Processed Continuous Resistivity Point Data from Cape Cod National Seashore, May 17-20, 2004

Continuous resistivity profiling (CRP) surveys were conducted at Cape Cod National Seashore in 2004 and 2006 in order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean. Coastal resource managers here and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. CRP is used to measure electrical resistivity of sediments, a property that is sensitive to differences in salinity of submarine ground water. The 2004 and 2006 surveys used floating resistivity streamers of 100 m and 50 m respectively. The depth penetration of the streamers is approximately 20% of the streamer length which translates to approximately 20-25 m with the 100 m streamer and 12-14 m with the 50 m streamer. These data were processed using AGI's EarthImager 2D software.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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identifier USGS:160a227f-710b-4b07-aae5-d2ecbe18b066
metadata_type geospatial
modified 20200908
old-spatial -70.036194, 41.669400, -69.919618, 42.022037
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash c2d9c51fc748b73173d909b81b9ee49a9b53e06a
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-70.036194, 41.669400], [-70.036194, 42.022037], [ -69.919618, 42.022037], [ -69.919618, 41.669400], [-70.036194, 41.669400]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • atlantic-ocean
  • cape-cod
  • cape-cod-national-seashore
  • ckan
  • cmgp
  • coastal-and-marine-geology-program
  • continuous-resistivity-profiling
  • crp
  • environment
  • geo
  • geoscientificinformation
  • geospatial-datasets
  • geoss
  • ground-water
  • inlandwaters
  • location
  • massachusetts
  • national
  • nauset-marsh
  • navigation
  • north-america
  • oceans
  • of-2006-1169
  • open-file-report
  • pleasant-bay
  • point
  • salt-pond
  • shapefile
  • submarine-ground-water
  • u-s-geological-survey
  • united-states
  • usgs
  • usgs-160a227f-710b-4b07-aae5-d2ecbe18b066
  • whsc-field-activity-serial-number-04014
  • woods-hole-science-center
isopen False
license_id notspecified
license_title License not specified
maintainer John F. Bratton
maintainer_email jbratton@usgs.gov
metadata_created 2025-11-19T14:18:21.197610
metadata_modified 2025-11-19T14:18:21.197615
notes Continuous resistivity profiling (CRP) surveys were conducted at Cape Cod National Seashore in 2004 and 2006 in order to test hypotheses about groundwater flow under and into estuaries and the Atlantic Ocean. Coastal resource managers here and elsewhere are concerned about nutrients that are entering coastal waters via submarine groundwater discharge, which are contributing to eutrophication and harmful algal blooms. CRP is used to measure electrical resistivity of sediments, a property that is sensitive to differences in salinity of submarine ground water. The 2004 and 2006 surveys used floating resistivity streamers of 100 m and 50 m respectively. The depth penetration of the streamers is approximately 20% of the streamer length which translates to approximately 20-25 m with the 100 m streamer and 12-14 m with the 50 m streamer. These data were processed using AGI's EarthImager 2D software.
num_resources 2
num_tags 37
title Processed Continuous Resistivity Point Data from Cape Cod National Seashore, May 17-20, 2004