Q uick and accurate tree height measurement has always been a goal of foresters. The techniques and technology to measure height were developed long ago—even the earliest textbooks on mensuration showcased hypsometers (e.g., Schlich 1895, Mlodziansky 1898, Schenck 1905, Graves 1906), and approaches to refine these sometimes remarkable tools appeared in the first issues of Forestry Quarterly, Pr...

Most hypsometers apply a mathematical technique that utilizes the tangent of angles and a horizontal distance to deliver the exact height of a tree under idealized circumstances. Unfortunately, these conditions are rarely met for hardwoods in the field. “new” predictor based on sine and slope distance and discussed here does not require the same assumptions for accurate height determination. Ca...

Tree height is a fundamental measurement in forest inventory studies and critical variable for the assessment of tree biomass, carbon stock site productivity. However, measuring often challenging task may generate errors. This study provides an accuracy analysis heights measured through different methods ranging from traditional techniques (thumb rule stick method) to trigonometric equipment (c...

Forest inventories play an important role in enabling informed decisions to be made for the management and conservation of forest resources; however, process collecting inventory information is laborious. Despite advancements mapping technologies allowing forests digitized finer granularity than ever before, it still common measurements collected using simple tools such as calipers, measuring t...