Skip to main content

Standard Errors of Area Estimates Obtained by Traversing and GPS

The full text article is temporarily unavailable.

We apologise for the inconvenience. Please try again later.

In this article, the problem of determining standard errors of area estimates obtained by traversing is addressed. In traversing, a surveyor moves along the boundary of a compartment and makes measurements at certain base points to determine their coordinates. Two cases of traversing are described: the case when coordinates are determined directly using GPS equipment and the case when distances and directions are measured from every base point to the next. It is shown that the problem of determining standard errors of the area estimates is different for the two cases. Formulas are derived from basic assumptions about the measurement errors. The efficiency of the two approaches is compared. It is found that the standard errors for the two methods often are of a similar magnitude but that the size and the shape of a compartment affect what method should be preferred. For. Sci. 44(3):405-413.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: Compartment polygon; adjustment for closure error; variance formulas for area estimate

Document Type: Journal Article

Affiliations: Senior Lecturer at the Department of Forest Resource Management and Geomatics, Swedish University of Agricultural Sciences, S-90183, Umeå, Sweden--Phone: 46-90-7865908;, Fax: 46-90-778116

Publication date: 01 August 1998

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more