Gridded bathymetry (shapefile format for ODV) of the Baker-Martinez fjord complex (Chile, 48°S) v2.

These shapefiles present the coastline, 20m depth and 50m depth contour lines for this second version of a bathymetric map of the Baker-Martinez fjord complex (Chile, 48°S). They are intended to be used in Ocean Data View (ODV). The data set is constructed from multiple data sets: multibeam echosounder data of Baker channel (Harada et al., 2008) and of Steffen fjord and Baker river delta (Vandekerkhove et al.), single beam echosounder data of Martinez channel (R/V Sur-Austral 2015/2016) and Jorge Montt fjord (Rivera et al., 2012, Moffat, 2014 and additional data from C. Moffat) and individual bathymetry points (digitized using Global Mapper software) from two SHOA nautical charts (SHOA, 2001, 2008). The heterogeneous data with distinct spatial resolution was gridded using the kriging method (3.6 arc-second resolution) in Surfer from Golden Software. Compared to the first version (Piret et al., 2017), this new version features improved bathymetry for the Martinez Channel. We intend to update this map when new data sets become available. The data files are in ESRI shapefile format (to use them in ODV, see section 3.1 of the manual v 5.0: https://odv.awi.de/fileadmin/user_upload/odv/misc/HowTo.pdf). Geographic (unprojected lat/lon) Coordinate System – World Geodetic System 1984 (WGS84). The previous version of this bathymetry is available at https://doi.org/10.6084/m9.figshare.5285521.v3 (figshare).