The authors use the phrase "ground "Truth" with a capital "TM (line 50) in
order to
argue that field measurements should be given up in
order to focus exclusively on LIDAR measurements.
illustrate the impossibility of ever gaining accurate
and usable measurements from either fieldwork or
LIDAR.
defend the idea that LIDAR measurements are
inherently more accurate than measurements
obtained via fieldwork.
note the excessive faith scientists have put in the
accuracy of field-survey estimates.