Modernization of Existing Long-Base Strainmeters at Pinyon Flat and Durmid Hill

来自这笔赠款的资金用于对加州皮农平原天文台(PFO)和杜米德山(DH)现有的长基线激光应变仪进行现代化改造。将增加新的激光、真空、温度硬件和控制软件组件，以使这些现有的激光应变仪与作为板块边界观测站项目一部分安装的新仪器按照相同的标准运行。升级将允许现场自动化和远程诊断监测，消除了多次现场访问的需要，从而降低了长期运营和维护成本，并提高了数据质量。PFO和DH型激光应变仪以极高的灵敏度测量加利福尼亚州南部太平洋/北美板块边界上随时间变化的形变，升级后的仪器补充了作为EarthScope/PBO的一部分安装的GPS、钻孔和激光应变仪，以努力了解大陆变形和活动板块边缘的地震过程的动力学。升级后的仪器的原始数据和数据产品将可通过网络免费获取。来自PFO和DH的长时间序列数据提供了一个有价值的基线，可以并将与来自板块边界观测站(PBO)的新数据进行比较。

Funds from this grant support modernization of the existing long-baseline laser strainmeters at Pinon Flat Observatory (PFO) and Durmid Hill (DH), California. New laser, vacuum, temperature hardware, and control-software components will be added to make these existing laser strainmeter instruments operate to the same standards as new instruments being installed as part of the Plate Boundary Observatory project. The upgrades will allow for onsite automation and remote diagnostic monitoring, eliminating the need for many onsite visits and therefore reducing long term operating and maintenance costs and improving data quality. PFO and DH laser strainmeters measure of time-dependent deformation along the Pacific/North-American plate boundary in southern California with extreme sensitivity and the upgraded instruments complement GPS, borehole and laser strainmeter instruments being installed as part of EarthScope/PBO in an effort to understand the dynamics of continental deformation and earthquake processes at an active plate margin. Raw data and data products from the upgraded instruments will be made freely accessible via the web. The long time series Data from PFO and DH provide a valuable baseline, against which new data from the Plate Boundary Observatory (PBO) can and will be compared.