Cave Microclimate Impact on Karst Processes: Role of Cave Ventilation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F08%3A00028040" target="_blank" >RIV/00216224:14310/08:00028040 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Cave Microclimate Impact on Karst Processes: Role of Cave Ventilation

Original language description

Cave ventilation and its impact on microclimatic parameters were studied in the Císařská Cave (the northern part of the Moravian Karst, Czech Republic) during 2006-2007 period. Air fluxes through cave oscillated with a period of few seconds and amplitudeabout 0.1 m3 s-1. Mean volume fluxes through the lower and higher entrances, respectively, varied from +0.10 to -0.05 m3 s-1 and from -0.19 to +0.07 m3 s-1 as outdoor temperature varied between -3.2 and 31.9 deg C. The unbalanced fluxes indicate minor additional fluxes in/out of cave. A nonlinear dependence of air flux on outdoor temperature was found. The fluxes were lowest at 13 deg C. They oscillated with 0.03 m3 s-1 amplitude and changed their directions. The cave ventilation, v = 0.059 hour-1, andresidence time, tau = 17 hours, were calculated from the maximum flux of 0.188 m3 s-1. The residence time value indicates that cave atmosphere should be completely exchanged during 17 hours under these conditions and at an ideally piston

Czech name

Cave Microclimate Impact on Karst Processes: Role of Cave Ventilation

Czech description

Cave ventilation and its impact on microclimatic parameters were studied in the Císařská Cave (the northern part of the Moravian Karst, Czech Republic) during 2006-2007 period. Air fluxes through cave oscillated with a period of few seconds and amplitudeabout 0.1 m3 s-1. Mean volume fluxes through the lower and higher entrances, respectively, varied from +0.10 to -0.05 m3 s-1 and from -0.19 to +0.07 m3 s-1 as outdoor temperature varied between -3.2 and 31.9 deg C. The unbalanced fluxes indicate minor additional fluxes in/out of cave. A nonlinear dependence of air flux on outdoor temperature was found. The fluxes were lowest at 13 deg C. They oscillated with 0.03 m3 s-1 amplitude and changed their directions. The cave ventilation, v = 0.059 hour-1, andresidence time, tau = 17 hours, were calculated from the maximum flux of 0.188 m3 s-1. The residence time value indicates that cave atmosphere should be completely exchanged during 17 hours under these conditions and at an ideally piston

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DD - Geochemistry

OECD FORD branch

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Project

<a href="/en/project/GA205%2F03%2F1128" target="_blank" >GA205/03/1128: Recent karst processes: speleothem destruction</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2008

Confidentiality

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

Name of the periodical

Slovenský kras (Acta Carsologica Slovaca)

ISSN

0560-3137

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

2

Country of publishing house

SK - SLOVAKIA

Number of pages

3

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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