Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign
<p>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...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-05-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/16/2297/2023/amt-16-2297-2023.pdf |
| _version_ | 1797835061316288512 |
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| author | U. Egerer U. Egerer U. Egerer J. J. Cassano J. J. Cassano J. J. Cassano M. D. Shupe M. D. Shupe G. de Boer G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef G. Jozef G. Jozef R. Calmer R. Calmer J. Hamilton J. Hamilton C. Pilz M. Lonardi |
| author_facet | U. Egerer U. Egerer U. Egerer J. J. Cassano J. J. Cassano J. J. Cassano M. D. Shupe M. D. Shupe G. de Boer G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef G. Jozef G. Jozef R. Calmer R. Calmer J. Hamilton J. Hamilton C. Pilz M. Lonardi |
| author_sort | U. Egerer |
| collection | DOAJ |
| description | <p>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.</p> |
| first_indexed | 2024-04-09T14:47:10Z |
| format | Article |
| id | doaj.art-e19eebe00d81462a8e20532a074cfbf2 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-04-09T14:47:10Z |
| publishDate | 2023-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-e19eebe00d81462a8e20532a074cfbf22023-05-02T13:58:24ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482023-05-01162297231710.5194/amt-16-2297-2023Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaignU. Egerer0U. Egerer1U. Egerer2J. J. Cassano3J. J. Cassano4J. J. Cassano5M. D. Shupe6M. D. Shupe7G. de Boer8G. de Boer9D. Lawrence10A. Doddi11H. Siebert12G. Jozef13G. Jozef14G. Jozef15R. Calmer16R. Calmer17J. Hamilton18J. Hamilton19C. Pilz20M. Lonardi21Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center (NSIDC), University of Colorado Boulder, Boulder, CO, USAnow at: National Renewable Energy Laboratory (NREL), Golden, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center (NSIDC), University of Colorado Boulder, Boulder, CO, USADepartment of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USAPhysical Sciences Laboratory, National Oceanic and Atmospheric Administration (NOAA), Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USAPhysical Sciences Laboratory, National Oceanic and Atmospheric Administration (NOAA), Boulder, CO, USASmead Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, CO, USASmead Aerospace Engineering Sciences, University of Colorado Boulder, Boulder, CO, USADepartment of Atmospheric Microphysics, Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, GermanyCooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center (NSIDC), University of Colorado Boulder, Boulder, CO, USADepartment of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USANational Snow and Ice Data Center (NSIDC), University of Colorado Boulder, Boulder, CO, USACooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, USAPhysical Sciences Laboratory, National Oceanic and Atmospheric Administration (NOAA), Boulder, CO, USADepartment of Atmospheric Microphysics, Leibniz Institute for Tropospheric Research (TROPOS), Leipzig, GermanyLeipzig Institute for Meteorology (LIM), Leipzig University, Leipzig, Germany<p>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.</p>https://amt.copernicus.org/articles/16/2297/2023/amt-16-2297-2023.pdf |
| spellingShingle | U. Egerer U. Egerer U. Egerer J. J. Cassano J. J. Cassano J. J. Cassano M. D. Shupe M. D. Shupe G. de Boer G. de Boer D. Lawrence A. Doddi H. Siebert G. Jozef G. Jozef G. Jozef R. Calmer R. Calmer J. Hamilton J. Hamilton C. Pilz M. Lonardi Estimating turbulent energy flux vertical profiles from uncrewed aircraft system measurements: exemplary results for the MOSAiC campaign Atmospheric Measurement Techniques |
| title | 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_short | 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 |
| url | https://amt.copernicus.org/articles/16/2297/2023/amt-16-2297-2023.pdf |
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