Exam (elaborations)
NR 319 Final Exam Questions With Complete Solutions
- Course
- NR 319
- Institution
- California Southern University
NR 319 Final Exam Questions With Complete Solutions
[Show more]
Content preview
NR 319 Final Exam Questions With Complete Solutions"Combine" : a Local Function Correct Answer ArcGIS
function that assigns a value to each unique combination of
input grid values
Can do as equation in the raster calculator
Uses multiple datasets
Major drawback:
Value is arbitrary and does not communicate meaning.
Active Correct Answer Sensor emits and receives own energy
reflected from target e.g. Lidar/Radar
Advantages and Disadvantages of Unsupervised Classification
Correct Answer + Advantages
•No prior knowledge (a priori) of the area of interest is required.
BUT... need knowledge of the area to interpret the resulting
classes!
•Opportunity for input error is minimized
•Unique classes recognized as distinct clusters of unique spectral
classes
- Disadvantages
•Classes statistically based...may not match field data well
•Spectral classes are not necessarily information classes
•You still have to interpret the classes and decide whether to
lump or split classes
, AVHRR Correct Answer Sea Surface Temperature
Binary Model Correct Answer 1) Define the objective and the
decision criteria
2) Identify the necessary data (raster format)
3) Reclassify each raster layer into binary values
1 = satisfies criteria
0 = does not satisfy criteria
4) Multiply reclassified binary layers together
Change Detection Correct Answer -LIDAR
Classification Correct Answer Unsupervised
Supervised
Combination Matrix Correct Answer A method to combine
numeric attributes so that their values are in a defined numeric
place within a larger number.
The resulting map contains both:
- vegetation codes (tens place)
- slope codes (ones place)
Convolution Correct Answer you Know This in GIS as
Neighborhood Analysis
Convolution involves the passing of a moving
window(Neighborhood) over an image
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Classroom. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71498 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now