Lab 5

Chapter 5

Major Cities

Countries

Rivers
Wildlife
Topography

Chapter 6

Population
Population Density
Diamonds
Power

Lab 4

Part One

Beginning in ArcCatalog, I changed the projection of all three datasets to North America Albers Equal Area Conic. I then dragged the data into ArcMap. I did not have to do any further steps to align them once they were in ArcMap. Although the final projection was not an exact replica to the original, they were displayed in a similar fashion.

Part Two

1. The vector datasets shown are caves (points), marble (polygon), and streams (line).

2. The three datasets are saved to shapefile format.

3. The six file extensions are- .dbf, .prj, .shp, .sbn, .shx, .sbx.

4. Datums are given in the .prj files.

5. File types:
.shp- A shapefile stores nontopological geography and attribute information for

spatial features in a data set. Consists of a main file, an index file, and a dBASE
file.
.shx- Shape index format. Positional index of feature geometry to allow seeking
forward and backward easily.
.sbn- Spatial index of features.
.prj- Projection format. Specifies geographic coordinate systems of geometric data
in .shp file.
.dbf- Suffix for dBASE table. Under shapefile. Stores attributes for each shape.

6. The .dbf file extension contains attribute information.

7. When opened, the geodatabase shows a list of feature and raster data. The feature classes
present are:
Points (Cities, Caves, Chihuahua, Crystal, Franklin, Mines, Monarch, Sinks, Swallets, Timber_Gap, White_ Chief)
Lines (Faults, Folds, Lineaments, MIKI_streams, Streams, Highways, Roads, Trails)
Polygons (KingsCanyonTractsNP, KingsNP, SequoiaKingsNP, SequoiaNP, SequoiaTractsNP, Wilderness, Marble, Catchments, Lakes, Vegeation)

8. Microsoft Access is the program prompted to open the geodatabase.

9. Using ArcCatalog, when the "+" button to the left of the raster layer is clicked, three sets of raster data is displayed. Band_1, Band_2, and Band_3.

10. In Windows Explorer, three files are seen with the extensions are AUX, SID, and SDW.

11. AUX- Auxiliary file- accompanies the raster in the same location and stores any auxiliary information that cannot be stored in the raster file itself.
SID- (MrSID)- Multiresolution seamless image database. This is a compressor viewer and file format for large raster images allowing maximum image quality.
SDW- These are text document files created in Star Office Writer.

Lab 3

1. The projections used in exercise 13a are GCS_North_American_1983 and USA Contiguous Albers Area Equal Conic.

2. The most common datum in the tutorial is Albers Equal Area Conic.

3. Alaska is the largest U.S. state in terms of area.

4.

5. The datum in the fast cities layer was in North American Lambert conformal conic. However, the datum in the states layer was in Albers equal area conic. When the fast cities layer was added to the states layer, the difference in projections had the cities in an incorrect location. The cities were projected in a more southern location. Some were in another state altogether, such as Colombus, and others, like Myrtle Beach, were even projected off the coast in the ocean.

Lab 2

1. The appropriate order for each data layer is cities, flight path, countries, graticule.
2. The US cities along Earhart's path are Oakland, Tuscon, New Orleans, and Miami.
3. Five other countries Earhart flies over are Brazil, Suriname, Venezuela, and Puerto Rico.
4. The end of Earhart's "planned" flight path was Howland Island.
5. The distance between Earhart's planned finish and probable finish is 768,552,744 km.
6. She should have completed her journey on the island of Hawaii.
7. Earhart visited 28 cities during her journey.
8. The shortest leg of her journey was 180.017 km in Senegal, from St. Louis to Dakar.
9. The longest leg of her flight was 3184.838 km from Natal, Brazil, to St. Louis, Senegal.

Chapter 4








1. The feature classes are cities, countries, disapp_area, and world30.
2. The population of Australia is 17,827,520.
3. The dataset used to determine the depth of the ocean is seafloor.tif.
4. The file type in #2 is mdb.
5. A data frame contains different sets of data that are either related to a common subject or different views of the same data.
6. The area of disappearance is the focus of the second data frame.