Publikacje

Abstract:

Digital photogrammetry and remote sensing solutions applied under the project and combined with the geographical information
system made it possible to utilize data originating from various sources and dating back to different periods. Research works made
use of archival and up-to-date aerial images, satellite images, orthophotomaps. Multitemporal data served for mapping and
monitoring intermediate conditions of the Baltic Sea shore zone without a need for a direct interference in the environment. The
main objective of research was to determine the dynamics and volume of sea shore changes along the selected part of coast in the
period of 1951-2004, and to assess the tendencies of shore development in that area. For each of the six annual data sets, the
following were determined: front dune base line, water line and the beach width. The location of the dune base line, which reflects
the course of the shoreline in a given year was reconstructed based on stereoscopic study of images from each annual set.
Unidirectional changes in the period of 1951-2004 occurred only within 10% of the examined shore section length. The examined
shore is marked by a high and considerable dynamics of changes. Almost half of the shore, in particular the middle coast shows big
changes, in excess of 2 m/year. The limits of shoreline changes ranged from 120 to -90 m, and their velocity from 0 to 11 m/year,
save that the middle and west parts of the examined coast section were subjected to definitely more intense shore transformations.
Research based on the analysis of multitemporal aerial images made it possible to reconstruct the intermediate conditions of the
Baltic Sea shoreline and determine the volume and rate of changes in the location of dune base line in the examined period of 53
years, and to find out tendencies of shore development and dynamics.

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SPATIAL-TEMPORAL DETECTION OF CHANGES ON THE SOUTHERN COAST OF THE BALTIC SEA BASED ON MULTITEMPORAL AERIAL PHOTOGRAPHS