Walbröl, Andreas; Mech, Mario: Specific humidity profiles derived from the combination of low- and high-frequency microwave radiometer measurements on Polarstern cruise PS144 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993160 (dataset in review)
Abstract:
This data set contains daily files of specific humidity profiles derived from combined measurements of the low- and high-frequency microwave radiometers HATPRO (Humidity And Temperature PROfiler, Rose et al., 2005) and MiRAC-P (Microwave Radar/Radiometer for Arctic Clouds - Passive, Mech et al., 2019) on Polarstern cruise PS144 (Rabe & Geibert, 2025). The data set covers the date range from 12 August to 7 October 2024 and is limited to 0-10000 m height above the instrument. The specific humidity profile retrieval is based on a Neural Network whose configuration and training is described in Walbröl et al. (2024). The effective vertical resolution of the specific humidity profile is 600 m at the surface and increases to 7500 m at 10000 m height (Walbröl et al., 2024).
Related to:
Bühler, Linnu; Rückert, Janna Elisabeth; Walbröl, Andreas; Mech, Mario; Risse, Nils; Krobot, Pavel; Ebell, Kerstin; Schnitt, Sabrina; Spreen, Gunnar (2026): Water vapor, mixed-phase clouds, precipitation and sea ice emissivity over the Central Arctic Ocean (VAMPIRE-1): remote sensing and in-situ measurements suite during POLARSTERN cruise PS144 (ArcWatch-2) [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.990496
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
Rabe, Benjamin; Geibert, Walter (2025): The Expedition PS144 of the Research Vessel POLARSTERN to the Arctic Ocean in 2023 /2024. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 794, 312 pp, https://doi.org/10.57738/BZPM_0794_2025
Rose, Thomas; Crewell, Susanne; Löhnert, Ulrich; Simmer, Clemens (2005): A network suitable microwave radiometer for operational monitoring of the cloudy atmosphere. Atmospheric Research, 75(3), 183-200, https://doi.org/10.1016/j.atmosres.2004.12.005
Walbröl, Andreas; Griesche, Hannes; Mech, Mario; Crewell, Susanne; Ebell, Kerstin (2024): Combining low- and high-frequency microwave radiometer measurements from the MOSAiC expedition for enhanced water vapour products. Atmospheric Measurement Techniques, 17(20), 6223-6245, https://doi.org/10.5194/amt-17-6223-2024
Project(s):
Arctic Amplification (AC3)
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS144_06: SeaIcePhys. (ArcWatch1/TransArc3)
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 70.322744 * Median Longitude: 16.064755 * South-bound Latitude: 69.747320 * West-bound Longitude: 12.693690 * North-bound Latitude: 71.131707 * East-bound Longitude: 19.142440
Date/Time Start: 2024-08-09T08:00:00 * Date/Time End: 2024-10-08T12:08:45
Event(s):
PS144_0_Underway-14 (PROfiler FOGHAT) * Latitude Start: 69.747320 * Longitude Start: 19.142440 * Latitude End: 71.131707 * Longitude End: 13.280451 * Date/Time Start: 2024-08-09T08:00:00 * Date/Time End: 2024-10-08T09:00:00 * O2A Registry URI: https://registry.o2a-data.de/items/11589 * Campaign: PS144 (ArcWatch 2; TransArc3) * Basis: Polarstern * Method/Device: Humidity And Temperature PROfiler, Radiometer Physics GmbH (HATPRO)
PS144_0_Underway-16 * Latitude Start: 69.747320 * Longitude Start: 19.142440 * Latitude End: 70.664627 * Longitude End: 12.693690 * Date/Time Start: 2024-08-09T08:00:00 * Date/Time End: 2024-10-08T12:08:45 * O2A Registry URI: https://registry.o2a-data.de/items/11590 * Campaign: PS144 (ArcWatch 2; TransArc3) * Basis: Polarstern * Method/Device: Microwave Radar and radiometer for Arctic Clouds - Passive (MiRAC-P)
Comment:
Each netCDF file contains specific humidity profiles derived from HATPRO and MiRAC-P operated onboard Polarstern during cruise PS144. Each file further contains meta data about the position (latitude, longitude, height above mean sea level), and the quality of the derived specific humidity profiles.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Walbröl, Andreas | |||
| 2 | netCDF file | netCDF | Walbröl, Andreas | derived | ||
| 3 | netCDF file (File Size) | netCDF (Size) | Bytes | Walbröl, Andreas | derived | |
| 4 | Date/time start | Date/time start | Walbröl, Andreas | |||
| 5 | LATITUDE | Latitude | Walbröl, Andreas | Geocode – start | ||
| 6 | LONGITUDE | Longitude | Walbröl, Andreas | Geocode – start | ||
| 7 | Date/time end | Date/time end | Walbröl, Andreas | |||
| 8 | LATITUDE | Latitude | Walbröl, Andreas | Geocode – end | ||
| 9 | LONGITUDE | Longitude | Walbröl, Andreas | Geocode – end |
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:
228 data points