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USDA National Agricultural Statistics Service, 2023 New York Cropland Data Layer
STATEWIDE AGRICULTURAL ACCURACY REPORT
Crop-specific covers only *Correct Accuracy Error Kappa
------------------------- ------- -------- ------ -----
FSA Crops 351,417 74.6% 25.4% 0.678
Cover Attribute *Correct Producer's Omission User's Commission Cond'l
Type Code Pixels Accuracy Error Kappa Accuracy Error Kappa
---- ---- ------ -------- ----- ----- -------- ----- -----
Corn 1 158,883 89.1% 10.9% 0.867 90.6% 9.4% 0.885
Sorghum 4 267 24.7% 75.3% 0.247 73.0% 27.0% 0.729
Soybeans 5 50,062 83.8% 16.2% 0.828 88.5% 11.5% 0.878
Sunflower 6 8 5.3% 94.7% 0.053 50.0% 50.0% 0.500
Sweet Corn 12 1,164 60.3% 39.7% 0.603 77.4% 22.6% 0.774
Pop or Orn Corn 13 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Barley 21 156 26.5% 73.5% 0.265 70.9% 29.1% 0.709
Spring Wheat 23 14 11.6% 88.4% 0.116 27.5% 72.5% 0.274
Winter Wheat 24 15,866 84.6% 15.4% 0.843 86.5% 13.5% 0.862
Other Small Grains 25 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Dbl Crop WinWht/Soybeans 26 0 0.0% 100.0% 0.000 n/a n/a n/a
Rye 27 304 23.0% 77.0% 0.230 60.7% 39.3% 0.606
Oats 28 1,855 53.0% 47.0% 0.529 73.4% 26.6% 0.733
Millet 29 13 33.3% 66.7% 0.333 39.4% 60.6% 0.394
Speltz 30 3 5.2% 94.8% 0.052 33.3% 66.7% 0.333
Mustard 35 30 76.9% 23.1% 0.769 63.8% 36.2% 0.638
Alfalfa 36 56,547 74.4% 25.6% 0.723 78.0% 22.0% 0.761
Other Hay/Non Alfalfa 37 47,888 61.0% 39.0% 0.580 67.9% 32.1% 0.651
Buckwheat 39 43 18.7% 81.3% 0.187 70.5% 29.5% 0.705
Sugarbeets 41 126 41.3% 58.7% 0.413 69.6% 30.4% 0.696
Dry Beans 42 1,536 50.4% 49.6% 0.502 70.2% 29.8% 0.701
Potatoes 43 1,126 69.7% 30.3% 0.696 90.3% 9.7% 0.903
Other Crops 44 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Misc Vegs & Fruits 47 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Onions 49 633 77.9% 22.1% 0.778 83.5% 16.5% 0.835
Cucumbers 50 70 33.8% 66.2% 0.338 55.6% 44.4% 0.555
Peas 53 851 70.7% 29.3% 0.707 76.3% 23.7% 0.763
Tomatoes 54 0 0.0% 100.0% 0.000 n/a n/a n/a
Hops 56 0 0.0% 100.0% 0.000 n/a n/a n/a
Herbs 57 1 4.5% 95.5% 0.045 12.5% 87.5% 0.125
Clover/Wildflowers 58 558 27.6% 72.4% 0.275 61.3% 38.7% 0.612
Sod/Grass Seed 59 323 69.3% 30.7% 0.693 70.5% 29.5% 0.705
Fallow/Idle Cropland 61 586 21.3% 78.7% 0.212 48.6% 51.4% 0.485
Cherries 66 35 55.6% 44.4% 0.556 68.6% 31.4% 0.686
Peaches 67 8 22.2% 77.8% 0.222 53.3% 46.7% 0.533
Apples 68 1,899 72.9% 27.1% 0.729 81.3% 18.7% 0.812
Grapes 69 8,242 91.2% 8.8% 0.911 95.2% 4.8% 0.952
Christmas Trees 70 26 21.1% 78.9% 0.211 34.2% 65.8% 0.342
Other Tree Crops 71 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Pears 77 3 13.6% 86.4% 0.136 20.0% 80.0% 0.200
Aquaculture 92 0 n/a n/a n/a 0.0% 100.0% 0.000
Open Water 111 17,510 95.0% 5.0% 0.949 94.7% 5.3% 0.946
Developed/Open Space 121 29,449 99.7% 0.3% 0.997 79.8% 20.2% 0.792
Developed/Low Intensity 122 17,804 99.9% 0.1% 0.999 85.8% 14.2% 0.855
Developed/Med Intensity 123 11,895 100.0% 0.0% 1.000 92.9% 7.1% 0.928
Developed/High Intensity 124 6,536 100.0% 0.0% 1.000 99.1% 0.9% 0.991
Barren 131 539 49.1% 50.9% 0.490 61.7% 38.3% 0.617
Deciduous Forest 141 178,515 87.8% 12.2% 0.841 78.3% 21.7% 0.725
Evergreen Forest 142 28,834 64.3% 35.7% 0.626 63.9% 36.1% 0.621
Mixed Forest 143 32,805 52.0% 48.0% 0.492 61.1% 38.9% 0.584
Shrubland 152 147 3.5% 96.5% 0.034 17.3% 82.7% 0.170
Grassland/Pasture 176 39,679 60.2% 39.8% 0.566 49.7% 50.3% 0.460
Woody Wetlands 190 21,467 49.8% 50.2% 0.479 58.1% 41.9% 0.561
Herbaceous Wetlands 195 1,037 22.8% 77.2% 0.226 42.5% 57.5% 0.422
Triticale 205 334 26.0% 74.0% 0.260 62.3% 37.7% 0.623
Carrots 206 48 35.3% 64.7% 0.353 61.5% 38.5% 0.615
Garlic 208 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Broccoli 214 35 44.9% 55.1% 0.449 89.7% 10.3% 0.897
Peppers 216 0 0.0% 100.0% 0.000 n/a n/a n/a
Greens 219 0 0.0% 100.0% 0.000 n/a n/a n/a
Plums 220 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Strawberries 221 0 0.0% 100.0% 0.000 n/a n/a n/a
Squash 222 225 56.3% 43.8% 0.562 71.2% 28.8% 0.712
Dbl Crop WinWht/Corn 225 16 32.0% 68.0% 0.320 32.0% 68.0% 0.320
Lettuce 227 0 0.0% 100.0% 0.000 n/a n/a n/a
Dbl Crop Triticale/Corn 228 789 48.5% 51.5% 0.484 83.3% 16.7% 0.833
Pumpkins 229 49 18.8% 81.2% 0.188 64.5% 35.5% 0.645
Dbl Crop WinWht/Sorghum 236 0 0.0% 100.0% 0.000 n/a n/a n/a
Dbl Crop Barley/Corn 237 0 n/a n/a n/a 0.0% 100.0% 0.000
Dbl Crop Soybeans/Oats 240 2 9.1% 90.9% 0.091 66.7% 33.3% 0.667
Blueberries 242 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Cabbage 243 793 66.2% 33.8% 0.662 90.0% 10.0% 0.900
Cauliflower 244 0 0.0% 100.0% 0.000 n/a n/a n/a
Radishes 246 0 0.0% 100.0% 0.000 n/a n/a n/a
Turnips 247 0 0.0% 100.0% 0.000 n/a n/a n/a
Gourds 249 0 n/a n/a n/a 0.0% 100.0% 0.000
*Correct Pixels represents the total number of independent validation pixels correctly identified in the error matrix.
**The Overall Accuracy represents only the FSA row crops and annual fruit and vegetables (codes 1-61, 66-80, 92 and 200-255).
FSA-sampled grass and pasture. Non-agricultural and NLCD-sampled categories (codes 62-65, 81-91 and 93-199) are not included in the Overall Accuracy.
The accuracy of the non-agricultural land cover classes within the Cropland Data Layer is entirely dependent upon the USGS, National Land Cover Database. Thus, the USDA NASS recommends that users consider the NLCD for studies involving non-agricultural land cover. For more information on the accuracy of the NLCD please reference <https://www.mrlc.gov/>.
Attribute_Accuracy_Value:
Classification accuracy is generally 85% to 95% correct for the major crop-specific land cover categories. See the 'Attribute Accuracy Report' section of this metadata file for the detailed accuracy report.
Attribute_Accuracy_Explanation:
The strength and emphasis of the CDL is crop-specific land cover categories. The accuracy of the CDL non-agricultural land cover classes is entirely dependent upon the USGS, National Land Cover Database. Thus, the USDA NASS recommends that users consider the NLCD for studies involving non-agricultural land cover.
These definitions of accuracy statistics were derived from the following book: Congalton, Russell G. and Kass Green. Assessing the Accuracy of Remotely Sensed Data: Principles and Practices. Boca Raton, Florida: CRC Press, Inc. 1999. The 'Producer's Accuracy' is calculated for each cover type in the ground truth and indicates the probability that a ground truth pixel will be correctly mapped (across all cover types) and measures 'errors of omission'. An 'Omission Error' occurs when a pixel is excluded from the category to which it belongs in the validation dataset. The 'User's Accuracy' indicates the probability that a pixel from the CDL classification actually matches the ground truth data and measures 'errors of commission'. The 'Commission Error' represent when a pixel is included in an incorrect category according to the validation data. It is important to take into consideration errors of omission and commission. For example, if you classify every pixel in a scene to 'wheat', then you have 100% Producer's Accuracy for the wheat category and 0% Omission Error. However, you would also have a very high error of commission as all other crop types would be included in the incorrect category. The 'Kappa' is a measure of agreement based on the difference between the actual agreement in the error matrix (i.e., the agreement between the remotely sensed classification and the reference data as indicated by the major diagonal) and the chance agreement which is indicated by the row and column totals. The 'Conditional Kappa Coefficient' is the agreement for an individual category within the entire error matrix.