Download Zach Vernon`s presentation

Zach Vernon
GIS/RS Research Associate
Houston Advanced Research Center
[email protected]
Introduction to ArcExplorer
ArcExplorer for Education and ArcExplorer
Online
 Adding Web Map Services to ArcExplorer
 Adding spatial data to ArcExplorer
 Discussion of exercise datasets
 Investigating and Symbolizing data in
ArcExplorer
 Selecting and Buffering data in ArcExplorer
 Distance calculations in ArcExplorer
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Freely available, lightweight GIS data viewer
Basic GIS functions available (buffer, query, measure)
Connect to Internet map servers
Display and query standard ESRI data Sources
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Shapefiles
ArcInfo Coverages
Images
ArcIMS Services
Interact with both spatial and attribute data
Symbolize data and create thematic maps
Perform basic spatial analysis
Create maps AND projects that can be shared with
colleagues
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ArcExplorer for Education, which many of you have installed, is an
expanded version of the ArcExplorer software
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Supported on Mac
Displays MrSid (a common compressed image format)
Displays CAD data
Can Create Projections (the mathematical transformations used to get
3D data to a 2D surface)
 Create data layers from table of x,y coordinates
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User Community with lesson plans and data:
http://edcommunity.esri.com/software/aejee/
 Political Geography lesson centered around 2008 election
 Science lesson centered around N.A. Hurricane Data
 History lesson based on Lewis and Clark routing data
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ArcGIS Explorer
 More CPU-intensive, but more powerful free GIS Data
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Viewer from ESRI
Supports a wider variety of datasets (geodatabases,
KML/KMZ, and layer packages)
Supports ArcGIS Server web mapping services, in
addition to ArcIMS
Integrate a wider variety of content, including
geotagged photos and videos
Supports 3D rendering, very similar to GE when in
that mode
Built-in basemaps and large library of user data
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Start ArcExplorer
Click the Add Data button
Under “WWW,” select “Add Web Site”
Type in http://geodata.epa.gov
Select “AFS_FS” and add County Boundaries
and Air Emissions to add to map. These are
the US EPA Regulated Air Emissions
Facilities.
Zoom to Houston Region using the
“magnifying glass” tool
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Click the Add Data button
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Browse to where the exercise data is stored
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Add each layer by double clicking on it
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Benzene, from:
http://emergency.cdc.gov/agent/benzene/basics/facts.asp
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Where it is found and used
 “Benzene is formed from both natural processes and human
activities.”
 “Natural sources of benzene include volcanoes and forest fires.
Benzene is also a natural part of crude oil, gasoline, and
cigarette smoke.”
 “Benzene is widely used in the United States . It ranks in the top
20 chemicals for production volume.”
 “Some industries use benzene to make other chemicals that are
used to make plastics, resins, and nylon and synthetic fibers.
Benzene is also used to make some types of lubricants, rubbers,
dyes, detergents, drugs, and pesticides.”
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Long-term Health effects
 “The major effect of benzene from long-term exposure is on the blood.
(Long-term exposure means exposure of a year or more.) Benzene
causes harmful effects on the bone marrow and can cause a decrease in
red blood cells, leading to anemia. It can also cause excessive bleeding
and can affect the immune system, increasing the chance for infection.”
 “Some women who breathed high levels of benzene for many months
had irregular menstrual periods and a decrease in the size of their
ovaries. It is not known whether benzene exposure affects the
developing fetus in pregnant women or fertility in men.”
 “Animal studies have shown low birth weights, delayed bone formation,
and bone marrow damage when pregnant animals breathed benzene.”
 “The Department of Health and Human Services (DHHS) has
determined that benzene causes cancer in humans. Long-term exposure
to high levels of benzene in the air can cause leukemia, cancer of the
blood-forming organs.”
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National Emissions Inventory 1999
 Facility-based annual average emission rates of HAPs
and criteria pollutants of interest from industrial point
sources for 1999. Values in Avg TPY.
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TCEQ State Implementation Plan Facilities 2001
 Facility and process-based speciated point source
emissions inventory used by TCEQ modeling staff for
modeling 8-hour ozone SIP (August/September 2000
episode) in Houston for 18 VOC classes. Values in Avg
TPY.
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National Air Toxics Assessment 1999
 Tract-based annual average ASPEN-modeled ambient concentrations
and HAPEM-modeled population exposures at census tract level for
Harris County for RIOPA VOC, carbonyl and PM2.5 compounds.
Values in µg/m3.
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Relationships of Indoor, Outdoor, and Personal Air (RIOPA) 2001
 Personal exposure, outdoor and indoor concentrations measured at
residences during each visit. The concentration of air pollutants were
in eight separate tables based on the analytical types; VOC, Carbonyl,
PM mass, PM XRF, PM ICPMS, PM OC EC, Particle phase PAH, Gas
phase PAH). Aggregated by Census Tract. Values in µg/m3.
 Questionnaires (Technician Walkthrough, Baseline Survey, and
Activity questionnaire) results, air exchange rate, house volume, and
average temperature and humidity inside and outside during the
sampling. Also collected information concerning time and location of
microenvironment where participants spent time during sampling.
Open the Properties for the NATA ASPEN
dataset
2. Under the symbols tab, select “Graduated
Symbols”
3. Select 10 classes and use “ASPENTotal” as the
field
4. Select a custom color as Start color – select a
light green
5. Select a custom color as End color – select a
dark red
6. Apply
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Click the Labels tab
Select “ASPENTotal”
Font = Calibri, 10, Bold
Click effects and add a White Glow
Repeat this process and set up symbology
and labels for the other polygon layers, use
your own colors and label styles based on the
fields listed below
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NATA HAPEM 1999 Benzene: HAPEMTotal
RIOPA Outdoor Benzene: BENZ_OUT
RIOPA Personal Benzene: BENZ_PER
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Open the Properties for the NEI 1999
Benzene layer
Under Symbols, select graduated
Symbols
8 classes, using “AvgOfEmiss”
Change the Style to Traingle
Start color: Cyan, Start size: 10
End color: Custom – dark blue, End size:
26
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Label using “AvgOfEmiss”
Font = Arial Black, 10, Bold, White Color
Click effects and add a black glow
Repeat this process and set up symbology
and labels for the other point layers, use
your own colors and label styles based on
the fields listed below
 NEI 1999 low level point sources Benzene:
AvgOfEmiss
 RIOPA Outdoor Benzene: AvgOfBenzene
Turn on the NEI 199 Benzene Layer, the NATA
HAPEM layer, and County Boundaries
2. Highlight the NEI 1999 Benzene Layer and
Open the Query Builder
3. Build an expression that read “( AvgOfEmiss >
10)” and click execute
4. Click “Statistics” and run them on the
AvgOfEmissions field
5. Click the Buffer tool
6. Select a buffer distance of 5 miles, and hit
apply
7. Clear buffer
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Select the Measure tool
Measure the distance from the highest emission average
to the highest exposure average, record this distance
3. Clear your selection by clicking the Eraser
4. Highlight the NEI 1999 Benzene Layer and Open the
Query Builder
5. Build an expression that read “( AvgOfEmiss > 10)” and
click execute
6. Now run a Buffer using the distance you just recorded
7. Center your map by zooming in or out and go to
Edit>Copy Map Image to File and save your map as a
jpeg
8. If time allows, create additional overlays using other
datasets, such as the TCEQ 2001 emissions data with the
RIOPA Exposure data
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