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The original time series and cross power data were stored in Binary format on 3.5" disks until further conversion was needed. To convert the time series and cross power data to a format that can be used for modeling, the original binary files were converted to ASCII format using Basic 4.0 code and associated subroutines (see Magnetotelluric_Original-Code_Binary-to-Ascii.txt and Magnetotelluric_Original-Code_Binary-to-Ascii-Subroutines.txt attached to the binary data ScienceBase item). The DaR project used these converted ASCII format files to create the EDI format files included in this data release. The binary data are considered the original data for the magnetotelluric survey, therefore, they are provided with...
Tags: California,
EDI,
Electrical Data Interchange,
Map Service,
Monterey County, All tags...
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service,
Parkfield,
SPUD,
San Andreas Fault,
San Andreas Fault System,
Searchable Product Depository,
United States,
electromagnetic surveying,
faulting (geologic),
geophysics,
geoscientificInformation,
legacy data,
magnetotelluric sounding,
magnetotelluric surveying, Fewer tags
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Corescan© Hyperspectral Core Imager Mark III (HCI-III) system data were acquired for hand samples, and subsequent billets made from the hand samples, collected during the U.S. Geological Survey (USGS) 2014, 2015, and 2016 field seasons in the Nabesna area of the eastern Alaska Range. This area contains exposed porphyry deposits and hand samples were collected throughout the region in support of the HyMap imaging spectrometer survey (https://doi.org/10.5066/F7DN435W) (Kokaly and others, 2017a). The HCI-III system consists of three different components. The first is an imaging spectrometer which collects reflectance data with a spatial resolution of approximately 500 nanometers (nm) for 514 spectral channels covering...
Tags: Alaska,
Alaska,
Alaska Range,
Bond Creek,
Canada, All tags...
ENVI,
Environment for Visualizing Images,
MRP,
Mineral Resources Program,
Nabesna,
Nabesna A-2 quadrangle,
Nabesna A-4 quadrangle,
Nabesna B-4 quadrangle,
Nikonda Creek,
Nutzotin Mountains,
Orange Hill,
SWIR,
VNIR,
Valdez-Cordova County,
Wrangell Mountains,
Wrangell–Saint Elias National Preserve,
Yukon Territory,
economy,
geoscientificInformation,
hyperspectral imaging,
imaging spectroscopy,
infrared imaging,
mineral resources,
mineralogy,
remote sensing,
shortwave infrared,
spectroscopy,
visible-near infrared, Fewer tags
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The U.S. Geological Survey (USGS) has been engaged in airborne electromagnetics (AEM) since the 1970s, playing a role in the development of early acquisition systems, developing calibration methods, refining standards for data acquisition, improving data processing, modeling, and interpretation methods, and expanding the range of AEM applications. However, USGS AEM survey visibility and data accessibility has not advanced as rapidly as our use of the technique. This data release catalogs AEM surveys in the United States that have contributed to studies under USGS programs including Water, Geologic Mapping, Minerals, Energy, Environmental Health, Ecosystems, Hazards, and Climate. This dataset contains locations for...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Alabama,
Arizona,
Arkansas,
California,
Colorado, All tags...
Connecticut,
Delaware,
Florida,
Geophysics,
Georgia,
Idaho,
Illinois,
Indiana,
Iowa,
Kansas,
Kentucky,
Louisiana,
Maine,
Maryland,
Massachusetts,
Michigan,
Minnesota,
Mississippi,
Missouri,
Montana,
Nebraska,
Nevada,
New Hampshire,
New Jersey,
New Mexico,
New York,
North Carolina,
North Dakota,
Ohio,
Oklahoma,
Oregon,
Pennsylvania,
Rhode Island,
South Carolina,
South Dakota,
Tennessee,
Texas,
USGS Science Data Catalog (SDC),
United States,
Utah,
Vermont,
Virginia,
Washington,
West Virginia,
Wisconsin,
Wyoming,
electromagnetic surveying,
frequency-domain,
geophysics,
geoscientificInformation,
geospatial datasets,
resistivity,
time-domain, Fewer tags
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This publication provides digital flight line data for a high-resolution horizontal magnetic gradient and radiometric survey over an area of southeast Missouri and western Illinois. The survey represents the first airborne geophysical survey conducted as part of the U.S. Geological Survey (USGS) Earth Mapping Resource Initiative (Earth MRI) effort (Day, 2019). Earth MRI is a cooperative effort between the USGS, the Association of American State Geologists, and other Federal, State, and private sector organizations to improve our knowledge of the geologic framework of the United States. Data for this survey were collected by Terraquest, Ltd. under contract with the USGS using a fixed wing aircraft with magnetometers...
Categories: Data;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Earth Mapping Resources Initiative,
EarthMRI,
GGGSC,
Geology, Geophysics, and Geochemistry Science Center,
Illinois, All tags...
Ironton,
MRP,
Mineral Resources Program,
Missouri,
USGS Science Data Catalog (SDC),
aeromagnetic surveying,
aeroradiometric surveying,
airborne geophysical survey,
economy,
geophysics,
geoscientificInformation,
geospatial datasets,
horizontal magnetic gradiometry,
none,
potassium,
thorium,
uranium, Fewer tags
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Reflectance data from HyMap™ were processed using the Material Identification and Characterization Algorithm (MICA), a module of the USGS PRISM (Processing Routines in IDL for Spectroscopic Measurements) software (Kokaly, 2011), programmed in Interactive Data Language (IDL; Harris Geospatial Solutions, Broomfield, Colorado). The HyMap reflectance data are provided and described in this data release. MICA identifies the spectrally predominant mineral(s) in each pixel of imaging spectrometer data by comparing continuum-removed spectral features in the pixel’s reflectance spectrum to continuum-removed absorption features in reference spectra of minerals, vegetation, water, and other materials. Linear continuum removal...
Categories: Data;
Types: Downloadable,
GeoTIFF,
Map Service,
Raster;
Tags: Alaska,
Alaska,
Alaska Range,
Bond Creek,
Canada, All tags...
ENVI,
Environment for Visualizing Images,
HyMap,
MRP,
Mineral Resources Program,
Nabesna,
Nabesna A-2 quadrangle,
Nabesna A-4 quadrangle,
Nabesna B-4 quadrangle,
Nikonda Creek,
Nutzotin Mountains,
Orange Hill,
SWIR,
VNIR,
Valdez-Cordova,
Wrangell Mountains,
Wrangell–Saint Elias National Preserve,
Yukon Territory,
economy,
geoscientificInformation,
hyperspectral imaging,
imageryBaseMapsEarthCover,
imaging spectroscopy,
infrared imaging,
mineral resources,
mineralogy,
remote sensing,
shortwave infrared,
spectroscopy,
visible-near infrared, Fewer tags
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