Niphargus: A silicon band-gap sensor temperature logger for high-precision environmental monitoring

Burlet, Christian; Vanbrabant, Yves; Piessens, Kris; Welkenhuysen, Kris; Verheyden, Sophie

doi:10.1016/j.cageo.2014.10.009

Cited by 8 publications

(9 citation statements)

References 9 publications

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“…Gases (O 2 , CH 4 , SO 2 , and H 2 S) were analyzed using a MSA Altair4x multigas detector (Pittsburgh, USA). The range of values and their resolution were 0–30 ± 0.1 vol% for O 2 , 0–100 ± 1% LEL for CH 4 , 0–20 ± 0.1 ppm for SO 2 , and 0–200 ± 1 ppm for H 2 S. The air temperature was measured with the silicon band-gap sensor loggers Niphargus (Natural History Museum Brussels, [39]) and Hobo (ONSET, [40]).…”

Section: Methodsmentioning

confidence: 99%

Geomicrobiology of a seawater-influenced active sulfuric acid cave

D’Angeli

Ghezzi

Leuko³

et al. 2019

PLoS ONE

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Fetida Cave is an active sulfuric acid cave influenced by seawater, showing abundant microbial communities that organize themselves under three main different morphologies: water filaments, vermiculations and moonmilk deposits. These biofilms/deposits have different cave distribution, pH, macro- and microelement and mineralogical composition, carbon and nitrogen content. In particular, water filaments and vermiculations had circumneutral and slightly acidic pH, respectively, both had abundant organic carbon and high microbial diversity. They were rich in macro- and microelements, deriving from mineral dissolution, and, in the case of water filaments, from seawater composition. Vermiculations had different color, partly associated with their mineralogy, and unusual minerals probably due to trapping capacities. Moonmilk was composed of gypsum, poor in organic matter, had an extremely low pH (0–1) and low microbial diversity. Based on 16S rRNA gene analysis, the microbial composition of the biofilms/deposits included autotrophic taxa associated with sulfur and nitrogen cycles and biomineralization processes. In particular, water filaments communities were characterized by bacterial taxa involved in sulfur oxidation and reduction in aquatic, aphotic, microaerophilic/anoxic environments (Campylobacterales, Thiotrichales, Arenicellales, Desulfobacterales, Desulforomonadales) and in chemolithotrophy in marine habitats (Oceanospirillales, Chromatiales). Their biodiversity was linked to the morphology of the water filaments and their collection site. Microbial communities within vermiculations were partly related to their color and showed high abundance of unclassified Betaproteobacteria and sulfur-oxidizing Hydrogenophilales (including Sulfuriferula ), and Acidiferrobacterales (including Sulfurifustis ), sulfur-reducing Desulfurellales, and ammonia-oxidizing Planctomycetes and Nitrospirae. The microbial community associated with gypsum moonmilk showed the strong dominance (>60%) of the archaeal genus Thermoplasma and lower abundance of chemolithotrophic Acidithiobacillus , metal-oxidizing Metallibacterium , Sulfobacillus , and Acidibacillus . This study describes the geomicrobiology of water filaments, vermiculations and gypsum moonmilk from Fetida Cave, providing insights into the microbial taxa that characterize each morphology and contribute to biogeochemical cycles and speleogenesis of this peculiar seawater-influenced sulfuric acid cave.

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Section: Methodsmentioning

confidence: 99%

Geomicrobiology of a seawater-influenced active sulfuric acid cave

D’Angeli

Ghezzi

Leuko³

et al. 2019

PLoS ONE

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“…Silicon band-gap temperature sensors operate on the principle that the forward voltage of a silicon diode is temperature dependent. Band-gap technology has the advantage of being low-cost, accurate, and reliable, as well as providing highly consistent measurements and having a positive temperature coefficient with a very low drift over time (Burlet et al, 2015). Both sensors have the same resolution but the S1H2 has a smaller operational range.…”

Section: Temperaturementioning

confidence: 99%

Evaluation of Windsond S1H2 performance in Kumasi during the 2016 DACCIWA field campaign

et al. 2019

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Sparv Embedded, Sweden (http://windsond.com, last access: 22 February 2019), has answered the call for less expensive but accurate reusable radiosondes by producing a reusable sonde primarily intended for boundary-layer observations collection: the Windsond S1H2. To evaluate the performance of the S1H2, in-flight comparisons between the Vaisala RS41-SG and Windsond S1H2 were performed during the Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa (DACCIWA) project (FP7/2007-2013) ground campaign at the Kumasi Agromet supersite (6 • 40 45.76 N, 1 • 33 36.50 W) inside the Kwame Nkrumah University of Science and Technology (KNUST), Ghana, campus. The results suggest a good correlation between the RS41-SG and S1H2 data, the main difference lying in the GPS signal processing and the humidity response time at cloud top. Reproducibility tests show that there is no major performance degradation arising from S1H2 sonde reuse.Published by Copernicus Publications on behalf of the European Geosciences Union.

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“…Silicon band-gap temperature sensors operate on the principle that the forward voltage of a silicon diode is temperature dependent. Band-gap technology has the advantage of being low cost, accurate and reliable, provide highly consistent measurements, have a positive temperature coefficient with a very low drift over time (Burlet et al 2015).…”

Section: The S1h2 Windsondmentioning

confidence: 99%

Evaluation of Windsond S1H2 performance in Kumasi during the 2016 DACCIWA field campaign

Bessardon¹,

Fosu-Amankwah²,

Petersson³

et al. 2018

Preprint

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Abstract. Sparv Embedded, Sweden (http://windsond.com) has answered the call for less expensive but accurate reusable radiosondes by producing the Windsond S1H2. To evaluate the performance of the S1H2, in-flight comparisons between the Vaisala RS41-SG and Windsond S1H2 were performed during the Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa (DACCIWA) project (FP7/2007–2013) ground campaign at the Kumasi Agromet supersite (6°40′45.76″ N, 1°33′36.50″ W) inside the Kwame Nkrumah University of Science and Technology (KNUST), Ghana campus. The results suggest a good correlation between the RS41-SG and S1H2 data, the main difference lying in the GPS signal processing and the humidity response time at a cloud top. Reproducibility tests show that there is no major performance degradation arising from S1H2 sonde re-use.

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Niphargus: A silicon band-gap sensor temperature logger for high-precision environmental monitoring

Cited by 8 publications

References 9 publications

Geomicrobiology of a seawater-influenced active sulfuric acid cave

Geomicrobiology of a seawater-influenced active sulfuric acid cave

Evaluation of Windsond S1H2 performance in Kumasi during the 2016 DACCIWA field campaign

Evaluation of Windsond S1H2 performance in Kumasi during the 2016 DACCIWA field campaign

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