Mostrar el registro sencillo del ítem Vierinen, Juha Tveito, Torbjørn Gustavsson, Björn Kesaraju, Saiveena Milla, Marco 2018-08-06T18:12:46Z 2018-08-06T18:12:46Z 2017-11
dc.identifier.govdoc index-oti2018
dc.identifier.govdoc index-oti2018
dc.identifier.issn 00191035
dc.description En: Icarus, v. 297, (November 2017), p. 179-188. es_ES
dc.description.abstract "We present new range-Doppler images of the Moon using 6-mwavelength. The radar images were obtained using the Jicamarca Radio Observatory 49.92  MHz radar. The observations were performed using circular polarization on transmit and two orthogonal linear polarizations on receive, allowing scattering images to be obtained with the polarization matched to the transmitted wave (polarized), and at a polarization orthogonal to the transmitted wave (depolarized). Due to the long wavelength that penetrates efficiently into the subsurface of the Moon, the radar images are especially useful for studies of subsurface composition. Two antenna interferometry on receive was used to remove the Doppler north-south ambiguity. The images have approximately 10  km resolution in range 20  km resolution in Doppler, allowing many large scale features, including maria, terrae, and impact craters to be identified. Strong depolarized return is observed from relatively new larger impact craters with large breccia and shallow regolith. Terrae regions with less lossy surface material also appear brighter in both depolarized and polarized images. A large region in the area near the Mare Orientale impact basin has overall higher than mean radar backscatter in both polarized and depolaried returns, indicating higher than average presence of relatively newly formed large breccia in this region. Mare regions are characterized by lower polarized and depolarized return, indicating that there is higher loss of the radio wave in the subsurface, reducing the echo. We also report unexpected low polarized and depolarized backscatter from an old impact basin in the Schiller–Schickard region, as well as from the region poleward from Mare Imbrium." es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Instituto Geofísico del Perú es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri info:eu-repo/semantics/restrictedAccess es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Radar de apertura sintética es_ES
dc.subject Interferometría es_ES
dc.subject Luna es_ES
dc.subject Efecto Doppler es_ES
dc.subject Antenas de radar es_ES
dc.subject Procesamiento de imágenes--Técnicas digitales es_ES
dc.subject Observatorios (Jicamarca, Perú) es_ES
dc.title Radar images of the Moon at 6-meter wavelength es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Radar es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Medición es_ES
dc.subject.ocde Ciencias espaciales es_ES
dc.subject.ocde Física es_ES
dc.subject.ocde Observación es_ES
dc.identifier.journal Icarus es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1016/j.icarus.2017.06.035 es_ES




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