The   World  Radiation Data Centre  (WRDC)  is sponsored by  the  World  Meteorological
             Organization  (WMO)    on   the   basis  of   Resolution  12  XIV Session  of the   EC  and
             Resolution 6,    XXXVI    Session   of   the   EC.
             The    WRDC   centrally   collects   and   archives  radiometric  data  from   the  world   to
             ensure  the   availability  of   these  data   for  research   by   the   international   scientific
             community.
             The   WRDC    issues    the    publication   "Solar   Radiation   and   Radiation    Balance
              Data (The World Network)"   with   the   purpose   of    providing   the   users   with   data
              on    solar   radiation,   radiation    balance   and  sunshine duration   in  convenient  and
              readily accessible form.
.
             From  1964    the    radiation   data   were   published    once    a    month.
             Since  1993   the   publication   has   been  issued   four   times   a   year.

             Observational  data  received  by  the  WRDC  with  certain  delay  are  published  in  the
             supplementary  issues.

             The  issues  are distributed  among  the  National Meteorological  Services   which  send
              their  solar  radiation  data  to  the  WRDC.

         Address for contacts:
         Voeikov Main Geophysical Observatory,
         World Radiation Data Centre,
         7, Karbyshev Str.,
         194021, St.Petersburg,
         Russian Federation.
         tel.: 7 (812) 297-43-90
         fax.: 7 (812) 297-86-61

Please address your comments or suggestions about the WRDC data set to:
Dr. Anatoly V. Tsvetkov, Head of WRDC.
         tel:7 (812) 295-04-45.
         e-mail: wrdc@main.mgo.rssi.ru
         e-mail: tsvetkov@main.mgo.rssi.ru