A CHECK ON THE ACCURACY OF TREE HEIGHTS TAKEN FROM AERIAL PHOTOGRAPHS | Zendy

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A CHECK ON THE ACCURACY OF TREE HEIGHTS TAKEN FROM AERIAL PHOTOGRAPHS

Author(s) -

James R. Collins

Publication year - 1957

Publication title -

the forestry chronicle

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.335

H-Index - 49

eISSN - 1499-9315

pISSN - 0015-7546

DOI - 10.5558/tfc33168-2

Subject(s) - parallax , tree (set theory) , aerial photos , aerial survey , bar (unit) , spring (device) , reliability (semiconductor) , geodesy , geography , remote sensing , statistics , environmental science , forestry , mathematics , geology , meteorology , computer science , computer vision , engineering , physics , combinatorics , power (physics) , quantum mechanics , mechanical engineering

In the Spring of 1956, some forty tree heights were measured by parallax bar from aerial photographs and checked against ground measurements.The standard error of individual height estimates for all trees was ± 6.1 feet, and for dominant trees was ± 5.1 feet.Estimates of maximum height for site classification can be made with excellent reliability by this method.

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