This data set was acquired with a Echosounder, Navigation System and Gravimeter during R/V Nathaniel B. Palmer expedition NBP1801 conducted in 2017 (Chief Scientist: Dr. Grace Saba, Investigators: Dr. Grace Saba, Dr. Robert Dunbar, Dr. Giacomo DiTullio). These data files are of MGD77 format and include Bathymetry, Gravity Field, Gravity Free Air Anomaly and Navigation data that have not been processed. Data were acquired as part of the project(s): Estimation of Antarctic Ice Melt using Stable Isotopic Analyses of Seawater; Collaborative Research: Cobalamin and Iron Co-Limitation Of Phytoplankton Species in Terra Nova Bay; Using Bio-acoustics on an Autonomous Surveying Platform for the Examination of Phytoplankton-zooplankton and Fish Interactions in the Western Ross Sea. Funding was provided by NSF award(s): OPP16-44073, OPP16-44118, OPP17-43035.