characteristic of early medieval trading centres, such as Sigtuna or Dublin (Clarke and
Ambrosiani 1991 : 138 – 41 figs 5. 5 and 4. 23 ). In Hedeby this main street was apparently
crossed by several streets running from the harbour to the core areas of the settlement,
shown by Jankuhn’s and Schietzel’s excavations and also detected in the magnetometer
survey.
Around ad 900 the settlement still wasn’t fortified. Perhaps a ditch existed in the
north with a width of c. 2. 80 m and a depth of c. 1. 30 m, which we could see in
the magnetometer picture for a length of c. 210 m (Figure 8. 2. 5 ). But at the moment it
is very difficult to interpret because it could be proved only in Jankuhn’s narrow trial
trench.
Figure 8. 2. 4 Magnetogram of the geophysical research from 2002 (dynamics ca − 10 /+ 10 nT).–– Volker Hilberg––