Mostrar el registro sencillo del ítem Woodman Pollitt, Ronald Francisco Balsley, B. B. Aquino, F. Flores, L. Vásquez, E. Sarango, M. Huamán, M. M. Soldi, H. 2019-01-16T10:24:20Z 2019-01-16T10:24:20Z 1999-10-01
dc.identifier.citation Woodman, R. F., Balsley, B. B., Aquino, F., Flores, L., Vásquez, E., Sarango, M., ... Soldi, H. (1999). First observations of polar mesosphere summer echoes in Antarctica.==$Journal of Geophysical Research: Space Physics, 104$==(A10), 22577-22590. es_ES
dc.identifier.govdoc index-oti2018
dc.description.abstract A 25‐kW peak power 50‐MHz radar was installed at the Peruvian base on King George Island, Antarctica (62°S), in early 1993. A search for polar mesospheric summer echoes (PMSEs) was made during late January and early February of the first year of operation with negative results. These results have been reported in the literature [Balsley et al., 1993; 1995]. We report here results obtained during the austral summer of the second year (1994) of operation. Observations during the second year were begun earlier, i.e., closer to the austral summer solstice. PMSEs were observed during this period, albeit the echoes were much weaker than what one would expect based on earlier Poker Flat radar results at a comparable latitude (65°N) in the Northern Hemisphere. A large and measurable asymmetry in PMSE strength in the two hemispheres therefore exists. We explain this asymmetry by postulating a difference in summer mesopause temperatures between the two hemispheres of ∼7.5 K. This difference has been estimated using an empirical relationship between the variations of the Poker Flat PMSE power as a function of temperature given by the mass spectrometer incoherent scatter extended (MSISE‐90) model. 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:2169-9380
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.subject Polar echoes es_ES
dc.subject Equatorial field es_ES
dc.subject PMSE es_ES
dc.subject Comparative data es_ES
dc.title First observations of polar mesosphere summer echoes in Antarctica es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde es_ES
dc.identifier.journal Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi es_ES




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