Spectral Library Files (SPL)

Long name Spectral Library
Short name SPL
File extensions .spl
Note: The data file of USGS Spectral Library Version 7 does not have a file name extension.

Spectral Library (SPL) format can be read by the GDB library. SPL format is used for U.S. Geological Survey (USGS) Spectroscopy Lab.

SPL records are in a fixed format at 1536 bytes each. Record-number counting starts at zero. Binary data is real numbers and big-endian integers in IEEE1 format. Each record can contain a variety of information relative to the schema.

For more information about the SPL format, visit: speclab.cr.usgs.gov/specpr-format

For information about USGS Spectral Library Version 7 and data, visit: speclab.cr.usgs.gov

1 Institute of Electrical and Electronics Engineers

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