1. Suppose a raster dataset has a spatial resolution of 20 meters. Which of the
ID: 109553 • Letter: 1
Question
1. Suppose a raster dataset has a spatial resolution of 20 meters. Which of the following statement is NOT true?
Question options:
A spatial object of 10 by 10 meters can be identified in the raster dataset
A parallel concept can be found with digital camera or computer screen. The higher the resolution, the more megapixels a frame can hold.
The resolution is higher than another raster dataset whose cell size is 30 by 30 meters
A spatial object of 40 by 40 meters can be identified in the raster dataset
Higher resolution means that more details can be recorded
2. "Region Group" in ArcGIS is used to
Question options:
identify clusters of spatially continuous cells of the same color
combine two regions together
reclassify cell values into different groups
identify clusters of spatially continuous cells sharing the same attribute value
3. (both answers I currently have on here are wrong)
A spatial object of 10 by 10 meters can be identified in the raster dataset
A parallel concept can be found with digital camera or computer screen. The higher the resolution, the more megapixels a frame can hold.
The resolution is higher than another raster dataset whose cell size is 30 by 30 meters
A spatial object of 40 by 40 meters can be identified in the raster dataset
Higher resolution means that more details can be recorded
2. "Region Group" in ArcGIS is used to
Question options:
identify clusters of spatially continuous cells of the same color
combine two regions together
reclassify cell values into different groups
identify clusters of spatially continuous cells sharing the same attribute value
3. (both answers I currently have on here are wrong)
18171611819120122 20 151411516151616116 13 121412139 1211:3 98787778 97576 567 97624 57 751455 The figure shows part of a DEM. At the location (cell) labelled with a red box, how many slopes can be calculated? S, E, w, NW, NE, SW, SE) ? NE- - 4-, which direction is the aspect (N,Explanation / Answer
1) the correct option is option 5. Because the higher the resolution of a raster ; the smaller the cell size and thus more details.
2) The correct option is 2 i.e combine two region together. As it collects data for more regions and then compares the regions based on some specific data.
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