Griesche, Hannes; Seifert, Patric; Engelmann, Ronny; Radenz, Martin; Hofer, Julian; Althausen, Dietrich (2023): Low-level stratus mask from Polarstern during MOSAiC [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961789
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Abstract:
Daily files of low-level stratus (LLS) for the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition (Shupe et al., 2022). The LLS was detected following Griesche et al. (2020) based on near-range data from PollyXT (Engelmann et al., 2016) to extend the Cloudnet cloud properties derived for MOSAiC (Engelmann et al. 2023; doi:10.60656/59216bca3a304156) into the bild zone of the cloud radar (i.e. below 180 m altitude). The applied method was updated to the use of the attenuated backscatter (att bsc) instead of the signal-to-noise ratio to reduce the influence of changes in the system constant on the LLS detection. An LLS was identified when the att bsc exceeded a threshold of 4e-06 sr-1 m-1 below 180 m. Data issues caused by external drivers are documented in a separate issue tracking file (Griesche & Seifert, 2023; doi:10.5281/zenodo.7310858). Flagged data must be handled with care and should be excluded from statistical analyses. Issues tracking flags are identified by tethered balloon operation periods and experienced-eye observations of MOSAiC staff.
Related to:
Engelmann, Ronny; Althausen, Dietrich; Baars, Holger; Griesche, Hannes; Hofer, Julian; Radenz, Martin; Seifert, Patric (2023): Custom collection of categorize, classification, ice water content, lidar, and liquid water content data from RV Polarstern between 1 Oct 2019 and 1 Oct 2020. ACTRIS Cloud remote sensing data centre unit (CLU), https://doi.org/10.60656/59216BCA3A304156
Griesche, Hannes; Seifert, Patric (2023): MOSAiC Cloudnet issue data set. Zenodo, https://doi.org/10.5281/ZENODO.7310858
References:
Engelmann, Ronny; Kanitz, Thomas; Baars, Holger; Heese, Birgit; Althausen, Dietrich; Skupin, Annett; Wandinger, Ulla; Komppula, Mika; Stachlewska, Iwona S; Amiridis, Vassilis; Miranou, Eleni; Matthis, Ina; Linné, Holger; Ansmann, Albert (2016): The automated multiwavelength Raman polarization and water-vapor lidar PollyXT: the neXT generation. Atmospheric Measurement Techniques, 9(4), 1767-1784, https://doi.org/10.5194/amt-9-1767-2016
Griesche, Hannes; Seifert, Patric; Ansmann, Albert; Baars, Holger; Barrientos Velasco, Carola; Bühl, Johannes; Engelmann, Ronny; Radenz, Martin; Zhenping, Yin; Macke, Andreas (2020): Application of the shipborne remote sensing supersite OCEANET for profiling of Arctic aerosols and clouds during Polarstern cruise PS106. Atmospheric Measurement Techniques, 13(10), 5335-5358, https://doi.org/10.5194/amt-13-5335-2020
Shupe, Matthew D; Rex, Markus; Blomquist, Byron; Persson, P Ola G; Schmale, Julia; Uttal, Taneil; Althausen, Dietrich; Angot, Hélène; Archer, Stephen; Bariteau, Ludovic; Beck, Ivo; Bilberry, John; Bucci, Silvia; Buck, Clifton S; Boyer, Matt; Brasseur, Zoé; Brooks, Ian M; Calmer, Radiance; Cassano, John J; Castro, Vagner; Chu, David; Costa, David; Cox, Christopher J; Creamean, Jessie; Crewell, Susanne; Dahlke, Sandro; Damm, Ellen; de Boer, Gijs; Deckelmann, Holger; Dethloff, Klaus; Dütsch, Marina; Ebell, Kerstin; Ehrlich, André; Ellis, Jody; Engelmann, Ronny; Fong, Allison A; Frey, Markus M; Gallagher, Michael R; Ganzeveld, Laurens; Gradinger, Rolf; Graeser, Jürgen; Greenamyer, Vernon; Griesche, Hannes; Griffiths, Steele; Hamilton, Jonathan; Heinemann, Günther; Helmig, Detlev; Herber, Andreas; Heuzé, Céline; Hofer, Julian; Houchens, Todd; Howard, Dean; Inoue, Jun; Jacobi, Hans-Werner; Jaiser, Ralf; Jokinen, Tuija; Jourdan, Olivier; Jozef, Gina; King, Wessley; Kirchgaessner, Amelie; Klingebiel, Marcus; Krassovski, Misha; Krumpen, Thomas; Lampert, Astrid; Landing, William M; Laurila, Tiia; Lawrence, Dale; Lonardi, Michael; Loose, Brice; Lüpkes, Christof; Maahn, Maximilian; Macke, Andreas; Maslowski, Wieslaw; Marsay, Christopher M; Maturilli, Marion; Mech, Mario; Morris, Sara; Moser, Manuel; Nicolaus, Marcel; Ortega, Paul; Osborn, Jackson; Pätzold, Falk; Perovich, Donald K; Petäjä, Tuukka; Pilz, Christian; Pirazzini, Roberta; Posman, Kevin; Powers, Heath; Pratt, Kerri A; Preußer, Andreas; Quéléver, Lauriane; Radenz, Martin; Rabe, Benjamin; Rinke, Annette; Sachs, Torsten; Schulz, Alexander; Siebert, Holger; Silva, Tercio; Solomon, Amy; Sommerfeld, Anja; Spreen, Gunnar; Stephens, Mark; Stohl, Andreas; Svensson, Gunilla; Uin, Janek; Viegas, Juarez; Voigt, Christiane; von der Gathen, Peter; Wehner, Birgit; Welker, Jeffrey M; Wendisch, Manfred; Werner, Martin; Xie, Zhouqing; Yue, Fange (2022): Overview of the MOSAiC expedition: Atmosphere. Elementa - Science of the Anthropocene, 10(1), https://doi.org/10.1525/elementa.2021.00060
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Horizon 2020 (H2020), grant/award no. 654109: Aerosols, Clouds, and Trace gases Research InfraStructure (ACTRIS-2)
Coverage:
Median Latitude: 83.919401 * Median Longitude: 60.911276 * South-bound Latitude: 78.686763 * West-bound Longitude: -6.126275 * North-bound Latitude: 88.413593 * East-bound Longitude: 137.750080
Date/Time Start: 2019-09-30T18:00:00 * Date/Time End: 2020-10-01T23:59:30
Event(s):
PS122/1_1-38 * Latitude Start: 85.112498 * Longitude Start: 137.750080 * Latitude End: 86.593190 * Longitude End: 119.241500 * Date/Time Start: 2019-09-30T06:00:00 * Date/Time End: 2019-12-13T09:04:45 * Sensor URI: sensor.awi.de * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Atmospheric Observatory (ATMOBS)
PS122/2_14-18 * Latitude: 86.593231 * Longitude: 119.237001 * Date/Time: 2019-12-13T09:11:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/2 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Atmospheric Observatory (ATMOBS) * Comment: Recording continued from Leg 1
PS122/3_28-6 * Latitude: 88.413593 * Longitude: 36.829898 * Date/Time: 2020-02-27T10:57:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/3 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Atmospheric Observatory (ATMOBS)
Domain attribute(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Griesche, Hannes | |||
| 2 | Other event | Other event | Griesche, Hannes | |||
| 3 | netCDF file | netCDF | Griesche, Hannes | Multiwavelength Raman and Depolarization Lidar, TROPOS, Polly-XT | ||
| 4 | netCDF file (File Size) | netCDF (Size) | Bytes | Griesche, Hannes | Multiwavelength Raman and Depolarization Lidar, TROPOS, Polly-XT | |
| 5 | DATE/TIME | Date/Time | Griesche, Hannes | Geocode – start | ||
| 6 | LATITUDE | Latitude | Griesche, Hannes | Geocode – start | ||
| 7 | LONGITUDE | Longitude | Griesche, Hannes | Geocode – start | ||
| 8 | DATE/TIME | Date/Time | Griesche, Hannes | Geocode – end | ||
| 9 | LATITUDE | Latitude | Griesche, Hannes | Geocode – end | ||
| 10 | LONGITUDE | Longitude | Griesche, Hannes | Geocode – end |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Basic curation (CurationLevelB) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
366 data points