About Ellis Pond:
The Secchi disk is one of the most widely utilized - and certainly one of the least expensive - pieces of equipment in the tool box of lake scientists. For many years (approaching half a century for some lakes), the Secchi has been used to measure water clarity in several hundred Maine lakes - data collected by hundreds of volunteers (citizen lake scientists), as well as professionals.
If you have never used a Secchi disk, you can now try your hand at measuring water clarity virtually - using the Lake Stewards of Maine’s Secchi Simulator. You don’t have to be a lake monitor to use this Simulator. Simply click on the “Try it out” button to get started. Good luck! And if you would like to join LSM’s volunteers and measure water clarity in your lake, please contact Lake Stewards of Maine.
Records of ice-out dates for 18 Maine lakes extend back into the 1800s, with the longest data set being from Sebago lake (first ice-out record: 1807). In the case of Auburn Lake, ice-out records begin in 1836. In the recent LSM newsletter, Lloyd Irland writes about “Maine Lake Ice-Out Dates and Ice-Free Periods: What’s the Trend?” For Auburn Lake, Irland shows that there has been a “striking increase of 26 ice-free days between the averages of 1952-1971, and the 1998-2017” (see figure, below). Discover more about ice-out trends for Maine lakes HERE.
Most water quality data on this website have been collected by Lake Stewards of Maine’s volunteer citizen lake scientists, many of whom have been monitoring lakes for multiple decades. Here is Bob’s story.
Click here to view current water quality conditions on a representative sample of Maine lakes during summer, or view which lakes have experienced ice-cover in the fall and ice-out in the spring.
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