Timber age verification using historical satellite image analysis

Joon Heo, Jong Hong Kim, Ji Sang Park, Hong Gyoo Sohn

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Timber inventory data is important for estimating the net present value (NPV) of timberland sales among paper companies, timber investment and management organizations (TIMO), institutional investors, and individual investors. Timber age in an inventory GIS database can be quickly verified through a series of historical satellite image analyses based on image differencing techniques. The normalized difference vegetation index (NDVI), tassel-cap greenness, wetness, simple differencing of band 5, and a vegetation conditions index were used collectively as an individual change detection index, and simple averaging was employed in the integration of individual results. With respect to timberlands of more than 200,000 acres in the states of Washington and Oregon, harvest years from satellite image analysis and timber ages in the inventory GIS database were compared, and the areas of age mismatch were summarized for field verification. This practice is not a complete solution for inventory verification, but it can reduce significant time in on-site verification by effectively offering a list of potential age-discrepancy tracts. With the support of fieldwork confirmation, the proposed practice can be a very effective and efficient means of practicing due diligence for timberlands in the forestry industry.

Original languageEnglish
Pages (from-to)315-323
Number of pages9
JournalForest Ecology and Management
Volume236
Issue number2-3
DOIs
Publication statusPublished - 2006 Dec 1

Fingerprint

image analysis
timber
woodlands
GIS
forest industries
NDVI
sales
fieldwork
forestry
inflorescences
vegetation
satellite image
industry
index
methodology

All Science Journal Classification (ASJC) codes

  • Forestry
  • Nature and Landscape Conservation
  • Management, Monitoring, Policy and Law

Cite this

Heo, Joon ; Kim, Jong Hong ; Park, Ji Sang ; Sohn, Hong Gyoo. / Timber age verification using historical satellite image analysis. In: Forest Ecology and Management. 2006 ; Vol. 236, No. 2-3. pp. 315-323.
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Timber age verification using historical satellite image analysis. / Heo, Joon; Kim, Jong Hong; Park, Ji Sang; Sohn, Hong Gyoo.

In: Forest Ecology and Management, Vol. 236, No. 2-3, 01.12.2006, p. 315-323.

Research output: Contribution to journalArticle

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