Preliminary estimate of current ice thickness in the Dob sin a Ice Cave by means of geophysical and geodetic methods

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F24%3A00603936" target="_blank" >RIV/67985530:_____/24:00603936 - isvavai.cz</a>

Výsledek na webu

<a href="https://journal.geo.sav.sk/cgg/article/view/547/458" target="_blank" >https://journal.geo.sav.sk/cgg/article/view/547/458</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31577/congeo.2024.54.4.5" target="_blank" >10.31577/congeo.2024.54.4.5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preliminary estimate of current ice thickness in the Dob sin a Ice Cave by means of geophysical and geodetic methods

Popis výsledku v původním jazyce

The presented study focuses on the Dobsina Ice Cave, which is worldwide unique from the speleological viewpoint, belonging to the most famous caves in Europe. During the 20th century, the research of the cave was carried out within various scientific branches. In the last years, one important part of the survey is the geodetic monitoring of the ice surface by modern laser scanning methods. Since 2020, also geophysical (georadar and microgravity) research is conducted in the Dobsina Ice Cave. In this contribution, we present preliminary results on the present ice filling thickness, based on the interpretation of vertical radar grams and 2.5D density modelling of anomalous gravity data. Maximum thickness values from geo radar measurements are more than 24.5 m in the eastern part of the cave, in the lower part of the Great Hall. Roughly estimated error of the depth determination from GPR vertical sections is at the level of +/- 0.5 m. Results from gravimetry apparently point to the fact that the sections with largest ice thickness could be placed rather westward to the central part of the cave. This interpretation remains questionable though, still open due to missing GPR results in the central part of the cave. We hope that future additional data and 3D density modelling will help to resolve this issue.

Název v anglickém jazyce

Preliminary estimate of current ice thickness in the Dob sin a Ice Cave by means of geophysical and geodetic methods

Popis výsledku anglicky

The presented study focuses on the Dobsina Ice Cave, which is worldwide unique from the speleological viewpoint, belonging to the most famous caves in Europe. During the 20th century, the research of the cave was carried out within various scientific branches. In the last years, one important part of the survey is the geodetic monitoring of the ice surface by modern laser scanning methods. Since 2020, also geophysical (georadar and microgravity) research is conducted in the Dobsina Ice Cave. In this contribution, we present preliminary results on the present ice filling thickness, based on the interpretation of vertical radar grams and 2.5D density modelling of anomalous gravity data. Maximum thickness values from geo radar measurements are more than 24.5 m in the eastern part of the cave, in the lower part of the Great Hall. Roughly estimated error of the depth determination from GPR vertical sections is at the level of +/- 0.5 m. Results from gravimetry apparently point to the fact that the sections with largest ice thickness could be placed rather westward to the central part of the cave. This interpretation remains questionable though, still open due to missing GPR results in the central part of the cave. We hope that future additional data and 3D density modelling will help to resolve this issue.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10507 - Volcanology

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Contributions to geophysics and geodesy

ISSN

1338-0540

e-ISSN

1338-0540

Svazek periodika

54

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

18

Strana od-do

389-406

Kód UT WoS článku

001383083500005

EID výsledku v databázi Scopus

2-s2.0-85214402197