Title :
Evaluation of Near-UV/blue Aerosol Optical Thickness Retrieval from Airborne Hyperspectral Imagery
Author :
Seidel, Felix C. ; Nieke, Jens ; Schläpfer, Daniel ; Itten, Klaus I. ; Bowles, Jeffrey H.
Author_Institution :
Remote Sensing Labs., Zurich Univ., Zurich
fDate :
July 31 2006-Aug. 4 2006
Abstract :
An aerosol retrieval algorithm is currently under development in scope of the upcoming APEX hyperspectral imager. It will be able to close the gap between global remote sensing and one-dimensional in situ measurements of atmospheric particles. This paper presents a feasibility study of the proposed APEX aerosol retrieval approach for hyperspectral imagery with high spatial resolution. The extraction of a sample aerosol optical thickness is done by fitting radiation transfer model results to measured at-sensor radiances at two near-UV/blue bands (394 and 404 nm) from the PHILLS imager. The PHILLS hyperspectral data are used to simulate the APEX Visible Near- Infrared detector and comprehend a dark surface reference target to avoid most uncertainties from the surface reflection contribution.
Keywords :
aerosols; atmospheric optics; atmospheric techniques; radiative transfer; remote sensing; APEX hyperspectral imager; PHILLS hyperspectral data; PHILLS imager; aerosol retrieval algorithm; airborne hyperspectral imagery; at sensor radiance measurement; blue aerosol optical thickness retrieval; near UV aerosol optical thickness retrieval; radiation transfer model; wavelength 394 nm; wavelength 404 nm; Aerosols; Atmospheric measurements; Hyperspectral imaging; Hyperspectral sensors; Image retrieval; Optical sensors; Particle measurements; Remote sensing; Spatial resolution; Surface fitting;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2006. IGARSS 2006. IEEE International Conference on
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-9510-7
DOI :
10.1109/IGARSS.2006.581
