MERJENJE MALIH ALPSKIH LEDENIKOV: PRIMERI IZ SLOVENIJE IN AVSTRIJE

Mihaela Triglav Čekada, Matija Zorn, Viktor Kaufmann, Gerhard Karl Lieb

DOI: 10.15292/geodetski-vestnik.2012.03.443-461

 

MEASUREMENTS OF SMALL ALPINE GLACIERS: EXAMPLES FROM SLOVENIA AND AUSTRIA

Mihaela Triglav Čekada, Matija Zorn, Viktor Kaufmann, Gerhard Karl Lieb

DOI: 10.15292/geodetski-vestnik.2012.03.462-481

 

Izvleček:

V zadnjem stoletju in pol se globalne povprečne letne temperature stalno dvigajo. Ena od vidnih posledic tega je spreminjanje velikosti ledenikov. Za spremljanje površinskih in prostorninskih sprememb ledenikov obstajajo številne metode, od meritev z merskim trakom, klasičnih geodetskih izmer do daljinskega zaznavanja in fotogrametrije. Uporaba nekaterih je predstavljena na dveh slovenskih (Triglavski ledenik, Ledenik pod Skuto) in dveh avstrijskih ledenikih (Gössnitzkees in Hornkees). Predstavljen je tudi dolgoročen trend zmanjševanja ledenikov Gössnitzkees, Hornkees in Triglavskega ledenika, ki ga na podlagi različnih arhivskih podatkov lahko spremljamo že od začetka 20. stoletja. Čeprav so obravnavani ledeniki različno veliki, izkazujejo primerljiv letni trend zmanjševanja v obdobju med letoma 1929 in 2006.

Ključne besede: mali alpski ledeniki, geodetska izmera, fotogrametrična izmera, Avstrija, Slovenija

 

Abstract:

In the last century and a half, average summer temperatures have slowly been rising worldwide. The most observable consequence of this is the change in glacier sizes. For monitoring glacier area and volume, various measuring techniques exist from measurements with a measuring tape and geodetic measurements to remote sensing and photogrammetry. A comparison of different measuring techniques on two Slovenian glaciers (the Triglav and Skuta glaciers) and two Austrian glaciers (the Gössnitzkees and Hornkees glaciers) is made. A long-term glacial retreat trend is presented for the Gössnitzkees, 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.

Keywords: small alpine glaciers, geodetic measurements, photogrammetric measurements, Austria, Slovenia

 

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