Citation:

PANGAEA.967086

Name: Aircraft measurements of backscatter ratio, particle depolarization and water vapour molecular density profiles over Arctic sea ice and ocean during the HALO-(AC)³ campaign in spring 2022
Published: 2024-04-09
License: https://creativecommons.org/licenses/by/4.0/
Keywords: airborne measurements; Arctic; HALO; HALO-(AC)³; Lidar

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Abstract:

During the HALO-(AC)³ campaign in March and April 2022 downward looking lidar profiles were measured onboard of the High Altitude LOng range research aircraft (HALO) over the Arctic sea ice and ocean using the airborne demonstrator for the WAter vapour Lidar Experiment in Space (WALES). The data set gives time series of profiles of backscatter ratio, particle depolarization and water vapour molecular density measured along the flight path of HALO on 17 days. All flights started from Kiruna, Sweden and headed into the Fram Straight and towards the central Arctic. The goal of the campaign was to study warm air intrusions and cold air outbreaks to and from the Arctic and to follow those air masses over several days with remote sensing instrumentation aboard HALO. The first research flight (RF) was RF02. RF01 was the transfer flight from Oberpfaffenhofen, Germany to Kiruna. Backscatter ratio and aerosol depolarization data is given with at one second time resolution and 15 m vertical binning at a wavelength of 532 nm. The backscatter profiles are extinction corrected using the High Spectral Resolution Lidar (HSRL) method. The water vapour profiles have a time resolution of 12 s and a vertical binning of 15 m. For H2O the vertical resolution is lower than given by the binning, where the real resolution is determined by an averaging kernel which is constant over height and has a full width at half maximum (FWHM) of 250 m. All data is regridded to a constant altitude scale over mean sea level, irrespective of the actual flight altitude.

Keyword(s):

airborne measurements; Arctic; HALO; HALO-(AC)³; Lidar

Related to:

Ehrlich, André; Ament, Felix; Aubry, Clemantyne; Crewell, Susanne; Dorff, Henning; Ewald, Florian; George, Geet; Giez, Andreas; Groß, Silke; Hirsch, Lutz; Jansen, Friedhelm; Kirbus, Benjamin; Klingebiel, Marcus; Konow, Heike; Luebke, Anna E; Mallaun, Christian; Mayer, Bernhard; Mech, Mario; Nenakhov, Vladyslav; Ori, Davide; Pörtge, Veronika; Ringel, Maximilian; Rosenburg, Sophie; Röttenbacher, Johannes; Schäfer, Michael; Volkmer, Lea; Walbröl, Andreas; Weber, Anna; Wendisch, Manfred; Wirth, Martin; Zinner, Tobias; Zöger, Martin: Collection of data sources from the HALO research aircraft for the HALO-(AC)³ field campaign, March/April 2022 [dataset bibliography]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.968885

Wirth, Martin; Fix, A; Mahnke, P; Schwarzer, H; Schrandt, F; Ehret, G (2009): The airborne multi-wavelength water vapor differential absorption lidar WALES: system design and performance. Applied Physics B-Lasers and Optics, 96(1), 201-213, https://doi.org/10.1007/s00340-009-3365-7

Project(s):

Arctic Amplification (AC3)

Atmospheric and Earth System Research with HALO – High Altitude and Long Range Research Aircraft (SPP1294)

Funding:

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

German Research Foundation (DFG), grant/award no. 28423678

Coverage:

Latitude: 67.830280 * Longitude: 20.338890

Date/Time Start: 2022-03-12T08:22:00 * Date/Time End: 2022-04-12T15:30:04

Event(s):

HALO_220312a (RF02) * Latitude Start: 67.830280 * Longitude Start: 20.338890 * Latitude End: 67.830280 * Longitude End: 20.338890 * Date/Time Start: 2022-03-12T08:22:00 * Date/Time End: 2022-03-12T16:44:06 * Campaign: * Basis: HALO * Method/Device: Aircraft (AC) * Comment: Kiruna - Kiruna

HALO_220313a (RF03) * Latitude Start: 67.830280 * Longitude Start: 20.338890 * Latitude End: 67.830280 * Longitude End: 20.338890 * Date/Time Start: 2022-03-13T08:04:00 * Date/Time End: 2022-03-13T16:52:49 * Campaign: * Basis: HALO * Method/Device: Aircraft (AC) * Comment: Kiruna - Kiruna

HALO_220314a (RF04) * Latitude Start: 67.830280 * Longitude Start: 20.338890 * Latitude End: 67.830280 * Longitude End: 20.338890 * Date/Time Start: 2022-03-14T08:45:00 * Date/Time End: 2022-03-14T17:19:06 * Campaign: * Basis: HALO * Method/Device: Aircraft (AC) * Comment: Kiruna - Kiruna

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device
1	Event label	Event		Wirth, Martin
2	Date/Time of event	Date/Time		Wirth, Martin
3	File content	Content		Wirth, Martin
4	netCDF file	netCDF		Wirth, Martin	Remote sensing (Light detection and ranging, LiDAR) (LiDAR)
5	netCDF file (File Size)	netCDF (Size)	Bytes	Wirth, Martin	Remote sensing (Light detection and ranging, LiDAR) (LiDAR)

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Basic curation (CurationLevelB)

Size:

102 data points

Data

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1 Event	2 Date/Time	3 Content	4 netCDF	5 netCDF (Size) [Bytes]
HALO_220312a	2022-03-12T08:22	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220312_RF02_V2.0.nc	440.6 MBytes
HALO_220313a	2022-03-13T08:04	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220313_RF03_V2.0.nc	449.7 MBytes
HALO_220314a	2022-03-14T08:45	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220314_RF04_V2.0.nc	344.1 MBytes
HALO_220315a	2022-03-15T09:04	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220315_RF05_V2.0.nc	451.8 MBytes
HALO_220316a	2022-03-16T08:58	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220316_RF06_V2.0.nc	471.8 MBytes
HALO_220320a	2022-03-20T07:58	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220320_RF07_V2.0.nc	402 MBytes
HALO_220321a	2022-03-21T08:48	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220321_RF08_V2.0.nc	336.3 MBytes
HALO_220328a	2022-03-28T08:36	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220328_RF09_V2.0.nc	362.4 MBytes
HALO_220329a	2022-03-29T07:53	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220329_RF10_V2.0.nc	367.2 MBytes
HALO_220330a	2022-03-30T07:56	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220330_RF11_V2.0.nc	412.1 MBytes
HALO_220401a	2022-04-01T07:29	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220401_RF12_V2.0.nc	396.9 MBytes
HALO_220404a	2022-04-04T07:26	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220404_RF13_V2.0.nc	416.1 MBytes
HALO_220407a	2022-04-07T08:33	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220407_RF14_V2.0.nc	318.6 MBytes
HALO_220408a	2022-04-08T04:25	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220408_RF15_V2.0.nc	299.1 MBytes
HALO_220410a	2022-04-10T09:54	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220410_RF16_V2.0.nc	302.8 MBytes
HALO_220411a	2022-04-11T07:55	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220411_RF17_V2.0.nc	327.2 MBytes
HALO_220412a	2022-04-12T07:24	particle depolarisation	HALO-AC3_HALO_WALES_adepgl_20220412_RF18_V2.0.nc	371.3 MBytes
HALO_220312a	2022-03-12T08:22	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220312_RF02_V2.0.nc	440.6 MBytes
HALO_220313a	2022-03-13T08:04	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220313_RF03_V2.0.nc	449.7 MBytes
HALO_220314a	2022-03-14T08:45	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220314_RF04_V2.0.nc	344.1 MBytes
HALO_220315a	2022-03-15T09:04	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220315_RF05_V2.0.nc	451.8 MBytes
HALO_220316a	2022-03-16T08:58	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220316_RF06_V2.0.nc	471.8 MBytes
HALO_220320a	2022-03-20T07:58	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220320_RF07_V2.0.nc	402 MBytes
HALO_220321a	2022-03-21T08:48	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220321_RF08_V2.0.nc	336.3 MBytes
HALO_220328a	2022-03-28T08:36	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220328_RF09_V2.0.nc	362.4 MBytes
HALO_220329a	2022-03-29T07:53	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220329_RF10_V2.0.nc	367.2 MBytes
HALO_220330a	2022-03-30T07:56	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220330_RF11_V2.0.nc	412.1 MBytes
HALO_220401a	2022-04-01T07:29	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220401_RF12_V2.0.nc	396.9 MBytes
HALO_220404a	2022-04-04T07:26	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220404_RF13_V2.0.nc	416.1 MBytes
HALO_220407a	2022-04-07T08:33	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220407_RF14_V2.0.nc	318.6 MBytes
HALO_220408a	2022-04-08T04:25	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220408_RF15_V2.0.nc	299.1 MBytes
HALO_220410a	2022-04-10T09:54	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220410_RF16_V2.0.nc	302.8 MBytes
HALO_220411a	2022-04-11T07:55	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220411_RF17_V2.0.nc	327.2 MBytes
HALO_220412a	2022-04-12T07:24	backscatter ratio	HALO-AC3_HALO_WALES_bsrgl_20220412_RF18_V2.0.nc	371.3 MBytes
HALO_220312a	2022-03-12T08:22	water vapour	HALO-AC3_HALO_WALES_wv_20220312_RF02_V2.0.nc	84.8 MBytes
HALO_220313a	2022-03-13T08:04	water vapour	HALO-AC3_HALO_WALES_wv_20220313_RF03_V2.0.nc	90.5 MBytes
HALO_220314a	2022-03-14T08:45	water vapour	HALO-AC3_HALO_WALES_wv_20220314_RF04_V2.0.nc	72.4 MBytes
HALO_220315a	2022-03-15T09:04	water vapour	HALO-AC3_HALO_WALES_wv_20220315_RF05_V2.0.nc	89.5 MBytes
HALO_220316a	2022-03-16T08:58	water vapour	HALO-AC3_HALO_WALES_wv_20220316_RF06_V2.0.nc	97.9 MBytes
HALO_220320a	2022-03-20T07:58	water vapour	HALO-AC3_HALO_WALES_wv_20220320_RF07_V2.0.nc	80 MBytes
HALO_220321a	2022-03-21T08:48	water vapour	HALO-AC3_HALO_WALES_wv_20220321_RF08_V2.0.nc	74.3 MBytes
HALO_220328a	2022-03-28T08:36	water vapour	HALO-AC3_HALO_WALES_wv_20220328_RF09_V2.0.nc	78.1 MBytes
HALO_220329a	2022-03-29T07:53	water vapour	HALO-AC3_HALO_WALES_wv_20220329_RF10_V2.0.nc	72 MBytes
HALO_220330a	2022-03-30T07:56	water vapour	HALO-AC3_HALO_WALES_wv_20220330_RF11_V2.0.nc	49.5 MBytes
HALO_220401a	2022-04-01T07:29	water vapour	HALO-AC3_HALO_WALES_wv_20220401_RF12_V2.0.nc	81.5 MBytes
HALO_220404a	2022-04-04T07:26	water vapour	HALO-AC3_HALO_WALES_wv_20220404_RF13_V2.0.nc	87.6 MBytes
HALO_220407a	2022-04-07T08:33	water vapour	HALO-AC3_HALO_WALES_wv_20220407_RF14_V2.0.nc	74.3 MBytes
HALO_220408a	2022-04-08T04:25	water vapour	HALO-AC3_HALO_WALES_wv_20220408_RF15_V2.0.nc	72.4 MBytes
HALO_220410a	2022-04-10T09:54	water vapour	HALO-AC3_HALO_WALES_wv_20220410_RF16_V2.0.nc	64.9 MBytes
HALO_220411a	2022-04-11T07:55	water vapour	HALO-AC3_HALO_WALES_wv_20220411_RF17_V2.0.nc	72.2 MBytes
HALO_220412a	2022-04-12T07:24	water vapour	HALO-AC3_HALO_WALES_wv_20220412_RF18_V2.0.nc	78.1 MBytes