TY - GEN
T1 - Use of laboratory hyperspectral reflectance data of soils for predicting their diurnal albedo dynamics accomodating their roughness
AU - Cierniewski, Jerzy
AU - Ceglarek, Jakub
AU - Karnieli, Arnon
AU - Krolewicz, Slawomir
AU - Kazmierowski, Cezary
AU - Zagajewski, Bogdan
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/6/28
Y1 - 2016/6/28
N2 - The objective of this study was to assess the relationship between the hyperspectral reflectance of soils and its albedo, measured under various roughness conditions. 108 soil surfaces measurements were conducted in Poland and Israel. Each surface was characterized by its diurnal albedo variation in the field as well as its reflectance spectra that was obtained in the laboratory. The best fit to the model was achieved by postprocessing manipulation of the spectra, namely second derivate transformation. Using stepwise elimination process, four spectral wavelengths, as well as roughness index, were selected for modeling. The resulted models allow predicting the albedo of a soil at specific roughness for any solar zenithal angle, provided that hyperspectral reflectance data is available.
AB - The objective of this study was to assess the relationship between the hyperspectral reflectance of soils and its albedo, measured under various roughness conditions. 108 soil surfaces measurements were conducted in Poland and Israel. Each surface was characterized by its diurnal albedo variation in the field as well as its reflectance spectra that was obtained in the laboratory. The best fit to the model was achieved by postprocessing manipulation of the spectra, namely second derivate transformation. Using stepwise elimination process, four spectral wavelengths, as well as roughness index, were selected for modeling. The resulted models allow predicting the albedo of a soil at specific roughness for any solar zenithal angle, provided that hyperspectral reflectance data is available.
KW - Albedo
KW - Bare soil
KW - Hyperspectral reflectance
KW - Roughness
UR - http://www.scopus.com/inward/record.url?scp=85037539691&partnerID=8YFLogxK
U2 - 10.1109/WHISPERS.2016.8071743
DO - 10.1109/WHISPERS.2016.8071743
M3 - Conference contribution
AN - SCOPUS:85037539691
T3 - Workshop on Hyperspectral Image and Signal Processing, Evolution in Remote Sensing
BT - 2016 8th Workshop on Hyperspectral Image and Signal Processing
PB - Institute of Electrical and Electronics Engineers
T2 - 8th Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2016
Y2 - 21 August 2016 through 24 August 2016
ER -