dacae0c5-2236-4f1a-a20c-1d7bfa9fc9d6 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-11-17T02:36:47 creation ISO 19115 2016 2007-08 V3 CEAMARC-CASO Bathymetry Plots Over Time During Events dacae0c5-2236-4f1a-a20c-1d7bfa9fc9d6 A routine was developed in R ('bathy_plots.R') to plot bathymetry data over time during individual CEAMARC events. This is so we can analyse benthic data in relation to habitat, ie. did we trawl over a slope or was the sea floor relatively flat. Note that the depth range in the plots is autoscaled to the data, so a small range in depths appears as a scatetring of points. As long as you look at the depth scale though interpretation will be ok. The R files need a file of bathymetry data in '200708V3_one_minute.csv' which is a file containing a data export from the underway PostgreSQL ship database and 'events.csv' which is a stripped down version of the events export from the ship board events database export. If you wish to run the code again you may need to change the pathnames in the R script to relevant locations. If you have opened the csv files in excel at any stage and the R script gets an error you may need to format the date/time columns as yyyy-mm-dd hh;mm:ss, save and close the file as csv without opening it again and then run the R script. However, all output files are here for every CEAMARC event. Filenames contain a reference to CEAMARC event id. Files are in eps format and can be viewed using Ghostview which is available as a free download on the internet. {"type": "Polygon", "coordinates": [[[139.01488, -67.07104], [150.06479, -67.07104], [150.06479, -42.88246], [139.01488, -42.88246], [139.01488, -67.07104]]]} 139.01488 150.06479 -67.07104 -42.88246 AMD AMD/AU Bathymetry CEOS EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS ECHO SOUNDERS Echo Sounder GEOGRAPHIC REGION > POLAR OCEAN > SOUTHERN OCEAN R/V AA > R/V Aurora Australis SHIPS GET DATA documentDigital Download the excel spreadsheets detailing the bathymetry data HTML PROJECT HOME PAGE documentDigital Public information for ASAC project 2652 HTML PROJECT HOME PAGE documentDigital Public information for ASAC project 2792 HTML VIEW RELATED INFORMATION documentDigital Citation reference for this metadata record and dataset. HTML Creative Commons by Attribution logo documentDigital PNG