• SGD Home
• Research Projects
• All Projects
• Biscayne Bay, FL
• Crescent Beach, FL
• Dor Beach, Israel
• Florida Bay, FL
• Indian River Lagoon, FL
• Loxahatchee River, FL
• Malibu Lagoon, CA
• Puget Sound, WA
• Santa Barbara, CA
• Suwannee River, FL
• Tampa Bay, FL
• Methods and Tools
• Electrical Resistivity
• EM Seepage Meters
• Radon
• The Radium Quartet
• Publications
• 1992 - Present
• USGS Sound Waves
• Links
• Collaborators
• Contacts
• Media Coverage
• Organizations
• Pacific Coastal & Marine Science Center (PCMSC)
• PCMSC Home Page

An Autonomous, Electromagnetic Seepage Meter to Study Coastal Groundwater/Surface-water Exchange

USGS Open File Report 2004-1369

"An autonomous, electromagnetic seepage meter to study coastal groundwater/surface-water exchange" is a four-page full-color pamphlet detailing the use of a "state-of-the-art electromagnetic flow meter that enables rapid, autonomous, bi-directional measurements of fluid exchange rates across the sediment/water interface." See the whole publication online, or download a printable copy (1 MB PDF) from: sofia.usgs.gov/publications/ofr/2004-1369/.

Five-day time series of (A) bottom water ²²²Rn activities (dpm/L), (B) bidirectional electromagnetic (EM) seepage meter results (cm/d); the zero discharge line is shown for reference, and (C) bottom water conductivities (mS/cm) collected from the top of a EM seepage meter dome. The reference line in (C) denotes the mean conductivity (40.7 mS/cm) of the bottom waters.