B-orbits of nilpotency order 2 and link patterns

Further we apply this description to the computations of the closures of orbital varieties of nilpotency order 2 and their pairwise intersections. In particular, we connect our results on intersections to the combinatorics of meanders in Temperley-Lieb algebras and pairwise intersections of the components of a Springer fiber over a nilpotent element with two Jordan blocks.