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jlisic / cdlTools

A set of tools for fetching and using the Cropscape Data Layer in R
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Corn class value 251 ? #7

Closed rtrepos closed 7 months ago

rtrepos commented 6 years ago

Hi, the corn values are : 1 225 226 237 241 251

Nevertheless when looking at the vat.dbf file and selecting these values I have this :

VALUE             CLASS_NAME RED    GREEN BLUE OPACITY        
   1                   Corn  1 0.827451    0       1

225 Dbl Crop WinWht/Corn 1 0.827451 0 1
226 Dbl Crop Oats/Corn 1 0.827451 0 1
237 Dbl Crop Barley/Corn 1 0.827451 0 1
241 Dbl Crop Corn/Soybeans 1 0.827451 0 1 251 0 0.000000 0 1

For VALUE = 251, there is no Corn mentioned, can you tell me why 251 is considered as corn ? Best

jlisic commented 6 years ago

Thanks again, let me take a look tonight. 251 is non-irrigated corn, however it may not be present in all of the vat.dbf files. Is there a particular year/state you are looking at?

rtrepos commented 6 years ago

Yes, I tried only California 2010: CDL_2010_06.tif.vat.dbf