Browsing Institutt for økonomi og it by Author "Kjenstad, Kjell"
Now showing items 1-4 of 4
-
A four-dimensional time-space trend model to be applied in the reconstruction of former sea levels and ice-front recession
Kjenstad, Kjell (Journal article; Peer reviewed, 1997)The model is represented by a four-dimensional trend function giving the elevation of the sea level (Z) above the present one as a function of locality co-ordinates (x and y) and time co-ordinate (t). The function and an ... -
On the integration of object-based models and field-based models in GIS
Kjenstad, Kjell (Journal article; Peer reviewed, 2006)This paper proposes a common base-model for the classical object-based and field-based conceptual models in GIS. The model, which is called the PGOModel or 'Parameterized Geographic Object Model', is given a formal definition ... -
On the use of parameterization in the implementation of geometry
Kjenstad, Kjell (Conference report, 2001)Parameterization of object-classes is an attractive approach during implementation of an object-oriented software system. This text discusses different cases of possible parameterization in the implementation of geometry ... -
Senglasiale paleogeografiske rekonstruksjonsmodeller testet på utvalgte områder i Norge
Kjenstad, Kjell (Doctoral thesis; Peer reviewed, 1984)Avhandlingen tar for seg prinsipper for rekonstruksjon av senglasiale paleogeografiske forhold med spesiell vekt på rekonstruksjon av havnivå og breoverflate. Disse elementene rekonstrueres ved hjelp av ulike matematiske ...