Conservation error Conservation errors 1 Curved surface 1 Curved surfaces 1 Curvilinear domains 1 Curvilinear mesh 1 Curvilinear meshes 1 Discretization errors 1 Errors 1 Geometrical inaccuracies 1 Internal points 1 Mathematical operators 1 Mesh generation 1 Moving frame 1 Moving frames 1 Numerical discretization 1 PDEs on the sphere 1 Partial differential equation on the sphere 1 Partial differential equations 1