Elements: Software - Harnessing the InSAR Data Revolution: GMTSAR

该奖项支持开发一种软件工具，旨在降低使用干涉合成孔径雷达（干涉合成孔径雷达）数据的障碍。地震、火山、山体滑坡和冰川等自然过程会导致地球表面变形，现在可以在全球范围内监测到10毫米的精度。 这些表面测量为研究地球内部的过程提供了新的工具。干涉合成孔径雷达是监测地下岩浆运动的一种功能强大且成本低廉的方法，与GPS和地震数据等其他工具结合使用时尤其有用。 干涉合成孔径雷达还可用于了解地下流体运动，例如地下水抽取、地热生产或油气田中的流体运动。目前有各种各样的新SAR卫星正在运行，美国在不久的将来将有一个更有能力的使命。 这些海量数据集需要转化为信息，以促进科学进步，减轻自然灾害，提高地下资源的利用率。该软件名为GMTSAR，将开发强大和可持续的软件，以充分利用卫星生成的数据用于科学和应用。 该项目的主要创新是开发开放和强大的软件，以简化干涉合成孔径雷达数据处理，并能够在最先进的计算机设施上对数千幅合成孔径雷达图像进行日常处理。 软件的公开分发和全球大地测量合成孔径雷达理论基础文件为空间大地测量领域的教育奠定了基础，并确保向不同的受众提供，这项拟议的调查将使用标准软件工程做法加强全球大地测量合成孔径雷达代码，改进大地测量，并使新手和高级用户更容易在各种UNIX平台上使用。 这将通过改进和自动化测试、部分重新设计和简化工作流程、联合国志愿人员组织短期课程、用户反馈以及最终将代码分发和维护转移到国家设施来实现。工作将由博士后研究人员与GMTSAR和GMT开发团队合作，并在XSEDE计划的帮助下进行。预期的成果是提供可持续的、开放的、测地精确的软件，将干涉合成孔径雷达时间序列分析从目前公布的中尺度方法转移到使用新数据流的大空间和时间尺度分析。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The award supports the development of a software tool aimed at lowering the barriers for the use of Interferometric Synthetics Aperture Radar (InSAR) data. Natural processes such as earthquakes, volcanoes, landslides, and glaciers cause deformation of the surface of the earth that can now be monitored to 10 mm precision globally. These surface measurements provide a new tool for investigating processes in the interior of the Earth. InSAR is a powerful and low-cost way to monitor subsurface magma movement and is especially useful when combined with other tools such as GPS and seismic data. InSAR is also used to understand subsurface fluid movement, such as caused by groundwater withdrawal, geothermal production, or in oil and gas fields. A wide variety of new SAR satellites are currently operating and the US will have an even more capable mission in the near future. These massive data sets need to be transformed into information to promote the progress of science, mitigate natural hazards, and enhance use of underground resources. The software, named GMTSAR will develop robust and sustainable software to take full advantage of the satellite generated data for both science and applications. The main innovation of this project is to develop open and robust software to simplify the InSAR data processing and enable routine processing of thousands of SAR images on state-of-the-art computer facilities. Open distribution of software, and the GMTSAR theoretical basis document provide a foundation for education in the field of space geodesy and ensures availability to a diverse audience.This proposed investigation will use standard software engineering practices to harden the GMTSAR code, improve the geodesy, and make it more accessible to novice and advanced users on a wide array of UNIX platforms. This will be achieved through improved and automated testing, partial redesign and simplification of the work flows, UNAVCO short courses, user feedback, and eventual migration of the code distribution and maintenance to a national facility. Work will be performed by a postdoctoral researcher in collaboration with the GMTSAR and GMT development teams and with assistance from the XSEDE program. The expected outcome is to provide sustainable, open, geodetically-accurate software to move InSAR time series analysis from the intermediate-scale methods published today to large spatial and time scale analyses that are becoming possible using the new data streams.This award by the NSF Office of Advanced Cyberinfrastructure is jointly supported by the Cross-Cutting Activities Program of the Division of Earth Sciences within the NSF Directorate for Geosciences, and the EarthCube Program jointly sponsored by the NSF Directorate for Geosciences and the Office of Advanced Cyberinfrastructure.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.