Berichte 2009 - Förderergesellschaft der Geodäsie und ...

32
Ein Fahrzeug kann die Sicherheit seiner geschätzten Niederschlagsmenge
erhöhen, indem es Messdaten von stationären Wetterstationen empfängt. Diese
Informationen können an andere Fahrzeuge weitergegeben werden, die sich
nicht in Reichweite einer Wetterstation befinden. Auf diese Weise kann eine
Verdichtung und eine hohe Aktualität der Niederschlagsmessungen erreicht
werden.
Integration of Legacy Cadastral Datasets
This research is about the integration of existing cadastral data acquired in the
past to develop a seamless and harmonious dataset. Because of historical
reasons, cadastral data unlike topographic data is acquired over a long period
of time using different techniques. This situation is particularly evident in
jurisdictions that practice both title and deed systems of land tenure. Whereas
the use of Spatial Data Infrastructure (SDI) in land administration has increased
the demand for seamless and harmonious cadastral data, the ubiquitous
availability of geospatial data and information provides the motivation and
means to develop such datasets.
The particular challenge being addressed in the integration of legacy cadastral
datasets is the apparent absence of corresponding ground signatures and low
positional accuracy of such datasets.
The experimental cadastral dataset was acquired by tracing land parcel
boundaries from uncontrolled and unrectified aerial photographs and is
commonly referred to as a Preliminary Index Diagram (PID) in Kenya. The
diagram below illustrates some of the tasks that are being considered in the
methodology: Derivation of Road Network from a cadastral dataset and the
matching and alignment of the derived dataset with a more accurate and
directly mapped Road network dataset.