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Land Use and Land Cover Change

Land Use and Land Cover Change

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Land Use and Land Cover Change

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  1. Land Use and Land Cover Change Isaac Gerg

  2. Land Cover & Usage • Timeline • History • Playing Field • Visible • Multispectral • Hyperspectral • SAR

  3. 2008 2004 2003 2002 2001 2000 2013 - VIIRS 2011 - EnMap 2009 – TanDEM-X 2008 - GeoEye-1 2008 - ARTEMIS 2007 - Worldview-1 2007 – TerraSAR-X 2007 – RADARSAT-2 2006 – PALSAR 2006 - Kompsat-2 2004 - FORMOSAT-2 2003 – Orbview 3 2003 – LISS-3 2002 - NEMO 2002 – MERIS 2002 - ASAR 2001 – Quickbird 2001 – Orbview-4 2001 – CHRIS 2000 – Hyperion 2000 – ALI 1999 – MODIS 1999 – MISR 1999 – Landsat-7 1999 – Kompsat-1 1999 – Ikonos 1999 – ASTER 1997 – Orbview 2 1995 – RADARSAT-1 1995 – ATSR 1994 – SIR-C/X-SAR 1992 – JERS-1 1991 – AMI 1987 – Seasat 1986 – SPOT 1978 – AVHRR 1972 – Landsat 1 1990 1980 1970 1860 1870 1880 1890 1900 1910 1920 1930 1940

  4. History 1858: First aerial pictures by French photographer and balloonist Nada over Paris, France. 1959: Explorer 6 takes first satellite image of earth. 1972: Birth of Landsat and birth of spaceborne MSI. 1972: Blue Marble from Apollo 17. 1977: KH-11 series satellites give first near real-time imagery. 2007: Worldview-1 has current lowest commercial GSD @ 0.5m for a satellite.

  5. The Playing Field (μm) Sample HSI Sample MSI

  6. Visible Wavelength Sensors

  7. Houston, TX 10/07 via Worldview-1

  8. Houston, TX 10/07 via Worldview-1

  9. Utility of MSI • NDVI • Crop growth stage • Fire detection • Surface Temperature • Landcover usage (NLCD) • Deforestation monitoring • Mineral mapping • Soil Brightness Index (SBI) • Green Vegetation Index (GVI)

  10. Multispectral Sensors

  11. Land Cover Classification

  12. MODIS Fire Map

  13. MODIS NDVI

  14. Landsat Program • Sats launched 1972-1999 • 7 satellites (Landsat 6 failed to reach orbit) • Only 5 and 7 still functioning • Multispectral (MSS) on Landsat 1-5 • Thematic Mapper (TM) sensor on Landsat 4 & 5 • 0.45 um – 2.35um + thermal band (10.4-12.5) • Enhanced Thematic Mapper (ETM+) on Landsat 7 • Landsat 1: 18 day revisit, RBV, MSS • Landsat 2: 18 day revisit, RBV, MSS • Landsat 3: 18 day revisit, RBV, MSS, first with thermal band • Landsat 4: 16 day revisit, TM, MSS, 30m max resolution • Landsat 5: TM, MSS, 16 day revisit, provide global archive of satellite photos, TM • Landsat 7 (ETM+, 16 day revisit, 15m resolution panchromatic, 60m thermal resolution, Current, cloud free imagery) • ETM+ has 8 bands including thermal

  15. Utility of HSI • Material abundance maps (MAMs) • Subpixel detection • Automatic target recognition (ATR) • Crop health • Crop type

  16. Hyperspectral Sensors

  17. Mineral Maps of Cuprite, NV

  18. MAM from Moffett Field, CA

  19. Utility of SAR • Polarization • All weather • DEM • Urban density • Soil moisture • Crop type

  20. SAR Sensors

  21. SIR-C/X-SAR SAR Examples

  22. Questions?

  23. References • See slide notes.