Physical oceanography and methane concentrations measured with the MEDUSA system on transect Amfilochia_trans1, Amvrakikos Gulf, Western Greece - Giuseppe Etiope; Giuditta Marinaro; Nadia Lo Bue; George Papatheodorou; Maria Geraga; Dimitris Christodoulou; Elias Fakiris; Margarita Iatrou; Stavroula Kordella; Michalis Prevenios (PANGAEA, 2011)