PostgreSQL, often simply Postgres, is an object-relational database management system (ORDBMS) available for many platforms including Linux, FreeBSD, Solaris, Microsoft Windows and Mac OS X. wikipedia.org

JavaScript is a prototype-based scripting language that is dynamic, weakly typed and has first-class functions. It is a multi-paradigm language, supporting object-oriented, imperative, and functional programming styles. wikipedia.org

Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object and thus in contrast to in situ observation. wikipedia.org

A geographic information system is a system designed to capture, store, manipulate, analyze, manage, and present all types of geographically referenced data. wikipedia.org

Vue.js is a library for building interactive web interfaces. The goal of Vue.js is to provide the benefits of reactive data binding and composable view components with an API that is as simple as possible. wikipedia.org

QGIS is a cross-platform free and open-source desktop geographic information systems (GIS) application that provides data viewing, editing, and analysis capabilities.

PostGIS is an open source software program that adds support for geographic objects to the PostgreSQL object-relational database.

Digital mapping (also called digital cartography) is the process by which a collection of data is compiled and formatted into a virtual image. wikipedia.org