Title :
Estimation of coniferous forest characteristics from passive microwave measurements
Author :
Wigneron, Jean-Pierre ; Calvet, Jean-Christophe ; Guyon, Dominique ; Courrier, Gaston ; Grojean, Olivier
Author_Institution :
Bioclimatologie, INRA, Montfavet, France
Abstract :
The results of the Portos-94 aircraft measurement campaign over coniferous stands of the Landes forest (France) are presented. PORTOS is a five-frequency microwave radiometer developed by CNES and Matra Marconi Space. The objective of the study is to analyse the interest of passive microwave radiometry to estimate land surface characteristics of the forest canopy. The frequency channels of PORTOS are identical or very close to the channels of the planned ESA microwave radiometer MIMR. Therefore, the present study contributes to better assess the potential applications of MIMR over forest areas. The results, based on a principal component analysis, are in good agreement with results obtained from active microwave measurements. They show the interest of “short” wavelengths (5, 10.65, 23.8 and 36.5 GHz) for discriminating between categories of coniferous stands
Keywords :
forestry; microwave measurement; radiometry; remote sensing; 5 to 36.5 GHz; EHF; ESA microwave radiometer MIMR; France; Landes forest; Portos-94 aircraft measurement campaign; SHF; canopy; coniferous forest characteristics; land surface characteristics; microwave radiometer; passive microwave measurements; principal component analysis; Backscatter; Biomass; Biosensors; Frequency measurement; Land surface; Microwave measurements; Microwave radiometry; Radar measurements; Radar scattering; Remote monitoring;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1995. IGARSS '95. 'Quantitative Remote Sensing for Science and Applications', International
Conference_Location :
Firenze
Print_ISBN :
0-7803-2567-2
DOI :
10.1109/IGARSS.1995.520568
