A local buckling mode that may occur in a partially filled LNG tank because of the development of local circumferential compression in the tank wall between the skirt support at the equator and the liquid surface somewhat below the equator.
FROM: Pedersen, P.T. and Jensen, J.J.,"Buckling of Spherical Cargo Tanks for Liquid Natural Gas", The Royal Institution of Naval Architects, Vol. 5, 1975.
