Accumulation stake readings in western Dronning Maud Land (Antarctica) along the Neumayer-Kottas-Kohnen traverse 1997 to 1998

• Main Authors: Oerter, Hans, Mengert, Melissa, Valero Delgado, Fernando, Eisen, Olaf
• Format: Dataset
• Language: English
• Published: PANGAEA 2024
• Subjects: Accumulation; Antarctica; DATE/TIME; EPICA; European Project for Ice Coring in Antarctica; Height; stake; Identification; Kohnen; Kottas; LATITUDE; LONGITUDE; Neumayer; Neumayer-Kottas-Kohnen_bamboostakes; Snow height measurement; stakes; Antarc*; Dronning Maud Land; Ice Shelf; Journal of Glaciology
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.965339; https://doi.org/10.1594/PANGAEA.965339

This data collection contains readings of accumulation stake along the approximately 800 km long traverse route Neumayer-Kottas-Kohnen, Dronning Maud Land, Antarctica. By comparing the readings of an individual stake in two different seasons the amount of surface accumulation (i.e. snow deposition) or erosion (e.g. from sublimation of wind scour) can be determined. Stake readings were conducted approximately every year starting from season 1995/1996 to 2005/2006 as part of the European Project for Ice Coring In Antarctica (EPICA). The readings were carried out by a dedicated two to three person team accompanying the traverse from Neumayer station to Kohnen station. The readings were performed by a simple measurement of the visible length of the stake above the snow surface. For tilted stakes, the vertical height above the surface as well as the length of the stake was measured. New stakes were deployed when less than about 1.5 m of the previous stake was visible or a stake was lost (e.g. from breaking off or falling over and finally get burried in snow). Consequently, at some locations more than one stake is visible for several years (e.g. when the average snow accumulation was rather low). In those cases all visible stakes were recorded at the same location of such a stake cluster and added to the table as Height_1, Height 2, Height 3). Positions were measured with a simple GPS with coarse acquisition accuracy (order of several meters to tens of meters), which is sufficiently accurate to separate different stake locations (usually 500 m apart and horizontal displacement smaller than about 150 m/a, with largest displacements on the Ekström ice shelf). In very few cases, empty lines originate from missing stakes and the required position. In very few cases, a second line with the same coordinate corresponds to the same location with a fourth stake deployed as a new stake. From Neumayer station to Kottas camp stakes were deployed at approximately a 500 m interval. As the spatial variation of accumulation on the ...