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Earth Exploration Toolbook Chapter: Annotating Change in Satellite Images
This activity of the Earth Exploration Toolbook walks users through a technique for documenting change in before-and-after sets of satellite images. The technique can be used for any set of time-series images that are spatially registered to show the exact same area at the same scale. In the chapter, users examine three Landsat images of the Pearl River delta in southeastern China. In the images, users observe changes in land use over time, then identify and outline areas of new land that were created by dredging sediments from the river bottom. The final product is an annotated image that highlights new land and indicates when it was created.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
  • Graduate / Professional
Type of resource:
  • For the classroom:
    • Computer activity
Subject:
  • Environmental science
  • Geographical Sciences:
    • Human geography
    • Physical geography
  • Technology
Technical requirements:
Java
Cost / Copyright:
No cost
Original, creative works created for the Earth Exploration Toolbook website remain the intellectual property of that program and may be used freely for any non-commercial, educational purpose with appropriate attribution.
DLESE Catalog ID: SERC-EET-000-000-000-003
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • Unifying concepts and processes:
        • Change, constancy, and measurement
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
    • 9-12:
      • Unifying concepts and processes:
        • Change, constancy, and measurement
      • A - Science as inquiry:
        • Abilities necessary to do scientific inquiry
  • National Geography Standards:
    • Environment and society:
      • How human actions modify the physical env.
    • Human systems:
      • The process, patterns, and functions of human settlement
    • Physical systems:
      • The physical processes that shape the patterns of Earth's surface
    • The world in spatial terms:
      • How to use maps and other geographic representations, tools, and technologies to acquire, process, and report information
Related resources:
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Resource contact / Creator / Publisher:
Author: LuAnn Dahlman
TERC - Center for Earth and Space Science Education