Preprints
https://doi.org/10.5194/amt-2020-278
https://doi.org/10.5194/amt-2020-278
28 Jul 2020
 | 28 Jul 2020
Status: this preprint has been withdrawn by the authors.

Investigating the Dust Flux in the Meteoric Smoke Sampler (MESS) Instrument for Sampling Dust in the Mesosphere

Henriette Trollvik, Ingrid Mann, Sveinung Olsen, and Yngve Eilertsen

Abstract. We report and discuss the design of a rocket instrument to collect mesospheric dust particles that are composed of ice and include smaller refractory meteoric smoke particles (MSP). We expect that the ice components melt and that MSP are collected. The instrument consists of a collection device with an opening and closure mechanism and an attached conic funnel. Attaching the funnel increases the sampling area in comparison to the collection area which is kept small since this determines the size of the closure device which is a critical component to be designed for sea recovery. The instrument will collect primary particles that directly hit the collection area and secondary particles that form from mesospheric dust hitting the funnel. We simulate the entry and impact of dust onto the detector considering their trajectories in the airflow and the fragmentation at the funnel. We estimate the collection efficiency of the instrument and the impact energy of particles at the collecting area. The design considered has a sampling area of 5 cm diameter and a collection area of 1.8 cm diameter. To estimate the expected amount of collected dust we assume collection during rocket flight through a 0.5 to 4 km dust layer with dust number densities and dust sizes at 85 km as derived from lidar observations (Kiliani et al., 2015). Assuming the collected particles contain 3 % volume fraction of MSP, we find that the instrument would collect of the order of 1014 to 1015 amu of refractory MSP particles. The estimate basis on the assumption that the ice components are melting and the flow conditions in the instruments are for typical atmospheric pressures at 85 km.

This preprint has been withdrawn.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Henriette Trollvik, Ingrid Mann, Sveinung Olsen, and Yngve Eilertsen

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Henriette Trollvik, Ingrid Mann, Sveinung Olsen, and Yngve Eilertsen
Henriette Trollvik, Ingrid Mann, Sveinung Olsen, and Yngve Eilertsen

Viewed

Total article views: 1,002 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
746 198 58 1,002 56 55
  • HTML: 746
  • PDF: 198
  • XML: 58
  • Total: 1,002
  • BibTeX: 56
  • EndNote: 55
Views and downloads (calculated since 28 Jul 2020)
Cumulative views and downloads (calculated since 28 Jul 2020)

Viewed (geographical distribution)

Total article views: 980 (including HTML, PDF, and XML) Thereof 979 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 05 Dec 2024
Download

This preprint has been withdrawn.

Short summary
We discuss the design of a rocket instrument to collect mesospheric dust consisting of ice with embedded non-volatile meteoric smoke particles. The instrument consists of a collection device and an attached conic funnel. We consider the dust trajectories in the airflow and fragmentation at the funnel. For summer atmospheric conditions at 85 km and assuming that the ice components vaporize we estimate that up to 1014 to 1015 amu of non-volatile dust material can be collected.