@InProceedings{RigozoEchEchSilDal:2015:SiSoDe,
author = "Rigozo, Nivaor Rodolfo and Echer, Mariza Pereira de Souza and
Echer, Ezequiel and Silva, H. E. and Dal Lago, Alisson",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Universidade do Estado do Rio de
Janeiro (UERJ)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)}",
title = "Signal solar in deuterium from Antarctic and Greenland",
year = "2015",
organization = "International Congress of the Brazilian Geophysical Society, 14.",
abstract = "A time series study was conducted in order to identify dominant
variability of deuterium/hydrogen ratios obtained in snow, firn
snow and ice samples of an ice core from: Lange Glacier (King
George Island/Antarctic Peninsula, lat 62o 07S, long 58o 37W),
Dronning Maud Land in the Atlantic sector of Antarctica (71°35'S,
3°26W), and from GISP2, Greenland (72°36N, 38°30W). Periodicities
were estimated by using classical spectral analysis (iterative
regression) and multiresolution analysis. The 11 yr solar cycle
was clearly identified in the spectral analysis. The 11 yr
frequency band has been reconstructed from the parameters found in
spectral analysis (amplitude, frequency and phase). It was
observed a high cross-correlation (r>0.6) between \D and
solar activity indexes (sunspot number, aa index, protons high
energy, >100 MeV). A multiresolution analysis also has been
performed in all-time serie and has shown a high cross-correlation
between this time series for the frequency level D2, D3, D4, D5 e
A5. This suggests the hypothesis that part of the deuterium (2H)
measured at Earth comes from the Sun as part of the solar wind or
that high-energy solar protons produce the deuterium in the Earth
atmosphere.",
conference-location = "Rio de Janeiro, RJ",
conference-year = "3-6 Aug.",
urlaccessdate = "26 abr. 2024"
}