Simulations of the collection of mesospheric dust particles with a rocket instrument
We investigate the collection of dust particles in the mesosphere with the MESS (MEteoric Smoke Sampler) instrument that is designed to fly on a sounding rocket. We assume that the ice particles that form in the polar mesosphere between 80 and 85 km altitude in summer contain meteoric smoke particle...
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Online Access: | https://doi.org/10.5194/amt-17-3843-2024 https://amt.copernicus.org/articles/17/3843/2024/ |
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ftcopernicus:oai:publications.copernicus.org:amt116120 2024-09-15T17:39:26+00:00 Simulations of the collection of mesospheric dust particles with a rocket instrument Pineau, Adrien Trollvik, Henriette Greaker, Herman Olsen, Sveinung Eilertsen, Yngve Mann, Ingrid 2024-06-28 application/pdf https://doi.org/10.5194/amt-17-3843-2024 https://amt.copernicus.org/articles/17/3843/2024/ eng eng doi:10.5194/amt-17-3843-2024 https://amt.copernicus.org/articles/17/3843/2024/ eISSN: 1867-8548 Text 2024 ftcopernicus https://doi.org/10.5194/amt-17-3843-2024 2024-08-28T05:24:22Z We investigate the collection of dust particles in the mesosphere with the MESS (MEteoric Smoke Sampler) instrument that is designed to fly on a sounding rocket. We assume that the ice particles that form in the polar mesosphere between 80 and 85 km altitude in summer contain meteoric smoke particles; and these should be collected with MESS. The instrument consists of a collection device with an opening and closure mechanism, as well as an attached conic funnel which increases the sampling area in comparison to the collection area. Dust particles are collected either directly after passing through the instrument or indirectly after colliding with and fragmenting on the funnel wall. We calculate the dust and fragment trajectories in the detector to determine the collection efficiency for different particle sizes, rocket velocities, and heights, and we find the final velocities and the temperatures of the particles. The considered design has a sampling area of 62.78 mm diameter and a collection area of 20 mm diameter. For the conditions at the rocket launch site in Andøya, Norway, we estimate the collection of meteoric smoke particles contained in the ice particles to be ∼ 10 12 –10 14 amu mm −2 . The estimated temperatures suggest that the composition of these smoke particles is not affected by the collection. Our calculations also show that keeping the instrument open above 85 km altitude increases the amount of small smoke particles that are directly collected. The directly collected smoke particles are heated as they decelerate, which can affect their composition. Text Andøya Copernicus Publications: E-Journals Atmospheric Measurement Techniques 17 12 3843 3861 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
We investigate the collection of dust particles in the mesosphere with the MESS (MEteoric Smoke Sampler) instrument that is designed to fly on a sounding rocket. We assume that the ice particles that form in the polar mesosphere between 80 and 85 km altitude in summer contain meteoric smoke particles; and these should be collected with MESS. The instrument consists of a collection device with an opening and closure mechanism, as well as an attached conic funnel which increases the sampling area in comparison to the collection area. Dust particles are collected either directly after passing through the instrument or indirectly after colliding with and fragmenting on the funnel wall. We calculate the dust and fragment trajectories in the detector to determine the collection efficiency for different particle sizes, rocket velocities, and heights, and we find the final velocities and the temperatures of the particles. The considered design has a sampling area of 62.78 mm diameter and a collection area of 20 mm diameter. For the conditions at the rocket launch site in Andøya, Norway, we estimate the collection of meteoric smoke particles contained in the ice particles to be ∼ 10 12 –10 14 amu mm −2 . The estimated temperatures suggest that the composition of these smoke particles is not affected by the collection. Our calculations also show that keeping the instrument open above 85 km altitude increases the amount of small smoke particles that are directly collected. The directly collected smoke particles are heated as they decelerate, which can affect their composition. |
format |
Text |
author |
Pineau, Adrien Trollvik, Henriette Greaker, Herman Olsen, Sveinung Eilertsen, Yngve Mann, Ingrid |
spellingShingle |
Pineau, Adrien Trollvik, Henriette Greaker, Herman Olsen, Sveinung Eilertsen, Yngve Mann, Ingrid Simulations of the collection of mesospheric dust particles with a rocket instrument |
author_facet |
Pineau, Adrien Trollvik, Henriette Greaker, Herman Olsen, Sveinung Eilertsen, Yngve Mann, Ingrid |
author_sort |
Pineau, Adrien |
title |
Simulations of the collection of mesospheric dust particles with a rocket instrument |
title_short |
Simulations of the collection of mesospheric dust particles with a rocket instrument |
title_full |
Simulations of the collection of mesospheric dust particles with a rocket instrument |
title_fullStr |
Simulations of the collection of mesospheric dust particles with a rocket instrument |
title_full_unstemmed |
Simulations of the collection of mesospheric dust particles with a rocket instrument |
title_sort |
simulations of the collection of mesospheric dust particles with a rocket instrument |
publishDate |
2024 |
url |
https://doi.org/10.5194/amt-17-3843-2024 https://amt.copernicus.org/articles/17/3843/2024/ |
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Andøya |
genre_facet |
Andøya |
op_source |
eISSN: 1867-8548 |
op_relation |
doi:10.5194/amt-17-3843-2024 https://amt.copernicus.org/articles/17/3843/2024/ |
op_doi |
https://doi.org/10.5194/amt-17-3843-2024 |
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Atmospheric Measurement Techniques |
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17 |
container_issue |
12 |
container_start_page |
3843 |
op_container_end_page |
3861 |
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1810479894603235328 |