Cave airflow mechanism of a crevice-type cave: A case study from Czechia
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F20%3AA21024XP" target="_blank" >RIV/61988987:17310/20:A21024XP - isvavai.cz</a>
Alternative codes found
RIV/61989100:27350/20:10245013
Result on the web
<a href="https://scholarcommons.usf.edu/ijs/" target="_blank" >https://scholarcommons.usf.edu/ijs/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5038/1827-806X.49.1.2285" target="_blank" >10.5038/1827-806X.49.1.2285</a>
Alternative languages
Result language
angličtina
Original language name
Cave airflow mechanism of a crevice-type cave: A case study from Czechia
Original language description
At present, crevice-type caves are investigated mainly by means of geomorphic and geophysical methods. Microclimatic research of this type of caves is underrepresented and is often limited to temperature and humidity measurement only. Yet, microclimatic research of such caves can significantly help in the management and conservation of caves, speleological exploration or analysis of speleothems. Being the first ever research of ventilation within a crevice-type cave, a complex analysis of cave ventilation was performed within the Velká Ondrášova Cave, a crevice-type cave in the Outer Western Carpathians, Czechia. Longterm temperature recording, airflow tracing within the cave, and a total of nine monitoring field sessions (conducted between February and April 2015, in August 2015, and March 2018) provided data on temperature and airflow inside and outside the cave, serving as a basis for an analysis of ventilation rates, airflow routes within the cave, instability of the cave airflow, and the general ventilation mechanism of the cave. Based on the data, the average cave airflow velocity 0.27–0.61 m∙s−1 corresponding to the ventilation rates 540–1,260 m3∙h−1 (~13,000–30,000 m3/day) was estimated as a rough value of the ventilation, given the complex morphology of the cave. The Helmholtz resonator appeared to be an unsuitable model for an explanation of the instability within the cave airflow velocity. A regression analysis of the cave airflow highlighted the temperature gradient as an important predictor explaining almost 80% of the analyzed cave airflow variability. However, statistical testing suggested the outdoor wind to be also a relevant driving force of the cave ventilation, accounting for the active cave airflow regime during summer.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Speleology
ISSN
0392-6672
e-ISSN
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Volume of the periodical
49
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
55-67
UT code for WoS article
000527402000006
EID of the result in the Scopus database
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