Title: future of GIS
1(No Transcript)
2Today
- Evaluations
- Review whats happening next week
- Geocoding
- Ponder the future of GIS
- Geocoding Tutorial (7.1 only)
3- Geocoding is the process of plotting geographic
locations for data stored in tabular format. - Address Geocoding is the process of creating
geometric representations for locations (such as
points) from addresses in a non-spatial, tabular
format
4Geocoding Examples
Emergency dispatch operators geocode an address
to determine who should respond to an emergency
call You driving to your friends house in
Denver using MapQuest.com Businesses map your
home zip code to understand regional purchasing
characteristics to fine-tune their marketing
5Address geocoding
- The objective is to match nontoplogical addresses
in data files (.txt, .dbf, .mdb) called event
tables to topological references in a reference
theme.
reference theme map
event table
6reference theme table
7Address geocoding
- Sources for reference themes
- US Census Bureau TIGER (Topologically
Integrated Geographic Encoding and Referencing) - Canada Statistics Canada AMF (Area Master
Files) - UK Royal Mail PAF (Postcode Address File)
8Address geocoding
- TIGER, AMF, and PAF use different structures,
BUT all use a topological model that contains a
street network and address ranges for both sides
of every street.
reference theme
9Address geocoding
- The software module that performs the geocoding
is usually called the geocoding editor. - ArcMaps geocoding editor is as follows we
select Geocode gt Addresses, and then specify 1)
an event table, 2) a reference theme, and 3) an
output shapefile.
10Address Components
- Number 123 Oak ST W, Apt. 2, Pittsburgh, PA 15213
- Street Name 123 Oak ST W, Apt. 2, Pittsburgh, PA
15213 - Street Type 123 Oak ST W, Apt. 2, Pittsburgh, PA
15213 - Direction, suffix 123 Oak ST W, Apt. 2,
Pittsburgh, PA 15213 - Direction, prefix 123 Oak ST, Apt. 2, Pittsburgh,
PA 15213 - Unit Number 123 Oak ST W, Apt. 2, Pittsburgh, PA
15213 - Zone, city 123 Oak ST W, Apt. 2, Pittsburgh, PA
15213 - Zone, zip code 123 Oak ST W, Apt. 2, Pittsburgh,
PA 15213 - Items for Single Number Street Address
- Address Unit
City Zip Code - 123 Oak ST W Apt. 2
Pittsburgh 15213
A typical reference theme layout
11Linear Address Matching (Streets)
- Urban street maps
- four street address digits ranging from low to
high for each side of a street segment. - Left_from Left_to Right_from
Right_to Street_name Type - 101 199 100
198 OAK ST
100
198
Oak St.
199
101
12Address Matching
Oak St
198
100
5950
6011
101
199
123
Pine Av
Attributes of Streets
Parity
Street_
To
Street
Side
From
Type
5950
98
Oak
R
E
2
St
5950
99
Oak
L
O
1
St
R
E
198
Oak
100
St
6011
199
Oak
L
O
101
St
6011
13Alias Tables
- DBF Table (whitehouse.dbf)
- Alias Address
- Casa Blanca 1500 Pennsylvania Ave
- The White House 1500 Pennsylvania Ave
- White House 1500 Pennsylvania Ave
- Washington White House 1500 Pennsylvania Ave
14Address Matchingin ArcGIS
15Address Matching in ArcMap
- Create a new Address Locator in ArcCatalog
- - Q What is an address locator?
- - A An address locator defines the process for
translating nonspatial descriptions of places,
such as street addresses, into spatial data that
can be displayed as features on a map (GIS
Dictionary - ESRI Support, Accessed April 1,
2008)
16In ArcCatalog, create new Address locator
17In ArcCatalog, specify the reference data
(referencetheme) to which the address records
(event table)will be matched
The PAZIP.shphas zip codepolygons. We are
geo-coding zip-codes col-lected at anart
event.
18In ArcMap, open the Address Locator Manager
19In ArcMap, perform a match. You specifythe
event table (art show attendees), soon to be
geocoded to the existingreference theme
(PAZipCodes.shp).
Address Locator(referencetheme)
event table
new output .shp
20You have just geocoded by zip code!
21A spatial join creates a choropleth map
22Only do 7-1 (Geocode household hazardous waste
event participants by zip code)Due May 11
23Some geocoding sites
- http//zip4.usps.com/zip4/welcome.jsp
- http//maps.google.com/
- http//www.geocode.com/geocode.htm
- http//www.mapquest.com
- http//www.zipinfo.com
24The future of GIS
25- When GIS is the pinnacle of everything,
geography loses. What is happening is that many
GIS users have no knowledge of geography. With a
few clicks of a button a GIS jockey can describe
data's distribution but cannot explain why things
are the way they are. A monkey can do that work.
http//catholicgauze.blogspot.com/2007/03/
- Should GIS separate from geography?
26According to Jack Dangermond (2008)
- My forecast is that as society becomes familiar
with looking at things through geospatial
visualization, they will be increasingly
interested in services that go beyond simple maps
and images. GIS servers managed by public and
private GIS organizations will be used to provide
these kinds of complementing services.
ESRI Founder Jack Dangermond Predicts the Future
of GIS Jan 11, 2008
27According to Roger Tomlinson (2009)
- Baumann What developments in GIS do you
anticipate in the next 10 years? Tomlinson A lot
of the current trends are going to continue.
Hardware will continue to get cheaper and more
powerful. Software will get easier to use and
more robust. I hope the universities will
continue to expand their course offerings to meet
the growing need for GIS professionals. Senior
management will become increasingly aware of the
benefits that accrue from the use of GIS in their
organizations. We will see more countries
adopting national policies, and GIS will be an
important part of cabinet-level discussions. I
hope that trained geographers will become a part
of national decision-making processes. Also, I
think that high-level military personnel should
have a good knowledge of the capabilities and
potential of a GIS. Im very positive about the
future of GIS. Its the right technology at the
right time. When I think of all the major
problems that we face throughout the world today
- overpopulation, food shortages, reduced
agricultural production, adverse climate change,
poverty - these are all quintessentially
geographic problems. These problems are all
concerned with the human relationship to the
land, and this is where GIS can make its biggest
contribution. GIS is the technology of our times
and is uniquely suited to assist in solving the
problems that we face.
Father of GIS Roger Tomlinson on Developments
of GISthrough 2019 (Feb. 2009 interview)
28Some potentially hot markets?
- Web-based data access
- ArcIMS (Internet Map Server)
- provides GIS-based services w/out GIS software
GIS for everyone! - server-based mapping and basic analysis
- for web mapping applications
- Business marketing/advertising analysis
- business intelligence systems
- Projects integrating time
- urban growth/planning
- RS, NOAA
- environmental change/monitoring
- Health care/epidemiology (CDC, NIH, State Health
Depts) - Social sciences (survey, interview, census data)
- Military (especially GPS)
- Portable device software/products
- Large companies w/ out much GIS knowledge
- Open source GIS
29Where is GIS going?
- GISday summary of answers
- Web-based information sharing
- so Grandma Jones can use it
- do it yourself online
- interactive
- multiple orgs using same GIS
- As decision making proof
- prove it visually - people want to see
advantages - marketing analysis
- Real-time applications
- transportation (bus syst., pizza, cell phone
where the hell am I) - medical inter and intranet
- Security applications
- The war is being fought with GIS
- Interoperability
- to share data (ESRI guy)
- For maintenance of networks (pipes, utilities)
- Research part will stay same as needed (ESRI
guy) - Less emphasis on standards and more on filters
30Geospatial Intelligence, Middle East Conference
(5 10/13, 2009)
- Enhancing National Security And Enabling Military
Support By Utilizing 21st Century Geospatial
Intelligence Capabilities - Effectively Exploiting Geospatial Intelligence To
Enhance Regional Security And Support Future
Battle Command - The Operational Case For Effective Geospatial
Intelligence - Geospatial Intelligence Support To Military
Operations - Motion Imagery An Essential Part Of An Enhanced
All Source GEOINT Exploitation Environment - UAV Acquired Geospatial Intelligence Information
Tactical And Future Applications - Case-Study DigitalGlobe - Imagery For Crisis
Operations - Keeping Our Secrets Secret Effective Acquisition
Of Assured Complex Systems - Case Study Utilizing Collaborative Geospatial
Intelligence To Support Operations The EU
Satellite Centre - Developing Effective Geospatial Intelligence
Capabilities That Meet The Needs Of Multiple
Stakeholders - The Impact Of Spatial Data Quality On Decision
Making - Geographic Information A Key Driver For Modern
Regional Development - Making Sense Of The Deluge Integration Of Data,
Accessibility To The Information And Exploitation
Of The Geospatial Intelligence - The Integration Of Defense Geospatial
Intelligence - Case Study Exploiting Geospatial Technology To
Investigate Criminal And Terrorist Activities And
Improve Civil Defense The D-SCENT Project - Enhancing Interoperability Heading For The Too
Hard Basket? - Utilizing Space-Base Commercial Observation
Capabilities To Enhance National And Regional
Security - Assessing The Possibilities Of Establishing A
Regional Space Agency To Develop Intelligence
Capabilities - Addressing The Challenge Of Achieving True
Interoperability
31What about geovisualization?
- It too will follow the money
- spatial data mining for
- marketing/advertising
- banking/stock market/real estate (location,
location, location) - animation/video games/movies
- virtual tourism/ virtual real estate
- military/pilot training
- What about research?
- used with hypothesis testing (this is happening
now) - knowledge discovery in databases (patterns)
- molecular/cosmic scales (non-human scales)
- genetic engineering/human imaging
- archaeology, geology, oil exploration,
climatology, oceanography