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Retrieval and valid...
Retrieval and validation of forest background reflectivity from daily Moderate Resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution function (BRDF) data across European forests
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- Pisek, Jan (author)
- University of Tartu
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- Erb, Angela (author)
- University of Massachusetts
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- Korhonen, Lauri (author)
- University of Eastern Finland
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- Biermann, Tobias (author)
- Lund University,Lunds universitet,ICOS Sweden,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Carrara, Arnaud (author)
- Fundacion Centro de Estudios Ambientales del Mediterraneo (CEAM)
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- Cremonese, Edoardo (author)
- Environmental Protection Agency of Aosta Valley
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- Cuntz, Matthias (author)
- University of Lorraine
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- Fares, Silvano (author)
- CNR: National Research Council of Italy
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- Gerosa, Giacomo (author)
- Catholic University of the Sacred Heart, Brescia
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- Grünwald, Thomas (author)
- Dresden University of Technology
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- Hase, Niklas (author)
- Helmholtz Centre for Environmental Research (UFZ)
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- Heliasz, Michal (author)
- Lund University,Lunds universitet,ICOS Sweden,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Ibrom, Andreas (author)
- Technical University of Denmark
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- Knohl, Alexander (author)
- University of Göttingen
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- Kobler, Johannes (author)
- Austrian Federal Environmental Agency
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- Kruijt, Bart (author)
- Wageningen University
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- Lange, Holger (author)
- Norwegian Institute of Bioeconomy Research (Nibio)
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- Leppänen, Leena (author)
- Finnish Meteorological Institute
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- Limousin, Jean-Marc (author)
- Paul Valéry University of Montpellier,University of Montpellier
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- Ramon Lopez Serrano, Francisco (author)
- University of Castilla La Mancha
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- Loustau, Denis (author)
- Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE)
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- Lukeš, Petr (author)
- Global Change Research Centre of the Czech Academy of Sciences
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- Lundin, Lars (author)
- Swedish University of Agricultural Sciences
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- Marzuoli, Riccardo (author)
- Catholic University of the Sacred Heart, Brescia
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- Mölder, Meelis (author)
- Lund University,Lunds universitet,ICOS Sweden,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Institutionen för naturgeografi och ekosystemvetenskap,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science
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- Montagnani, Leonardo (author)
- Forest Services, Autonomous Province of Bolzano,Free University of Bozen-Bolzano
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- Neirynck, Johan (author)
- Research Institute for Nature and Forest
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- Peichl, Matthias (author)
- Swedish University of Agricultural Sciences
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- Rebmann, Corinna (author)
- Helmholtz Centre for Environmental Research (UFZ)
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- Rubio, Eva (author)
- University of Castilla La Mancha
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- Santos-Reis, Margarida (author)
- University of Lisbon
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- Schaaf, Crystal (author)
- University of Massachusetts
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- Schmidt, Marius (author)
- Jülich Research Centre
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- Simioni, Guillaume (author)
- Institut national de recherche pour l'agriculture, l'alimentation et l'environnement (INRAE)
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- Soudani, Kamel (author)
- University of Paris-Saclay,Agro ParisTech
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- Vincke, Caroline (author)
- Catholic University of Louvain
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(creator_code:org_t)
- 2021-01-27
- 2021
- English 15 s.
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In: Biogeosciences. - : Copernicus GmbH. - 1726-4170 .- 1726-4189. ; 18:2, s. 621-635
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Abstract
Subject headings
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- Information about forest background reflectance is needed for accurate biophysical parameter retrieval from forest canopies (overstory) with remote sensing. Separating under- and overstory signals would enable more accurate modeling of forest carbon and energy fluxes. We retrieved values of the normalized difference vegetation index (NDVI) of the forest understory with the multi-angular Moderate Resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution function (BRDF)/albedo data (gridded 500 m daily Collection 6 product), using a method originally developed for boreal forests. The forest floor background reflectance estimates from the MODIS data were compared with in situ understory reflectance measurements carried out at an extensive set of forest ecosystem experimental sites across Europe. The reflectance estimates from MODIS data were, hence, tested across diverse forest conditions and phenological phases during the growing season to examine their applicability for ecosystems other than boreal forests. Here we report that the method can deliver good retrievals, especially over different forest types with open canopies (low foliage cover). The performance of the method was found to be limited over forests with closed canopies (high foliage cover), where the signal from understory becomes too attenuated. The spatial heterogeneity of individual field sites and the limitations and documented quality of the MODIS BRDF product are shown to be important for the correct assessment and validation of the retrievals obtained with remote sensing.
Subject headings
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Skogsvetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Forest Science (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Pisek, Jan
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Erb, Angela
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Korhonen, Lauri
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Biermann, Tobias
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Carrara, Arnaud
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Cremonese, Edoar ...
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show more...
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Cuntz, Matthias
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Fares, Silvano
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Gerosa, Giacomo
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Grünwald, Thomas
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Hase, Niklas
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Heliasz, Michal
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Ibrom, Andreas
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Knohl, Alexander
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Kobler, Johannes
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Kruijt, Bart
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Lange, Holger
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Leppänen, Leena
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Limousin, Jean-M ...
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Ramon Lopez Serr ...
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Loustau, Denis
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Lukeš, Petr
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Lundin, Lars
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Marzuoli, Riccar ...
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Mölder, Meelis
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Montagnani, Leon ...
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Neirynck, Johan
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Peichl, Matthias
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Rebmann, Corinna
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Rubio, Eva
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Santos-Reis, Mar ...
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Schaaf, Crystal
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Schmidt, Marius
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Simioni, Guillau ...
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Soudani, Kamel
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Vincke, Caroline
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show less...
- About the subject
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- AGRICULTURAL SCIENCES
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AGRICULTURAL SCI ...
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and Agriculture Fore ...
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and Forest Science
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Physical Geograp ...
- Articles in the publication
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Biogeosciences
- By the university
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Lund University