Abstract | ||
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A set of ten RADARSAT-2 images acquired in fully polarimetric mode over a test site with rice fields in Seville, Spain, has been analyzed to extract the main features of the C-band radar backscatter as a function of rice phenology. After observing the evolutions versus phenology of different polarimetric observables and explaining their behavior in terms of scattering mechanisms present in the scene, a simple retrieval approach has been proposed. This algorithm is based on three polarimetric observables and provides estimates from a set of four relevant intervals of phenological stages. The validation against ground data, carried out at parcel level for a set of six stands and up to nine dates per stand, provides a 96% rate of coincidence. Moreover, an equivalent compact-pol retrieval algorithm has been also proposed and validated, providing the same performance at parcel level. In all cases, the inversion is carried out by exploiting a single satellite acquisition, without any other auxiliary information. |
Year | DOI | Venue |
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2014 | 10.1109/TGRS.2013.2268319 | Geoscience and Remote Sensing, IEEE Transactions |
Keywords | Field | DocType |
crops,phenology,radar imaging,remote sensing by radar,vegetation mapping,C-band radar backscatter,RADARSAT-2 images,Seville,Spain,auxiliary information,equivalent compact-pol retrieval algorithm,fully polarimetric mode,ground data,parcel level,phenological stages,phenology retrieval approach,polarimetric observables,polarimetric response,rice fields,rice phenology,scattering mechanisms,single satellite acquisition,test site,Agriculture,phenology,polarimetry,rice,synthetic aperture radar (SAR) | Satellite,C band,Radar imaging,Observable,Polarimetry,Inversion (meteorology),Remote sensing,Coincidence,Phenology,Mathematics | Journal |
Volume | Issue | ISSN |
52 | 5 | 0196-2892 |
Citations | PageRank | References |
36 | 1.59 | 11 |
Authors | ||
7 |
Name | Order | Citations | PageRank |
---|---|---|---|
Juan M. Lopez-Sanchez | 1 | 303 | 30.87 |
Fernando Vicente-Guijalba | 2 | 74 | 6.93 |
J. David Ballester-Berman | 3 | 180 | 19.10 |
Shane R. Cloude | 4 | 180 | 21.15 |
Lopez-Sanchez, J.M. | 5 | 36 | 1.59 |
Vicente-Guijalba, F. | 6 | 36 | 1.59 |
Ballester-Berman, J.D. | 7 | 90 | 8.75 |