Title
Validation Of Bidirectional Reflectance Models Using The First Scene Acquired By The Chris Sensor Over The Jornada Experimental Range
Abstract
Multi-angular reflectance data over desert grasslands and shrublands in the USDA, ARS Jornada Experimental Range near Las Cruces, New Mexico, were obtained by the Compact High Resolution Imaging Spectrometer flown on the PROBA satellite on August 5, 2002. An experimental satellite-borne sensor, the CHRIS, is one of the few sources of consistent multi-angular reflectance data on kilometer scales, providing up to five looks at a given target within the space of a few minutes. Two images acquired at different sun-target-sensor geometries were used to examine the validity of a simplified geometric-optical model (SGM) of bidirectional reflectance which incorporates a priori, empirical knowledge of the scattering properties of the underlying soil. The model is based on. principles of geometric-optics while providing a mechanism for encapsulating volume scattering effects. It has been subjected to. sensitivity studies and tested using a radiosity-based method, with simulations driven by detailed plant maps and measurements of the optical properties of plants and soils. However, up to this point it has only been tested against multi-angular data acquired. from, the air by tilting a digital multispectral camera; work here using data from the CHRIS sensor extends and corroborates the results presented in the previous studies.
Year
DOI
Venue
2003
10.1109/IGARSS.2003.1295535
IGARSS 2003: IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM, VOLS I - VII, PROCEEDINGS: LEARNING FROM EARTH'S SHAPES AND SIZES
Keywords
DocType
Volume
reflectivity,testing,geometrical optics,spectroscopy,optical scattering,solid modeling,geometric optics,sensitivity,shrublands,layout,agriculture
Conference
7
Issue
ISSN
Citations 
null
null
0
PageRank 
References 
Authors
0.34
1
4
Name
Order
Citations
PageRank
Mark J. Chopping1157.24
Lihong Su262.35
Thomas J. Schmugge3104.98
Albert Rango410115.65