GIS & Health ESPM 9: W 5-8 April 7, 2010 Instructors: Maggi Kelly Kevin Koy Mark O’Connor Geospatial Innovation Facility College of Natural Resources - UC Berkeley

ESPM 9 – GIS and Health - Spring 2009 Today’s Schedule LectureLecture –GIS Introduction –GIS Functions you will use today Lab 1Lab 1 –Getting to know GIS

ESPM 9 – GIS and Health - Spring 2009 Geographic Information Systems GIS DefinitionsGIS Definitions –A GIS is a system for the: entry and editing, storage, query and retrieval, transformation, analysis, and display (soft copy) and printing (hard copy) of spatial data –Digital spatial data from many sources Key point: All data in a GIS is georeferencedKey point: All data in a GIS is georeferenced –located by means of geographical coordinates with respect to some reference system –This is how a GIS differs from computer-aided drafting or graphics program

ESPM 9 – GIS and Health - Spring 2009 Data Spatial Data Formats VectorVector Raster/GridRaster/Grid

ESPM 9 – GIS and Health - Spring 2009 Raster

ESPM 9 – GIS and Health - Spring 2009 Vector

ESPM 9 – GIS and Health - Spring 2009 Points, nodes Lines, arcs Polygons, objects Raster, pixels, grid cells Data Measurement of point pattern Distance from roads, length of flow path Patch size, Patch shape Pattern, connectivity Sample points, Disease cluster… Animal behavior, water quality… Areas of protection or invasion… Animal movement, invasive species dispersal… Analysis GIS: Linking Spatial Data with Attribute Data Attributes Process / Interpretation Fast food location, organic food stand location… Walking path to work… Hospital service zone… Access to fresh food…

ESPM 9 – GIS and Health - Spring 2009 Database Files

ESPM 9 – GIS and Health - Spring 2009 Spatial Data Attributes

ESPM 9 – GIS and Health - Spring 2009 Vector Data

ESPM 9 – GIS and Health - Spring 2009 GIS Software you will use ESRI’s ArcGIS is the software that you will use for the labs.ESRI’s ArcGIS is the software that you will use for the labs.

ESPM 9 – GIS and Health - Spring 2009 Arc Map Create maps View and edit data Analyze data (Geoprocessing)

ESPM 9 – GIS and Health - Spring 2009 Arc Catalog View data (like Windows Explorer) Graphical previews Metadata Tables

ESPM 9 – GIS and Health - Spring 2009 Arc Toolbox Map Projections Tools for commonly used tasks

ESPM 9 – GIS and Health - Spring 2009 Functions that you will use There are a number of functions that you will use in the lab today:There are a number of functions that you will use in the lab today: –Navigation tools –Query / Select by attribute –Buffer –Clip –Merge & Dissolve –Making a Map –Symbology/Display

ESPM 9 – GIS and Health - Spring 2009 Data Query

ESPM 9 – GIS and Health - Spring 2009 Geospatial Query: POINTS near LINES Select by location: Toxic release sites within 1 mile of a river Image credit: K. Kurland, 2006

ESPM 9 – GIS and Health - Spring 2009 Geospatial Query: POINTS near POINTS Select by location: Schools within ½ mile of polluting companies Image credit: K. Kurland, 2006

ESPM 9 – GIS and Health - Spring 2009 Geospatial Query: POLYGONS intersecting LINES Select by location: Municipalities that intersect Interstates Image credit: K. Kurland, 2006

ESPM 9 – GIS and Health - Spring 2009 Geospatial Query: LINES intersecting POLYGONS Select by location: Lines intersecting polygons Image credit: K. Kurland, 2006

ESPM 9 – GIS and Health - Spring 2009 Function: Dissolve/Merge When you want to dissolve boundaries between similar objects, you can use the Dissolve function.When you want to dissolve boundaries between similar objects, you can use the Dissolve function. To join features from multiple inputs into a single output use Merge.To join features from multiple inputs into a single output use Merge.

ESPM 9 – GIS and Health - Spring 2009 Function: Buffer When you want to look at the distance away from an object, you can create spatial buffers.When you want to look at the distance away from an object, you can create spatial buffers.

ESPM 9 – GIS and Health - Spring 2009 Function: Intersect & Union When you need to combine different layers or features, you can use:When you need to combine different layers or features, you can use: –Intersect: to find what is common to both inputs; –Union: to find what is in both inputs.

ESPM 9 – GIS and Health - Spring 2009 Function: Clip When you need to clip, or cookie-cut one layer with another layer, you can use Clip.When you need to clip, or cookie-cut one layer with another layer, you can use Clip. You can also do the opposite, with Erase.You can also do the opposite, with Erase.

ESPM 9 – GIS and Health - Spring 2009 Geoprocessing Tools

ESPM 9 – GIS and Health - Spring 2009 Power of Maps Maps gain their value in three ways:Maps gain their value in three ways: –As a way of recording and storing information –As a means of analyzing locational distributions and spatial patterns –As a method of presenting information and communicating findings

ESPM 9 – GIS and Health - Spring 2009 Title Legend Projection Grid Data Source Inset map Map Body Author North Arrow Scale Layout: Map Elements

ESPM 9 – GIS and Health - Spring 2009 Next Weeks Next week:Next week: –Creating spatial data –GPS and geocoding

ESPM 9 – GIS and Health - Spring 2009 Your Workspace Logging on User: !workshopuser Password: WRKshop USR! Working Folder: Create a folder that all of your work will be stored in C:\Workspace\YOURNAME Copy the data into this folder Data Z:\ESPM9