AGS 722

Spatial Information System for Resource Management

Assignment No. 3

 

 

 

1.      Complete Chapter 4  of Inside ArcView GIS 8.3 on Thematic Classification using the following exercises.

·         Exercise 4.1, 4.2 and 4.3: Data Exploration

·         Exercise 4.4: Classification involving color ramps and normalization.

 

(a)   What is a thematic map? Why do we need it?

(b)   Using  95 Census Blkgrp data set,  and field Households compare the thematic maps as the results of the classification using Quantile and Equal Interval methods. Discuss the differences.

 

  1. Create Assign3 data frame and add Soilgroup data set as a map layer into this data frame.

a)      Make a thematic map of Soil textural class and Drainage class from the attribute table of this map layer.

b)      Make a thematic map of Soil Phosphorus content of soils (ppm) consist of 5 classes according to your own design.

 

  1. What are the differences between a shape file and a geodatabase?   

      Discuss.

 

 

Due: December 2, 2004.