SuperMAG: High Time-resolution Data Enabling Global UltraLow Frequency (ULF) Studies

这项研究将开发并提供一种新的SuperMAG项目能力，用于组织、存储和传播来自世界范围内磁通门和感应线圈磁强计阵列的高时间分辨率数据，用于磁层超低频波和亚暴相关的调查。SuperMAG是一个由组织和国家机构组成的全球合作组织，目前运行着300个地面磁力计。本研究工作将收集和整理高时间分辨率数据，编写软件包对高时间分辨率磁通门和感应线圈磁强计数据进行预处理和处理，并在SuperMAG网站上向社区发布。由此产生的数据产品将通过方便地访问高时间分辨率测量（5秒）、衍生数据产品、绘图和其他工具，使全球ULF活动的研究成为可能。新的数据产品的可用性将为学生提供新的研究机会。该项目还将促进教育和公众宣传活动，这已经是SuperMAG的关键组成部分。这项研究将通过将其地面磁强计数据从1分钟的节奏扩展到更高的磁通门和感应线圈阵列的采样率（5秒），并通过开发额外的数据产品，使这些高节奏数据中的ULF波和亚风暴相关变化的观测更容易被更广泛的地球空间科学界访问和理解，从而增强当前SuperMAG的能力。高时间分辨率磁强计数据集将加强对亚暴相关过程的研究，因为Pi1b波活动（频率高于Pi2，但也与夜侧磁场双极化有关）的数据可用，以及辐射带增强和损失过程的研究，因为ULF波的全范围可用。特别包括在中磁层和内磁层产生的电磁离子回旋波。高时间分辨率数据的实施，以及对SuperMAG新增的卫星脚点，将促进卫星界和地面界在ULF波等新科学领域的合作。该项目将促进教育和公众宣传（EPO）活动，这已经是SuperMAG的关键组成部分。该奖项反映了美国国家科学基金会的法定使命，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。

This research will develop and provide a new SuperMAG project capability for organizing, storing, and disseminating high time resolution data from world-wide arrays of fluxgate and induction coil magnetometer for magnetospheric ultralow frequency (ULF) waves and substorm-related investigations. SuperMAG is a worldwide collaboration of organizations and national agencies that currently operate 300 ground-based magnetometers. This research effort will gather and organize high-time resolution data, write software packages to pre-process and process high time resolution fluxgate and induction coil magnetometers data, and disseminate them to the community on the SuperMAG website. The resulting data product will enable studies of global ULF activity by allowing easy access to high time resolution measurement (5sec), derived data products, plots and other tools. Availability of the new data product will provide new opportunities of research to students. The project will also foster education and public outreach activities, which are already a key component of SuperMAG.This research will enhance the current SuperMAG capabilities by expanding its ground-based magnetometer data holdings from 1-minute cadence to higher sampling rates ( 5 sec) of both fluxgate and induction coil arrays and by developing additional data products that will make observations of ULF waves and substorm-related variations in these high-cadence data more easily accessed and understood by the wider geospace science community. The high time-resolution magnetometer dataset will enhance studies of substorm-related processes because of the availability of data on Pi1b wave activity (higher frequency than Pi2, but also generated in association with nightside magnetic field dipolarizations), and studies of radiation belt enhancement and loss processes because of the availability of the full range of ULF waves, including in particular electromagnetic ion cyclotron (EMIC) waves generated in the middle and inner magnetosphere. The implementation of high time-resolution data, along with the new addition of satellite footpoints to SuperMAG, will foster collaborations between the satellite community and the ground community for new scientific areas such as ULF waves. The project will foster education and public outreach (EPO) activities, which are already a key component of SuperMAG.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.