Error Error Forest Measurement and Modelling. Why measure Nothing in the natural world can be measured without some error . However, this should not be a problem unless the user of the measurements denies or ignores the error. The universal nature of measurement error means that measurements should not be quoted as an exact value - they should instead indicate a range within which the true value lies.
Errors can arise from many sources.
The tolerable amount of error must be considered by person who is in charge of quantifying the forest as well as the person who will use the information. A clear understanding of the acceptable level of error will enable appropriate measurement methods to be selected. Measurement resources can be more efficiently allocated to reducing the dominant sources of error. These errors are caused by human carelessness, casualness or fallibility. Mistakes can include the incorrect use of an instrument, an error in recording or a calculation error.