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Vegetation Continuous Fields

Vegetation Continuous Fields. Evolution through multiple spatial and temporal resolutions. John R. Townshend 1 , Charlene M. DiMiceli 1 , Robert Sohlberg 1 , Mark Carroll 2 , Do- Hyung Kim 1.

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Vegetation Continuous Fields

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  1. Vegetation Continuous Fields Evolution through multiple spatial and temporal resolutions John R. Townshend1, Charlene M. DiMiceli1, Robert Sohlberg1, Mark Carroll2, Do-Hyung Kim1 1 University of Maryland, Department of Geographical Sciences, 2 Sigma Space, NASA Goddard Space Flight Center

  2. AVHRR VCF Rondonia , Brazil 1 km resolution * Mixture model algorithm

  3. MODIS VCF C3 Rondonia , Brazil 500 m resolution * Regression tree algorithm Increased training

  4. MODIS VCF C5 Rondonia , Brazil 250 m resolution * Bagged regression tree algorithm Increased training * Annual * Fully automated

  5. WaterMask MODIS C5 * 250 m resolution

  6. Landsat VCF Rondonia , Brazil 30 m resolution * Regression tree algorithm Training—MODIS VCF and high resolution data

  7. MEaSURES VCF 1982 - 2010 Rondonia, Brazil 30 year time series * Bagged regression tree algorithm Expanded training * 1/20 degree resolution 1982 1990 1998 2010

  8. Vegetation Continuous Fields Products -- History * * ** * http://www.landcover.org , ** http://earthenginepartners.appspot.com/science-2013-global-forest

  9. Forest DisturbanceXiaopeng Song, 2014 Disturbance Year

  10. Why do we need both VCF and LAI products?

  11. LAI and VCF VCF Non-tree Vegetation MOD44B--2010 Maximum Annual LAI MOD15A2--2010 VCF Tree Cover MOD44B--2010

  12. VCF vs LAI 1 km USDA Farm Service Agency, Northern Michigan

  13. VCF vs LAI 1 km USDA Farm Service Agency, Northern Michigan

  14. VCF vs LAI 1 km USDA Farm Service Agency, Northern Michigan

  15. Future Plans • Further additions to training to improve difficult regions • Improved data mining models—Random Forest, Gradient Boosting • Testing on C6 data • Analysis of improvements with BRDF-corrected data • VIIRS • Updated error and uncertainty analysis

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