InVEST 3.7 and 3.3.3 NDR error

Software Support
1

Hi everyone,

I have tried to simulate the NDR model and I got the weird error as the following log in the attached file.

If there any one can help with this?

Best regards,
PheaktraInVEST_Nutrient_Delivery_Ratio_Model.txt (3.7 KB)

2

Thanks for the report, @Pheaktra. If you can share your input data I will try to reproduce this error.

4

Okay @Pheaktra, the problem here is that the landuse raster has a category (202) that does not appear in your biophysical table. If I add another line to that table with 202 in the lucode column, I get past this KeyError. A future version of InVEST will have an even more informative error message in this case.

5

Dear Dave,

Thank you so much. The problem has been solved.

Is there the same equation using for V.3.3.3 and V.3.7?

Thank you so much again, Dave.

Best regards,
Pheaktra

6

Hi Pheaktra, Dave,

I’ve run into a similar problem, but with the error message: “KeyError encountered: lucode 0 is present in the land use raster but not the biophysical table”.

I’ve looked through my land use raster, and I can’t find any NoData values, and there is no lucode = 0. I do have Background data with a pixel value of 1 that I’ve assigned as lucode =1. The model will run without errors when I edit the biophysical table by adding a new LULC type with lucode = 0 and values of 0 for load_n and eff_n. Is this a viable workaround to the error? I’ve attached my log file. Thank you!

InVEST-Nutrient-Delivery-Ratio-Model-(NDR)-log-2021-11-24–14_59_53.txt (11.2 KB)