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    Author(s): Ronald E. McRoberts
    Date: 2001
    Source: Forest Science. Vol. 47 no. 3.:p. 322-330. (2001)
    Publication Series: Scientific Journal (JRNL)
    Station: North Central Research Station
    PDF: Download Publication  (1.7 MB)


    The USDA Forest Service is developing an annual inventory system to establish the capability of producing annual estimates of timber volume and related variables. The inventory system features measurement of an annual sample of field plots with options for updating data for plots measured in previous years. One imputation and two model-based updating techniques are described and evaluated with respect to the bias and precision of their annual estimates of basal area per unit area. The evaluations indicate that simple plot-level imputation and model-based updating techniques produce adequately unbiased and precise estimates of annual mean basal area per unit area for large areas.

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    McRoberts, Ronald E. 2001. Imputatoin and Model-Based Updating Technique for Annual Forest Inventories. Forest Science. Vol. 47 no. 3.:p. 322-330. (2001)


    Growth models, remote sensing, simulation

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