11.1 Geospatial Lab Application
Landsat Imagery
This chapter’s lab application builds off the remote sensing basics of the previous chapter and returns to using the MultiSpec program. In this exercise,
you’ll be starting with a Landsat TM scene and creating a subset of it to work
with. During the lab, you’ll examine the uses for several Landsat TM band
combinations in remote sensing analysis.
Objectives
The goals for this exercise are:
a Further familiarizing yourself and work with satellite imagery in MultiSpec.
a Creating a subset image of a Landsat scene.
a Examining different Landsat bands in composites and comparing the
results.
a Examining various landscape features in multiple Landsat bands and
comparing them.
a Applying visual image interpretation techniques to Landsat imagery.
Obtaining Software
The current version of MultiSpec is available for free download at http://
cobweb.ecn.purdue.edu/~biehl/MultiSpec.
Important note: Software and online resources sometimes change fast.
This lab was designed with the most recently available version of the software
at the time of writing. However, if the software or Websites have significantly
changed between then and now, an updated version of this lab (using the newest versions) is available online at http://www.whfreeman.com/shellito1e.
Lab Data
Copy the folder ‘Chapter11’—it contains:
a A Landsat 5 TM satellite image (called ‘neohio.img’) from 9/11/2005 of
northeast Ohio, which was constructed from data supplied via OhioView.
a The Landsat TM image bands refer to the following portions of the electromagnetic (EM) spectrum in micrometers (m):
• Band 1: Blue (0.45 to 0.52 m)
• Band 2: Green (0.52 to 0.60 m)
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Landsat Imagery
This chapter’s lab application builds off the remote sensing basics of the previous chapter and returns to using the MultiSpec program. In this exercise,
you’ll be starting with a Landsat TM scene and creating a subset of it to work
with. During the lab, you’ll examine the uses for several Landsat TM band
combinations in remote sensing analysis.
Objectives
The goals for this exercise are:
a Further familiarizing yourself and work with satellite imagery in MultiSpec.
a Creating a subset image of a Landsat scene.
a Examining different Landsat bands in composites and comparing the
results.
a Examining various landscape features in multiple Landsat bands and
comparing them.
a Applying visual image interpretation techniques to Landsat imagery.
Obtaining Software
The current version of MultiSpec is available for free download at http://
cobweb.ecn.purdue.edu/~biehl/MultiSpec.
Important note: Software and online resources sometimes change fast.
This lab was designed with the most recently available version of the software
at the time of writing. However, if the software or Websites have significantly
changed between then and now, an updated version of this lab (using the newest versions) is available online at http://www.whfreeman.com/shellito1e.
Lab Data
Copy the folder ‘Chapter11’—it contains:
a A Landsat 5 TM satellite image (called ‘neohio.img’) from 9/11/2005 of
northeast Ohio, which was constructed from data supplied via OhioView.
a The Landsat TM image bands refer to the following portions of the electromagnetic (EM) spectrum in micrometers (m):
• Band 1: Blue (0.45 to 0.52 m)
• Band 2: Green (0.52 to 0.60 m)
342