WorksheetsQuiz GIS 3/3
Total questions: 20
Worksheet time: 3600secs
Process of assigning geospatial positioning information to raster data based
What process is this?
Georeferencing
Geographic Information System
Global Positioning System
Geographical mapping data
What does georeferencing generates?
Associate coordinate information for the map image
Generated image that does not have coordinate
Saves a digital image of the map
Scan map coordinate information to computer
This data obtained by scanning maps or collecting aerial photographs. What data is this?
Georeferencing data
Coordinates data
Image Raster Data
Raster Data
What do you need to do before use it for raster datasets in conjunction with the other spatial data?
Need to identify the coordinate raster datasets before conjunction
Need to align them to a map coordinate system
Define using raster data
Need to use map projection to georeferencing
"Used to build a polynomial transformation that will shift the raster dataset from its existing location to the spatially correct location."
Dataset
Coordinating System
Raster dataset
Control points
How many numbers of links you need to create in georeferencing?
Scanned map datasets don't normally contain links of spatial reference information
Depends on the complexity of the transformation you plan to use to transform the raster dataset to map coordinates.
Essentially associating data with a specific area on Earth
The process involves identifying a series of ground control points known x,y coordinates
Similar to georeferencing, this feature aligns an input dataset to a reference dataset, based on links between common control points. Name “this feature”
Spatial adjustment
Raster Dataset
Output Dataset
Geoprocessing
What is the major differences between georeferencing and spatial adjustment?
The method of georeferencing features having the different attributes are searched and spatial adjustment found the spatial boundary dropped.
The georeferencing of the combined coverage will have the attributes of both but not the input coverages
The features within the common area of both coverages is preserved
Georeferencing is used to re-create a missing or unknown spatial reference for raster and CAD data, spatial adjustment is used to correct the alignment of editable vector data.
What type of data that can be spatially adjusted?
Data set
Shape files
Output dataset
Geoprocessing
Spatial adjustment methods are used in?
Edit session
Raster Dataset
Qgis
Input Dataset
Which one is a method for performing spatial adjustment?
Vector data , raster data and tabular and attribute table
Transformation , Tabular Data , and Vector Data
Raster Data , Attribute Data , Transformation Data and Rubber Sheeting
Transformation, edge matching, and rubber sheeting.
…… spatial adjustment method that is typically used for connecting the endpoints of features with each other.
Irregular data
Endpoints Linking
Edge matching
Connecting Data Network
Name this method for performing spatial adjustment
Rubber Sheeting
Edge Matching
Layering Data
Transformation
The ......... is constantly monitored and updated by the ground stations.
What data is that?
Orbital Position
Satellite Information
Broadcast Signal
Satellite Number Station
There are two common formats displayed once GPS receiver located its location. What is that format?
GPS Receiver
Universal transverse Mercator
Location and speed time
Processed signal
- Defense Purpose
- Weather Information
- Engineering purpose
Map Locating
Geography Informative System
Mapping system
Global Positioning System
This information represents?
Data system
Provides location and time information
Real time online tracking
GPS satellite signals
Uses two types of signals to calculate distance
Code phase ranging and carrier phase ranging
Carrier phase ranging and Satellite code distance
Satellite signal and distance data input
Code phase ranging and Code Distance
Potential failures
SV position
Privacy concern
What method is this?
Global Positioning System
Mapping System
Geographic information system
GPS Trilateration
The receiver collects and processes signals from the GPS satellites
GPS has been developed 3 major segments. Based on this statement, which segments is this?
GPS Segments
Controls Segments
Space Segments
User Segments
