The results of interactive orientation of non-metric images made with the photogrammetrically derived DEM with a cell size of 5 m × 5 m and LiDAR derived DEM with a cell size of 1 m × 1 m are presented. The evaluation of the method for the 3D data acquisition is made for Lubljana moor floods, which happened between September 16-19, 2010. In the analysis two sets of images was used. It was concluded that such images enable flood retreat studying.
COBISS.SI-ID: 35003437
In this paper the acquisition of three-dimensional data from archived, non-metric, panoramic, Horizont images is presented. The annual variations of Triglav glacier's area are given for the period 1976-2010, together with monthly snow variations for the years 1977 and 1998. Additionally, theoretical and empirical volumes and an empirical thickness reduction are computed. The changes to Triglav Glacier are compared with the summarized meteorological data from the Kredarica meteorological station.
COBISS.SI-ID: 35172397
Volunteered geographical information represents a promising field in the monitoring and mapping of natural disasters. The contributors of volunteered geographical information have the advantage that they are at the location of the natural disaster at exactly the time when the disaster happened. Therefore, they can provide the most complete account of the extent of the damage. This is not always possible when applying photogrammetric or remote-sensing methods, as prior to the data acquisition an order to carry out the measurements has to be made. On 5 and 6 November 2012 almost half of Slovenia was badly affected by floods. The gathering of volunteered geographical information in the form of images and videos of these floods will be presented. Two strategies were used: (1) a public call for volunteered contributions and (2) a web search for useful images and their authors. The authorship of these images was verified with every contributor, and with the help of the volunteered images 12% of the most severely affected river sections were mapped. Altogether, 1195.3 ha of flooded areas outside of the usual riverbeds along a total river length of 48 km were mapped. The results are compared with those from satellite mapping of the same floods.
COBISS.SI-ID: 36829189
A comparison of different measuring techniques on two Slovenian glaciers (the Triglav and Skuta glaciers) and two Austrian glaciers (the Gösnitzkees and Hornkees glaciers) is made. A long-term glacial retreat trend is presented for the Gösnitzkees, Hornkees, and Triglav glaciers because these glaciers can be monitored throughout the entire twentieth century by means of archival data. Despite their different sizes, the annual trend of glacial retreat was approximately the same in the period between 1929 and 2006.
COBISS.SI-ID: 34705453
The Triglav glacier is situated in the Julian Alps in the northwest of Slovenia. Presented are the results of investigations and measurements of the Triglav glacier done between the years 1999 and 2012. During this period its depth was measured by means of georadar for the first time. Its area was measured on a yearly basis by means of various land surveying methods. The dynamics of the glacier shrinkage is explained by using the weather data of each respective year. Due to the glacier's concave form, accumulated winter snow did not melt until the late summer in the past few years, particularly in the central and lower sections of the glacier. If such weather conditions continue, and the amount of winter precipitation further increases, the remainder of the Triglav glacier, though small in size, will continue to exist for a few years.
COBISS.SI-ID: 35773485