GIS Exercise 2
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School
University of Texas, Arlington *
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Course
3340
Subject
Geology
Date
Dec 6, 2023
Type
docx
Pages
4
Uploaded by Alberto325
GEOL 3340 Geology for Engineers
Name: _Alberto Canales ___
GIS Exercise 2
You can do ArcGIS exercises in several locations on campus besides the lab:
Science and Engineering Library, basement of Nedderman Hall
004-005 University Hall – Computer lab
Room 324 in the Architecture building
B29 Central Library – Digital Media Lab
Other guidelines:
You may work with ONE other person, but you still must answer questions on your own.
Answers to questions must be in order and labeled.
You may attach screenshots to the end, but these also must be in order and labeled.
If you are emailing the assignment to me, it must be in ONE document. Work through all of Chapter 5, Symbolizing features and rasters.
Include pictures of your work after the designated steps by taking a screen shot (Print Screen button on keyboard) and answer the following questions
.
1.
What type of river is the Senegal? Intermittent, and Perennial rivers
2.
What is a hillshade raster? How is it derived? Hillshade Roster shows an elevation sirface
in relief. Hill shade raster gives a realistic impression of the landform, and it can be mathematically derived from an elevation raster by setting a certain angle and attitude of a light source. 3.
What are pyramids? Pyramids are versions of raster dataset, varying from the course to fine resolution that are used to improve the drawing speed of raster layers as you zoom in
and out. You only build pyramids once for a raster dataset. 4.
After completing Exercise 5d, include a picture of the five completed maps in layout view.
Work through all of Chapter 6, Classifying features and rasters.
Include pictures of your work after the designated steps by taking a screen shot (Print Screen button on keyboard) and answer the following questions
.
5.
What are the four ways ArcGIS applies scaled symbology?
Arc gis applies scaled symbology by graduated color, graduated symbol, proportional symbol, and dot density.
6.
What are the seven classification methods ArcGIS uses? How does each create classes?
http://pro.arcgis.com/en/pro-app/help/mapping/symbols-and-styles/data-classification-
methods.htm
The seven-classification methods Arc Gis uses are: a. Manual interval creates classes by manually adding class breaks and setting ranges appropriate
for the data. b. Equal Interval creates classes based on the value range automatically determined. c. Defined interval quantile creates classes by using an interval size with the same value range. d. Natural breaks (Jenks) create classes based on the best groups with similar values together. e. Geometrical interval creates classes by geometric series. f. Standard deviation creates classes by doing mean and standard deviation, created with equal value ranges that are a proportion of the standard deviation.
g.
Quantile creates classes by an equal number of features.
7.
Which African country had the highest population in 2000
Nigeria had the highest population in 2000 with 161,075,377 people.
8.
What is normalization?
Normalization is diving one number by another to minimize difference in values
9.
What is masking?
10.
Masking is identifying an area to be included in the analysis.
11. Take a screenshot after completing step 24 of exercise 6d (page 173)
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