EROS Data Center 1.br.ini. 5/11/95 GLC-2000 North America: Classification and Results Validation Chandra Giri SAIC, EROS Data Center Zhiliang Zhu USGS,

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Presentation transcript:

EROS Data Center 1.br.ini. 5/11/95 GLC-2000 North America: Classification and Results Validation Chandra Giri SAIC, EROS Data Center Zhiliang Zhu USGS, EROS Data Center Presented at the GLC 2000 Final Results Workshop Organized by Joint Research Center, Ispra, Italy from 24-26, March 2003

EROS Data Center 2.br.ini. 5/11/95 GLC-2000 NA Classification Methodology  Combined Modified FGDC Classification and LCCS  Unsupervised Classification  Iterative Labeling  Results Validation

EROS Data Center 3.br.ini. 5/11/95 GLC-2000 NA Results Validation A. Qualitative Assessment B. Quantitative Assessment NA window divided into 3 sub-windows  Canada - Completed  USA - Completed  Mexico, CA, Caribbean – On-going

EROS Data Center 4.br.ini. 5/11/95 USA- Reference Data  National Land Cover Data (NLCD)  Landsat ETM +  Forest Cover Types from National Atlas of the United States  7 land cover classes  Equalized random sampling  Minimum 50 sample points per class Accuracy Assessment

EROS Data Center 5.br.ini. 5/11/95 ForestShrubGrassWetCropUrbanWaterTotalPAUA Forest Shrub Grass Wet Crop Urban Water Total Overall Accuracy = 66.37% Kappa Coefficient = Accuracy Assessment Without Smoothing

EROS Data Center 6.br.ini. 5/11/95 ForestShrubGrassWetCropUrbanWaterTotalPAUA Forest Shrub Grass Wet Crop Urban Water Total Overall Accuracy =68.60% Kappa Coefficient = Accuracy Assessment With Smoothing

EROS Data Center 7.br.ini. 5/11/95 GLC-2000 NA Observations/Experiences  Forest areas better discriminated GLC-2000 IGBP

EROS Data Center 8.br.ini. 5/11/95 > Inclusion of climate/eco-region information helpful

EROS Data Center 9.br.ini. 5/11/95 GLC-2000 NA Observations/Experiences (Contd.)  Combined FGDC & LCCS Classification System useful  Additional field data/secondary data & VEGETATION data may help improve classification results  Regular communication between CCRS and EDC beneficial

EROS Data Center 10.br.ini. 5/11/95 Poster of North America