read_comparable_areas giving 522 AMCs

[gabriel-berga]

Hello there,

When I use the read_comparable_areas(start_year=1872, end_year = 2010) function the database has 522 AMCs, while Ehrl creates 482 AMCS using the same period. I'm not sure if I'm making some mistake, or if there is some problem with this function in the package.

Regards,

[rafapereirabr]

@PedroJorge7 , could you please have a look at this issue?

[fbrustolin-fep]

Today, just comparing the number of AMCs, I found:

• read_comparable_areas(start_year=1872, end_year = 2010): 522 x 482 (Ehrl) AMCs
• read_comparable_areas(start_year=1920, end_year = 2010): 1043 x 1030 (Ehrl) AMCs
• read_comparable_areas(start_year=1970, end_year = 2010): 3800 x 3800 (Ehrl) AMCs
• read_comparable_areas(start_year=1991, end_year = 2010): 4298 x 4298 (Ehrl) AMCs
• read_comparable_areas(start_year=2000, end_year = 2010): 5476 x 5474 (Ehrl) AMCs

Regards,

[PedroJorge7]

Hello @fbrustolin-fep ,

I apologize for the delayed response. During this period, we have been conducting various tests and adjustments in search of differences between the AMCs in our code and the output from Ehrl.

We have finally found a result that is more consistent and aligned with what was observed with Ehrl (We will be uploading these adjustments soon). Following your example:

• read_comparable_areas(start_year=1872, end_year = 2010): 482x 482 (Ehrl) AMCs
• read_comparable_areas(start_year=1920, end_year = 2010): 1029 x 1030 (Ehrl) AMCs
• read_comparable_areas(start_year=1970, end_year = 2010): 3799 x 3800 (Ehrl) AMCs
• read_comparable_areas(start_year=1991, end_year = 2010): 4298 x 4298 (Ehrl) AMCs
• read_comparable_areas(start_year=2000, end_year = 2010): 5476 x 5476 (Ehrl) AMCs

Note that there is a difference of one AMC between 1920-2010 and 1970-2010. However, it seems that our code is functioning correctly. This AMC difference is caused by Mossoró that in Ehrl code, does not share the same AMC as Serra do Mel, but in the original file, it appears to do. So, they should be considered a single AMC.

Attached are some screenshots from our comparative analysis:

[fbrustolin-fep]

Thank you so much, @PedroJorge7 !

[rafapereirabr]

We will be doing some major changes to this data set and function. For now, this function is temporarily suspended.