In addition to the price data, data on landscape features of
each district were collected. First, for each district the area in
hectares of sandy beach that extends beyond the main
coastline was measured using the 1:50000 topographical map
from the TOP50 CD-Rom (Landesvermessungsamt Schleswig-
Holstein, 2005). Second, using maps showing coastal protection
structures and coastal morphology from the Ministry of
Coastal Protection (Ministerium für ländliche Räume, Landesplanung,
Landwirtschaft und Tourismus des Landes Schleswig-
Holstein, 2001) the length of dikes, cliffs and open coast in
each district were measured using MAPINFO. The area in
hectares of water surface, heathland, moorland and agricultural
land were taken from the land use dataset of the state
statistical office (Statistisches Landesamt Schleswig-Holstein,
1999).