Phase 2 of upgrades to the continuous GPS network on Sierra Negra volcano, Galapagos

这笔赠款支持升级加拉帕戈斯山脉内格拉火山的连续全球定位系统(CGPS)网络。最初的网络是通过之前的NSF/EAR支持提供资金的。升级将包括购置和实地部署四个新的双频全球定位系统接收器和无线电调制解调器。此次升级将用大大增强机载内存的双频接收器完全取代Sierra Negra网络中剩余的单频接收器。升级后的CGPS网络将允许对世界上最活跃的玄武岩火山之一进行持续观测。这个火山系统的动力学提供了一个非同寻常的机会，可以更多地了解岩浆侵入和地表变形之间的相互作用。塞拉利昂内格拉网络收集的所有全球定位系统数据将继续近乎实时地通过联安援助团数据系统免费获取。***

0930045ChadwickThis grant supports upgrade of a continuous-GPS (CGPS) network on Sierra Negra volcano in the Galapagos. The original network was funded through previous NSF/EAR support. The upgrade will include acquisition and field deployment of four new dual frequency GPS receivers and radio modems. The upgrade will completely replace remaining single frequency receivers in the Sierra Negra network with dual frequency receivers with greatly enhanced on board memory. The upgraded CGPS network will allow for continued observations of one of the most active basaltic volcanoes in the world. The dynamics of this volcanic system allows for an extraordinary opportunity to learn more about the interplay between magma intrusion and surface deformation. All of the GPS data collected by the Sierra Negra network will continue to be freely accessible through the UNAVCO data system in near real time. ***