Mines Repository (Colorado School of Mines)
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Coherence analysis for DAS data
No full textThis contains codes archived at the DOI: https://doi.org/10.5281/zenodo.18408028. It contains extra content, such as Jupyter notebooks showing complete outputs, images created for the associated manuscript, and some of the data needed to reproduce the results.Distributed Acoustic Sensing (DAS) has properties like low maintenance and cost that make it an attractive method for large-scale seismic monitoring. It often produces a lot of data, and there has been a lot of effort recently towards solutions that help manage the problems that arise as a result. The codes provided here use coherence analysis, which works under the assumption that coherent signals are picked up by multiple sensors, to identify regions in these massive datasets that might contain interesting signals.The research that produced this work has been funded by National Science Foundation Grants 2046387 and 2227018, the Air Force Research Laboratory Subaward 62681767-227888 through Stanford University, and the sponsor companies of the Center for Wave Phenomena (CWP
Thomsonite and apophyllite
No full textPhotographed by Ron Wolf.Dull white mass of thomsonite with glassy pale-green apophyllite
Turquoise
No full textPhotographed by Ron Wolf.Irregular chalky blue green turquoise with botryoidal textures
Trilobite – Morocconites malladoides
No full textPhotographed by Ron Wolf.Black fossil trilobite, Atlas mountains, Alnif, Er Rachidia, Morocco
Andorite with zinkenite
No full textPhotographed by Ron Wolf.Dark grey metallic striated andorite with needle-like flecks of brown zinkenite
Malachite (stalactitic)
No full textPhotographed by Ron Wolf.Gnarled green malachite in stalactite form
Allanite
No full textPhotographed by Ron Wolf.Aggregate of dull grey allanite crystals, Mary Kathleen mine, Mt. Isa - Cloncurry area, Queensland, Australia
Fluorite
No full textPhotographed by Ron Wolf.Rough-surfaced purple fluorite crystal, Lake George intrusive center, Park County, Colorado