Vliv dřevní biomasy na odrazivost smrkového porostu v infra-červené části spektra simulovanou modelem DART ve velmi vysokém prostorovém rozlišení

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67179843%3A_____%2F08%3A00098795" target="_blank" >RIV/67179843:_____/08:00098795 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of woody elements of a Norway spruce canopy on nadir reflectance simulated by the DART model at very high spatial resolution

Popis výsledku v původním jazyce

A sensitivity analysis investigating the effect of woody elements introduced into the Discrete Anisotropic Radiative Transfer (DART) model on the nadir bidirectional reflectance factor (BRF) for a simulated N. spruce canopy was performed at a very high spatial resolution. Three scenarios were studied by modelling the N. spruce canopy as being composed of i) leaves, ii) leaves, trunks and main branches, and finally iii) leaves, trunks, main branches and small twigs. The influence of woody elements was evaluated separately for both, sunlit and shaded parts of the simulated canopy and the simulated nadir BRF was compared with measured AISA Eagle data. The incorporation of small woody parts in DART caused the canopy reflectance to decrease about 4% in thenear-infrared. Finally, we conclude on the importance of including woody elements in radiative transfer and discuss the applicability of the vegetation indices as well as the physically based inversions to retrieve the forest canopy LAI.

Název v anglickém jazyce

Influence of woody elements of a Norway spruce canopy on nadir reflectance simulated by the DART model at very high spatial resolution

Popis výsledku anglicky

A sensitivity analysis investigating the effect of woody elements introduced into the Discrete Anisotropic Radiative Transfer (DART) model on the nadir bidirectional reflectance factor (BRF) for a simulated N. spruce canopy was performed at a very high spatial resolution. Three scenarios were studied by modelling the N. spruce canopy as being composed of i) leaves, ii) leaves, trunks and main branches, and finally iii) leaves, trunks, main branches and small twigs. The influence of woody elements was evaluated separately for both, sunlit and shaded parts of the simulated canopy and the simulated nadir BRF was compared with measured AISA Eagle data. The incorporation of small woody parts in DART caused the canopy reflectance to decrease about 4% in thenear-infrared. Finally, we conclude on the importance of including woody elements in radiative transfer and discuss the applicability of the vegetation indices as well as the physically based inversions to retrieve the forest canopy LAI.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Remote Sensing of Environment

ISSN

0034-4257

e-ISSN

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Svazek periodika

112

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

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EID výsledku v databázi Scopus

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