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Terrestrial laser scanning was conducted in a multi-temporal approach in two consecutive years for the detection of height growth patterns within a single field. The time-of-flight laser scanner was mounted on a tripod. For georeferencing purposes, all eight to nine positions of the laser scanner and several reflective targets were measured by a highly accurate DGPS. The surveys were accomplished three to four times during the growing periods of 2008 (sugar-beet) and 2009 (mainly winter barley). Crop surface models were established for every survey date with a high resolution (0.30 m grid), which can be visualised as maps of plant growth and combined with other data, due to their accurate georeference. In general, the detected spatial variability is consistent with observations from other sensors, e.g. satellite imagery and digital orthophotos as well as manual measurements.
Hoffmeister et al. (Tue,) studied this question.