  Synchronization of spatiotemporally chaotic extended systems is considered in
the context of coupled one-dimensional Complex Ginzburg-Landau equations
(CGLE). A regime of coupled spatiotemporal intermittency (STI) is identified
and described in terms of the space-time synchronized chaotic motion of
localized structures. A quantitative measure of synchronization as a function
of coupling parameter is given through distribution functions and information
measures. The coupled STI regime is shown to dissapear into regular dynamics
for situations of strong coupling, hence a description in terms of a single
CGLE is not appropiate.
