INTRODUCTION

LOCATION MAP

Figure 1 Everglades National Park, Florida Site Characterization - 616

A DIGHEM^V resistivity survey was flown for The U.S. Geological Survey from December 9 to December 14, 1994 over 398 square miles of the Florida Everglades. The survey area can be located on map sheet Miami 25080-A1 (see Figure 1).

Survey coverage consisted of approximately 1718 line-miles, including tie lines. Flight lines were flown in an azimuthal direction of 0^o with a line separation of 1/4 mile (400 metres).

The survey employed the DIGHEM^V electromagnetic system. Ancillary equipment consisted of a radar altimeter, video camera, analog and digital recorders and an electronic navigation system. Details on the survey equipment are given in Section 2. Section 2 also provides details on the data channels, their respective sensitivities, and the navigation/flight path recovery procedure.