| _version_ | 1867172345547849728 |
|---|---|
| author | Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Hofer, Julian Althausen, Dietrich |
| author_facet | Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Hofer, Julian Althausen, Dietrich |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | 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. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_961789 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Low-level stratus mask from Polarstern during MOSAiC Griesche, Hannes Seifert, Patric Engelmann, Ronny Radenz, Martin Hofer, Julian Althausen, Dietrich AC3; ACTRIS-2; Aerosols, Clouds, and Trace gases Research InfraStructure; Arctic; Arctic Amplification; Arctic Ocean; ATMOBS; Atmospheric Observatory; clouds; DATE/TIME; Event label; LATITUDE; Lidar; LONGITUDE; low-level clouds; MOSAiC; MOSAiC20192020; MOSAiC expedition; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Multiwavelength Raman and Depolarization Lidar, TROPOS, Polly-XT; netCDF file; netCDF file (File Size); North Greenland Sea; OCEANET; Other event; Polarstern; PS122/1; PS122/1_1-38; PS122/2; PS122/2_14-18; PS122/3; PS122/3_28-6; PS122/4; PS122/4_43-11; PS122/4_43-145; PS122/5; PS122/5_58-3 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. |
| title | Low-level stratus mask from Polarstern during MOSAiC |
| topic | AC3; ACTRIS-2; Aerosols, Clouds, and Trace gases Research InfraStructure; Arctic; Arctic Amplification; Arctic Ocean; ATMOBS; Atmospheric Observatory; clouds; DATE/TIME; Event label; LATITUDE; Lidar; LONGITUDE; low-level clouds; MOSAiC; MOSAiC20192020; MOSAiC expedition; Multidisciplinary drifting Observatory for the Study of Arctic Climate; Multiwavelength Raman and Depolarization Lidar, TROPOS, Polly-XT; netCDF file; netCDF file (File Size); North Greenland Sea; OCEANET; Other event; Polarstern; PS122/1; PS122/1_1-38; PS122/2; PS122/2_14-18; PS122/3; PS122/3_28-6; PS122/4; PS122/4_43-11; PS122/4_43-145; PS122/5; PS122/5_58-3 |
| url | https://doi.org/10.1594/PANGAEA.961789 |