Michaelis, Janosch; Hartmann, Jörg; Schmitt, Amelie U; Birnbaum, Gerit; Vihma, Timo; Lüpkes, Christof (2023): High resolution atmospheric measurements during descending profile SP50325T09 with POLAR 5 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.961310, In: Michaelis, J et al. (2023): High resolution aircraft measurements on three days over Wijdefjorden, Svalbard during the STABLE campaign in March 2013 [dataset publication series]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.961263
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Abstract:
The data set consists of high resolution airborne measurements that were obtained mainly over Svalbard and near the sea ice edge north of Svalbard on three days in March 2013 during the campaign "SpringTime Atmospheric Boundary Layer Experiment (STABLE). STABLE was led by the Alfred Wegener Institue (AWI) and by the Finnish Meteorological Institute (FMI). The measurements were performed using the POLAR 5 research aircraft, where all research flights of 5-6 hours duration started and ended at Longyearbyen airport. During STABLE, observations focused on the vertical structure of the lower troposphere as well as boundary layer modifications, e.g. during marine cold-air outbreaks and by convection over leads in sea ice. The data set presented here predominantly consists of measurements that were obtained over the Wijdefjorden, which is a North-South oriented fjord with a length of more than 100km in the northern part of Spitsbergen. The measurements were carried out to study the boundary layer structure in the fjord as well as for analyses of the role of the topography on the atmospheric conditions. In its southern part, the fjord was covered by land-fast sea ice until about 72.5km north of the fjord's head. In its northern part, there was open water.
Keyword(s):
Related to:
Hartmann, Jörg; Gehrmann, Martin; Kohnert, Katrin; Metzger, Stefan; Sachs, Torsten (2018): New calibration procedures for airborne turbulence measurements and accuracy of the methane fluxes during the AirMeth campaigns. Atmospheric Measurement Techniques, 11(7), 4567-4581, https://doi.org/10.5194/amt-11-4567-2018
Michaelis, Janosch; Lüpkes, Christof; Schmitt, Amelie U; Hartmann, Jörg (2021): Modelling and parametrization of the convective flow over leads in sea ice and comparison with airborne observations. Quarterly Journal of the Royal Meteorological Society, 147, 914-943, https://doi.org/10.1002/qj.3953
Michaelis, Janosch; Schmitt, Amelie U; Lüpkes, Christof; Hartmann, Jörg; Birnbaum, Gerit; Vihma, Timo (2022): Observations of marine cold-air outbreaks: a comprehensive data set of airborne and dropsonde measurements from the Springtime Atmospheric Boundary Layer Experiment (STABLE). Earth System Science Data, 14(4), 1621-1637, https://doi.org/10.5194/essd-14-1621-2022
Smit, Herman; Kivi, Rigel; Vömel, Holger; Paukkunen, Ari (2013): Thin Film Capacitive Sensors. In: Kämpfer, N (eds.), Monitoring Atmospheric Water Vapour, Springer New York, New York, NY, 11-38, https://doi.org/10.1007/978-1-4614-3909-7_2
Suomi, Irene; Vihma, Timo; Nygård, Tiina; Hartmann, Jörg; Lüpkes, Christof (submitted): Mesoscale atmospheric processes over an Arctic fjord as observed during a research aircraft campaign in winter. Polar Research
Tetzlaff, Amelie; Lüpkes, Christof; Birnbaum, Gerit; Hartmann, Jörg; Nygard, T; Vihma, Timo (2014): Brief Communication: Trends in sea ice extent north of Svalbard and its impact on cold air outbreaks as observed in spring 2013. The Cryosphere, 8(5), 1757-1762, https://doi.org/10.5194/tc-8-1757-2014
Tetzlaff, Amelie; Lüpkes, Christof; Hartmann, Jörg (2015): Aircraft‐based observations of atmospheric boundary‐layer modification over Arctic leads. Quarterly Journal of the Royal Meteorological Society, 141(692), 2839-2856, https://doi.org/10.1002/qj.2568
Additional metadata:
Project(s):
Funding:
Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 171803021: Representation of the convective atmospheric boundary layer during cold-air outbreaks in regional models: a joined study based on observations, Large Eddy Simulation and mesoscale modelling
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. 314651818: LU818/5-1, Modellierung und Parametrisierung von durch Rinnen generierter Turbulenz in der atmosphaerischen Grenzschicht ueber antarktischem Meereis
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: 78.426667 * Median Longitude: 15.726255 * South-bound Latitude: 78.249062 * West-bound Longitude: 15.214355 * North-bound Latitude: 78.662392 * East-bound Longitude: 16.455015
Date/Time Start: 2013-03-25T15:58:26 * Date/Time End: 2013-03-25T16:10:50
Minimum ALTITUDE: 82.197 m * Maximum ALTITUDE: 2787.285 m
Event(s):
STABLE_1303250114 * Latitude Start: 78.245950 * Longitude Start: 15.501430 * Latitude End: 78.245940 * Longitude End: 15.501470 * Date/Time Start: 2013-03-25T10:20:00 * Date/Time End: 2013-03-25T16:16:00 * Campaign: STABLE_2013 (P5-185_STABLE_2013) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
Comment:
descent before landing at Longyearbyen airport
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Lüpkes, Christof | INS, GPS | Geocode | |
| 2 | Pressure, atmospheric | PPPP | hPa | Lüpkes, Christof | 5-hole-probe, Rosemount [at nose-boom] | Static; Corrected for the influence of the aircraft |
| 3 | Pressure, atmospheric, dynamic | P dyn | hPa | Lüpkes, Christof | 5-hole-probe, Rosemount [at nose-boom] | |
| 4 | Temperature, air | TTT | °C | Lüpkes, Christof | Temperature sensor, Pt-100, [at nose-boom] | Corrected for the influence of the aircraft |
| 5 | Humidity, relative | RH | % | Lüpkes, Christof | Vaisala, HUMICAP | Corrected for adiabatic compression as the sampled air enters the sensor situated in the Rosemount housing |
| 6 | Wind velocity, west-east | U | m/s | Lüpkes, Christof | Five-hole probe [at nose-boom] | See Hartmann et al. (2018) for the detailed calculation |
| 7 | Wind velocity, south-north | V | m/s | Lüpkes, Christof | Five-hole probe [at nose-boom] | See Hartmann et al. (2018) for the detailed calculation |
| 8 | Wind velocity, vertical | W | m/s | Lüpkes, Christof | Five-hole probe [at nose-boom] | See Hartmann et al. (2018) for the detailed calculation |
| 9 | ALTITUDE | Altitude | m | Lüpkes, Christof | Five-hole probe [at nose-boom], corrected by radar altimeter | Geocode – Calculated from measured atmospheric static pressure, where the offset in the original data due to the reference pressure at departure was corrected using radar altimeter measurements during low-level flight legs between the vertical profiles |
| 10 | Radar altitude above ground | Radar altitude | m | Lüpkes, Christof | Radar altimeter | |
| 11 | LONGITUDE | Longitude | Lüpkes, Christof | INS, GPS | Geocode | |
| 12 | LATITUDE | Latitude | Lüpkes, Christof | INS, GPS | Geocode | |
| 13 | Height, geometric | h geom | m | Lüpkes, Christof | INS, GPS, partly corrected by laser altimeter when available | |
| 14 | Aircraft velocity, absolute east-west components | Aircraft vel U | m/s | Lüpkes, Christof | INS, GPS | |
| 15 | Aircraft velocity, absolute north-south components | Aircraft vel V | m/s | Lüpkes, Christof | INS, GPS | |
| 16 | Aircraft velocity, absolute downward components | Aircraft vel W | m/s | Lüpkes, Christof | INS, GPS | |
| 17 | True air speed | TAS | m/s | Lüpkes, Christof | INS, GPS | |
| 18 | Surface temperature | Surf temp | °C | Lüpkes, Christof | KT-19 radiation thermometer |
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:
1041614 data points
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