Remote sensing measurements in creating thematic spectral library

Denitsa Borisova; Doyno Petkov; Roumen Nedkov; Hristo Nikolov; Ventzeslav Dimitrov; Margarita Metodieva Goranova; Daniela Avetisyan; Kameliya Radeva

doi:10.1117/12.2326005

6 August 2018 Remote sensing measurements in creating thematic spectral library

Denitsa Borisova, Doyno Petkov, Roumen Nedkov, Hristo Nikolov, Ventzeslav Dimitrov, Margarita Metodieva Goranova, Daniela Avetisyan, Kameliya Radeva

Author Affiliations +

Proceedings Volume 10773, Sixth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2018); 107730D (2018) https://doi.org/10.1117/12.2326005
Event: Sixth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2018), 2018, Paphos, Cyprus

Abstract

In Earth observations the reference spectra of well-described objects are required for better object-oriented interpretation of remotely sensed data from laboratory, field, airborne, and satellite sensors. For this purpose measurements of spectra using laboratory and field spectrometers are performed. The acquired spectra are used in creating a thematic spectral library. The used spectral instruments work in the wavelengths (0.4 to 2.5 microns) covering the spectral ranges from the visible /VIS/ to the shortwave infrared /SWIR/. Two different spectrometers are used to measure spectra included in the library: (1) Thematically oriented multichannel spectrometer covering the spectral range 0.4 to 0.9 microns and (2) high resolution NIRQuest spectrometer covering the range from 0.9 to 2.5 microns, both models of Ocean Optics Inc. Spectrometric measurements of representative samples of minerals, rocks, related soils, vegetation, and their natural mixtures are made in laboratory and field conditions. In some cases, samples were purified, so that the unique spectral characteristics of the studied objects could be related to their typical structure. The relations between the spectra and the structures are important for interpreting remotely sensed data acquired in the field or from an air- or space-borne platform. In some cases for making easy wide use of the spectra in the library the obtained spectra have to resample to selected broadband multispectral sensors for example those based on the satellites Landsat and Sentinel. The obtained spectral data with the metadata and additional information are planned for including in files for better interpretation of images with different spatial resolution.

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Denitsa Borisova, Doyno Petkov, Roumen Nedkov, Hristo Nikolov, Ventzeslav Dimitrov, Margarita Metodieva Goranova, Daniela Avetisyan, and Kameliya Radeva "Remote sensing measurements in creating thematic spectral library", Proc. SPIE 10773, Sixth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2018), 107730D (6 August 2018); https://doi.org/10.1117/12.2326005

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KEYWORDS

Spectroscopy

Spectrometers

Remote sensing

Soil science

Minerals

Aerospace engineering

Reflectivity

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