W.-J.-D. VAN LEEUWEN (3), A.-R. HUETE (3), J. DUNCAN (4), J. FRANKLIN (4) 
(1) University of Maryland, Geography Department, College Park, USA 
(2) Météo France/CNRM, Toulouse, France. (3) Department of Soil and Water Science, 
University of Arizona, Tuckson, USA. (4) Department of Geography, 
San Diego State University, San diego, USA 611 
Polarized reflectance angular signatures from surface and airborne measurements 
F.-M. BREON (1) and D. TANRE (2). (1) Laboratoire de Modélisation du Climat 
et de l’Environnement, CEA/D SM/LM CE, Gif-sur-Yvette, France. 
(2) Laboratoire d’Optique Atmosphérique, USTL, Villeneuve-d’Ascq, France) 619 
Test of surface bidirectional reflectance models with surface measurements : results and 
consequences for the use of remotely sensed data 
F. CABOT (1), J. QI (2), M.-S. MORAN (2) and G. DEDIEU (1). (l)LERTS, Toulouse, France. 
(2) USDA/ARS, USWCL, Broadway, Phoenix, USA) 627 
A geometrical model of soil bidirectional reflectance in the visible and near-infrared range 
J. CIERNIEWSKI (Adam Mickiewicz University, Institute of Physical Geography, Fredry 1, 
Poznan, Poland), M. VERBRUGGHE (INRA Bioclimatologie, Montfavet, France) 635 
Combining directional and high spectral resolution information 
from optical remote sensing data for crop growth monitoring 
J.G.P.W. CLEVERS and H.J.C. VAN LEEUWEN (Wageningen Agricultural University, 
Dept, of Landsurveying and Remote Sensing, Wageningen, The Netherlands) 643 
The estimation of LAI and the fraction of photosynthetically active radiation 
absorbed by chlorotic canopies using semi-empirical models : a sensitivity analysis 
J.-A. EASTWOOD (Environmental Information Centre, Institute of Terrestrial Ecology, 
Monks Wood Abbots Ripton, Cambridgeshire, United Kingdom) 651 
Characterization of different canopies from POLDER polarization measurements 
during La Crau 1991 Campaign 
J.-L. DEUZE (1), R. SANTER, P. LECOMTE (1) (Laboratoire d’Optique Atmosphérique, LOA) 
(I) Université des Sciences et Techniques de Lille, Villeneuve-d’Ascq, France. 
Université du Littoral, Station Marine de Wimereux, Wimereux, France 659 
Ocean color remote sensing using polarization properties of reflected sunlight 
R. FROUIN (1), E. POULIQUEN (J), F.-M. BREON (2). (1) Scripps Institution of Oceanography, 
La Jolla, California, USA. (2) Laboratoire de Modélisation du Climat 
et de l’Environnement, CEA/DSM, Gif-sur-Yvette, France 665 
Polarization properties of snow and clouds as observed by the airborne POLDER Instrument 
P. GOLOUB (1), M. HERMAN (1), J.-L. DEUZE, R. FROUIN (2). (1) Laboratoire d’Optique 
Atmosphérique, Université de Lille, Villeneuve-d’Ascq, France. (2) Scripps Institution 
of Oceanography, University of California, San diego, La Jolla, USA 675 
Adaptation of a bidirectional reflectance model including the hot-spot to an optically thin canopy 
J. IAQUINTA et B. PINTY (Université Blaise-Pascal, Laboratoire de Météorologie 
Physique, URA 267/CNRS, Aubière, France) 683 
A multispectral canopy reflectance model 
A. KUUSK (Institute of Astrophysics and Atmospheric Physics, 
Estonian Academy of Sciences, Toravere, Estonia) 691 
Surface reflectance angular signatures from airborne POLDER data 
M. LEROY (1), F.-M. BREON (2) and F. FONTANARI (1). (I) Laboratoire d’Etudes 
et de Recherche en Télédétection Spatiale, CNES/LERTS, Toulouse, France. 
(2) Laboratoire de Modélisation du Climat et de l’Environnement, 
CEA/DSM/LMCE, Gif-sur-Yvette, France 699 
Influence of the sky radiance distribution on various formulations of the earth surface albedo 
P. LEWIS and M.-J. BARNSLEY (Remote Sensing Unit, Department of Geography, 
University College London, London, England) 707 
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