Computer storage and retrieval of position-dependent data : technical report

Abstract

A data storage and retrieval scheme has been designed and implemented which provides cost effective and easy access to location-dependent, 'geophysical' data. The system is operational on a Digital Equipment Corporation VAX-11/780 computer. Values of measured and computed geophysical parameters, such as geomagnetic field, water depth and gravity field, are stored in the library system. In addition, information about the data, such as port stops, project name and funding agency are also saved. These data are available to a time sharing computer user, validated to use the software package, through a query language designed to interact with this data library. The data can be searched and retrieved both sequentially and geographically.