Competent decisions can only be rendered by reliable data and though GIS is an amazing data management tool, using it with GPS helps in validating the data analysis and results.
Remote sensing refers to detection and classification of objects on or in earth without physical contact, generally attained through aerial sensors.
GIS tools on the other hand require interaction with the map canvas.
Commands do not require interaction with the map, they just rely on surface.
Skills in spatial data handling, algorithms, data conversion, model building and database programming.
Geo-referencing is the process of associating plain digital images taken from a satellite or a plane with map coordinates so that they can be overlaid on street maps.
Geo-coding is when you associate a place name or an address with map coordinates.
The two data structures that can hold spatial data include raster and vector.
A GIS technician works closely with end users to identify GIS data requirements and handle technical issues. It is also the job of a GIS technician to manage data maintenance and manipulation and handle extraction activities along with ensuring preparation, planning and updating a variety of maps and drawings to be part of a GIS database.
► 1. True
► 2. False