The SWATH‐D experiment involved the deployment of a dense temporary broadband seismic network in the Eastern Alps. Its primary purpose was enhanced seismic imaging of the crust and crust–mantle transition, as well as improved constraints on local event locations and focal mechanisms in a complex part of the Alpine orogen. The study region is a key area of the Alps, where European crust in the north is juxtaposed and partially interwoven with Adriatic crust in the south, and a significant jump in the Moho depth was observed by the 2002 TRANSALP north–south profile. Here, a flip in subduction polarity has been suggested to occur. This dense network encompasses 163 stations and complements the larger‐scale sparser AlpArray seismic network. The nominal station spacing in SWATH‐D is 15 km in a high alpine, yet densely populated and industrialized region. We present here the challenges resulting from operating a large broadband network under these conditions and summarize how we addressed them, including the way we planned, deployed, maintained, and operated the stations in the field. Finally, we present some recommendations based on our experiences.

中文翻译：

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东阿尔卑斯山的SWATH‐D地震台网

SWATH-D实验涉及在东阿尔卑斯山部署密集的临时宽带地震网络。其主要目的是增强对地壳和地壳－幔幔过渡的地震成像，以及改善对高山造山带复杂部分的局部事件位置和震源机制的约束。该研究区域是阿尔卑斯山的一个关键区域，北部的欧洲地壳与南部的亚得里亚海地壳并列并部分交织，2002 TRANSALP的南北剖面观测到莫霍面深度有明显的跃升。在此，已经提出了俯冲极性的翻转。这个密集的网络包含163个站点，是对较大规模的稀疏AlpArray地震网络的补充。在高高山地区，SWATH‐D的标称站距为15 km，但人口稠密且工业化的地区。我们在此介绍在这些条件下操作大型宽带网络所带来的挑战，并总结我们如何解决这些挑战，包括我们在野外站点的计划，部署，维护和操作方式。最后，我们根据经验提出一些建议。