Lesson 2.3 Field-based Data Collection Techniques

The direct data acquisition methodology usually associated with collecting data in the field

An instrument that accesses positional data from satellites and logs the information for later retrieval

A surveying instrument that combines a theodolite or transit for measuring horizontal and vertical angles with a device for measuring slope distance

The instrument used to measure horizontal and vertical angles and slope distance to an observed point

The system that provides precise coordinate information by accessing positional data from satellites

The minimum number of satellites that should have a line of sight to a GPS user to provide reasonably accurate location information

The type of GPS data that represents individual locations

The type of GPS data that can be created by connecting collected locations together

Information such as land-use type, telephone pole number, and river name that can be entered together with GPS locations

The process of directly acquiring data in the field using GPS or other surveying equipment

The instrument that allows field crews to quickly and accurately derive the topography of a landscape by measuring angles and slope distances

The surveying instrument that measures horizontal and vertical angles

The measurement taken by a total station from the instrument to an observed point along the slope

The technology increasingly incorporated into smartphones that enables portable, real-time data capture

The method of data collection in which users freely contribute data to build spatial databases

A technology that facilitates portable, real-time spatial data capture and sharing through smartphones

The type of data acquisition in which users contribute information to spatial databases

An example of an application that uses crowdsourced data acquisition

An example of a platform that uses crowdsourced spatial data

An example of a platform that uses crowdsourced spatial data

An example of a GIS platform that uses crowdsourced spatial data

The device commonly used for portable, real-time field data capture because it has GPS capabilities

The process of transferring collected GPS location and attribute data into a GIS for visualization

The type of data that can be collected as individual points or connected together to form lines or polygons using GPS

The type of information that can be entered simultaneously with a GPS location during field collection