Greenland Ice Sheet Monitoring Network (GLISN) Operations

格陵兰冰盖监测网（GLISN）是一个宽带、多用途的地震学网络，通过选定的大地测量观测得到加强，其设计能力使研究人员能够了解目前在北极发生的变化，并具有必要的操作特征，以便随着了解的提高而对这些变化作出反应。GLISN是通过国际合作建立的，在过去四年中，10个国家协调努力发展了目前的32个观测站观测网络。该项目将继续进行该网络六个关键站的业务，以及该网络的数据质量控制和数据管理。它还将提高远程站的遥测能力，以最大限度地利用数据，减少数据延迟，并降低物流成本。IRIS在管理和协调国际GLISN工作方面继续发挥领导作用，将确保从全部32个站点的网络继续返回高质量数据。来自GLISN网络的观测将改进对格陵兰岛地下地球结构的估计，这对于可靠地估计、解释和预测冰质量、海平面和地应力状态的变化至关重要。这些观测结果还将极大地改进对冰盖内部及其崩解边缘变形的分析，这些变形是由离散的冰损失事件、融水排水、裂缝作用和基底滑动等过程造成的。地震分析提供了关于冰川动力学和冰下地质的独特信息，补充了其他遥感和原位观测。GLISN的科学和推广将利用并加强IRIS联盟及其社区开展的推广和教育项目。

The Greenland Ice Sheet Monitoring Network (GLISN) is a broadband, multi-use seismological network, enhanced by selected geodetic observations, designed with the capability to allow researchers to understand the changes currently occurring in the Arctic, and with the operational characteristics necessary to enable response to those changes as understanding improves. GLISN was established through an international collaboration, with 10 nations coordinating their efforts to develop the current 32-station observing network during the last four years. This project will continue operations of six key stations of the network, as well as data quality control and data-management for the network. It will also improve the telemetry capability at remote stations to maximize the scientific utility of the data, reduce data latency, and reduce logistics costs. Continued leadership by IRIS in the management and coordination of the International GLISN effort will ensure continued return of high-quality data from the full 32-station network. Observations from the GLISN network will allow improved estimation of the Earth structure under Greenland, critical for reliable estimation, interpretation, and prediction of changes in ice mass, sea level, and the crustal stress state. These observations will also allow greatly improved analysis of deformation within the ice sheet and at its calving margins due to processes including discrete ice-loss events, melt-water drainage, crevassing, and basal sliding. Seismic analysis provides unique information about glacier dynamics and sub-glacial geology, complementing other remote-sensing and in-situ observations. GLISN science and outreach will leverage and enhance outreach and education programs undertaken by the IRIS Consortium and its community.