CORA-a dedicated device for carbon dioxide monitoring in cave environments

High resolution time-series of cave CO2 fluctuations are increasingly demanded to quantify calcite precipitation processes. CORA, an energy-efficient NDIR-device, has been specifically developed for the long-term monitoring of carbon dioxide in remote cave environments. To allow comparison between d...
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Gespeichert in:

Autor*in:	Luetscher Marc [verfasserIn] Ziegler Felix [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2012

Schlagwörter:	cave carbon dioxide (CO2) monitoring climate speleothem

Übergeordnetes Werk:	In: International Journal of Speleology - University of South Florida Libraries, 2006, 41(2012), 2, Seite 275-283
Übergeordnetes Werk:	volume:41 ; year:2012 ; number:2 ; pages:275-283

Links:	Link aufrufen Link aufrufen Journal toc Journal toc

Katalog-ID:	DOAJ050040553

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language	English
source	In International Journal of Speleology 41(2012), 2, Seite 275-283 volume:41 year:2012 number:2 pages:275-283
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topic_facet	cave carbon dioxide (CO2) monitoring climate speleothem Biology (General) Geology
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container_title	International Journal of Speleology
authorswithroles_txt_mv	Luetscher Marc @@aut@@ Ziegler Felix @@aut@@
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author	Luetscher Marc
spellingShingle	Luetscher Marc misc QH301-705.5 misc QE1-996.5 misc cave misc carbon dioxide (CO2) misc monitoring misc climate misc speleothem misc Biology (General) misc Geology CORA-a dedicated device for carbon dioxide monitoring in cave environments
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topic	misc QH301-705.5 misc QE1-996.5 misc cave misc carbon dioxide (CO2) misc monitoring misc climate misc speleothem misc Biology (General) misc Geology
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title	CORA-a dedicated device for carbon dioxide monitoring in cave environments
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title_full	CORA-a dedicated device for carbon dioxide monitoring in cave environments
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title_sort	cora-a dedicated device for carbon dioxide monitoring in cave environments
callnumber	QH301-705.5
title_auth	CORA-a dedicated device for carbon dioxide monitoring in cave environments
abstract	High resolution time-series of cave CO2 fluctuations are increasingly demanded to quantify calcite precipitation processes. CORA, an energy-efficient NDIR-device, has been specifically developed for the long-term monitoring of carbon dioxide in remote cave environments. To allow comparison between different cave sites, changes in air pressure and temperature are compensated for using dedicated probes. Laboratory experiments demonstrate that CORA’s precision is adapted to the analysis of spatially and temporally variable CO2 regimes and therefore suitable for a large number of applications. Data obtained with 12 independently calibrated instruments are reproducible within 3% (1s). The two-point calibration function is validated using certified reference gases for an overall accuracy determined at ±50ppmv, resp.≤±3%. Although no significant drift was observed during the test phase a periodic recalibration is recommended. Initial results from field studies show that continuous monitoring over a full annual cycle is possible at 4 hour intervals without specific maintenance.
abstractGer	High resolution time-series of cave CO2 fluctuations are increasingly demanded to quantify calcite precipitation processes. CORA, an energy-efficient NDIR-device, has been specifically developed for the long-term monitoring of carbon dioxide in remote cave environments. To allow comparison between different cave sites, changes in air pressure and temperature are compensated for using dedicated probes. Laboratory experiments demonstrate that CORA’s precision is adapted to the analysis of spatially and temporally variable CO2 regimes and therefore suitable for a large number of applications. Data obtained with 12 independently calibrated instruments are reproducible within 3% (1s). The two-point calibration function is validated using certified reference gases for an overall accuracy determined at ±50ppmv, resp.≤±3%. Although no significant drift was observed during the test phase a periodic recalibration is recommended. Initial results from field studies show that continuous monitoring over a full annual cycle is possible at 4 hour intervals without specific maintenance.
abstract_unstemmed	High resolution time-series of cave CO2 fluctuations are increasingly demanded to quantify calcite precipitation processes. CORA, an energy-efficient NDIR-device, has been specifically developed for the long-term monitoring of carbon dioxide in remote cave environments. To allow comparison between different cave sites, changes in air pressure and temperature are compensated for using dedicated probes. Laboratory experiments demonstrate that CORA’s precision is adapted to the analysis of spatially and temporally variable CO2 regimes and therefore suitable for a large number of applications. Data obtained with 12 independently calibrated instruments are reproducible within 3% (1s). The two-point calibration function is validated using certified reference gases for an overall accuracy determined at ±50ppmv, resp.≤±3%. Although no significant drift was observed during the test phase a periodic recalibration is recommended. Initial results from field studies show that continuous monitoring over a full annual cycle is possible at 4 hour intervals without specific maintenance.
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title_short	CORA-a dedicated device for carbon dioxide monitoring in cave environments
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