GIS Analysis

Commands do not require interaction with the map, they just rely on surface.

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.

► 1. 25

► 2. 120

► 3. 10

► 4. 3125

120

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.

► 1. Slope is the gradient directly down the fall line, while aspect is the direction of the fall line relative to north.

► 2. Slope is the direction of the fall line, while aspect is the gradient of the fall line.

► 3. Slope is the distance down the fall line from the top of the slope to its bottom, while aspect is the percentage gradient of this line averaged over its full distance.

► 4. Slope is the gradient of the fall line relative to vertical, while aspect is the direction of the fall line relative to the line of greatest slope.

Slope is the gradient directly down the fall line, while aspect is the direction of the fall line relative to north.

► 1. The distance between two points in a raster data layer calculated as the number of cells crossed by a straight line between them.

► 2. The distance between two points in a vector data layer calculated as the length of the line between them.

► 3. The distance between two points in a raster data layer calculated as the sum of the cell sides intersected by a straight line between them.

The distance between two points in a raster data layer calculated as the sum of the cell sides intersected by a straight line between them.

► 1. Union overlay and line-in-polygon overlay

► 2. Buffer analysis and erase overlay

► 3. Buffer and point-in-polygon overlay

► 4. Intersect overlay and buffer analysis

► 5. Proximity analysis and reclassification

Proximity analysis and reclassification

Buffer and point-in-polygon overlay

► 1. Thiessen polygons

► 2. TIN

► 3. Spatial moving average

Thiessen polygons

► 1. True

► 2. False

True

► 1. A method of site location based on overlaying multiple siting criteria maps.

► 2. A method of allocating resources within an area of interest using buffer analyses

► 3. A method of matching supply with demand across a network by locating a limited set of resources using network analysis

► 4. A method within network analysis used to determine delivery routes

A method of matching supply with demand across a network by locating a limited set of resources using network analysis

► 1. The process of combining one or more data ranges into a new data range to create a new data layer.

► 2. The process of combing two or more data layers

► 3. The process of simplifying data in a data layer

► 4. An analytical technique based on point data.

The process of combining one or more data ranges into a new data range to create a new data layer.