General D=1 local supercoordinate transformations and their supercurrent algebras

The infinite-dimensional superalgebras W N , describing arbitrary local supercoordinate transformations in D =1 N -extended superspace, are considered as local W N supercurrent algebras. For N =1 and N =2 these superalgebras admit the central extension, necessary for their quantum realizations. The W 1 supercurrents can be identified with N =2 conformal supercurrents, and the W 2 supercurrent algebra is the extension of the SU(2), N =4 conformal supercurrent algebras.