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Kliesch, Leif-Leonard; Mech, Mario (2019): Airborne radar reflectivity and brightness temperature measurements with POLAR 5 during ACLOUD in May and June 2017. PANGAEA, https://doi.org/10.1594/PANGAEA.899565, Supplement to: Mech, Mario; Kliesch, Leif-Leonard; Anhäuser, Andreas; Rose, Thomas; Kollias, Pavlos; Crewell, Susanne (2019): Microwave Radar/radiometer for Arctic Clouds (MiRAC): first insights from the ACLOUD campaign. Atmospheric Measurement Techniques, 12(9), 5019-5037, https://doi.org/10.5194/amt-12-5019-2019

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Abstract:
During the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign in summer 2017 conducted from Longyearbyen/Svalbard, a combination of active and passive microwave instruments MiRAC (Microwave Radar/radiometer for Arctic Clouds) has been operated on board of the Polar 5 research aircraft of the Alfred-Wegener Institute for polar and ocean research (AWI). MiRAC contains a Frequency Modulated Continuous Wave (FMCW) radar at 94 GHz mounted in a belly pod under 25deg backwards inclined with respect to nadir. Included is also the 89 GHz passive channel and a passive microwave instrument with six channels in the 183 GHz water vapor line and channels at 243 and 340 GHz installed nadir pointing in the cabin.
The data set was collected during approximately 80 flight hours in May/June 2017 northwest of Svalbard over the Arctic ocean and sea ice. It contains the unfiltered reflectivity profiles as well as the filtered profiles. Both profiles are corrected for aircraft motion and instrument/aircraft orientation. The filters consider disturbances due to the signal processing, side lobe effects, and removal of speckles. Furthermore, quality flags for the radar reflectivity are included in the data set. For the passive component, the brightness temperatures at 89 GHz are included without considering the observation geometry. The data set is completed by information recorded by the aircraft system (latitude, longitude, flight height, pitch, roll, and flight speed). The data are stored as netCDF format and each file contains data for one research flight (except for the 17th and 23rd of June 2017). For the higher passive microwave channels a separate dataset will be provided.
For detailed information on the instruments and the processing see Mech and Kliesch et al. 2019 (doi:10.5194/amt-2019-151).
The campaign ACLOUD is described in Wendisch et al. 2018 (doi:10.1175/BAMS-D-18-0072.1).
Keyword(s):
ACLOUD; airborne; Arctic; brightness temperature; clouds; FMCW; microwave; MiRAC; radar; radar reflectivity; radiometer
Related to:
Ehrlich, André; Wendisch, Manfred; Lüpkes, Christof; Buschmann, Matthias; Bozem, Heiko; Chechin, Dmitry; Clemen, Hans-Christian; Dupuy, Regis; Eppers, Oliver; Hartmann, Jörg; Herber, Andreas; Jäkel, Evelyn; Järvinen, Emma; Jourdan, Olivier; Kästner, Udo; Kliesch, Leif-Leonard; Köllner, Franziska; Mech, Mario; Mertes, Stephan; Neuber, Roland; Ruiz-Donoso, Elena; Schnaiter, Martin; Schneider, Johannes; Stapf, Johannes; Zanatta, Marco (2019): Collection of data sources for the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign, North-West of Svalbard between 23 May - 26 June 2017. PANGAEA, https://doi.org/10.1594/PANGAEA.902603
Wendisch, Manfred; Macke, Andreas; Ehrlich, André; Lüpkes, Christof; Mech, Mario; Chechin, Dmitry; Dethloff, Klaus; Barientos, Carola; Bozem, Heiko; Brückner, Marlen; Clemen, Hans-Christian; Crewell, Susanne; Donth, Tobias; Dupuy, Regis; Ebell, Kerstin; Egerer, Ulrike; Engelmann, Ronny; Engler, Christa; Eppers, Oliver; Gehrmann, Martin; Gong, Xianda; Gottschalk, Matthias; Gourbeyre, Christophe; Griesche, Hannes; Hartmann, Jörg; Hartmann, Markus; Heinold, Bernd; Herber, Andreas; Herrmann, Hartmut; Heygster, Georg; Hoor, Peter; Jafariserajehlou, Soheila; Jäkel, Evelyn; Järvinen, Emma; Jourdan, Olivier; Kästner, Udo; Kecorius, Simonas; Knudsen, Erlend M; Köllner, Franziska; Kretzschmar, Jan; Lelli, Luca; Leroy, Delphine; Maturilli, Marion; Mei, Linlu; Mertes, Stephan; Mioche, Guillaume; Neuber, Roland; Nicolaus, Marcel; Nomokonova, Tatiana; Notholt, Justus; Palm, Mathias; van Pinxteren, Manuela; Quaas, Johannes; Richter, Philipp; Ruiz-Donoso, Elena; Schäfer, Michael; Schmieder, Katja; Schnaiter, Martin; Schneider, Johannes; Schwarzenböck, Alfons; Seifert, Patric; Shupe, Matthew D; Siebert, Holger; Spreen, Gunnar; Stapf, Johannes; Stratmann, Frank; Vogl, Teresa; Welti, André; Wex, Heike; Wiedensohler, Alfred; Zanatta, Marco; Zeppenfeld, Sebastian (2019): The Arctic Cloud Puzzle: Using ACLOUD/PASCAL Multiplatform Observations to Unravel the Role of Clouds and Aerosol Particles in Arctic Amplification. Bulletin of the American Meteorological Society, 100(5), 841–871, https://doi.org/10.1175/BAMS-D-18-0072.1
Project(s):
Coverage:
Median Latitude: 78.245798 * Median Longitude: 15.503955 * South-bound Latitude: 78.245720 * West-bound Longitude: 15.503630 * North-bound Latitude: 78.245835 * East-bound Longitude: 15.504170
Date/Time Start: 2017-05-23T08:51:07 * Date/Time End: 2017-06-26T15:24:02
Event(s):
P5_206_ACLOUD_2017_1705230601 (Flight 04) * Latitude Start: 78.245819 * Longitude Start: 15.504000 * Latitude End: 78.245797 * Longitude End: 15.503944 * Date/Time Start: 2017-05-23T08:51:07 * Date/Time End: 2017-05-23T14:31:04 * Campaign: P5_206_ACLOUD_2017 (Arctic Cloud Observations Using airborne measurements during polar Day) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
P5_206_ACLOUD_2017_1705250701 (Flight 05) * Latitude Start: 78.245793 * Longitude Start: 15.503991 * Latitude End: 78.245791 * Longitude End: 15.503885 * Date/Time Start: 2017-05-25T08:01:26 * Date/Time End: 2017-05-25T12:52:25 * Campaign: P5_206_ACLOUD_2017 (Arctic Cloud Observations Using airborne measurements during polar Day) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
P5_206_ACLOUD_2017_1705270801 (Flight 06) * Latitude Start: 78.245792 * Longitude Start: 15.503888 * Latitude End: 78.245726 * Longitude End: 15.504026 * Date/Time Start: 2017-05-27T07:44:04 * Date/Time End: 2017-05-27T11:33:01 * Campaign: P5_206_ACLOUD_2017 (Arctic Cloud Observations Using airborne measurements during polar Day) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
Comment:
Please note, that on 2019-07-29 the lat/long within the netCDF files RF05, RF06 and RF07 was corrected.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventKliesch, Leif-Leonard
2Date/Time of eventDate/TimeKliesch, Leif-Leonard
3File nameFile nameKliesch, Leif-Leonard
4File formatFile formatKliesch, Leif-Leonard
5File sizeFile sizekByteKliesch, Leif-Leonard
6Uniform resource locator/link to fileURL fileKliesch, Leif-Leonard
Size:
88 data points

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