Lab 9b

1.  99
2.  Fulton
3. 
4.
5.
6.
7.
8.
9.

Lab 9a part 1

1. Spatial scope is the extent or area of the input data that are used in determining the values at output locations.  The three types are local, neighborhood and global operation.

2.  The 2 types of algebra used are set algebra and Boolean algebra.  Set algebra uses <>, <, > or =.  ex:  Pop. density<100 per sq mile.  Boolean algebra uses and, or, not, etc.  ex:  Los Angeles and Sacramento not San Francisco.

3.  Different types of spatial selection ops. are dissolve, spatial join, intersect overlay, union overlay, clip overlay, and buffer.

Part 2

4. yes

5.  ptdume-quad, wetlands, vegitation and wetlands project.

6.  10896

7.  8

8.  9

9.  404

10. 123

This may not look right, I was having trouble with the last select by location part.  It kept coming up with error signs.

Lab 8 part 1

1.  The Database Management System is a specialized computer program for organizing and manipulating data. It typically supports complex structures, to provide, security stability, and multiple.  Users often termed the database server

2.  One to one relationships occur when one entity is related to one other entity. Many to one relationships occur when one entity is related to many occurrences in another entity.  

3.  Relational databases are popular because it is a way of condensing down and joining togeather information that is in more than one spot.  It can also prevent redundancy, increase data quality and independence, create centralized control and allow multiple users.

Part 2

4.a.  stream or text

b.  stream or text

5.a.  name of  joined fields are land use discription, land use general, land use type, acres, shape long, shape area.

e.  92,236 acres

part 2

Lab 7

Ch. 7

1.  The information used in dynamic labels comes from the attribute table, like cities or road names.  You use the layer tab in the properties dialogue box to add or adjust them.

2.  To only show certain things like cities on a map you go to the layers tab in layer properties and use the SQL query button to create a query statement with just the info you want.

3.  Yes you can manually adjust labels by clicking on them and drag to desired position.

4.  To adjust graphics you use the select elements tool

5.  Two annotation types are database and map annotation

Ch. 18.

1.  True

2.  Yes, an .mxt can be saved as an .mxd.

3.  To access map template files you can chose on when starting ArcMap or you can go to file and click on new and go to my templates.

4.  To save a symbol you can save it in symbol selector dialogue box then set it as a default symbol.

5.  Two ways to change colors of a graphic is to change the color in symbol selector when choosing symbol or in the layers properties g to symbology and change color there.

Ch. 19

1.  The first thing you do when setting up a map is chose the dimensions and orientation.

2.  The scale changes when you are in layout view because the program adjusts the size of the map to fit the layout that would be printed.

3.  Three customization options for scale bar are label position, division units and text style.

It is important to zoom to 1:1 because it zooms to actual size and you can see the map at the resolution it would be on a printed page.

5.  In data view if you add a graphic you cannot adjust it in layout view.  If you add a graphic in layout view it does not show up in data view.

Lab 7

Lab 6 part 2

Lab 6 part 1

1.  When you have a large-scale map it is east to see symbols because they are larger for the small area they map is covering.  When you change the map scale to a smaller scale the symbols become much smaller and they become hard to distinguish and appear closer together.  If you increase the size of the symbol they becomes less precise in terms of location.

2.  Two ways to access they symbol colors are when in symbol selection you can choose they color when inserting symbol or you can go to layer properties and change the color of the symbols with the color ramp.

3.  In the layer properties dialogue box go to quantities then click graduated symbols

4.  Some symbology styles are public signs style, HAZMAT style, industrial style, road sign style and animal style.  (lol if you like In-n-Out)

5.  In the save layer dialogue box you must save the layer symbology as a .lyr file.

6.  Pyramids help display raster data faster by changing the size of the pixels depending on how zoomed in or out you are.  When zoomed out the pixels are bigger or coarser.  If it stayed the same size it would take forever when changing resolution. 

7.  You can left click twice slowly on it in the TOC and type in a new name.

8.  Normalization is when you divide one attribute by another to get a ratio.  This is normally used for population density.

9.  The problem with a dot density map is if you use it to show population in a polygon it sets the dots randomly and if you change or have to redo it the dot will be placed in a different spot.

Lab 5 part 2

2.
a. Basemap, Hydrology
b. NHDFlowline, NHDPoint, NHDWaterbody, Watersheds.
c. line, point, ploygon, polygon

3.
a. Vector digital data
b. Shapefile
c. yes
d. ArcGIS Geodatabase
e. yes
f. Hydrography, Stream/river, Lake/pond
g. USGS, EPA & USDA

4. a. yes

*Note: Link to CASIL website says its broken*

Lab 5 part 1

1. The advantages of using digital spatial data are that its low cost easy and quick to get a lot of spatial data and are provided in efficient forms like GPS. The disadvantages are that it is time consuming to gather data and not everything is include yet.

2. The most important question we ask our-selves when using already developed spatial-data are does it contain the information I need and is it free.

3. DOQ’s are photographic images that have been corrected for distortions due to camera tilt and terrain displacement, then georeferenced.

4. The National Hydrological Dataset is produced by the United States Geological Survey and the sources are a combination of USGS hydrologic digital line graph files and EPA reach files. The USGS files are used for spatial accuracy and the EPA files are used for attribute information. It uses North American Datum of 1983. It is a comprehensive set of digital spatial data representing the surface water of the United States using common features such as lakes, ponds, streams, rivers, canals, and oceans.
The Geospatial Data Gate way is by the United States Department of Agriculture and its source is the National Resources Conservation Service and it contains environmental and natural resources data.
The Geocommunity Data Depot is a source for SDTS format DEMs from the USGS. It also has lots of data sets downloaded from all over the Internet and is easy to access and is run by the Mindsites Group.

5. DEMs are older and need to be put together like tiles in a mosaic for large areas because they had fixed boundaries. NED provided a seamless data set in high resolution and new algorithms to remove errors created by the advancement in technology.