Mostrar el registro sencillo del ítem Chau Chong Shing, Jorge Luis Woodman Pollitt, Ronald Francisco
dc.coverage.spatial Jicamarca 2016-10-25T15:37:55Z 2017-12-21T19:41:40Z 2016-10-25T15:37:55Z 2017-12-21T19:41:40Z 2001
dc.identifier.citation Chau, J. L., & Woodman, R. F. (2001). Interferometric and dual beam observations of daytime spread-F-like irregularities over Jicamarca.==$Geophysical Research Letters, 28$==(18), 3581-3584. es_ES
dc.description.abstract We report new observations made on April 11 2000 over Jicamarca of daytime spread-F-like irregularities. These irregularities are extremely rare (this was the fourth observation in the history of Jicamarca) and were first reported by Woodman et al. [1985]. The main features of these new observations, which are similar to the previous ones, are that they were: (1) two orders of magnitude stronger than the incoherent scatter echoes at the F peak, (2) observed between 1400 and 1600 LT; (3) characterized by small Doppler shifts (vd < 1 m s-1); and (4) characterized by long correlation times, i.e., narrow spectral widths. The latter is interpreted as evidence that these irregularities are field aligned (very aspect sensitive in the north-south direction). On this occasion the irregularities occurred at higher altitudes than before, between 950 and 1450 km compared to 600-1000 km. The echoes in these recent observations were quite localized in the east-west direction (they were much stronger in the west beam than in the east beam). Furthermore, using interferometry we determined that the echoes were aspect sensitive in the east-west (as well as north-south) direction with aspect angle widths as small as 0.2 degrees, particularly when the echoes were strong. es_ES
dc.description.sponsorship ROJ es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher American Geophysical Union es_ES
dc.relation.ispartof urn:issn:0094-8276
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri es_ES
dc.subject Interferometry es_ES
dc.subject F Region es_ES
dc.subject Plasma es_ES
dc.subject Region E es_ES
dc.subject Jicamarca Radio Observatory es_ES
dc.title Interferometric and dual beam observations of daytime spread-F-like irregularities over Jicamarca es_ES
dc.type info:eu-repo/semantics/preprint es_ES
dc.subject.ocde es_ES
dc.identifier.journal Geophysical Research Letters es_ES
dc.identifier.doi es_ES




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