Eyes in the Sky II > GIT Web Course > Module 2 > Week 8 > Getting to Know Cartography in GIS > Getting to Know Cartography in AEJEE

Week 8: Monitoring Fires

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Getting to Know Cartography in AEJEE

On this page, you'll review database and spatial querying as well as practice symbolizing and classifying data. You'll also find out how to gather statistics on numeric fields you query.

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Launch AEJEE and Open the Aspen Fire Project

AEJEE_logo
Aspen_Fire_Blue_Marble




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Investigate the Spread of the Fire with Database Queries

You might wonder . . . How far did the fire spread and how many acres did it consume by the end of Day 1? Day 2? Day 3? Day 4? Use database queries to find out.

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Create and execute a query that shows how far the fire spread on the first day

How would you write the query statement?
(DATE = 617)
  1. Make sure the Daily Fire Perimeter layer is the active layer by click on its name in the Table of Contents. Click the Query Builder... Query builder button button or select Tools > Query Builder.
    tools query builder
  2. A new window opens. Move it to where you can see both the Query Builder and the map.
    2 query builder open
  3. In the Query Builder window select the field DATE by clicking once on it. Then click the "equals" sign. Last choose the Value 617 by clicking once on it. You can also type in this equation (DATE = 617) into the box in the middle of the window. Click Execute. One record is selected on the map.
    query builder executed

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Create and execute a query to find out how many acres burned by the end of Day 2

Hint: To find out how many acres burned by the end of the second day, build and execute a query that selects the features that burned on both June 17 and June 18, 2003.

How would you write the query statement?

(DATE = 617) or (DATE = 618) is the query to use. If you use the expression, (DATE = 617) and (DATE = 618), no features will be selected since there are no features that have two dates.

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Create and execute a query to find out how many acres burned by the end of Day 3

How would you write the query statement?

(DATE = 617) or (DATE = 618) or (DATE = 619) is the query to use.

How many acres burned?
3,230 acres had burned by the end of the third day.

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Create and execute a query to find out how many acres burned by the end of Day 4

How would you write the query statement?

(DATE = 617) or (DATE = 618) or (DATE = 619) or (DATE = 620) is the query to use.

How many acres burned?
6,348.82 acres had burned by the end of the fourth day.
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Investigate the Spread of the Fire with Spatial Queries

You might wonder . . . How many parcels were within one mile of the fire on Day 1? Day 2? Day 3? Day 4? Use spatial queries to find out.

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Select the area of the fire on Day 1

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Buffer the area of the fire to find parcels that are within one mile of it on Day 1

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Show the results of the spatial query

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Repeat the steps above to find the parcels that were within one mile of the fire on days two, three, and four

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Create a New Project to Explore Additional Fire Data

Now that you have explored a specific fire (the Aspen fire), you will broaden your focus to look at fires globally and in the U.S. You will create a new project, add image and vector data and symbolize it as needed to help you visualize patterns in fire data.

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Where were the fires in February 2010?

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How Do Fire Prone Areas Change throughout the year?

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Create a Map to Tell a Story of Interest to You

This is the screenshot that you will post to your discussion group for your required weekly assignment.

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Resources

  • 60 Minutes Program "Age of Megafires" viewable online. Shows the results of the Aspen Fire Age of Megafires
  • Wildland Fire Graphics and information from CBS News Wildland Fire

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Movies on this Page

This section is under construction - come back soon!

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How to download movies

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Flash Video Versions

Download these versions to play on your computer. You'll need an appropriate movie player to view the file, such as Flash Player, Real Player (Mac / Win), or Adobe Media Player.

Movie Icon Investigating the Spread of the Fire Using Database Queries in AEJEE

Movie Icon Investigating the Spread of the Fire Using Spatial Queries in AEJEE

Movie Icon Creating a New Project in AEJEE

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iPod Versions

Download these version to play on your iPod or iPhone.

Movie Icon Investigating the Spread of the Fire Using Database Queries in AEJEE

Movie Icon Investigating the Spread of the Fire Using Spatial Queries in AEJEE

Movie Icon Creating a New Project in AEJEE


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