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U.S. Geological Survey U.S. Department of Interior GFSAD30m Global Cropland Extent Products of Nominal 250 m (GCE V2.0) Updates Pardhasaradhi.

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Presentation on theme: "U.S. Geological Survey U.S. Department of Interior GFSAD30m Global Cropland Extent Products of Nominal 250 m (GCE V2.0) Updates Pardhasaradhi."— Presentation transcript:

1 U.S. Geological Survey U.S. Department of Interior GFSAD30m Global Cropland Extent Products of Australia @ Nominal 250 m (GCE V2.0) Updates Pardhasaradhi Teluguntla and Prasad Thenkabail 23 rd April, 2015

2 GFSAD 250m Cropland Products of Australia Automated Cropland Classification Algorithm (ACCA) U.S. Geological Survey U.S. Department of Interior  Based on Ideal spectral signatures, developed Automated Cropland Classification Algorithm (ACCA) for each of 3 cropland masks of Australia.  Validated ACCA-2014 results with SMT-2014 results  Applied ACCA year to year (2000-2014) to study cropland change dynamics over 15 years

3 U.S. Geological Survey U.S. Department of Interior Spatial distribution of ACCA derived cropland classes (2000-2014) 2000 2001 2002 2003 2004 2005 2006 2007 20082009 2010 2011 2012 2013 2014

4 U.S. Geological Survey U.S. Department of Interior Class distribution of ACCA derived classes (2000-2014)

5 U.S. Geological Survey U.S. Department of Interior Comparison of areas of ACCA derived classes with Rainfall and FAO statistics ( 2000-2014) Changes in cropland fallow areas during drought and good years

6 U.S. Geological Survey U.S. Department of Interior Comparison of areas of ACCA derived classes with Rainfall and FAO statistics ( 2000-2014) Trend of (croplands + pastures)

7 U.S. Geological Survey U.S. Department of Interior Comparison of NDVI mean signature of rainfed cropland class during drought and good years

8 U.S. Geological Survey U.S. Department of Interior Work in Progress: Cropland change dynamics (2000-2014)  Sub pixel area calculations  Accuracy assessment with Other available sources

9 U.S. Geological Survey U.S. Department of Interior


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