Open AccessSensor radiance physical model for rugged heterogeneous surfaces in the 3-14 μm region.
Author(s) -
Sandrine Pallotta,
Xavier Briottet,
Christophe Miesch,
Yann H. Kerr
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.002130
Subject(s) - radiance , remote sensing , signal (programming language) , component (thermodynamics) , optics , environmental science , infrared , computer science , physics , geology , thermodynamics , programming language
We present a physical model describing the radiance acquired by an infrared sensor over a rugged heterogeneous surface. This model predicts the radiance seen over complex landscapes like urban areas and provides an accurate analysis of the signal, as each component is available at ground and sensor level. Plus, it allows data comparison from different instruments. Two representative cases (natural and urban) are analysed to show the composition and the construction of the sensor signal and to highlight the importance of having a 3D model, especially for rugged surfaces where environment weights in the overall spectral domain.