LISA: a lightweight stratospheric air sampler
We developed a new lightweight stratospheric air sampler (LISA). The LISA sampler is designed to collect four bag samples in the stratosphere during a balloon flight for CO 2 , CH 4 and CO mole fraction measurements. It consists of four multi-layer foil (MLF) sampling bags, a custom-made manifold, a...
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ftdoajarticles:oai:doaj.org/article:d302fd370a804c36abb0604fd980a07d 2023-05-15T18:20:19+02:00 LISA: a lightweight stratospheric air sampler J. J. D. Hooghiem M. de Vries H. A. Been P. Heikkinen R. Kivi H. Chen 2018-12-01T00:00:00Z https://doi.org/10.5194/amt-11-6785-2018 https://doaj.org/article/d302fd370a804c36abb0604fd980a07d EN eng Copernicus Publications https://www.atmos-meas-tech.net/11/6785/2018/amt-11-6785-2018.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-11-6785-2018 1867-1381 1867-8548 https://doaj.org/article/d302fd370a804c36abb0604fd980a07d Atmospheric Measurement Techniques, Vol 11, Pp 6785-6801 (2018) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2018 ftdoajarticles https://doi.org/10.5194/amt-11-6785-2018 2022-12-31T00:59:43Z We developed a new lightweight stratospheric air sampler (LISA). The LISA sampler is designed to collect four bag samples in the stratosphere during a balloon flight for CO 2 , CH 4 and CO mole fraction measurements. It consists of four multi-layer foil (MLF) sampling bags, a custom-made manifold, and a diaphragm pump, with a total weight of ∼2.5 kg . A series of laboratory storage tests were performed to assess the stability of CO 2 , CH 4 and CO mole fractions in both MLF and Tedlar bags. The MLF bag was chosen due to its better overall performance than the Tedlar bag for the three species CO 2 , CH 4 and CO. Furthermore, we evaluated the performance of the pump under low pressure conditions to optimize a trade-off between the vertical resolution and the sample size. The LISA sampler was flown on the same balloon flight with an AirCore in Sodankylä, Finland (67.368 ∘ N, 26.633 ∘ E, 179 m a.s.l.), on 26 April and 4–7 September 2017. A total of 15 stratospheric air samples were obtained during the ascent of four flights. The sample size ranges between 800 and 180 mL for the altitude between 12 and 25 km , with the corresponding vertical resolution ranging from 0.5 to 1.5 km . The collected air samples were analysed for CO 2 , CH 4 and CO mole fractions, and evaluated against AirCore retrieved profiles, showing mean differences of 0.84 ppm for CO 2 , 1.8 ppb for CH 4 and 6.3 ppb for CO, respectively. High-accuracy stratospheric measurements of greenhouse gas mole fractions are useful to validate remote sensing measurements from ground and from space, which has been performed primarily by comparison with collocated aircraft measurements (0.15–13 km ), and more recently with AirCore observations (0–30 km ). While AirCore is capable of achieving high-accuracy greenhouse gas mole fraction measurements, it is challenging to obtain accurate altitude registration for AirCore measurements. The LISA sampler provides a viable low-cost tool for retrieving stratospheric air samples for greenhouse gas measurements that is ... Article in Journal/Newspaper Sodankylä Directory of Open Access Journals: DOAJ Articles Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) Atmospheric Measurement Techniques 11 12 6785 6801 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 J. J. D. Hooghiem M. de Vries H. A. Been P. Heikkinen R. Kivi H. Chen LISA: a lightweight stratospheric air sampler |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
We developed a new lightweight stratospheric air sampler (LISA). The LISA sampler is designed to collect four bag samples in the stratosphere during a balloon flight for CO 2 , CH 4 and CO mole fraction measurements. It consists of four multi-layer foil (MLF) sampling bags, a custom-made manifold, and a diaphragm pump, with a total weight of ∼2.5 kg . A series of laboratory storage tests were performed to assess the stability of CO 2 , CH 4 and CO mole fractions in both MLF and Tedlar bags. The MLF bag was chosen due to its better overall performance than the Tedlar bag for the three species CO 2 , CH 4 and CO. Furthermore, we evaluated the performance of the pump under low pressure conditions to optimize a trade-off between the vertical resolution and the sample size. The LISA sampler was flown on the same balloon flight with an AirCore in Sodankylä, Finland (67.368 ∘ N, 26.633 ∘ E, 179 m a.s.l.), on 26 April and 4–7 September 2017. A total of 15 stratospheric air samples were obtained during the ascent of four flights. The sample size ranges between 800 and 180 mL for the altitude between 12 and 25 km , with the corresponding vertical resolution ranging from 0.5 to 1.5 km . The collected air samples were analysed for CO 2 , CH 4 and CO mole fractions, and evaluated against AirCore retrieved profiles, showing mean differences of 0.84 ppm for CO 2 , 1.8 ppb for CH 4 and 6.3 ppb for CO, respectively. High-accuracy stratospheric measurements of greenhouse gas mole fractions are useful to validate remote sensing measurements from ground and from space, which has been performed primarily by comparison with collocated aircraft measurements (0.15–13 km ), and more recently with AirCore observations (0–30 km ). While AirCore is capable of achieving high-accuracy greenhouse gas mole fraction measurements, it is challenging to obtain accurate altitude registration for AirCore measurements. The LISA sampler provides a viable low-cost tool for retrieving stratospheric air samples for greenhouse gas measurements that is ... |
format |
Article in Journal/Newspaper |
author |
J. J. D. Hooghiem M. de Vries H. A. Been P. Heikkinen R. Kivi H. Chen |
author_facet |
J. J. D. Hooghiem M. de Vries H. A. Been P. Heikkinen R. Kivi H. Chen |
author_sort |
J. J. D. Hooghiem |
title |
LISA: a lightweight stratospheric air sampler |
title_short |
LISA: a lightweight stratospheric air sampler |
title_full |
LISA: a lightweight stratospheric air sampler |
title_fullStr |
LISA: a lightweight stratospheric air sampler |
title_full_unstemmed |
LISA: a lightweight stratospheric air sampler |
title_sort |
lisa: a lightweight stratospheric air sampler |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/amt-11-6785-2018 https://doaj.org/article/d302fd370a804c36abb0604fd980a07d |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) |
geographic |
Sodankylä |
geographic_facet |
Sodankylä |
genre |
Sodankylä |
genre_facet |
Sodankylä |
op_source |
Atmospheric Measurement Techniques, Vol 11, Pp 6785-6801 (2018) |
op_relation |
https://www.atmos-meas-tech.net/11/6785/2018/amt-11-6785-2018.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-11-6785-2018 1867-1381 1867-8548 https://doaj.org/article/d302fd370a804c36abb0604fd980a07d |
op_doi |
https://doi.org/10.5194/amt-11-6785-2018 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
11 |
container_issue |
12 |
container_start_page |
6785 |
op_container_end_page |
6801 |
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1766197839688368128 |