Since you are an ArcGIS user already familiar with netCDF data files, I would suggest using the native file format for the OSCAR dataset, which also minimizes any errors in geolocation and/or data precision. That dataset can be accessed here: https://podaac.jpl.nasa.gov/dataset/OSC ... _third-deg
Direct data access is available on Drive: https://podaac-tools.jpl.nasa.gov/drive ... _third_deg
The following user guide provides additional guidance: https://podaac-tools.jpl.nasa.gov/drive ... dguide.pdf
Basically, you'll need to work with the native U and V vector components to Resolve the current velocity vector. The U and V components follow the oceanographic convention, so a positive U indicates surface water flowing to the East, and a positive V indicates surface water flowing to the North.
I am not an ArcGIS user, but the following ESRI article seems to provide the guidance you would need to rectify the vector arrows on to a map: https://www.esri.com/arcgis-blog/produc ... v-vectors/
I'll consult internally with our GIS experts and see if there's any more guidance we might be able to provide.