Retrieval of land surface parameters using passive microwave measurements at 6-18 GHz

1999 ◽  
Vol 37 (1) ◽  
pp. 79-93 ◽  
Author(s):  
E.G. Njoku ◽  
Li Li
Keyword(s):  
Land Surface ◽  
Passive Microwave ◽  
Microwave Measurements ◽  
Surface Parameters ◽  
Land Surface Parameters

Retrieving land surface parameters over Sahel from ERS wind scatterometer data

2001 ◽  
Author(s):  
Lionel Jarlan ◽  
Pierre Mazzega ◽  
Eric Mougin ◽  
Pierre L. Frison
Keyword(s):  
Land Surface ◽  
Surface Parameters ◽  
Land Surface Parameters

A review of the application of BRDF models to infer land cover parameters at regional and global scales

2001 ◽  
Vol 25 (4) ◽  
pp. 483-511 ◽  
Author(s):  
Gareth Roberts
Keyword(s):  
Land Surface ◽  
Lower Boundary ◽  
Terrestrial Ecosystems ◽  
Remotely Sensed Data ◽  
Area Index ◽  
Lower Boundary Condition ◽  
Surface Parameters ◽  
Case Examples ◽  
Global Circulation Models ◽  
Land Surface Parameters

This paper presents a review of the application of Bi-directional Reflectance Distribution Function (BRDF) models in the inference of land surface parameters at regional and global scales using remotely sensed data. Information on land surface parameters, such as Leaf Area Index (LAI), fraction of Absorbed Photosynthetically Active Radiation (fAPAR), aerodynamic surface roughness and albedo, are valuable for understanding the transfer of energy and mass between terrestrial ecosystems and the atmosphere (e.g., carbon, nitrogen and methane cycling) and for ingestion into the lower boundary condition of global circulation models (GCM)s. Conventional techniques for acquiring information on land surface parameters do not account for or utilize the directional nature of surface reflectance. This paper reviews empirical, semi-empirical and, to a lesser extent, physical BRDF models that describe the surface BRDF. In each case examples are given of their application in inferring land surface parameters. The review concludes by discussing the future prospects of BRDF modelling using spaceborne sensors.

Sign in / Sign up

Export Citation Format

Share Document