Marine Geoscience Data System
HD-YLAKE Magnetic:Anomaly
AUV magnetic anomaly gridded data from 15m above lake floor (GXF format) for the HD-YLAKE project, Yellowstone Lake
This data set consists of an interpolated grid of magnetic field anomaly over hydrothermal sites in northern Yellowstone Lake collected by an autonomous underwater vehicle (AUV) in July 2016 by Ocean Floor Geophysics Inc. (OFG) ( The data are collected approximately 15m above the lake floor and interpolated onto a grid with a horizontal spacing of 50m. The file is in the Grid eXchange File GXF ASCII grid format. Details of the grid interpolation and analysis are explained in Bouligand et al., 2020. The lake surface and AUV magnetic data sets were acquired under National Park Service research permit YELL-2016-SCI-7018. Maurice Tivey was supported under NSF IPA grant 1557455 to WHOI and WHOI internal funds. During the course of this study, Claire Bouligand was a visiting scientist at the U.S. Geological Survey in Menlo Park, California, USA and benefited from a delegation to Centre National de la Recherche Scientifique (CNRS) and received funding from CNRS-INSU program SYSTER. The data set was generated as part of the Hydrothermal Dynamics of Yellowstone Lake (HD-YLAKE) project and was supported by National Science Foundation grant EAR-1516361.
Device Info
The data have been processed/modified to a level beyond that of basic quality control (e.g. final processed sonar data, photo-mosaics).

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