  It has been conjectured that the string and unification scales may be
substantially lower than previously believed, perhaps a few TeV. In scenarios
of this type, orbiting detectors such OWL or AIRWATCH can observe spectacular
phenomena at trans-GZK energies. We explore measurable signatures of the
hypothesis that trans-GZK air showeres (``anomalous showers'') are originated
by strongly interacting neutrinos. The results of a MC simulation of such air
showers is described. A distinction between proton induced and ``anomalous''
showers becomes possible once a substantial sample of trans-GZK showers will be
available.
