Water quality in Everglades National Park (ENP) and the discharge of fresh water into Florida Bay are influenced by water use and management policies in South Florida. The flow of fresh water through the Everglades into Florida Bay is critical to the well-being of the South Florida Ecosystem (SFE). Restoration activities by Federal agencies are aimed at mitigating the effect of increased demand for water, farming, and flood control practices in South Florida on the SFE. Assessing the effectiveness of restoration efforts is difficult because of inaccessibility of much of this area. Airborne geophysical methods provide a means of rapidly and economically monitoring large areas where ground access is difficult.

In our study of the Everglades several electromagnetic (EM) methods are being used to map the location of the freshwater/saltwater interface. These methods include helicopter electromagnetics (HEM), borehole induction logging, and time-domain electromagnetic (TEM) soundings.

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