The Global DAS Month of February 2023

IF 2.6 3区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

Seismological Research Letters Pub Date : 2023-11-27 DOI:10.1785/0220230180

A. Wuestefeld, Z. Spica, K. Aderhold, Hsin-Hua Huang, Kuo-Fong Ma, V. Lai, Meghan Miller, L. Urmantseva, Daniel Zapf, Daniel C. Bowden, Pascal Edme, T. Kiers, Antonio P. Rinaldi, Katinka Tuinstra, Camille Jestin, Sergio Diaz-Meza, P. Jousset, C. Wollin, A. Ugalde, Sandra Ruiz Barajas, B. Gaite, G. Currenti, M. Prestifilippo, Eiichiro Araki, Takashi Tonegawa, S. D. de Ridder, A. Nowacki, Fabian Lindner, M. Schoenball, Christoph Wetter, Hong-Hu Zhu, Alan F. Baird, R. A. Rørstadbotnen, Jonathan B. Ajo‐Franklin, Yuanyuan Ma, R. Abbott, Kathleen M. Hodgkinson, R. Porritt, Christian Stanciu, Agatha Podrasky, David Hill, B. Biondi, Siyuan Yuan, Bin Luo, Sergei Nikitin, J. P. Morten, V. Dumitru, Werner Lienhart, Erin Cunningham, Herbert Wang

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Abstract

During February 2023, a total of 32 individual distributed acoustic sensing (DAS) systems acted jointly as a global seismic monitoring network. The aim of this Global DAS Month campaign was to coordinate a diverse network of organizations, instruments, and file formats to gain knowledge and move toward the next generation of earthquake monitoring networks. During this campaign, 156 earthquakes of magnitude 5 or larger were reported by the U.S. Geological Survey and contributors shared data for 60 min after each event’s origin time. Participating systems represent a variety of manufacturers, a range of recording parameters, and varying cable emplacement settings (e.g., shallow burial, borehole, subaqueous, and dark fiber). Monitored cable lengths vary between 152 and 120,129 m, with channel spacing between 1 and 49 m. The data has a total size of 6.8 TB, and are available for free download. Organizing and executing the Global DAS Month has produced a unique dataset for further exploration and highlighted areas of further development for the seismological community to address.

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2023 年 2 月全球 DAS 月

2023 年 2 月期间，共有 32 个独立的分布式声学传感 (DAS) 系统共同组成了全球地震监测网络。此次 "全球分布式声学传感月 "活动的目的是协调不同组织、仪器和文件格式的网络，以获取知识并向下一代地震监测网络迈进。在这次活动中，美国地质调查局报告了 156 次 5 级或 5 级以上的地震，参与者在每次地震发生后的 60 分钟内共享数据。参与系统代表了不同的制造商、不同的记录参数和不同的电缆铺设环境（如浅埋、钻孔、水下和暗光纤）。监测的电缆长度从 152 米到 120,129 米不等，信道间距从 1 米到 49 米不等。数据总大小为 6.8 TB，可供免费下载。全球 DAS 月的组织和实施产生了一个独特的数据集，可供进一步探索，并突出了地震学界需要进一步发展的领域。

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