Airborne geophysical survey: Delaware Fall Zone

Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. In the earlier days of surveying, the only way to represent this data was to generate an analog map with contour lines. This dataset is a representation of the digitized contour lines either by following the lines or by choosing the intersection of the contour and flight-line to create a value of the magnetic field. The values presented are latitude, longitude, and map magnetic-field values.

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20220725164314
identifier USGS:c9597851-24f3-439d-9188-a4eb69f2676d
metadata_type geospatial
modified 20201110
old-spatial {"type": "Polygon", "coordinates": [[[-75.908531188965, 39.582450866699], [-75.908531188965, 39.986663818359], [ -75.377113342285, 39.986663818359], [ -75.377113342285, 39.582450866699], [-75.908531188965, 39.582450866699]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 56301d320b155999578c1e17a39eda6953baa418
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-75.908531188965, 39.582450866699], [-75.908531188965, 39.986663818359], [ -75.377113342285, 39.986663818359], [ -75.377113342285, 39.582450866699], [-75.908531188965, 39.582450866699]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • aeromagnetic-surveying
  • amerigeo
  • amerigeoss
  • ckan
  • f10003-new-castle
  • f24015-cecil
  • f34015-gloucester
  • f34033-salem
  • f42029-chester
  • f42045-delaware
  • field-monitoring-stations
  • geo
  • geophysics
  • geospatial-datasets
  • geoss
  • magnetic-field-earth
  • national
  • north-america
  • united-states
  • usgs-c9597851-24f3-439d-9188-a4eb69f2676d
isopen False
license_id notspecified
license_title License not specified
maintainer Peter N. Schweitzer
maintainer_email pschweitzer@usgs.gov
metadata_created 2025-11-21T18:34:53.688663
metadata_modified 2025-11-21T18:34:53.688667
notes Aeromagnetic data were collected along flight lines by instruments in an aircraft that recorded magnetic-field values and locations. In the earlier days of surveying, the only way to represent this data was to generate an analog map with contour lines. This dataset is a representation of the digitized contour lines either by following the lines or by choosing the intersection of the contour and flight-line to create a value of the magnetic field. The values presented are latitude, longitude, and map magnetic-field values.
num_resources 1
num_tags 20
title Airborne geophysical survey: Delaware Fall Zone