Please use this identifier to cite or link to this item: http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/3626
Title: Radarsat backscattering from an agricultural scene
Keywords: remote sensing
radar
land use
farmland
Issue Date: 30-May-2013
Publisher: Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
Description: Orbital remote sensing in the microwave electromagnetic region has been presented as an important tool for agriculture monitoring. The satellite systems in operation have almost all-weather capability and high spatial resolution, which are features appropriated for agriculture. However, for full exploration of these data, an understanding of the relationships between the characteristics of each system and agricultural targets is necessary. This paper describes the behavior of backscattering coefficient (sigma°) derived from calibrated data of Radarsat images from an agricultural area. It is shown that in a dispersion diagram of sigma° there are three main regions in which most of the fields can be classified. The first one is characterized by low backscattering values, with pastures and bare soils; the second one has intermediate backscattering coefficients and comprises well grown crops mainly; and a third one, with high backscattering coefficients, in which there are fields with strong structures causing a kind of double bounce effect. The results of this research indicate that the use of Radarsat images is optimized when a multitemporal analysis is done making the best use of the agricultural calendar and of the dynamics of different cultures.
URI: http://koha.mediu.edu.my:8181/jspui/handle/123456789/3626
Other Identifiers: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000500013
http://www.doaj.org/doaj?func=openurl&genre=article&issn=0100204X&date=2001&volume=36&issue=5&spage=823
Appears in Collections:Agriculture and Food Sciences

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.