1992-1997 Epoch GPS Geodesy in the North Andes

该项目为美国科学家提供了一个机会， 继续与哥伦比亚、哥斯达黎加、 厄瓜多尔、德国、巴拿马、瑞士和委内瑞拉 中美洲和南美洲（CASA）网络的测量。 这 是一个获取精密GPS重复基线野外项目 北安第斯45个地点之间的测量 裕度 观察结果将包括：1）短基线 哥伦比亚海沟（400公里）和中美洲海沟（540公里） 在那里我们可以直接测量快速俯冲速率。 2)一项调查 横跨南加勒比变形带的网络将测试 加勒比海洋壳俯冲的预测 在北安第斯山脉下面。 3)2000 - 2001年期间的基线观察结果 活动的玛尔塔、罗梅罗和东安第斯断层系统测试 预测的剪切应变模型为北安第斯微板块。

This project represents an opportunity for US scientists to continue cooperation with scientists from Colombia, Costa Rica, Ecuador, Germany, Panama, Switzerland, and Venezuela in the epoch measurements in the Central and South America (CASA) network. This is a field program to obtain precise repeat GPS baseline measurements between 45 sites in the North Andean convergent margin. The observations will include: 1) short baselines across the Colombia trench (400 km) and the Middle America trench (540 km) where we can directly measure rapid subduction rates. 2) A survey network across the South Caribbean deformed belt will test predictions of aseismic subduction of Caribbean oceanic crust beneath the North Andes. 3) Baseline observations across the active Santa Marta, Romeral, and East Andean fault systems test predicted shear strain models for the North Andean microplate.