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Spectral reflectance data of rock and soil in southcentral Alaska

Dates

Acquisition
2022
Publication Date

Citation

Schaefer, L.N., and Ellison, S.M., 2023, Spectral reflectance data of rock and soil in southcentral Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/P96VBU9U.

Summary

An ASD FieldSpec 4 Hi-Res NG Spectroradiometer was used to collect the reflectance properties of soil and rock in southcentral Alaska, USA (Figure 1) around the city of Anchorage (Figure 2) and the Prince William Sound (Figure 3). Reflectance is a property of the material being observed, being the ratio of the amount of light leaving a target to the amount of light striking the target. Reflectance is a unitless value from 0 to 1, where a value of 0 indicates that the material absorbs all energy and 1 indicates total reflectance. Additionally, samples were collected from the field and later measured using the spectrometer in the laboratory. Both field and laboratory data were collected in the summer and fall of 2022. The ASD FieldSpec [...]

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Attached Files

Click on title to download individual files attached to this item.

Alaska_DataDictionary.txt
“Alaska data dictionary”
31.04 KB text/plain
Alaska_SampleLocationsandDescriptions.txt
“Alaska sample locations and descriptions”
24.55 KB text/plain
Alaska_SpectraData.txt
“Alaska spectra data”
5.06 MB text/plain
Overview map.jpg
“Figure 1”
thumbnail 5.52 MB image/jpeg
Anchorage samples.jpg
“Figure 2”
thumbnail 808.8 KB image/jpeg
PWS samples.jpg
“Figure 3”
thumbnail 1.11 MB image/jpeg

Purpose

Spectral reflectance data serve to characterize and identify Earth materials. In southcentral Alaska, point spectroscopy can contribute to studies of landslide susceptibility and behavior by describing the spatial distribution, composition, and texture of rock and soil. Point spectroscopy also provides information for interpreting air- or spaceborne imaging spectroscopy data.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P96VBU9U

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