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USDA National Agricultural Statistics Service, 2023 Texas Cropland Data Layer
STATEWIDE AGRICULTURAL ACCURACY REPORT
Crop-specific covers only *Correct Accuracy Error Kappa
------------------------- ------- -------- ------ -----
FSA Crops 358,862 70.0% 30.0% 0.641
Cover Attribute *Correct Producer's Omission User's Commission Cond'l
Type Code Pixels Accuracy Error Kappa Accuracy Error Kappa
---- ---- ------ -------- ----- ----- -------- ----- -----
Corn 1 67,138 85.3% 14.7% 0.842 88.8% 11.2% 0.879
Cotton 2 130,051 88.6% 11.4% 0.865 81.5% 18.5% 0.785
Rice 3 6,076 86.7% 13.3% 0.867 89.7% 10.3% 0.897
Sorghum 4 48,070 65.0% 35.0% 0.624 68.0% 32.0% 0.655
Soybeans 5 1,624 48.8% 51.2% 0.487 73.4% 26.6% 0.733
Sunflower 6 551 41.4% 58.6% 0.414 73.3% 26.7% 0.732
Peanuts 10 1,016 38.0% 62.0% 0.379 60.0% 40.0% 0.599
Sweet Corn 12 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Barley 21 137 24.5% 75.5% 0.245 57.8% 42.2% 0.578
Spring Wheat 23 559 41.2% 58.8% 0.412 66.7% 33.3% 0.667
Winter Wheat 24 55,979 71.8% 28.2% 0.694 68.9% 31.1% 0.664
Dbl Crop WinWht/Soybeans 26 258 58.8% 41.2% 0.588 63.7% 36.3% 0.637
Rye 27 581 33.6% 66.4% 0.335 53.3% 46.7% 0.532
Oats 28 5,312 54.5% 45.5% 0.542 67.7% 32.3% 0.674
Millet 29 30 9.2% 90.8% 0.092 35.3% 64.7% 0.353
Canola 31 0 0.0% 100.0% 0.000 n/a n/a n/a
Mustard 35 1 25.0% 75.0% 0.250 33.3% 66.7% 0.333
Alfalfa 36 1,237 58.0% 42.0% 0.579 64.3% 35.7% 0.642
Other Hay/Non Alfalfa 37 13,882 47.5% 52.5% 0.464 62.2% 37.8% 0.611
Dry Beans 42 81 35.4% 64.6% 0.354 59.6% 40.4% 0.595
Other Crops 44 2 3.8% 96.2% 0.038 9.5% 90.5% 0.095
Sugarcane 45 691 79.2% 20.8% 0.792 90.9% 9.1% 0.909
Watermelons 48 30 29.1% 70.9% 0.291 60.0% 40.0% 0.600
Onions 49 45 22.8% 77.2% 0.228 42.9% 57.1% 0.428
Cucumbers 50 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Peas 53 230 43.6% 56.4% 0.436 61.0% 39.0% 0.610
Herbs 57 422 36.8% 63.2% 0.368 68.0% 32.0% 0.679
Clover/Wildflowers 58 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Sod/Grass Seed 59 594 53.7% 46.3% 0.537 69.4% 30.6% 0.694
Switchgrass 60 7 43.8% 56.3% 0.437 35.0% 65.0% 0.350
Fallow/Idle Cropland 61 16,568 51.6% 48.4% 0.504 63.5% 36.5% 0.624
Peaches 67 2 11.1% 88.9% 0.111 66.7% 33.3% 0.667
Grapes 69 50 51.5% 48.5% 0.515 64.1% 35.9% 0.641
Citrus 72 15 40.5% 59.5% 0.405 57.7% 42.3% 0.577
Pecans 74 1,344 61.9% 38.1% 0.618 77.8% 22.2% 0.778
Aquaculture 92 298 66.4% 33.6% 0.664 84.9% 15.1% 0.849
Open Water 111 8,706 87.6% 12.4% 0.875 89.6% 10.4% 0.895
Developed/Open Space 121 15,843 97.7% 2.3% 0.976 70.5% 29.5% 0.700
Developed/Low Intensity 122 11,455 99.5% 0.5% 0.995 90.0% 10.0% 0.899
Developed/Med Intensity 123 8,594 100.0% 0.0% 1.000 94.1% 5.9% 0.940
Developed/High Intensity 124 3,483 100.0% 0.0% 1.000 98.3% 1.7% 0.983
Barren 131 836 39.1% 60.9% 0.391 58.8% 41.2% 0.587
Deciduous Forest 141 11,264 56.3% 43.7% 0.555 59.2% 40.8% 0.584
Evergreen Forest 142 31,173 76.6% 23.4% 0.756 72.7% 27.3% 0.716
Mixed Forest 143 5,626 37.8% 62.2% 0.370 43.7% 56.3% 0.429
Shrubland 152 244,785 92.1% 7.9% 0.893 89.2% 10.8% 0.855
Grassland/Pasture 176 95,133 79.6% 20.4% 0.767 73.3% 26.7% 0.699
Woody Wetlands 190 12,680 57.3% 42.7% 0.564 59.5% 40.5% 0.587
Herbaceous Wetlands 195 3,934 54.6% 45.4% 0.543 67.0% 33.0% 0.668
Pistachios 204 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Triticale 205 663 21.9% 78.1% 0.218 42.4% 57.6% 0.423
Carrots 206 4 57.1% 42.9% 0.571 22.2% 77.8% 0.222
Cantaloupes 209 0 n/a n/a n/a 0.0% 100.0% 0.000
Olives 211 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Oranges 212 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Peppers 216 11 30.6% 69.4% 0.306 55.0% 45.0% 0.550
Greens 219 0 0.0% 100.0% 0.000 n/a n/a n/a
Plums 220 0 0.0% 100.0% 0.000 n/a n/a n/a
Strawberries 221 0 0.0% 100.0% 0.000 n/a n/a n/a
Squash 222 0 0.0% 100.0% 0.000 n/a n/a n/a
Vetch 224 0 0.0% 100.0% 0.000 n/a n/a n/a
Dbl Crop WinWht/Corn 225 246 18.8% 81.2% 0.187 44.0% 56.0% 0.439
Dbl Crop Oats/Corn 226 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Dbl Crop Triticale/Corn 228 75 45.5% 54.5% 0.454 80.6% 19.4% 0.806
Pumpkins 229 0 0.0% 100.0% 0.000 n/a n/a n/a
Dbl Crop Barley/Sorghum 235 0 n/a n/a n/a 0.0% 100.0% 0.000
Dbl Crop WinWht/Sorghum 236 2,053 26.4% 73.6% 0.261 50.0% 50.0% 0.496
Dbl Crop Barley/Corn 237 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Dbl Crop WinWht/Cotton 238 3,227 29.5% 70.5% 0.291 54.6% 45.4% 0.541
Dbl Crop Soybeans/Oats 240 0 0.0% 100.0% 0.000 n/a n/a n/a
Blueberries 242 0 0.0% 100.0% 0.000 n/a n/a n/a
Cabbage 243 0 0.0% 100.0% 0.000 0.0% 100.0% 0.000
Turnips 247 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.