GE 220 Quiz - Unit06: Vegetation Indices
Authored by Michael Mutale
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8 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
How is NDVI calculated?
How is NDVI calculated?
Tags
NGSS.MS-LS1-6
2.
MULTIPLE CHOICE QUESTION
1 min • 6 pts
The following NDVI values are obtained for the following sites:
Site 1 = -0.08,
Site 2 = 0.85 and
Site 3 = 0.06.
Assess, using the NDVI values, what type of land class each of these sites belong to.
Site 1: Vegetated areas, Site 2: Clouds, water, and snow, Site 3: Rock and bare soil areas
Site 1: Rock and bare soil areas, Site 2: Clouds, water, and snow, Site 3: Vegetated areas
Site 1: Clouds, water, and snow, Site 2: Vegetated areas, Site 3: Rock and bare soil areas
Tags
NGSS.MS-LS1-6
3.
OPEN ENDED QUESTION
1 min • 6 pts
Based on answer to question 2 above, qualify why the three sites belong to those land classes.
Where the sites are Site 1 = -0.08, Site 2 = 0.85 and Site 3 = 0.06
And the classes are Vegetated areas, Rock and bare soil areas and Clouds, water and snow areas.
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Tags
NGSS.MS-LS2-4
4.
OPEN ENDED QUESTION
3 mins • 3 pts
Given the following digital numbers from two different bands, calculate the Simple Ratio values for each pair.
Band A DNs: 62, 49, 19, 27 and
Band B DNs: 71, 63, 24, 31
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5.
OPEN ENDED QUESTION
2 mins • 2 pts
Based on answer to question 4 above, what can you conclude about the features represented by the Simple Ratio values?
Band A DNs: 62, 49, 19, 27 and
Band B DNs: 71, 63, 24, 31
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6.
OPEN ENDED QUESTION
1 min • 4 pts
What are the typical NDVI values for the following ground features: (i) bare soils, (ii) dessert vegetation, (iii) tropical forest and (iv) water.
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Tags
NGSS.MS-LS2-3
NGSS.MS-LS2-4
7.
OPEN ENDED QUESTION
1 min • 5 pts
List 5 application areas of NDVI.
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Tags
NGSS.MS-LS1-6
NGSS.MS-LS2-3
NGSS.MS-LS2-1
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