A 6-7 year cycle in the Earth System

Anny A Cazenave, Laboratoire d'Etudes en Geophysique et Oceanographie Spatiale, Observatoire Midi Pyrénées, LEGOS-CNES-CNRS-IRD-UPS, Toulouse, France, Julia Pfeffer, Magellium, Earth Observation, Ramonville-Saint-Agne, France, Lorena Moreira, International Space Science Institute, Bern, Switzerland, Mioara Mandea, CNES French National Center for Space Studies, Paris, France, Veronique M A Dehant, Royal Observatory Belgium, Brussels, Belgium and Olivier de Viron, U. La Rochelle, LIENSs, La Rochelle, France