Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign
This study analyzes turbulent energy fluxes in the Arctic atmospheric boundary layer (ABL) using measurements with a small uncrewed aircraft system (sUAS). Turbulent fluxes constitute a major part of the atmospheric energy budget and influence the surface heat balance by distributing energy vertical...
Published in: | Atmospheric Measurement Techniques |
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Online Access: | https://doi.org/10.5194/amt-16-2297-2023 https://doaj.org/article/e19eebe00d81462a8e20532a074cfbf2 |
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ftdoajarticles:oai:doaj.org/article:e19eebe00d81462a8e20532a074cfbf2 2023-06-11T04:08:40+02:00 Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign U. Egerer J. J. Cassano M. D. Shupe G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef R. Calmer J. Hamilton C. Pilz M. Lonardi 2023-05-01T00:00:00Z https://doi.org/10.5194/amt-16-2297-2023 https://doaj.org/article/e19eebe00d81462a8e20532a074cfbf2 EN eng Copernicus Publications https://amt.copernicus.org/articles/16/2297/2023/amt-16-2297-2023.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-16-2297-2023 1867-1381 1867-8548 https://doaj.org/article/e19eebe00d81462a8e20532a074cfbf2 Atmospheric Measurement Techniques, Vol 16, Pp 2297-2317 (2023) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2023 ftdoajarticles https://doi.org/10.5194/amt-16-2297-2023 2023-05-07T00:34:41Z This study analyzes turbulent energy fluxes in the Arctic atmospheric boundary layer (ABL) using measurements with a small uncrewed aircraft system (sUAS). Turbulent fluxes constitute a major part of the atmospheric energy budget and influence the surface heat balance by distributing energy vertically in the atmosphere. However, only few in situ measurements of the vertical profile of turbulent fluxes in the Arctic ABL exist. The study presents a method to derive turbulent heat fluxes from DataHawk2 sUAS turbulence measurements, based on the flux gradient method with a parameterization of the turbulent exchange coefficient. This parameterization is derived from high-resolution horizontal wind speed measurements in combination with formulations for the turbulent Prandtl number and anisotropy depending on stability. Measurements were taken during the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) expedition in the Arctic sea ice during the melt season of 2020. For three example cases from this campaign, vertical profiles of turbulence parameters and turbulent heat fluxes are presented and compared to balloon-borne, radar, and near-surface measurements. The combination of all measurements draws a consistent picture of ABL conditions and demonstrates the unique potential of the presented method for studying turbulent exchange processes in the vertical ABL profile with sUAS measurements. Article in Journal/Newspaper Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Atmospheric Measurement Techniques 16 8 2297 2317 |
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 U. Egerer J. J. Cassano M. D. Shupe G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef R. Calmer J. Hamilton C. Pilz M. Lonardi Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
This study analyzes turbulent energy fluxes in the Arctic atmospheric boundary layer (ABL) using measurements with a small uncrewed aircraft system (sUAS). Turbulent fluxes constitute a major part of the atmospheric energy budget and influence the surface heat balance by distributing energy vertically in the atmosphere. However, only few in situ measurements of the vertical profile of turbulent fluxes in the Arctic ABL exist. The study presents a method to derive turbulent heat fluxes from DataHawk2 sUAS turbulence measurements, based on the flux gradient method with a parameterization of the turbulent exchange coefficient. This parameterization is derived from high-resolution horizontal wind speed measurements in combination with formulations for the turbulent Prandtl number and anisotropy depending on stability. Measurements were taken during the MOSAiC (Multidisciplinary drifting Observatory for the Study of Arctic Climate) expedition in the Arctic sea ice during the melt season of 2020. For three example cases from this campaign, vertical profiles of turbulence parameters and turbulent heat fluxes are presented and compared to balloon-borne, radar, and near-surface measurements. The combination of all measurements draws a consistent picture of ABL conditions and demonstrates the unique potential of the presented method for studying turbulent exchange processes in the vertical ABL profile with sUAS measurements. |
format |
Article in Journal/Newspaper |
author |
U. Egerer J. J. Cassano M. D. Shupe G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef R. Calmer J. Hamilton C. Pilz M. Lonardi |
author_facet |
U. Egerer J. J. Cassano M. D. Shupe G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef R. Calmer J. Hamilton C. Pilz M. Lonardi |
author_sort |
U. Egerer |
title |
Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign |
title_short |
Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign |
title_full |
Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign |
title_fullStr |
Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign |
title_full_unstemmed |
Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign |
title_sort |
estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the mosaic campaign |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/amt-16-2297-2023 https://doaj.org/article/e19eebe00d81462a8e20532a074cfbf2 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Atmospheric Measurement Techniques, Vol 16, Pp 2297-2317 (2023) |
op_relation |
https://amt.copernicus.org/articles/16/2297/2023/amt-16-2297-2023.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 doi:10.5194/amt-16-2297-2023 1867-1381 1867-8548 https://doaj.org/article/e19eebe00d81462a8e20532a074cfbf2 |
op_doi |
https://doi.org/10.5194/amt-16-2297-2023 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
16 |
container_issue |
8 |
container_start_page |
2297 |
op_container_end_page |
2317 |
_version_ |
1768382084194238464 |