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Error growth and dynamical vectors during southern hemisphere blocking
Error growth dynamical vectors southern hemisphere blocking
2009/11/11
The structural organization of initially random perturbations or "errors" evolving in a barotropic tangent linear model with time-dependent basic states taken from observations, is examined for cases ...
Africa Renounces Nukes--Treaty's Entry Into Force Makes Entire Southern Hemisphere Free of Nuclear Weapons
Africa Southern Hemisphere Nuclear Weapons
2009/8/17
A Treaty making Africa into a zone free of nuclear weapons entered into force on 15 July 2009, in turn expanding the nuclear-weapon free territories to cover the entire Southern hemisphere. The Treaty...