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    Author(s): Frank Barrett; Ronald E. McRoberts; Erkki Tomppo; Emil Cienciala; Lars T. Waser
    Date: 2016
    Source: Remote Sensing of Environment
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: View PDF  (2.0 MB)

    Description

    We report on the operational use of remotely sensed data by national forest inventory (NFI) programmes in 45 countries representing approximately 65% of theworld's forest area. The analysis is based on responses to a questionnaire prepared under the auspices of COST Action FP1001 "Improving Data and Information on the Potential Supply of Wood Resources: A European Approach from Multisource National Forest Inventories (USEWOOD)". Responses were received from NFI remote sensing experts from both European and non-European countries. Three major conclusions were drawn from the study: (1) remote sensing now plays an essential role in many NFI programmes and provides data that can be used to enhance estimates for themost meaningful and commonly reported forest resource parameters; (2) a wide spectrum of remote sensing methods are currently used by NFI teams; and (3) although substantial effort and attention has been focused on the use of aerial photography and spaceborne sensor data for mapping and enhancing estimation, integration of uncertainly estimation requires additional attention. The operational use of remotely sensed data byNFI programmes is illustrated for three case studies: a case study for Switzerland focuses on digital aerial photography, a case study for Finland focuses on spaceborne sensor data for small area estimation, and a case study for the USA focuses on spaceborne sensor data for increasing the precision of large area estimates. Although use of remotely sensed data by NFI programmesmay remain region-specific and some approaches are not readily transferable, generally applicable good practice guidelines were formulated on the basis of the questionnaire responses and the case studies. These guidelines are intended to promote better use of limited financial resources and to increase the accuracy and precision of NFI estimates

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    Citation

    Barrett, Frank; McRoberts, Ronald E.; Tomppo, Erkki; Cienciala, Emil; Waser, Lars T. 2016. A questionnaire-based review of the operational use of remotely sensed data by national forest inventories. Remote Sensing of Environment. 174: 279-289. https://doi.org/10.1016/j.rse.2015.08.029.

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    Keywords

    COST action FP1001, Case studies, Satellite imagery, Spaceborne data, Aerial photography

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