Citation:

PANGAEA.976475

Name: High resolution airborne measurements of wind and temperature during the BACSAM II campaign in April 2024
Published: 2025-02-26
License: https://creativecommons.org/licenses/by/4.0/
Keywords: airborne; Arctic; Polar 6; turbulence

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Published: 2025-02-26 • DOI registered: 2025-03-27

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Abstract:

During research flight 09 (RF09) of the airborne measurement campaign Boundary layer and Aerosol and Cloud Study in the Arctic, based on aircraft and T-Bird Measurements (BACSAM) II, meteorological data (temperature, 3 wind components, air pressure) were measured at high temporal resolution (100 Hz) onboard the towed body T-Bird. The T-Bird is introduced in detail in Juranyi et al., 2025, details concerning RF09 can be found in Simon et al., 2025 (in prep).

RF09 took place on 25 April 2024 and started and ended in Longyearbyen, Svalbard. Data are only reported for the times the T-Bird was winched out and flying below the aircraft. Temperatures are measured by an open wire Pt100 in an unheated Rosemount housing. An Aventech 5-hole-probe at the tip of the T-Bird facilitates fast turbulence measurements. Full accuracy of the wind measurements is only achieved during straight flight level sections. We refer to Hartmann et al. (2018, doi:10.5194/amt-11-4567-2018) for further information on the data processing and calibration.

Keyword(s):

airborne; Arctic; Polar 6; turbulence

Related to:

Hartmann, Jörg; Gehrmann, Martin; Kohnert, Katrin; Metzger, Stefan; Sachs, Torsten (2018): New calibration procedures for airborne turbulence measurements and accuracy of the methane fluxes during the AirMeth campaigns. Atmospheric Measurement Techniques, 11(7), 4567-4581, https://doi.org/10.5194/amt-11-4567-2018

References:

Jurányi, Zsófia; Lüpkes, Christof; Stratmann, Frank; Hartmann, Jörg; Schaefer, Jonas; Jörss, Anna-Marie; Schulz, Alexander; Wetzel, Bruno; Simon, David J; Gebhard, Eduard; Stöhr, Maximilian; Hofmann, Paula; Kalmbach, Dirk; Grawe, Sarah; Herber, Andreas (in press): The T-Bird – A new aircraft-towed instrument platform to measure turbulence and aerosol properties close to the surface: Introduction to the aerosol measurement system. EGUsphere, https://doi.org/10.5194/egusphere-2025-619

Simon, David J (in prep.): Turbulent Aerosol Fluxes from Airborne Measurements over the Arctic Ocean. Geophysical Research Letters

Project(s):

Arctic Amplification (AC3)

Funding:

German Research Foundation (DFG), grant/award no. 268020496 : TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms

Coverage:

Median Latitude: 76.215170 * Median Longitude: 13.696811 * South-bound Latitude: 75.799770 * West-bound Longitude: 12.343400 * North-bound Latitude: 76.824190 * East-bound Longitude: 15.311290

Date/Time Start: 2024-04-25T09:09:38 * Date/Time End: 2024-04-25T11:59:03

Minimum ALTITUDE: 34 m * Maximum ALTITUDE: 3009 m

Event(s):

P6-247_BACSAM2_2024_2404251101 * Latitude Start: 78.245956 * Longitude Start: 15.501670 * Latitude End: 78.245945 * Longitude End: 15.501618 * Date/Time Start: 2024-04-25T08:19:42 * Date/Time End: 2024-04-25T12:39:40 * Campaign: (BACSAM II) * Basis: POLAR 6 * Method/Device: Aircraft (AC)

Comment:

Acknowledgement

We gratefully acknowledge the funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) – Project Number 268020496 – TRR 172, within the framework of the Transregional Collaborative Research Center "ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms (AC)³.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	DATE/TIME	Date/Time		Hartmann, Jörg		Geocode
2	Time in seconds	Time	s	Hartmann, Jörg		UTC, since midnight
3	ALTITUDE	Altitude	m	Hartmann, Jörg		Geocode
4	LONGITUDE	Longitude		Hartmann, Jörg		Geocode
5	LATITUDE	Latitude		Hartmann, Jörg		Geocode
6	Pressure, at given altitude	PPPP	hPa	Hartmann, Jörg		static
7	Ground speed	Ground speed	m/s	Hartmann, Jörg
8	Pitch angle	Pitch	deg	Hartmann, Jörg
9	Roll angle	Roll	deg	Hartmann, Jörg
10	Temperature, air	TTT	°C	Hartmann, Jörg	Thermometer, PT100	corrected for adiabatic heating
11	Wind velocity, west-east	U	m/s	Hartmann, Jörg
12	Wind velocity, south-north	V	m/s	Hartmann, Jörg
13	Wind velocity, vertical	W	m/s	Hartmann, Jörg
14	True air speed	TAS	m/s	Hartmann, Jörg

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

10165010 data points

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Datasets with similar metadata

Simon, DJ; Schaefer, J; Hartmann, M et al. (2025): Size-resolved airborne in-situ measurements of aerosol particle number concentrations during the BACSAM II campaign in April 2024. https://doi.org/10.1594/PANGAEA.976469
Lüpkes, C; Hartmann, J; Michaelis, J et al. (2024): High resolution aircraft measurements of wind and temperature of the HALO-AC3 campaign in 2022 (100Hz). https://doi.org/10.1594/PANGAEA.968952
Hartmann, J; Lüpkes, C; Michaelis, J et al. (2022): High resolution aircraft measurements of wind and temperature during the MOSAIC-ACA campaign in 2020. https://doi.org/10.1594/PANGAEA.947787