SMS:Historical Surveys (Data Sources)
From XMS Wiki - http://wikis.aquaveo.com/xms/
There are several sources of historic surveys. These include previous studies done by a modeler or company and compiled databases such as GEO-DAS or ETOPO. These data sources can be imported into SMS and used either as the basis of a finite computation domain (mesh or grid), or as a scattered data set or DEM. Care must be taken into account the age and quality of the data and make sure all data sources are converted to a single coordinate system.
