Sea Level and Vertical Tectonics on the American Pacific Coast: A Demonstration of Feasibility

美国太平洋海岸的海平面和垂直构造：可行性论证

• 批准号: 9506596
• 负责人: Roger Bilham
• 金额: $ 2万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9506596&HistoricalAwards=false
• 关键词: Sea; Level; Vertical; Tectonics; American

9506596 Bilham The PIs will monitor the vertical motion of four tide gauge sites along the East Coast of the United States and Canada. They will also make absolute gravity surveys at the four tide gauge sites. Vertical tectonic motions observed with GPS and absolute gravity when combined with relative sea level measurements from the tide gauge will provide an accurate determination of the relative roles of crustal motion and absolute sea level rise in the region. The research will examine whether the vertical systematic errors in GPS and absolute gravity are sufficiently low at coastal sites to permit better than 3 mm agreement between the two systems. Long term averages given suitable corrections for the local effects suggest that they may agree to 1 mm. The proposed research aims to quantify their true agreement. ****

小行星9506596 这些验潮站会监察沿着美国和加拿大东岸的四个验潮站的垂直运动。 他们亦会在四个验潮站进行绝对重力测量。 用全球定位系统和绝对重力观测到的垂直构造运动，再加上验潮仪的相对海平面测量值，将能准确确定该区域地壳运动和绝对海平面上升的相对作用。 这项研究将审查在沿海地点，全球定位系统和绝对重力的垂直系统误差是否足够低，使两个系统之间的一致性优于3毫米。 长期的平均值给予适当的修正的局部影响表明，他们可能同意1毫米。拟议的研究旨在量化他们真正的协议。 ****