Monitoring motions and the surface deformations - Coal quarry ČSA (Czechoslovak army) in Komořany (NW Bohemia)

Jezeří area is limited local monitoring network, close to the coal quarry ČSA in Komořany . Repeated measurements were performed for repeated debris chute threading to coal quarry and close castle Jezeří as well. Data input is from 02/1994 and 05/1994:

Numeric result is text file with values of displacements and values of deformations in grid. Graphical output is interactive. It is possible to change scales, display of point id and include topographic layer like TopoHelp ČR or Landsat etc . Resulting picture can be saved as bmp,gif or jpg, GML, SVG a ESRI Shapefile (SHP) . The field of horizontal displacements on grids and the field on main axes of horizontal deformations on grids within the area is showed. Arrows in deformation field picture indicate the orientation to compression (blue) - to the center of cross, or extension (green) - outside the center of cross.

It is useful to use topographic layers for work with results - for example contour lines. Displacements may seem to go uphill, which is caused by Helmert transformation used to compute geodetic measurements. But horizontal deformations, represented by principal axes of compression or extension are independent on this and answer to the real situation well.

RELATING ITEMS

Basic instructions how to use Deformace

Other examples http://www.vugtk.cz/~deformace/html/priklady.php