Calculating the visibility for flying objects in a certain elevation

Idea created by m.rickgeosecure-de-esridist Employee on Oct 10, 2011
    New
    Score10
    • admin_aridlands

    The viewshed tool and the observer points calculate visibilities for certain observers within the surrounding environment defined by digital elevation models. The user can define many parameters to set up a certain sector where the visibility should be calculated.
    One of these parameters is the OFFSETB parameter which defines how high above the surface the visibility should be calculated. The user can not define a constant layer (e.g. 300 m above sea level) in order o observe flying objects in a certain height. This would be  a good option to observe air lanes.
    As long as it just adds the OFFSETB value to the value of the cell, this paramter can lead to some missunderstanding and wrong analyses.