High resolution atmospheric measurements during descending profile SP50325T09 with POLAR 5

• Main Authors: Michaelis, Janosch, Hartmann, Jörg, Schmitt, Amelie U, Birnbaum, Gerit, Vihma, Timo, Lüpkes, Christof
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: 5-hole-probe; Rosemount [at nose-boom]; AC; AC3; airborne measurements; Aircraft; Aircraft velocity; absolute downward components; absolute east-west components; absolute north-south components; ALTITUDE; Arctic Amplification; atmospheric boundary layer; convection; DATE/TIME; Five-hole probe [at nose-boom]; corrected by radar altimeter; fjords; Height; geometric; Humidity; relative; INS; GPS; partly corrected by laser altimeter when available; KT-19 radiation thermometer; LATITUDE; LONGITUDE; orographic effects; P5-185_STABLE_2013; POLAR 5; Polynya; Pressure; atmospheric; dynamic; Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas; Radar altimeter; Radar altitude above ground; Sea ice; SPP1158; STABLE_1303250114; STABLE_2013; Surface temperature; Antarc*; Antarctic; Arctic; Longyearbyen; Polar Research; Svalbard; The Cryosphere; Wijdefjord*; Spitsbergen
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.961310; https://doi.org/10.1594/PANGAEA.961310

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.