Maine’s new Sea Level Rise Ticker displays quick, easy to read information on short-term (1993-present, if data is available) sea level rise trends and ranking of monthly water levels for Maine’s five tide gauge stations (from southwest to northeast). 1993 is used as the starting year in order to compare with global short-term trends from available satellite data compiled by the University of Colorado’s Sea Level Research Group. Short-term sea level rise data is calculated by using NOAA average monthly values to calculate an annual average. A linear regression from the annual averages provides the rate of sea level rise. This allows for the calculation of a rate of sea level rise, in both millimeters per year (mm/yr) and feet per century (ft/century). The ticker also shows how the last month’s water level ranks in terms of all data from that month since the start of data collection.

Short Term Trend


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water level since

Learn More with the Maine Sea Level Rise Dashboard

Video Tutorial

Frequently Asked Questions

The frequently asked questions provide more information about how the data elements were created, what they should be used for, usage limitations and general information on sea level rise in Maine.

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More Help

Contact the Maine Geological Survey with questions at: