Coastal Blue Carbon - negative carbon stocks?

I am assessing change in carbon in mangroves between two timepoints 1985 and 2015. The model seems to run fine. However when I look at the carbon stock raster for 2015 I see some negative values. Is that possible? The 1985 carbon stock raster does not have negative values.

Thanks

Matt

Hi @mreiter, Very interesting! It does sound unexpected. How negative are the values? And could you upload your logfile so we can take a look?

Thanks,
James