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USDA National Agricultural Statistics Service, 2023 New Mexico Cropland Data Layer
STATEWIDE AGRICULTURAL ACCURACY REPORT
Crop-specific covers only *Correct Accuracy Error Kappa
------------------------- ------- -------- ------ -----
FSA Crops 224,243 68.4% 31.6% 0.643
Cover Attribute *Correct Producer's Omission User's Commission Cond'l
Type Code Pixels Accuracy Error Kappa Accuracy Error Kappa
---- ---- ------ -------- ----- ----- -------- ----- -----
Corn 1 23,922 65.5% 34.5% 0.644 74.1% 25.9% 0.731
Cotton 2 9,275 74.6% 25.4% 0.743 78.0% 22.0% 0.778
Sorghum 4 54,549 77.9% 22.1% 0.761 70.6% 29.4% 0.684
Peanuts 10 2,294 60.8% 39.2% 0.607 72.4% 27.6% 0.723
Pop or Orn Corn 13 1,838 79.4% 20.6% 0.794 76.2% 23.8% 0.761
Barley 21 441 79.0% 21.0% 0.790 59.4% 40.6% 0.594
Durum Wheat 22 29 17.0% 83.0% 0.170 67.4% 32.6% 0.674
Spring Wheat 23 49 61.3% 38.8% 0.612 69.0% 31.0% 0.690
Winter Wheat 24 32,277 69.4% 30.6% 0.678 66.7% 33.3% 0.651
Rye 27 444 35.6% 64.4% 0.355 26.9% 73.1% 0.268
Oats 28 655 26.8% 73.2% 0.267 64.4% 35.6% 0.643
Millet 29 229 14.7% 85.3% 0.147 56.0% 44.0% 0.559
Alfalfa 36 28,607 85.9% 14.1% 0.854 84.1% 15.9% 0.835
Other Hay/Non Alfalfa 37 5,603 46.2% 53.8% 0.458 78.1% 21.9% 0.778
Dry Beans 42 2,437 91.3% 8.7% 0.913 87.7% 12.3% 0.877
Potatoes 43 2,375 78.9% 21.1% 0.788 83.0% 17.0% 0.829
Other Crops 44 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Watermelons 48 75 83.3% 16.7% 0.833 97.4% 2.6% 0.974
Onions 49 1,044 57.1% 42.9% 0.570 85.6% 14.4% 0.855
Herbs 57 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Fallow/Idle Cropland 61 30,265 70.1% 29.9% 0.689 75.4% 24.6% 0.743
Cherries 66 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Peaches 67 0 0.0% 100.0% 0.000 n/a n/a n/a
Apples 68 7 14.0% 86.0% 0.140 63.6% 36.4% 0.636
Grapes 69 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Pecans 74 7,080 90.0% 10.0% 0.899 92.3% 7.7% 0.922
Open Water 111 950 79.8% 20.2% 0.798 86.8% 13.2% 0.867
Developed/Open Space 121 4,376 70.4% 29.6% 0.702 51.3% 48.7% 0.510
Developed/Low Intensity 122 2,258 93.1% 6.9% 0.931 80.2% 19.8% 0.802
Developed/Med Intensity 123 1,510 98.6% 1.4% 0.986 93.2% 6.8% 0.931
Developed/High Intensity 124 390 96.3% 3.7% 0.963 95.8% 4.2% 0.958
Barren 131 2,890 81.4% 18.6% 0.813 81.1% 18.9% 0.810
Deciduous Forest 141 1,232 44.3% 55.7% 0.442 55.9% 44.1% 0.558
Evergreen Forest 142 109,655 92.5% 7.5% 0.915 90.3% 9.7% 0.890
Mixed Forest 143 263 31.1% 68.9% 0.311 53.1% 46.9% 0.531
Shrubland 152 441,401 96.1% 3.9% 0.926 93.3% 6.7% 0.876
Grassland/Pasture 176 62,194 83.9% 16.1% 0.827 84.3% 15.7% 0.830
Woody Wetlands 190 572 33.9% 66.1% 0.339 52.4% 47.6% 0.523
Herbaceous Wetlands 195 444 26.6% 73.4% 0.265 37.9% 62.1% 0.378
Pistachios 204 16 32.0% 68.0% 0.320 100.0% 0.0% 1.000
Triticale 205 4,229 36.7% 63.3% 0.362 57.4% 42.6% 0.569
Peppers 216 728 54.5% 45.5% 0.544 68.6% 31.4% 0.686
Nectarines 218 0 0.0% 100.0% 0.000 n/a n/a n/a
Dbl Crop WinWht/Corn 225 3,551 62.0% 38.0% 0.618 66.8% 33.2% 0.666
Dbl Crop Oats/Corn 226 0 n/a n/a n/a 0.0% 100.0% 0.000
Lettuce 227 21 70.0% 30.0% 0.700 19.1% 80.9% 0.191
Dbl Crop Triticale/Corn 228 1,113 32.4% 67.6% 0.323 57.8% 42.2% 0.577
Pumpkins 229 547 49.0% 51.0% 0.490 96.0% 4.0% 0.960
Dbl Crop WinWht/Sorghum 236 8,253 50.7% 49.3% 0.500 65.1% 34.9% 0.646
Dbl Crop Barley/Corn 237 2,289 83.2% 16.8% 0.831 67.9% 32.1% 0.678
Dbl Crop WinWht/Cotton 238 1 0.1% 99.9% 0.001 0.5% 99.5% 0.004
Cabbage 243 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.