Daily Radio-sonde data from IMD, Pune         1976-1980            Indian Stations
                                                                                     June-Sept
                                                                                    00 and 12Z

                                                                                     1980-1985         Indian Stations 00 and 12Z
                                                                                     1971-1980        Indian Stations May-Oct 5.

Daily Radio-wind from IMD, Pune.                   1971-1980         All Indian Stations
                                                                                    00 and 12Z

Monthly RS/RW from IMD, Pune.                     1965-1984         Indian Stations