GIS in Water Resources

Homework Exercise #2

Part A

Do Exercise 1 on Introduction to Arc GIS and turn in the map and chart layout requested at the end of that Exercise

Part B

Here are some short questions in response to which you should present a short discussion illustrated with pictures if necessary.

1. In GIS, geographic data has a number of ways of being represented. Give a brief description (including a sketch) of the following geographic data types.

- Vector

- Raster

- Triangulated Irregular Network

2. Explain the difference between the terms Geodatabase and Feature Dataset.

3. Explain the difference between feature selection using a tabular query and feature selection using a spatial query.

4. Explain the difference between a feature class and an object class.

Please staple your answers to Parts A and B together and turn them in on Thurs 11 Sept.