1. Geographic Information System ─ Practice Class
Advance Spatial Searching
Chan, Chun-Hsiang
TYF LAB, Dept. of Social and Regional Development
National Taipei University of Education
2015/04/30
Sigulda Photo by Миша in Latvia

2. Project – Draw Disaster Potential Region
Download debris-flow location open data from SWCB, however, that data format is google earth kml, you cannot directly open them in ArcMap.
Think about this question! How can you transfer these data from google earth kml to ArcMap shapefile.
Select all debris-flow data which is located in Taipei city, and export to a new shapefile.
In order to analyze these data much easily, we assumed that the damage potential region is equal from upstream to downstream. As the result, the potential effected region is 250m, 500m, 1 km from debris-flow.

3. Project – Draw Disaster Potential Region
Question:
If we divide three different disaster potential region by the distance from the debris-flow river, including 250m, 500m, 1km. Please answer these questions a following statements.
How many villages are endangered which are located in debris-flow effected regions? Effected population? Effected area in km2?
Buffer region entry
Effected regions
Effected populations
Effected areas (km2)
250 m
500 m
1000 m

4. The way to “Solve” your problem
Dubai Mall Photo by Миша in Dubai, United Arab Emirates

5. Advance Spatial Searching
Outline
Load data
kml2shp
Select Layer by Attribute
Select Layer by Location
Export Data
Buffer
Add Field
Project
Calculate Geometry
Field Calculator
Statistics

6. Download Data Web Source

7. Download Data
Google Earth

8. Transfer Data Format
kml2shp

9. Transfer Data Format
kml2shp

10. Extract Taipei Data
Select By Location

11. Extract Taipei Data
Export Data

12. Potential Analysis
Buffer

13. Add Field
Batch

14. Add Field
Batch

15. Transform Data
Project

16. Export Data
Project

17. Calculate Area
Calculate Geometry

18. Calculate Area
Calculate Geometry

19. Population Data
Filtration

20. Population Data Filtration Download data:

21. Population Data
Filtration

22. Population Data
Filtration

23. Population Data
Add & Join Data

24. Population Data
Add & Join Data

25. Copy Data to Another Column
Field Calculator

26. Copy Data to Another Column
Field Calculator
Set your condition as VB Script

27. Copy Data to Another Column
Field Calculator
Brain storming!!!

28. Extract Potential Region
Select By Location

29. Extract Potential Region
Select By Location

30. Potential Region Info.
Statistics

31. Potential Region Info.
Statistics

32. If you have question, you may still send message
The end
If you have question, you may still send message
and let me know!
Riga Photo by Миша in Riga, Latvia