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

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.

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

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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

Download Data Web Source http://smap.swcb.gov.tw/KMLDownload.asp?keepThis=true&TB_iframe=true&height=300&width=600

Download Data Google Earth

Transfer Data Format kml2shp

Transfer Data Format kml2shp

Extract Taipei Data Select By Location

Extract Taipei Data Export Data

Potential Analysis Buffer

Add Field Batch

Add Field Batch

Transform Data Project

Export Data Project

Calculate Area Calculate Geometry

Calculate Area Calculate Geometry

Population Data Filtration

Population Data Filtration Download data: http://ca.gov.taipei/ct.asp?xItem=1071180&ctNode=41896&mp=102001

Population Data Filtration

Population Data Filtration

Population Data Add & Join Data

Population Data Add & Join Data

Copy Data to Another Column Field Calculator

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

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

Extract Potential Region Select By Location

Extract Potential Region Select By Location

Potential Region Info. Statistics

Potential Region Info. Statistics

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