optical • lidar...6/9/2010 23: 19 utc (radar intensity imagery) 150030'o"e 50 151 00'0" e 1...

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  • School of Civil & Environmental Engineering

    • Optical

    • Radar

    • LiDAR

    • Rapid change

    • Large scale

    • Rough terrain

    • Persistent cloud cover

    • 2D to 3D

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  • School of Civil & Environmental Engineering

    Landsat program

    • Landsat-1: July 23, 1972

    – Revisit: 16 days

    • Landsat-8: February 11, 2013

    – Pixel size: 15m /30m /100m

    – Swath: 185 km

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  • School of Civil & Environmental Engineering

    Open Availability of Landsat Data

    • 2008: USGS opens Landsat archive at no charge over Internet;

    • Free data results in explosive data-distribution growth

    • Daily average of scenes jumps from 53 per day to 5776 per day

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  • School of Civil & Environmental Engineering

    5

  • Landsat: NSW

  • Radar

    Optical

  • School of Civil & Environmental Engineering

    Google Maps – Guiyang, southwest China

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  • School of Civil & Environmental Engineering

    Optical

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  • School of Civil & Environmental Engineering

    Radar

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  • School of Civil & Environmental Engineering

    Ground

    displacement

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  • School of Civil & Environmental Engineering

    Landsat: Guiyang in 1995

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  • School of Civil & Environmental Engineering

    Landsat: Guiyang in 2013

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  • School of Civil & Environmental Engineering

    Our goals … more open satellite data … NISAR

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