February 19, 2015

Mapping croplands using Landsat data with generalized classifier over large

areas

Aparna Phalke and Prof. Mutlu Ozdogan

Nelson Institute for Environmental Studies University of Wisconsin - Madison

Updates on following

• Agro-Ecozone selection in the study area

• LDA at new Ag-eco zone level

• Data hunting

Ag-eco zones (AEZ) in the study area• According FAO-GAEZ layer of ‘Reference length of growing period’, total 16 classes fall in the study area

• These 16 classes are aggregated to get 8 classes as follows:

AEZNew zone

0 11,2,3 24,5 36,7 48,9 5

10,11,12 613,14 715,16 8

AEZ in study area

LDA at Agro-eco zone(AEZ) level

AEZ

Total train

segments

Accuracy Mean Sd Max Min Var Range Count Slope Elevation

Cutoffpoints

2 571 82.77 4.35E-05

-0.0024

5

-0.0001

1

-0.0006

4

6.7E-07

-6.1E-05

-0.0187

2

0.195119

0.000131

-2.36094

175

3 1132 79.82 0.000834

-0.0020

6

-0.0001

7

-0.0004

4

6.54E-08

4.58E-05

0.010998

0.091114

0.000513

-0.04518

408

4 3249 77.82 0.000875

-0.0016

5

-9.3E-05

-0.0001

6

1.63E-07

1.73E-05

0.008848

0.13485

0.000381

1.232608342

5 2367 73.39 0.000569

-0.0023

6

-7.5E-05

-0.0001

6

2.47E-07

4E-05 0.032605

0.099964

0.000154

0.187639618

6 1028 69.46 0.000557

-0.0016

9

-0.0003

3

-0.0004

9

1.39E-07

6.05E-06

-0.0248

9

0.132037

-0.0020

9

-2.93747

637

7 116 67.76 0.000658

-0.0022

8

-9.4E-05

-0.0003

4

2.6E-07

0.00011

-0.0769

9

0.209877

-0.0020

7

-0.91685

513

Data hunting• Cropland maps from Polish Government by field survey

• Statistical data of Poland (by Polish Government)

(http://stat.gov.pl/bdlen/app/dane_podgrup.hier?p_id=383354&p_token=-1450257223)

• CORINE 30 m • MARS data

Map by Polish Government

Statistical data

Thank you

phalke@wisc.edu