Facility Support: AfricaArray

设施支持：AfricaArray

• 批准号: 0446647
• 负责人: Andrew Nyblade
• 金额: $ 19.15万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-05-15 至 2009-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0446647&HistoricalAwards=false
• 关键词: Facility; Support; AfricaArray

0446647NybladeSupport from this grant will partially underwrite the salary of an in-country technician and provide for some operational expenses and oversight costs associated with the development of the AfricaArray seismic network. AfricaArray is a new pan-African training and research initiative in geophysics that emphasizes seismology and has been set up and is being partially supported by the University of Witwatersrand, the South African Council for Geoscience (CG), Penn State University and private industrial funds. The seismic network will consist of 22 new broadband stations that will complement 17 existing stations (not all broadband) in seven countries in southern and eastern Africa. Many of the existing short-period stations will be upgraded to broadband instruments. The AfricaArray technician will be responsible for network operations outside of South Africa. The CG will handle operation and maintenance needs within South Africa. The scientific goals of AfricaArray (funded through a companion Geophysics project EAR-044032) are to understand the relationship between deep mantle and upper mantle slow seismic anomalies associated with the African Superplume. It is hoped that data from this network will allow exploration of plausible chemical and dynamic causes of the Superplume seismic anomaly and to further elucidate the subsurface structures associated with the east African Rift zone. The current 17 station seismic network on the African continents is too broadly distributed to image these structures with high resolution. An expanded AfricaArray network will allow more detailed investigations of lower crustal and mantle structures associated with mantle upwelling, surface uplift, rifting and volcanism. AfricaArray also hopes to address a long standing problem on the developing African continent, namely, scientific literacy. This program should further the training of geoscience students in techniques and data analysis that could position them for domestic careers in government, industry and education. All of the AfricaArray data will eventually be archived within the IRIS Data Management System (DMS). ***

这笔赠款的支持将部分支付一名国内技术人员的工资，并提供与非洲阵列地震网络开发有关的一些业务费用和监督费用。 非洲阵列是一个新的泛非地球物理学培训和研究举措，重点是地震学，已由威特沃特斯兰德大学、南非地球科学理事会、宾夕法尼亚州立大学和私营工业基金设立并提供部分支助。 地震网络将包括22个新的宽带台站，补充南部和东部非洲7个国家的17个现有台站（并非全部是宽带台站）。 许多现有的短周期台站将升级为宽带仪器。 AfricaArray技术人员将负责南非以外的网络运营。 CG将处理南非境内的运营和维护需求。 AfricaArray（通过地球物理学配套项目ESTA-044032供资）的科学目标是了解与非洲超级地幔柱有关的深地幔和上地幔慢地震异常之间的关系。 希望该网络的数据将有助于探索超级地幔柱地震异常的可能化学和动力原因，并进一步阐明与东非裂谷带有关的地下结构。 目前非洲大陆上的17个台站地震网络分布太广，无法对这些结构进行高分辨率成像。 一个扩大的非洲阵列网络将能够更详细地调查与地幔上涌、地表隆起、裂谷和火山活动有关的下地壳和地幔结构。 AfricaArray还希望解决发展中非洲大陆长期存在的问题，即科学素养。 该计划将进一步培训地球科学专业的学生进行技术和数据分析，使他们能够在政府、工业和教育领域从事国内职业。 所有AfricaArray数据最终将在IRIS数据管理系统（DMS）中存档。 ***