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13 Cards in this Set
- Front
- Back
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USPLS is short for?
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US Public Land Survey System
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what is the USPLS?
- a __ system - structure for designating and describing the location of land parcels - used for land outside the __ - an approximate __ system |
reference
13 colonies uniform grid |
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USPLS divides lands north-south lines running parallel to a principal meridian, at __ mile increments - forming a __ x __ mile townships.
Townships are then further divided into __ sections each approximately __ mile on each side |
6
6 mi x 6 mi 1 mi |
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DOQQ is short for?
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Digital Ortho Quarter Quads
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Passive Remote Sensing illumination is provided by the __. Since it's passive, it has __ energy provided by the __ instrument
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sun
no energy remote sensing |
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Active Remote Sensing illumination is provided by the __. It emits __ in order to scan objects and measures the __ from the target
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sensor system
energy radiation that is reflected or backscattered |
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Compare and Contrast Aerial Photographs and Satellite Images.
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Aerial Photographs:
- relatively inexpensive - small area - can be geometrically corrected Satellite Images: - inexpensive for large areas - large area coverage - geometrically accurate |
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(definition) Remote Sensing measures __ from __ instruments
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electromagnetic energy reflected or emitted from objects - airborne or satellite-based instruments
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List the three main types of radiation processes in remote sensing.
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1) reflection
2) emission 3) emission-reflection |
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topographic maps, raster digital elevation models, and orthophotographs are all examples of __
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vertical photography
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(definition) Orthophotography is...
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digital imagery in which distortion from the camera angle and topography have been removed, thus equalizing the distances represented on the images
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DOQQ important metrics.
- __ meter ground resolution - cover an area measuring __ minutes by __ minutes (latitude and longitude) |
1
3.75 |
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What does it mean for a DOQQ image to have a resolution of 1-meter?
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Image with one meter resolution means that each pixel in the image represents one square meter on the ground
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