gis mapping webinar part 3
DESCRIPTION
Using fusion tables and shape files to create maps with polygons.TRANSCRIPT
Mapping with
Google Fusion Tables
May 21, 2014
Welcome!
• Part 3 of a 3-part series
– Part 1: Intro to GIS Mapping (April 23)
– Part 2: Mapping in Google Fusion Tables (May 14)
– Part 3: Mapping in Google Fusion Tables (Today, May 21)
• Presenters – Christina Sanabria, LSC
– Brian Rowe, LSNTAP
• Recording will be available on LSNTAP’s
YouTube channel
• Phone lines are muted – please send questions
via chat
Today’s Objectives
1. How to map geographic areas (like counties
or zip codes).
2. Create a multi-layer map (a map that displays
two or more data sets at a time).
Number of Children in Foster Care, Ohio
• Counties represented
by dots
• Can’t see size, shape
or extent of the
county
The number of children placed in
substitute care by public agencies.
Source: Ohio Department of Job and
Family Services, via the Kids Count Data
Center
http://datacenter.kidscount.org/
Number of Children in Foster Care, Ohio
• Counties displayed
as polygons (shapes)
• See data more clearly
The number of children placed in
substitute care by public agencies.
Source: Ohio Department of Job and
Family Services, via the Kids Count Data
Center
http://datacenter.kidscount.org/
Polygon Maps with Fusion Tables
Any geographic region
• Counties, zip codes,
census tracts
To create a map like this,
we need a KML file with
county boundaries
What is a KML file?
.kml is a filetype
• Just like .doc is Word and .xls is Excel
• Tells Google where and how to draw geographic
regions
Familiar with GIS? .kml is Google’s version of.shp
files
Why do I need a KML?
A Fusion Table containing KML data can be
merged with other Fusion Tables.
• Upload KMLs to Fusion Tables
• Merge with statistical data to make maps that
display geographic areas
Where can I find KML files?
Tigerline (US Census)
• https://www.census.gov/geo/maps-data/data/tiger-
kml.html
• Counties and census tracts
GeoCommons
• http://geocommons.com/
• Many geographies, uploaded by community of users
Questions so far?
Project 1:
Elder Poverty in Ohio
Project 1: Elder Poverty in Ohio
Project goal:
Our Elder Law Taskforce is trying to plan for the upcoming
year and needs data to inform their process.
They want to know:
• Are there any geographic areas of concentration of elder
poverty?
• If so, where?
Project 1: Elder Poverty in Ohio
Project goal: Map elders in poverty by Census Tract
Project 1: Elder Poverty in Ohio
We’ll need to
• Structure information so we can map it
• Merge two Fusion Tables together (combine
poverty data + geographic data)
• Style the polygons with colors
• Set up a custom info window
• Share and publish the map
About Census Tracts
• Geographic region defined for the purpose of taking
a census.
• Smaller than a county, provide more granular data.
• Usually coincide with limits of cities, towns or other
administrative areas – homogeneous population.
• Frequently used.
Project 1: Gathering Poverty Data
American FactFinder
Data from Census, American Community Survey and more
http://factfinder2.census.gov/
FIPS Codes • Remember merging? We need a unique identifier (common,
standardized id) for our geographies in order to successfully merge
different tables.
• FIPS codes make good unique identifiers because they’re
consistent. Other terms have a lot of variation (St. John vs Saint
John).
FIPS code for each
census tract
FIPS Codes – Breaking it Down
39 = Ohio
001 = Adams County, OH
7701 = Census tract 7701
Complete code: 390017701000
Curious About FIPS codes in your Area?
Questions so far?
Columns for This Dataset
• Total population
• Total below poverty level
• Total Male below poverty
• below poverty - Male under 5 years
• below poverty - Male 5 years
• below poverty - Male 6 to 11 years
• below poverty - Male 12 to 14 years
• below poverty - Male 15 years
• below poverty - Male 16 and 17 years
• below poverty - Male 18 to 24 years
• below poverty - Male 25 to 34 years
• below poverty - Male 35 to 44 years
• below poverty - Male 45 to 54 years
• below poverty - Male 55 to 64 years
• below poverty - Male 65 to 74 years
• below poverty - Male 75 years and over
• Total Female below poverty
• below poverty - Female under 5 years
• below poverty - Female 5 years
• below poverty - Female 6 to 11 years
• below poverty - Female 12 to 14 years
• below poverty - Female 15 years
• below poverty - Female 16 and 17 years
• below poverty - Female 18 to 24 years
• below poverty - Female 25 to 34 years
• below poverty - Female 35 to 44 years
• below poverty - Female 45 to 54 years
• below poverty - Female 55 to 64 years
• below poverty - Female 65 to 74 years
• below poverty - Female 75 years and over
How to Aggregate these 4 Columns?
• Total population
• Total below poverty level
• Total Male below poverty
• below poverty - Male under 5 years
• below poverty - Male 5 years
• below poverty - Male 6 to 11 years
• below poverty - Male 12 to 14 years
• below poverty - Male 15 years
• below poverty - Male 16 and 17 years
• below poverty - Male 18 to 24 years
• below poverty - Male 25 to 34 years
• below poverty - Male 35 to 44 years
• below poverty - Male 45 to 54 years
• below poverty - Male 55 to 64 years
• below poverty - Male 65 to 74 years
• below poverty - Male 75 years and over
• Total Female below poverty
• below poverty - Female under 5 years
• below poverty - Female 5 years
• below poverty - Female 6 to 11 years
• below poverty - Female 12 to 14 years
• below poverty - Female 15 years
• below poverty - Female 16 and 17 years
• below poverty - Female 18 to 24 years
• below poverty - Female 25 to 34 years
• below poverty - Female 35 to 44 years
• below poverty - Female 45 to 54 years
• below poverty - Female 55 to 64 years
• below poverty - Female 65 to 74 years
• below poverty - Female 75 years and over
Using Formula Columns
We can use a formula column to perform math using data
from our dataset.
Our formula:
'below poverty - Male 65 to 74 years' + 'below poverty - Male 75 years
and over' + 'below poverty - Female 65 to 74 years' + 'below poverty -
Female 75 years and over'
• below poverty - Male 65 to 74 years
• below poverty - Male 75 years and over
• below poverty - Female 65 to 74 years
• below poverty - Female 75 years and over
Questions so far?
Project 2:
Affordable Housing Options for
Ohio’s Older Adults
Project 2: Affordable Housing for Ohio’s Older Adults
Project goal:
Housing is an area of law that impacts many older adults.
We want to analyze the availability of affordable housing
and compare to poverty rates.
They want to know:
• Are there sufficient affordable housing options
throughout the state?
• Is affordable housing located in areas with greatest
need?
Project 2: Affordable Housing for Ohio’s Older Adults
Project goal: Layer housing options over elder
poverty
Project 2: Gathering Data
“The Ohio Housing Locator is a free, searchable database of
affordable, accessible rental housing throughout Ohio.”
http://www.ohiohousinglocator.org/
Project 2: Layer Two Datasets into a Single Map
The Fusion Tables Layer Wizard
http://fusion-tables-api-
samples.googlecode.com/svn/trunk/FusionTablesLayerWizard/src/inde
x.html
Final questions?
Before you go…
We need to have a Data Pep Talk
Data Resources
American Community Survey
http://factfinder2.census.gov
Ohio Housing Locator
http://www.ohiohousinglocator.org/
“Data, Demographics, Statistics” resource list,
Legal Services Northern California
http://equity.lsnc.net/data-demographics-statistics/
Don’t be afraid to search!
Go Get Data!
• Start mapping your own data, or data from your local
partners
• Don’t be afraid to search!
– Online searches
– Seek out Open Data resources in your area
• Expect that the data will require some manipulation to be
“map ready”
• Bookmark and save useful data sources/ datasets
• Find something interesting? We’d love to know about it.
Any maps to share?
• At the end of last week, we challenged you to start
experimenting with maps in Google Fusion Tables.
• Does anyone have a sample map to share? Or any
questions that came up during that process?
Happy Mapping!
• Recordings are posted on LSNTAP’s YouTube channel
– Channel URL: https://www.youtube.com/user/NTAPvideos
– Session 1: Intro to GIS Mapping:
https://www.youtube.com/watch?v=qUQwSmIzzRo&list=UUa-
OqKCx5ruSg5MGzN187xQ
– Session 2: Intro to Google Fusion Tables:
http://www.youtube.com/watch?v=EvixbkSzFuQ&list=UUa-
OqKCx5ruSg5MGzN187xQ&feature=share
• Check in on LRI for new content
– New content is visible on the homepage: http://www.lri.lsc.gov
– Sign up for email updates to see new content:
http://www.lsc.gov/get-email-updates-lsc
• Questions? Got Stuck? Contact us!