 |
| Titel |
Using volunteered geographical information to map the November 2012 floods in Slovenia |
| VerfasserIn |
M. Triglav-Čekada, D. Radovan |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 11 ; Nr. 13, no. 11 (2013-11-05), S.2753-2762 |
| Datensatznummer |
250085548
|
| Publikation (Nr.) |
 copernicus.org/nhess-13-2753-2013.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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 is
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. In total, 15
contributors provided 102 terrestrial and aerial images and one aerial video,
with 45% classified as potentially useful. For actual flood mapping 22
images and 12 sequences from video were used. 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
river beds along a total river length of 48 km were mapped. The
results are compared with those from satellite mapping of the same floods,
which successfully covered 18% of the most affected river sections. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|