TH4.L09 - INTEGRATION OF RADARSAT-2, TERRASAR-X and ALOS PALSAR DATA FOR IN-SEASON CROP ACREAGE ESTIMATES: A CANADIAN EXAMPLE

Jiali Shang, Heather McNairn, Xianfeng Jiao, Catherine Champagne Agriculture and Agri-Food Canada, Ottawa, Canada 960 Carling Avenue, Ottawa, Canada, K1A 0C6 [email_address] Integration of RADARSAT-2, TerraSAR-X & ALOS PALSAR for In-Season Crop Acreage Estimates: A Canadian Example

Monitoring Agriculture in Canada ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

AAFC Pilot Studies: method development for an operational crop inventory (2004-2008) ,[object Object],[object Object],[object Object],[object Object],Swift Current Winnipeg

[object Object],[object Object],Crop Inventory using multi-frequency SAR

Radar-based Crop Classification ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

X- & C-Band Classification Results: Casselman 2008 Comparison of single-date RADARSAT-2 and TerraSAR-X crop classification accuracies over Casselman, Ontario ,[object Object],[object Object],Sensors Frequency Polarization Used for Comparison Date Pasture/ Forage Soybean Corn Wheat Overall Accuracy TSX X-band VV/VH July 16 69.1 58.2 48.0 85.2 59.9 RSAT-2 C-band VV/VH July 19 47.1 64.7 50.7 42.8 54.2 TSX X-band VV/VH Aug 9 59.1 79.4 71.0 61.8 71.0 RSAT-2 C-band VV/VH Aug 10 39.6 73.8 56.2 36.8 57.4

Casselman 2008 Crop Map Water Urban Shrubland Wetland Hay-Pasture Soybean Corn Cereal Buckwheat Coniferous Roads Barren Legend Broadleaf 0 2 4 km Classification using 3-date SPOT Classification using 6-date TerraSAR-X

X- & C-Band Integration: Casselman 2008 ,[object Object],[object Object]

C- and X-Band Results: Casselman 2009 User’s Accuracies RADARSAT-2 TerraSAR-X Pasture/Forage Corn Soybean Cereal Potato Overall Before July 8 38.7 76.6 73.9 63.4 70.0 71.9 Before July 8 Before June 25 41.2 81.2 81.3 75.4 73.9 78.2 Before Aug 7 39.9 84.7 76.7 75.6 93.7 77.9 All (10 dates) 41.5 96.1 83.7 79.6 90.6 85.6

L-, C- & X-Band Classification Results: Carman 2009 ,[object Object],[object Object],[object Object],User’s Accuracies ALOS RS2 Tsx Canola Flaxseed Beans (Soy and Dry) Corn Cereal Overall All (10) 93.4 87.4 88.4 78.3 95.1 89.4 11 Aug 9 Aug 15 Aug 94.1 73.6 88.0 83.5 93.1 89.4 All All All 95.3 91.6 92.2 83.7 92.7 91.4

Crop Map Generated Using All Multi-Frequency SAR Images Carman 2009 (91.4% overall accuracy) Water Urban Shrub land Wetland Hay-Pasture Soybean Corn Cereal Coniferous Roads Barren Legend Broadleaf Canola Soybean Sunflower Flaxseed Fallow Potato Field peas Beans N 0 3 6 km

Polarimetric SAR for Crop Classification RADARSAT-2 (June 15, July 6, August 9, September 2): Casselman 2008 RADARSAT-2 (May 29, June 22, July 16, August 9, September 2): Carman 2009 Pasture Soy Corn Wheat Overall Cloude-Pottier 77.5 85.2 86.4 97.6 85.8 Freeman-Durden 85.1 93.7 89.9 93.3 90.9 Linear Polarizations (HH, HV, VV, VH) 60.4 81.8 73.6 83.8 75.4 Canola Flax Beans Corn Cereals Overall Cloude-Pottier 91.9 57.4 76.5 68.6 82.8 79.8 Freeman-Durden 94.1 81.0 80.1 69.2 88.8 83.6 Linear Polarizations (HH, HV, VV, VH) 83.1 51.3 73.7 53.5 89.4 75.5

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Conclusions

Acknowledgements ,[object Object],[object Object],[object Object],[object Object],[object Object]

TH4.L09 - INTEGRATION OF RADARSAT-2, TERRASAR-X and ALOS PALSAR DATA FOR IN-SEASON CROP ACREAGE ESTIMATES: A CANADIAN EXAMPLE

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TH4.L09 - INTEGRATION OF RADARSAT-2, TERRASAR-X and ALOS PALSAR DATA FOR IN-SEASON CROP ACREAGE ESTIMATES: A CANADIAN EXAMPLE

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