Vacant Land Cover

This map shows the physical land cover -- pavement, bare soil, rubble, grass, trees -- of the open land shown in the Vacant Land map. It is based primarily on a field survey of vacant land conducted in summer 1989 and the Property Lines and Buildings map. The map was originally intended to be used to determine the relative amount of heat absorbed and re-radiated by ground and building surfaces and the amount of stormwater run-off or infiltration. It should be noted that the data was gathered in 1988-1989 and as the subject can be rather ephemeral (what is lawn one year might be weedy the next and woody five years later), portions of it may be outdated. While this map began as a survey of vacant land cover, eventually we see it becoming a map of all surface conditions in the project area.


Map Source: Field survey conducted by research assistants during summer 1989 under the supervision of Michele Pollio


This site is maintained by the Webmaster at wplp@pobox.upenn.edu

Last Update: 23 July 1997