Title :
BRDF modelling of AVHRR data validated with POLDER data
Author_Institution :
Div. of Atmos. Res., CSIRO, Aspendale, Vic., Australia
Abstract :
Modelling the effects of the surface bidirectional reflectance distribution function (BRDF) on AVHRR data improves the consistency of time series of land surface measurements produced from AVHRR and is necessary to retrieve surface albedo from AVHRR. An approach based on fitting a BRDF model to AVHRR measurements within a sliding window has been tested. Several BRDF models have been compared for their performance in normalising the measurements to a standard view-illumination geometry, and the choice of window length investigated, at Australian sites spanning a wide range of land cover. This paper highlights the suitability of POLDER measurements for the evaluation of the performance of BRDF modelling of AVHRR data at the top of the atmosphere
Keywords :
terrain mapping; AVHRR data; Australia; BRDF modelling; POLDER data; land cover; land surface measurements; sliding window; surface albedo; surface bidirectional reflectance distribution function; view-illumination geometry; window lengt; Atmospheric measurements; Bidirectional control; Distribution functions; Information retrieval; Land surface; Length measurement; Solid modeling; Surface fitting; Testing; Time measurement;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978156
