Study of Sea Level Change in the Northeastern U.S. Using GPS & Tide Gauge Data with Applications to Global Sea Level Change


       Changes in sea level can reveal much about our environment. But what if the devices used to measure that level are being influenced by such effects as crustal motion? To determine if this is the case, we are using GPS data to compute vertical velocities at tide gauge locations. Coupling this information with height data should generate a more accurate rate of sea level rise, particularly in areas where rates differ significantly from the global average.
  • The principle objective of this study is to use Global Positioning System (GPS), absolute gravity, and tide gauge measurements to improve global data related to sea level change.
  • In addition, the information from this project will improve the current models of glacial isostatic adjustment (GIA).

CSR LogoLast modified June 07, 1999
Dr. Steve Nerem (
Dr. Mark Schenewerk (
Dr. Tonie vanDam (

Kwan-Dong Park (CSR graduate student)(


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