Podrobnosti záznamu

Název
    Utilization of hyperspectral image optical indices to assess the Norway spruce forest health status
Autor
    Albrechtová, Jana
    Entcheva-Campbell, Petya
    Hanuš, Jan
    Kopačková, Veronika
    Lhotáková, Zuzana
    Mišurec, Jan
    Weyermann, Jörg
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Applied Remote Sensing
Svazek/č.
    Roč. 6, č. June
Strany
    25
Rok
    2012
Výraz tezauru
    chlorophyll,optical indices,Norway spruce,continuum removal,HyMap,actual physiological status,Sokolov basin,forest management
Klíčové slovo
    Assess
    Forest
    Health
    Hyperspectral
    Image
    Indices
    Norway
    Optical
    Spruce
    Status
    Utilization
Abstrakt (anglicky)
   The work is concerned with assessing the health status of trees of the Norway spruce species using airborne hyperspectral (HS) data (HyMap). The study was conducted in the Sokolov basin in the western part of the Czech Republic. First, statistics were employed to assess and validate diverse empirical models based on spectral information using the ground truth data (biochemically determined chlorophyll content). The model attaining the greatest accuracy (D718/D704:RMSE 1/4 0.2055 mg/g, R2 1/4 0.9370) was selected to produce a map of foliar chlorophyll concentrations (Cab). The Cab values retrieved from the HS data were tested together with other nonquantitative vegetation indicators derived from the HyMap image reflectance to create a statistical method allowing assessment of the condition of Norway spruce. As a result, we integrated the following HyMap derived parameters (Cab, REP, and SIPI) to assess the subtle changes in physiological status of the macroscopically undamaged folia
   ge of Norway spruce within the four studied test sites.
Přispěvatel
    Česká geologická služba
Kód přispěvatele
    ČGS (RIV)
Zdrojový formát
    R
Datum importu
    15. 10. 2014