Geolocated sea-ice or snow surface elevation point cloud segments from helicopter-borne laser scanner during the MOSAiC expedition flight 20200121_01, version 1 ...

• Main Authors: Jutila, Arttu, Hendricks, Stefan, Birnbaum, Gerit, von Albedyll, Luisa, Ricker, Robert, Helm, Veit, Hutter, Nils, Haas, Christian
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Airborne laser scanning; Arctic; Helicopter; MOSAiC20192020; MOSAIC-HELI; Sea ice; Surface Elevation; Flight number; DATE/TIME; LATITUDE; LONGITUDE; Binary Object; PS122/2; Polarstern; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Remote Sensing of the Seasonal Evolution of Climate-relevant Sea Ice Properties IceSense; Arctic Ocean; Fram Strait; laptev; Laptev Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.950917; https://doi.pangaea.de/10.1594/PANGAEA.950917

This data set provides high-resolution geolocated point clouds of sea-ice or snow surface elevation for mapping temporal and spatial evolution of sea-ice conditions such as freeboard, roughness, or the size and spatial distributions of surface features. The surface elevation data are referenced to the DTU21 mean sea surface height and are not corrected for sea-ice drift during acquisition. The data were collected using a near-infrared, line-scanning Riegl VQ-580 airborne laser scanner (hdl:10013/sensor.7ebb63c3-dc3b-4f0f-9ca5-f1c6e5462a31 & hdl:10013/sensor.7a931b33-72ca-46d0-b623-156836ac9550) mounted in a helicopter along the MOSAiC drift from the north of the Laptev Sea, across the central Arctic Ocean, and towards the Fram Strait from September 2019 to October 2020. The flights are both small scale, ~5x5 km grid patterns mainly over the central observatory, and large scale, few tens of km away from RV Polarstern, triangle patterns, or transects. The point cloud data are stored in 5-min along-track ...