CF Technology & Digital Tools 2

Question 1

Which coordinate system is most commonly used in US forestry GIS applications for nationwide datasets?

Accepted Answer

Universal Transverse Mercator (UTM)

Answer

UTM is widely used in US forestry for its meter-based units and minimal distortion across relatively small areas.

Question 2

In remote sensing, what does the term 'spatial resolution' refer to?

Accepted Answer

The smallest ground area represented by a single pixel

Answer

Spatial resolution defines the ground area covered by one pixel, determining how much detail can be distinguished in an image.

Question 3

A forester uses a handheld GPS unit that reports accuracy of ±3 meters. Which application would be MOST affected by this level of accuracy?

Accepted Answer

Precisely marking an individual specimen tree for research

Answer

Individual specimen tree location for research requires sub-meter accuracy, making ±3 m GPS insufficient for that task.

Question 4

What is the primary advantage of using LiDAR over conventional aerial photography for forest inventory?

Accepted Answer

Penetration through canopy to measure ground and tree structure in 3D

Answer

LiDAR pulses penetrate canopy gaps and return multiple echoes, enabling precise 3D measurement of tree heights and terrain beneath.

Question 5

Which software platform is specifically designed for forest growth and yield modeling rather than general GIS analysis?

Accepted Answer

FVS (Forest Vegetation Simulator)

Answer

FVS is the USFS-developed growth and yield modeling system designed specifically for projecting forest stand dynamics over time.

(CF) Certified Forester Exam Practice Test