|No||Title Sort descending||Definition|
[GIS processing] The union tool spatially combines two data layers preserving the features from both layers at the same extents.
|2||Unmanned Aerial Vehicle (UAV)||
Unmanned Aerial Vehicle (UAV), popularly known as Drone, is an airborne system or an aircraft operated remotely by a human operator or autonomously by an on-board computer.
Unique Parcel Identifier (UPI) is a method of identifing land parcel locations based on unique code that consists of state, district, country, section and lot number.