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Open-File Report

Open-File Report: explore 136 source-linked works published from 1954 to 2026, with original documents and citations.

This collection is a preview while coverage and quality are evaluated.

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Includes records with this source-supplied label or an explicit phrase match in their metadata. Matches indicate a mention, not proof that a paper uses a method or tests a material. Source versions are consolidated by DOI.

Sources: usgs. Collection updated 2026-09-15. Counts describe this index, not the complete source archives.

Satellite imagery of the north-central Gulf of Mexico, June 1993-May 1997

This CD contains imagery collected by the Advanced Very High Resolution Radiometer (AVHRR) on the NOAA polar-orbiting weather satellites. The AVHRR provides almost daily coverage of a site at a resolution of approximately 1 km. The data types included are sea surface temperature (SST), water reflectance (REF), and a false-color infrared overview (FCI).

Alabama, Florida, Louisiana, Mississippi

A multi-channel digital telemetry system for low frequency geophysical data

An inexpensive general purpose digital telemetry system for collection of low frequency geophysical data from U.S. Geological Survey instruments (eg. tilt, strain, gravity, creep, water level, radon, magnetic field, resistivity, telluric current, temperature, etc.) has been designed and built. This system provides data for a more general interactive data acquisition, retrieval and analysis system. The field stations are self-contained, battery operated and housed in weather proof containers. Each accepts up to 15 analog data inputs in the range of -5 to +5 volts. The dynamic range is 70db. The units transmit information as FSK (Frequency Shift Keyed) tones onto either a phone line or radio link with up to 150 transmitters sharing one line. The average power consumption is 0.06 nR watts where n is the 1 number of input channels transmitted and R is the sample rate in minutes -1 . The central receiver-recorder unit accepts and decodes the FSK tones and converts, formats and records the digital data together with time information and station identification on IBM combatible magnetic tape. The digital data are also converted and recorded in analog form for visual monitoring.

Open-File Report
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WorkPublishedSource identifierSource
Archive of boomer subbottom data collected during USGS cruise ATSV99045, northern North Carolina, October 9-27, 19992002ofr01380usgs
Preliminary description of a model of ground-water flow and ground-water/surface-water interaction for predevelopment , 1941-50, and 1950-97 development conditions in part of the Republican River Basin, Nebraska, Kansas, and Colorado as of April 26, 20022002ofr02175usgs
Java programs for using Newmark's method to model slope performance during earthquakes2002ofr02201usgs
Archive of chirp subbottom data collected during USGS cruise ATSV99045, northern North Carolina, October 9-27, 19992002ofr02215usgs
"Report upon the extinct Vertebrata obtained in New Mexico by parties of the expedition of 1874," by Edward D. Cope; a digital archive with multimedia annotations2002ofr02270usgs
Municipal GIS database of El Salvador: Volume 2, Jiquilisco, El Salvador2002ofr02307Busgs
Municipal GIS database of El Salvador: Volume 3, La Palma, El Salvador2002ofr02307Cusgs
Digital atlas of Lake Texoma2002ofr02428usgs
Lithochronologic units and mineral deposits of the Appalachian Orogen from Maine to Alabama2001ofr01136usgs
Yosemite quadrangle, central Sierra Nevada, California — Analytic data2001ofr01252usgs
Geologic map of the Ontonagon and part of the Wakefield 30' X 60' quadrangles, Michigan; a digital representation of Map I-2499 (1995)2001ofr0188usgs
Archive of sidescan-sonar data collected off the North Carolina coast during USGS cruise ATSV99045, 7-27 October, 19992000ofr00177usgs
Digital geologic map of Loudoun County, Virginia1999ofr99150usgs
Satellite imagery of the north-central Gulf of Mexico, June 1993-May 19971998ofr98484usgs
Freshwater mussel studies in the Ohio River Islands National Wildlife Refuge1994ofr94644usgs
Inflation and cooling data from pahoehoe sheet flows on Kilauea volcano1993ofr93342Busgs
Seismic refraction survey of the pre-Cretaceous basement surface near the inner edge of the coastal plain in Stafford and King George Counties, Virginia1977ofr77480usgs
A multi-channel digital telemetry system for low frequency geophysical data1977ofr77490usgs

These are bibliographic comparisons, not experimental rankings. Follow the original document for methods and conditions.