Replace 3 CA authors in AR3 WGI Ch6 (same last name, different persons)

* "A. Jones" has an incompatible first name initial but the same
  institution, it may actually be the same person;

* "T.L. Schneider" has an incompatible first name initial and a
  different institution

* "Y. Zhang" has an incompatible first name initial and a different
 institution.