Lab 10

Part B

Part C

Lab 9B

1. How many counties does the State of Iowa contain? (1 pt)
          99 counties.
2. Which county in Georgia contains the largest number of people, as of the year 2001? (1 pt)
          Fulton County.
3. How many cities, with populations between 10,000 and 49,000, are located within the State of Washington? (1 pt)
          31 cities.
4. How many miles long are all of the interstates in Los Angeles County? (1 pt)
          4210.3 miles.
5.
6. How many acres of urban area lie within Los Angeles County, based upon your results from question #5? ( 1 pt)
          1,441,652.8 acres
7. How many zip codes have their centroid in Los Angeles County? (1 pt)
          522
8.
9. Which Native American Indian Reservations lie within 75 miles of the City of Thurso in Canada? (1 pt)
          Lac-Simon Reservation

Lab 9A

Part I.
1. Spatial scope - the degree of input data utilized to determining the values at output locations. The three types: local operations, neighborhood operations, and global operations.
2. Set Algebra (ex: =, >) & Boolean Algebra (AND, OR)
3. Adjacency, Containment, Dissolve, Overlay, Buffer, and Spatial Join.

Part II.
4. Yes.
5. PtDumeQuad, Vegetation, and Wetlands
6. 10,896 features.
7. 9 records.
8. 8 records
9. 404 selected.
10. 123 selected.

Lab 8

Boldstad Chapter 8 questions and answers
1. A database management system organizes and manipulates data. A DBMS uses specific software tools to managing tabular data - especially to retrieve and index data.

2. One-to-one  - only one record connects to another. 

    Many-to-one - multiple records connect to one other records in a different table.

3. They are popular because they make the data more independent and have a central control that allows for multiple users to access it.

Ormsby Chapter 8 & 9
4a. String data
4b. String data

5a. LU_Description, LU_General, LU_Type, Acres, Square Miles
5e. 92,236.77 acres

Lab 7

I. Chapter 7
1. The information comes from layer attributes.
2. Using the label tool, clicking on the cities you do want to label should label them.
3. Yes. Right Click > Nudge
4. Selector.
5. Map annotation and Geodatabase annotation.

II. Chapter 18
1. a. True
2. Yes, you can.
3. When you launch ArcMap, they give you the option to use a template.
4. Double click on the symbol under the attribute data and a new window should pop up, giving you the option to change the symbol, its color, etc.
5. Select the Symbol or use the drawing toolbar  > fill color.

III. Chapter 19
1. Determine the size and orientation of the map.
2. Layout view can contain multiple data frames, therefore it won't be the same as data view unless adjusted.
3. What type of measurement unit to use, the amount of dividers, and the amount of subdividers.
4. It shows you how the map will appear if printed.
5. Data view would move with the graphic, but in layout view, the overall map is independent of the movement of the graphic.

Part 2:
1. Choropleth maps classify numerical data into shaded categories.
2. Layer files allow you to define symbol assignments and different classifications
3. Layer files don't contain datasets; however layer packages contains the map layer and a copy of its data
4. Long Beach: 461,522
5. Los Angeles: 3,694,820
6. Document, URL, and Macro.

Lab 6

1. In your own words, describe how symbology can be influenced by scale.

Symbology can be manipulated so that certain names show up/disappear based on the current scale of the map.

2. What are two ways (one direct and one indirect) to access a layers symbol colors so that they can be changed?

You may either click on the symbol icon under the feature class to bring up the color options or right-click the icon itself and select a color.

3. How would you access the graduated symbols classification icon?

Right click feature class > Properties > Symbology tab > Quantities > Graduated Symbols
 
4. What are 5 other symbology styles (in addition to ‘Conservation’) that are available to customize your features?

Proportional Symbols, Dot Density, Quantity by Category, Stacked, Unique Values.

5. How could you permanently save layer symbology for use later on?

Save the layer as a layer file.

6. How can  pyramids help raster data display faster?

Pyramids contain many versions of the raster map, from coarse to fine, that help the map draw at a faster rate when you zoom in and out.

7. How could you quickly and temporarily change a layer name to aid display in the Table of Contents?
Double click on the layer name in the feature class and rename it.

8. What is normalization?

Normalization is dividing one attribute by another to find the ratio between them. One example, if trying to see if - between two countries - which one has a denser population.

Lab 5

I. Answer the following questions based on Bolstad Chapter 7 and lecture. 1. What are some advantages and disadvantages of using digital spatial data?

Digital Spatial Data is very efficient, readily-available, and by far the quickest source for data. A disdvantage to using it would be its less accurate sources (in some cases). Because it is so easily obtained, it can also be easily made by unreliable sources.

2. What are the most important questions you must ask before using already-developed spatial data?

You have to make sure that the source of the data is reliable, make sure that the projection is the type you wish to use, and make sure the data itself is the exact data you are seeking.

3. How do DOQs differ from regular photographs?

DOQs have removed displacement caused by terrain relief and camera tilts – thus, a more accurate “aerial photograph”

4. Choose three existing data sets and describe who produces them, what the source materials are and what they contain.

The NED (National Elevation Dataset) is produced by the USGS and uses aerial surveying.

Alabama DOQQ County Mosaics – a DOQQ dataset produced by the USGS and also uses aerial surveying.

Texas CLU bundle is a dataset also prodocued by the USGS that contains roads and calculated acreage of land in Texas.

5. What is the difference between DEMs and NEDs?

NEDs are produced by the USGS and is general elevation data that is the best raster data available of the US. NEDs are made up of DEMs, which are raster maps of specific relief areas.

 II. Step through the following instructions and answer any associated questions.

Basemap and Hydrology

b. What are the names of the feature classes in the hydrology dataset? c. For each one of the feature classes you just listed, describe whether it is a polygon, line or point layer.

NHDFlowline - Line
NHDPoint - Point
NHDWaterbody - Polygon
Watersheds - Polygon

3. Using ArcCatalog, answer the following questions.
a. Is topoq24.shp a raster or vector layer?

Vector

b. What is the GIS data format of topoq24.shp?

It’s a shapefile



It is vector data.
YES

e. Is there metadata associated with NHDFlowline?



g. Who created the NHDFlowline layer?
Yes
'US Geological Survey in cooperation with US EPA, USDA Forest Service, and other Federal, State and local partners'
a. Is there still metadata associated with the layer? River, Lake / Pond, Canal / Ditch, Reservoir, Springf. What are 3 keywords used to describe the NHDFlowline layer? d. What is the GIS data format of the NHDFlowline layer? c. Is there metadata associated with topoq24.shp?
noa. What are the names of the feature datasets in the geodatabase?