PANGAEA_961728 High resolution atmospheric measurements during descending profile SP50317t26 with POLAR 5 Michaelis, Janosch; Hartmann, Jörg; Schmitt, Amelie U; Birnbaum, Gerit; Vihma, Timo; Lüpkes, Christof High resolution atmospheric measurements during descending profile SP50317t26 with POLAR 5 2023-08-24 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.961728 Investigator Christof Lüpkes Christof.Luepkes@awi.de Earth Science DATE/TIME Pressure, atmospheric Pressure, atmospheric, dynamic Temperature, air Humidity, relative Wind velocity, west-east Wind velocity, south-north Wind velocity, vertical ALTITUDE Radar altitude above ground LONGITUDE LATITUDE Height, geometric Aircraft velocity, absolute east-west components Aircraft velocity, absolute north-south components Aircraft velocity, absolute downward components True air speed Surface temperature geoscientificInformation airborne measurements Aircraft atmospheric boundary layer convection fjords orographic effects Polynya Sea ice STABLE_1303170109 STABLE_2013 topography turbulence INS, GPS 5-hole-probe, Rosemount [at nose-boom] Temperature sensor, Pt-100, [at nose-boom] Vaisala, HUMICAP Five-hole probe [at nose-boom] Five-hole probe [at nose-boom], corrected by radar altimeter Radar altimeter INS, GPS, partly corrected by laser altimeter when available KT-19 radiation thermometer POLAR 5 2013-03-17 2013-03-17 Complete 78.2478333 78.2537689 15.3259172 15.4355717 38.066 m (ALTITUDE) 240.723 m (ALTITUDE) AC3 Arctic Amplification SPP1158 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 93814 data points text/tab-separated-values 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 (2025): Mesoscale atmospheric processes over an Arctic fjord as observed during a research aircraft campaign in winter. Polar Research, 44, https://doi.org/10.33265/polar.v44.9263 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 Dataset description of the STABLE campaign in Wijdefjorden (URI: https://download.pangaea.de/reference/119483/attachments/data-set_description_STABLE_campaign_Wijdefjorden.pdf)

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.961728"! ** descent before landing at Longyearbyen airport, part 2

http://en.wikipedia.org/wiki/Altitude ALTITUDE http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.1002/qj.2568 Aircraft-based observations of atmospheric boundary-layer modification over Arctic leads https://doi.org/10.1002/qj.3953 Modelling and parametrization of the convective flow over leads in sea ice and comparison with airborne observations https://doi.org/10.1007/978-1-4614-3909-7_2 Thin Film Capacitive Sensors https://doi.org/10.17815/jlsrf-2-153 POLAR 5 https://doi.org/10.33265/polar.v44.9263 Mesoscale atmospheric processes over an Arctic fjord as observed during a research aircraft campaign in winter https://doi.org/10.5194/amt-11-4567-2018 New calibration procedures for airborne turbulence measurements and accuracy of the methane fluxes during the AirMeth campaigns https://doi.org/10.5194/essd-14-1621-2022 Observations of marine cold-air outbreaks: a comprehensive data set of airborne and dropsonde measurements from the Springtime Atmospheric Boundary Layer Experiment (STABLE) https://doi.org/10.5194/tc-8-1757-2014 Brief Communication: Trends in sea ice extent north of Svalbard and its impact on cold air outbreaks as observed in spring 2013 https://gepris.dfg.de/gepris/projekt/268020496 AC3 https://gepris.dfg.de/gepris/projekt/5472008 SPP1158 https://www.awi.de/en/about-us/organisation/staff/single-view/christof-luepkes.html PANGAEA_961263 DIF 9.4 2023-08-24 2026-06-17