A Comprehensive Compilation of Spectral Libraries for Petroleum Hydrocarbons (PHC) Encompassing VNIR-SWIR-TIR Ranges

Area of Science:

• Geoscience
• Remote Sensing
• Spectroscopy

Background:

• Optical sensors analyze multispectral and hyperspectral imagery for surface material mapping.
• Classification algorithms compare pixel spectra to reference spectral libraries.
• Accurate spectral libraries are crucial for reliable remote detection of materials.

Purpose of the Study:

• To introduce a comprehensive compilation of spectral libraries for petroleum hydrocarbons (PHC).
• To support the scientific community and industry in characterizing PHC field samples.
• To facilitate the development of classification algorithms for spectral image analysis.

Main Methods:

• Collected spectral data for various PHC forms (crude oils, mixtures, oil-on-water, emulsions).
• Acquired spectra in the visible, near, shortwave IR (VNIR-SWIR), and thermal IR (TIR) ranges.
• Compiled reference spectral libraries under controlled laboratory conditions.

Main Results:

• Developed and compiled extensive spectral libraries for diverse petroleum hydrocarbon types.
• Covered spectral data across VNIR-SWIR (0.35-2.5 µm) and TIR (3-15 µm) ranges.
• Ensured libraries are openly accessible for community use.

Conclusions:

• The new spectral libraries enhance the remote detection and mapping of petroleum hydrocarbons.
• These resources are vital for developing robust classification algorithms for various platforms.
• Open access promotes wider application in environmental monitoring and industry.