Dynamic Segmentation in the Coastal Information System
383
comparison between the more regional east and south coast data, demonstrates the
ability to characterize predominant coastal forms and materials within the study area.
Analysis of tertiary sequence relationships tends to support the conclusions identified
from the binary sequence relationship data. The use of the OVERLAYEVENTS
command to examine in more detail coastal form and material within 4 km and 10 km
of each end of all barriers, provided a qualitative picture of the predominant adjacency
relationships between barriers and other coastal form types. Quantitative analysis of
these data was not possible because of the over representation of coastal units when two
or more database tables were overlain and duplication of coastal form types existing
within the expanded coastal extents of more than one barrier. Examination of binary
sequence relationships in three specific extents of the coast containing a single barrier
beach, refines the coastal characterization to those units which are part of the larger
barrier system. Consequently, relationships containing unconsolidated material, which
may be the source material for the barrier, were some of the more frequently occurring
binary relationships.
The use of dynamic segmentation for querying form or material adjacency
relationships enables the user to establish, characterize and quantify alongshore
patterns. Our use of dynamic segmentation within the CIS has made possible the
exploration of binary and tertiary adjacency relationships. We have used these
relationships to compare and quantify, where applicable, the similarities and
dissimilarities of the coastal zone at both a regional and local scale. This same
technique may have a wider application to studies specific to coastal zone management
including the identification of potential hazards and sensitive areas.
Acknowledgments
The authors would also like to acknowledge reviews of the chapter by P. Moir and D.L.
Forbes.
Geological Survey of Canada Contribution No. 1997083.
References
Bartlett, D. (1993). Space, time, chaos and coastal GIS. In: Proceedings, 16th
International
Cartographic
Conference
and
42nd
Deutscher
Kartographentag, May 3-9, Köln, Germany, pp. 539 551.
Deuker, K.J., and Vrana, R. (1992). Dynamic segmentation revisited: a milepoint
linear data model. Journal of the Urban Rural Information System
Association, Vol. 4, pp. 94-105.
Howes, D.E., Harper, J., and Owens, E. (1994). British Columbia physical shore-zone
mapping system. Victoria, British Columbia Resources Inventory
Committee, Province of British Columbia, 72 pp.
383
comparison between the more regional east and south coast data, demonstrates the
ability to characterize predominant coastal forms and materials within the study area.
Analysis of tertiary sequence relationships tends to support the conclusions identified
from the binary sequence relationship data. The use of the OVERLAYEVENTS
command to examine in more detail coastal form and material within 4 km and 10 km
of each end of all barriers, provided a qualitative picture of the predominant adjacency
relationships between barriers and other coastal form types. Quantitative analysis of
these data was not possible because of the over representation of coastal units when two
or more database tables were overlain and duplication of coastal form types existing
within the expanded coastal extents of more than one barrier. Examination of binary
sequence relationships in three specific extents of the coast containing a single barrier
beach, refines the coastal characterization to those units which are part of the larger
barrier system. Consequently, relationships containing unconsolidated material, which
may be the source material for the barrier, were some of the more frequently occurring
binary relationships.
The use of dynamic segmentation for querying form or material adjacency
relationships enables the user to establish, characterize and quantify alongshore
patterns. Our use of dynamic segmentation within the CIS has made possible the
exploration of binary and tertiary adjacency relationships. We have used these
relationships to compare and quantify, where applicable, the similarities and
dissimilarities of the coastal zone at both a regional and local scale. This same
technique may have a wider application to studies specific to coastal zone management
including the identification of potential hazards and sensitive areas.
Acknowledgments
The authors would also like to acknowledge reviews of the chapter by P. Moir and D.L.
Forbes.
Geological Survey of Canada Contribution No. 1997083.
References
Bartlett, D. (1993). Space, time, chaos and coastal GIS. In: Proceedings, 16th
International
Cartographic
Conference
and
42nd
Deutscher
Kartographentag, May 3-9, Köln, Germany, pp. 539 551.
Deuker, K.J., and Vrana, R. (1992). Dynamic segmentation revisited: a milepoint
linear data model. Journal of the Urban Rural Information System
Association, Vol. 4, pp. 94-105.
Howes, D.E., Harper, J., and Owens, E. (1994). British Columbia physical shore-zone
mapping system. Victoria, British Columbia Resources Inventory
Committee, Province of British Columbia, 72 pp.