摘要：The purpose of this project is to determine a fast way
of calculating the volume and distribution of snow mantle, which is located
in wide terrain concavities in mountain areas. Our study area was so-called
Szrenicki Cirque (Kocioł Szrenicki), which is the nival recess, located
in Karkonosze Mountains, Poland. We analyzed modern technologies, that
are designed to generate 3D-models: terrain laser scanning and close-range
photogrammetry (including structure-from-motion technique). There were
two major reasons for our research. First, analyzing if a structure-frommotion
based software is capable of creating a 3D model of snow cover
since potential tie points for adjoin pictures are scarce. The second was to
establish the quality and accuracy of this model in relation to potentially
more accurate terrestrial laser scanning results. An important issue was
also is to estimate the fastest, simplest and least expensive methodology
that can be implemented as a daily task of Karkonosze National Park
workers. A proper, fast, safe and accurate method of calculating the snow
cover volume would incise the safety and avalanche risk evaluation
in the vicinity of Karkonosze Mountains. In addition, the developed
method can be used to monitor the risk of local spring floods.
其他摘要：The purpose of this project is to determine a fast way of calculating the volume and distribution of snow mantle, which is located in wide terrain concavities in mountain areas. Our study area was so-called Szrenicki Cirque (Kocioł Szrenicki), which is the nival recess, located in Karkonosze Mountains, Poland. We analyzed modern technologies, that are designed to generate 3D-models: terrain laser scanning and close-range photogrammetry (including structure-from-motion technique). There were two major reasons for our research. First, analyzing if a structure-frommotion based software is capable of creating a 3D model of snow cover since potential tie points for adjoin pictures are scarce. The second was to establish the quality and accuracy of this model in relation to potentially more accurate terrestrial laser scanning results. An important issue was also is to estimate the fastest, simplest and least expensive methodology that can be implemented as a daily task of Karkonosze National Park workers. A proper, fast, safe and accurate method of calculating the snow cover volume would incise the safety and avalanche risk evaluation in the vicinity of Karkonosze Mountains. In addition, the developed method can be used to monitor the risk of local spring floods.
