with the same options, but facing a continuous risk of permanent collapse. We analyse this abstract setup regarding the question of what the right choice would be both in a rationality-based framework including optimal control, welfare economics and game theory, and by means of other approaches based on the notions of responsibility, safe operating spaces, and sustainability paradigms. Despite the simplicity of the setup, we find a large diversity and disagreement of assessments both between and within these different approaches.

1. Making Sense of Earth’s Politics

2021 ◽  
pp. 3-24
Author(s):  
John S. Dryzek
Keyword(s):  
Climate Change ◽  
Public Attitudes ◽  
Biodiversity Loss ◽  
Earth System ◽  
Environmental Discourse ◽  
Wilderness Preservation ◽  
Making Sense ◽  
The Earth ◽  
Environmental Discourses ◽  
Nature Preservation

This chapter introduces the politics of the Earth, which has featured a large and ever-growing range of concerns, such as pollution, wilderness preservation, population growth, depletion of natural resources, climate change, biodiversity loss, and destabilization of the Earth system. It explains how the issues of Earth’s politics are interlaced with a range of questions about human livelihood, social justice, public attitudes, and proper relation to one other and other entities on the planet. It also discusses the consequences of discourses for politics and policies. The chapter clarifies how environmental issues like ecological limits, nature preservation, climate change, biodiversity, rainforest protection, environmental justice, and pollution are interconnected in all kinds of ways. It develops an environmental discourse analysis approach and shows how this approach will be applied in subsequent chapters, beginning with the positioning of environmental discourses in relation to the long dominant of discourse of industrialism.

Environmental Security and Climate Change

2010 ◽  
Author(s):  
Simon Dalby
Keyword(s):  
Climate Change ◽  
Environmental Change ◽  
Security Policy ◽  
Growth Failure ◽  
Environmental Security ◽  
Peace Building ◽  
Future Climate Change ◽  
Fragile States ◽  
Earth System ◽  
The Earth

Environmental security focuses on the ecological conditions necessary for sustainable development. It encompasses discussions of the relationships between environmental change and conflict as well as the larger global policy issues linking resources and international relations to the necessity for doing both development and security differently. Climate change has become an increasingly important part of the discussion as its consequences have become increasingly clear. What is not at all clear is in what circumstances climate change may turn out to be threat multiplier leading to conflict. Earth system science findings and the recognition of the scale of human transformations of nature in what is understood in the 21st century to be a new geological epoch, the Anthropocene, now require environmental security to be thought of in terms of preventing the worst dangers of fragile states being unable to cope with the stresses caused by rapid environmental change or perhaps the economic disruptions caused by necessary transitions to a post fossil fueled economic system. But so far, at least, this focus on avoiding the worst consequences of future climate change has not displaced traditional policies of energy security that primarily ensure supplies of fossil fuels to power economic growth. Failure to make this transition will lead to further rapid disruptions of climate and add impetus to proposals to artificially intervene in the earth system using geoengineering techniques, which might in turn generate further conflicts from states with different interests in how the earth system is shaped in future. While the Paris Agreement on Climate Change recognized the urgency of tackling climate change, the topic has not become security policy priority for most states, nor yet for the United Nations, despite numerous policy efforts to securitize climate change and instigate emergency responses to deal with the issue. More optimistic interpretations of the future suggest possibilities of using environmental actions to facilitate peace building and a more constructive approach to shaping earth’s future.

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