Nt1310 Unit 3 Lab Report

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Exercise 1
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1. Open up Arcmap and ERAS imaging and add roster layers from the satellite. Add band six then examine after that the person will remove and six and then add band for which is the near infrared band for arc map. In ERAS imaging a person can use multiple windows and open up the same file in different bands this is useful to identify different objects. Q1: Briefly describe the relationship between an object’s temperature and the energy it emits?
A: Objects in the ban six which is a thermal band a person can see the energy that is transmitted which is thermal energy. For example, a rock is going to absorb heat energy and store longer than grass.Furthermore, peak energy of the earth is greater than the peak energy of the sun this is also why a person might use thermal imaging because at nighttime there is no light being admitted for reflectance however the earth has thermal energy which puts off a heat signature that can be picked up by thermal sensor which a person can see differences in thermal signatures different objects. …show more content…
A person will need to make a composite band which combines all the bands into one image. Open the composite image then go to properties, after that go to the symbology tab.Add one band in stretched then examine then add the near-infrared layer.

Q2: What region of the electromagnetic spectrum is the most widely used vegetation analysis?
A: The near-infrared band is commonly used for vegetation analysis because healthy vegetation reflects more in this band then visible RGB band. Furthermore, the red edge is what helps with identifying of vegetation with the near-infrared band.

Q3: Name the two tools, in ERDAS and ArcMap, which combine multiple layers into one image file.
A: In ERDAS the Layer Stack tool is used. In ArcMap the Composite Bands tool is used. Exercise

Nt1310 Unit 3 Lab Report

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Nt1310 Unit 3 Lab Report

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Nt1310 Unit 3 Lab Report

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Nt1310 Unit 3 Lab Report

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