Wrong quadrats/coordinates in ForestGEO data

[mcgregorian1]

@teixeirak @gonzalezeb

When calculating the local coordinates (lx and ly) for 2013 and 2008, I noticed that I was getting negative values and values >20. The only way this would happen is if either the quadrat for a particular stem is wrong, or the coordinates themselves are wrong.

For example, I have tag 130965 (quadrat 1306) whose lx and ly are 19.2 and -6.8, respectively. Having a negative ly tells me that either the gy is wrong (for quadrat 1306 gy values should be between 100-120; it is listed as 93.2), or the quadrat is wrong (if so, the quadrat should be 1305).

I've checked with @ValentineHerr about this and the 2018 data also has issues.

The issues in 2008 are the same in 2013, and some additions are from 2018. A csv file with the mistakes (and the lx and ly values) can be found here.

• I've put the Rscript in the same folder; I wasn't sure if we wanted to put it in the Rscripts folder since while this is a temp issue, the script outline can be used to double check future ForestGEO datasets.

[gonzalezeb]

Thanks Ian. By doing a quick check it seems that those are mostly quadrat errors. I will check those records and give corrections to Suzanne.

[mcgregorian1]

There are two more issues with tags in the 2018 data:

1. There is a tag 1437923 (all tags should be at max 6 characters). It is a libe in 1403.
2. 93965 is labeled as both qupr and acne (for the acne, its stemtag is NA).

[gonzalezeb]

Both records already checked and sent to eliminate. So you can erase them in the temporal 2018 data.