Acquisition of a JR-6A Spinner Magnetometer

购买 JR-6A 旋转磁力计

• 批准号: 2207720
• 负责人: Joseph Meert
• 金额: $ 7.84万
• 依托单位: University of Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-15 至 2023-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2207720&HistoricalAwards=false
• 关键词: Acquisition; JR; 6A; Spinner; Magnetometer

The Earth’s magnetic field is a fundamental force surrounding our planet and has been for at least 3.5 billion years. The magnetic field provides a shield around the planet protecting us from incoming energetic particles from space. Paleomagnetism, or the study of Earth’s magnetic field as recorded in rocks, artifacts, or sediments, is a powerful tool that can be used study an array of important topics in the geosciences. Knowledge of past paleogeography, resulting from paleomagnetic research, aids in exploration in natural resources critical to society. In addition, magnetic signatures in plants and soils can provide information about the level of pollutants in the environment. All these studies require the use of the sensitive spinner magnetometer funded in this proposal to be able to identify and quantify the magnetic signature in rocks and other natural materials. In the era of supercomputers and artificial intelligence, models of plate motion, climate change, and the behavior of the geodynamo inside the Earth are increasingly complex. These models should be data driven (ground truthing), which requires a direct record from the rocks or sediments. To generate these data, the laboratory space must be maintained, efficient, and modern. This proposal allows us to upgrade and modernize an aging Molspin spinner magnetometer that was commissioned in 1996. An updated JR-6a magnetometer will allow us to maintain high productivity given its flexibility, sensitivity, and modern computer interface. More generally, the work that would be supported by the acquisition of a new magnetometer addresses science priority question one, “How is Earth’s internal magnetic field generated?”, released in the National Academies decadal report Earth-in-Time for NSF-EAR.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.

地球磁场是地球周围的一种基本力量，至少存在了 35 亿年。磁场为地球提供了一个屏障，保护我们免受来自太空的高能粒子的影响，或者说是对地球磁场的研究记录。岩石、文物或沉积物中的地质学是一种强大的工具，可用于研究地球科学中的一系列重要主题。古地磁研究产生的过去古地理知识有助于勘探对地球至关重要的自然资源。此外，植物和土壤中的磁特征可以提供有关环境中污染物水平的信息，所有这些研究都需要使用本提案中的灵敏旋转磁铁资助的仪表来识别和量化植物和土壤中的磁特征。在超级计算机和人工智能时代，板块运动、气候变化和地球内部的地球发电机的行为模型越来越复杂，这些模型应该由数据驱动（地面实况）。岩石的直接记录为了生成这些数据，实验室空间必须保持高效和现代化。该提案使我们能够对 1996 年投入使用的老化 Molspin 旋转磁力计进行升级和现代化。更新后的 JR-6a 磁力计将使我们能够保持高水平。考虑到其灵活性、灵敏度和现代计算机接口，更普遍的是，购买新型磁力计所支持的工作解决了科学优先问题一“地球内部磁场是如何产生的？”，该问题发表在《国家》​​杂志上。科学院十年报告 NSF-EAR 的地球实时报告。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的影响审查标准进行评估，被认为值得支持。