Paper Info
Title
The importance of early morning local overpass times for BRDF retrieval, modeling of spectral reflectance and fAPAR estimation
Abstract
Blueprints for near-future moderate resolution satellite-borne sensor systems such as the VIIRS (Visible Infrared Imaging Radiometer Suite) sensor on the National Polar-orbiting Operational Environmental Satellite System (NPOESS) do not include plans to ensure that land surface observations are made from an early morning (AM) orbit (07:30-08:30 local time) as well as in the afternoon (PM), and current spaceborne sensors designed to sample the bidirectional reflectance distribution function (BRDF) achieve this by off-nadir viewing with a small range of solar zenith angles (SZA). This may limit the utility of current and future systems in important Earth observation applications such as estimating the fraction of absorbed photosynthetically-active radiation (fAPAR). The lack of observations at 50° < SZA < 70° may only be partly offset by the 09:30 orbit foreseen for EUMETSAT's METOP satellite, to carry a third generation Advanced Very High Resolution Radiometer (AVHRR). Here existing AVHRR data are used to examine the likely impact of inverting models with observations at a small range of Sun angles.
Year
DOI
Venue
2002
10.1109/IGARSS.2002.1026513
IGARSS
Keywords
Field
DocType
geophysical techniques,vegetation mapping,apar,brdf,ir,spectral reflectance,sun angle,bidirectional reflectance distribution function,early morning local overpass,fapar,fraction of absorbed photosynthetically active radiation,geophysical measurement technique,infrared,land surface,remote sensing,visible,reflectivity,local time,distribution functions,earth observation,image resolution,radiometry
Meteorology,Bidirectional reflectance distribution function,Satellite,Computer science,Remote sensing,Advanced very-high-resolution radiometer,Radiometry,Earth observation,NPOESS,Visible Infrared Imaging Radiometer Suite,Zenith
Conference
Volume
ISSN
Citations 
4
2153-6996
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
M. J. Chopping131.38
Albert Rango210115.65
Gomez-Landesa, E.300.34