Century of data shows sea-level rise shifting tides in Delaware, Chesapeake bays



Lakes Environmental


Lakes Environmental Research Inc., Receives Landmark Patent

For the first time, an international team has found evidence of how sea-level rise already is affecting high and low tides in both the Chesapeake and Delaware bays, two large estuaries of the eastern United States.

The team combined a computer model with 100 years of observations to tease out the fact that global sea-level rise is increasing the tidal range, or the distance between the high and low tides, in many areas throughout each bay.

Tides, or the rising and falling of the ocean’s surface, occur on regular intervals and result from numerous factors, the biggest of which is the gravitational pull from the sun and moon. For centuries, people have documented and predicted the daily high and low tides because they can impact ocean navigation. Tides can also affect ocean life, flooding risk, fishing, the weather, and some energy sources such as hydroelectric power.

Continue reading at Pennsylvania State University

Image via NOAA


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