Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes
The middle- and upper-atmospheric energy budget is largely dominated by reactions involving atomic oxygen (O). Modeling of these processes requires detailed knowledge about the distribution of this oxygen species. Understanding the mutual contributions of atomic oxygen and wave motions to the atmosp...
Published in: | Atmospheric Measurement Techniques |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2015
|
Subjects: | |
Online Access: | https://doi.org/10.5194/amt-8-3701-2015 https://doaj.org/article/737bd17cbc86466c9e528f33c2bb8df6 |
id |
ftdoajarticles:oai:doaj.org/article:737bd17cbc86466c9e528f33c2bb8df6 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:737bd17cbc86466c9e528f33c2bb8df6 2023-05-15T13:25:44+02:00 Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes M. Eberhart S. Löhle A. Steinbeck T. Binder S. Fasoulas 2015-09-01T00:00:00Z https://doi.org/10.5194/amt-8-3701-2015 https://doaj.org/article/737bd17cbc86466c9e528f33c2bb8df6 EN eng Copernicus Publications http://www.atmos-meas-tech.net/8/3701/2015/amt-8-3701-2015.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-8-3701-2015 https://doaj.org/article/737bd17cbc86466c9e528f33c2bb8df6 Atmospheric Measurement Techniques, Vol 8, Iss 9, Pp 3701-3714 (2015) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2015 ftdoajarticles https://doi.org/10.5194/amt-8-3701-2015 2022-12-31T16:30:42Z The middle- and upper-atmospheric energy budget is largely dominated by reactions involving atomic oxygen (O). Modeling of these processes requires detailed knowledge about the distribution of this oxygen species. Understanding the mutual contributions of atomic oxygen and wave motions to the atmospheric heating is the main goal of the rocket project WADIS (WAve propagation and DISsipation in the middle atmosphere). It includes, amongst others, our instruments for the measurement of atomic oxygen that have both been developed with the aim of resolving density variations on small vertical scales along the trajectory. In this paper the instrument based on catalytic effects (PHLUX: Pyrometric Heat Flux Experiment) is introduced briefly. The experiment employing solid electrolyte sensors (FIPEX: Flux ϕ(Phi) Probe Experiment) is presented in detail. These sensors were laboratory calibrated using a microwave plasma as a source of atomic oxygen in combination with mass spectrometer reference measurements. The spectrometer was in turn calibrated for O with a method based on methane. In order to get insight into the horizontal variability, the rocket payload had instrument decks at both ends. Each housed several sensor heads measuring during both the up- and downleg of the trajectory. The WADIS project comprises two rocket flights during different geophysical conditions. Results from WADIS-1 are presented, which was successfully launched in June 2013 from the Andøya Space Center, Norway. FIPEX data were sampled at 100 Hz and yield atomic oxygen density profiles with a vertical resolution better than 9 m. This allows density variations to be studied on very small spatial scales. Numerical simulations of the flow field around the rocket were done at several points of the trajectory to assess the influence of aerodynamic effects on the measurement results. Density profiles peak at 3 × 10 10 cm −3 at altitudes of 93.6 and 96 km for the up- and downleg, respectively. Article in Journal/Newspaper Andøya Directory of Open Access Journals: DOAJ Articles Norway Andøya ENVELOPE(13.982,13.982,68.185,68.185) Atmospheric Measurement Techniques 8 9 3701 3714 |
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 M. Eberhart S. Löhle A. Steinbeck T. Binder S. Fasoulas Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
The middle- and upper-atmospheric energy budget is largely dominated by reactions involving atomic oxygen (O). Modeling of these processes requires detailed knowledge about the distribution of this oxygen species. Understanding the mutual contributions of atomic oxygen and wave motions to the atmospheric heating is the main goal of the rocket project WADIS (WAve propagation and DISsipation in the middle atmosphere). It includes, amongst others, our instruments for the measurement of atomic oxygen that have both been developed with the aim of resolving density variations on small vertical scales along the trajectory. In this paper the instrument based on catalytic effects (PHLUX: Pyrometric Heat Flux Experiment) is introduced briefly. The experiment employing solid electrolyte sensors (FIPEX: Flux ϕ(Phi) Probe Experiment) is presented in detail. These sensors were laboratory calibrated using a microwave plasma as a source of atomic oxygen in combination with mass spectrometer reference measurements. The spectrometer was in turn calibrated for O with a method based on methane. In order to get insight into the horizontal variability, the rocket payload had instrument decks at both ends. Each housed several sensor heads measuring during both the up- and downleg of the trajectory. The WADIS project comprises two rocket flights during different geophysical conditions. Results from WADIS-1 are presented, which was successfully launched in June 2013 from the Andøya Space Center, Norway. FIPEX data were sampled at 100 Hz and yield atomic oxygen density profiles with a vertical resolution better than 9 m. This allows density variations to be studied on very small spatial scales. Numerical simulations of the flow field around the rocket were done at several points of the trajectory to assess the influence of aerodynamic effects on the measurement results. Density profiles peak at 3 × 10 10 cm −3 at altitudes of 93.6 and 96 km for the up- and downleg, respectively. |
format |
Article in Journal/Newspaper |
author |
M. Eberhart S. Löhle A. Steinbeck T. Binder S. Fasoulas |
author_facet |
M. Eberhart S. Löhle A. Steinbeck T. Binder S. Fasoulas |
author_sort |
M. Eberhart |
title |
Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
title_short |
Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
title_full |
Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
title_fullStr |
Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
title_full_unstemmed |
Measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
title_sort |
measurement of atomic oxygen in the middle atmosphere using solid electrolyte sensors and catalytic probes |
publisher |
Copernicus Publications |
publishDate |
2015 |
url |
https://doi.org/10.5194/amt-8-3701-2015 https://doaj.org/article/737bd17cbc86466c9e528f33c2bb8df6 |
long_lat |
ENVELOPE(13.982,13.982,68.185,68.185) |
geographic |
Norway Andøya |
geographic_facet |
Norway Andøya |
genre |
Andøya |
genre_facet |
Andøya |
op_source |
Atmospheric Measurement Techniques, Vol 8, Iss 9, Pp 3701-3714 (2015) |
op_relation |
http://www.atmos-meas-tech.net/8/3701/2015/amt-8-3701-2015.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-8-3701-2015 https://doaj.org/article/737bd17cbc86466c9e528f33c2bb8df6 |
op_doi |
https://doi.org/10.5194/amt-8-3701-2015 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
8 |
container_issue |
9 |
container_start_page |
3701 |
op_container_end_page |
3714 |
_version_ |
1766387633869553664 |