  The spatial distribution and polarization of Saturn narrowband (NB) emissions
have been studied by using Cassini Radio and Plasma Wave Sciences data and
goniopolarimetric data obtained through an inversion algorithm with a preset
source located at the center of Saturn. From 2004 January 1 to 2017 September
12, NB emissions were selected automatically by a computer program and
rechecked manually. The spatial distribution shows a preference for high
latitude and intensity peaks in the region within 6 Saturn radii for both 5 and
20 kHz NB emissions. 5 kHz NB emissions also show a local time preference
roughly in the 18:00-22:00 sector. The Enceladus plasma torus makes it
difficult for NB emissions to propagate to the low latitude regions outside the
plasma torus. The extent of the low latitude regions where 5 and 20 kHz NB
emissions were never observed is consistent with the corresponding plasma torus
density contour in the meridional plane. 20 kHz NB emissions show a high
circular polarization while 5 kHz NB emissions are less circularly polarized
with |V|<0.6 for majority of the cases. And cases of 5kHz NB emissions with
high circular polarization are more frequently observed at high latitude
especially at the northern and southern edges of the Enceladus plasma torus.
