When you merged the caves together at the beginning of the exercise, there were hundreds of line segments. What tool did you use to create one line segment for each cave?
Dissolve
What does the Identity tool do?
Computes a geometric intersection of the input features AND identity features.
Making attributes invisible and deleting fields from the attribute table are the same thing.
False
Briefly explain how SLOPE is derived in ArcGIS
Slope is a measure of steepness. Slope is calculated as the maximum rate of change in values between each cell and its neighbors. Slope may be expressed either as degrees or percentages. To calculate slope in ArcMap, use the slope (spatial analyst) geopro
Briefly explain how ASPECT is derived in ArcGIS
Aspect is a measure of down-slope direction. Aspect is calculated by comparing the elevation of a raster cell to its neighbors.
Briefly explain how VIEWSHEDS are derived in ArcGIS
The viewshed identifies the cells in an input raster that can be seen from one or more observation points. Each cell in the output raster receives a value that indicates how many observer points can see the location.
When combined, which surface types produced a shaded relief effect?
Elevation, hillshade
Vector data is advantageous because
Graphic output is usually more aesthetically pleasing
Accurate geographic location of data is maintained
Allows for efficient coding of topology (for example proximity and network analysis)
Raster data is advantageous because
Data analysis is usually easy to program and quick to perform
The inherent nature of raster maps (e.g. one attribute) is ideally suited for mathematical modeling and quantitative analysis
Useful for storing data that varies continuously, as in an aerial p