The Harp Environmental Lake Monitoring Ark

The Harp Environmental Lake Monitoring Ark (THELMA for short) was deployed in the summer of 2010 on Harp Lake. The most recent data are available in the plots below. We thank the Harp Lake Association for their input into THELMA's design and for their support over the first years of operation. Please note that these data are provided "as is" as we have not yet verified their accuracy.

THELMA is part of the Global Lake Ecological Observatory Network. GLEON is a world-wide grassroots network of people, institutions, programs, and data dedicated to understanding, predicting, and communicating the impact of natural and human influences on lakes.

A new and improved real-time monitoring data page is coming back soon! Thanks for your patience and apologies for the incovenience!