Rouault M., Mélice Jean-Luc, Reason C.J.C., Lutijeharms J.R.E. (2005). Climate variability at Marion Island, Southern Ocean, since 1960. Journal of Geophysical Research Oceans, 110 (C5), art. no. C05007. ISSN 0148-0227.
Titre du document
Climate variability at Marion Island, Southern Ocean, since 1960
Rouault M., Mélice Jean-Luc, Reason C.J.C., Lutijeharms J.R.E.
Source
Journal of Geophysical Research Oceans, 2005,
110 (C5), art. no. C05007 ISSN 0148-0227
[1] In recent decades, instrumental data recorded at the South African Weather Service station on Marion Island ( 46 degrees 54'S and 37 degrees 51'E) in the Southern Ocean shows that the local climate of this island has undergone significant changes since the 1960s, mostly in austral summer. These include a decrease in rainfall, an increase in nonrainy days, changes in wind speed and direction, and an increase in maximum and minimum local air temperature and in nearshore sea surface temperature. This study analyzes surface temperature, pressure, sea surface temperature, and rainfall recorded daily at Marion Island together with NCEP reanalyses to explore the mechanisms potentially associated with these changes. It is suggested that the changes to the local climate of Marion Island are linked to the well-documented shift in phase of the semiannual oscillation in the Southern Hemisphere after about 1980.
Plan de classement
Sciences du milieu [021]
;
Limnologie physique / Océanographie physique [032]
