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Abstract:
The data set comprises a collection of 5 digital terrains models (DTMs) showing the sea ice surface topography for ponded first year ice during the 2012 July–August ICE12/ACCESS cruise north of Svalbard onboard R/V “Lance” in the southwestern Nansen Basin (82.3◦ N, 21.5◦ E). ICE12 drift north of Svalbard in July-August 2015. ICE12 featured an eight-day ice station, 26 July to 3 August 2012, in an area of very close, 9/10 concentration, drift ice. The ice floe that “Lance” was moored to during the drift had a diameter of approximately 600 m and a modal ice thickness of 0.8 m. The surface topography for 5 segments of ICE12 floe is derived using photogrammetry from the series of images acquired by ICE camera setup during survey flights on 28.07.2012 and 31.07.12. Data are presented on a regular 2 cm mesh in UTM coordinates and covers the areas from 11000 to 14000 m2 per segment . As an output formats the ascii XYZ table is used.
The dataset provides supplementary materials (Table 3) for the following publication: Fors, A.S., Divine, D.V., Doulgeris, A.P., Renner, A.H.H., and Gerland, S.: “Signature of Arctic first-year ice melt pond fraction in X-band SAR imagery”, The Cryosphere, doi:10.5194/tc-2016-125
Quality
For more detailes on the dataset and methods used please see Divine, D.V., Pedersen, C. A., Karlsen, T. I., Granskog, M. A., Aas, H.F., Hudson, S. R., and Gerland, S., 2016: “Photogrammetric retrieval and analysis of small scale sea ice topography during summer melt”, Cold Regions Science and Technology, 129 , 77–84, 10.1016/j.coldregions.2016.06.006.