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Past decade above-g...
Past decade above-ground biomass change comparisons from four multi-temporal global maps
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- Araza, Arnan (författare)
- Wageningen University
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- Herold, Martin (författare)
- Wageningen University,GFZ German Research Centre for Geosciences
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- de Bruin, Sytze (författare)
- Wageningen University
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- Ciais, Philippe (författare)
- University of Paris-Saclay
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- Gibbs, David A. (författare)
- World Resources Institute (WRI)
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- Harris, Nancy (författare)
- World Resources Institute (WRI)
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- Santoro, Maurizio (författare)
- Gamma Remote Sensing
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Wigneron, Jean Pierre (författare)
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- Yang, Hui (författare)
- University of Paris-Saclay
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- Málaga, Natalia (författare)
- Wageningen University
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- Nesha, Karimon (författare)
- Wageningen University
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- Rodriguez-Veiga, Pedro (författare)
- University of Leicester,Natural Environment Research Council (NERC)
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- Brovkina, Olga (författare)
- Academy of Sciences of the Czech Republic
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- Brown, Hugh C.A. (författare)
- University of Helsinki
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Chanev, Milen (författare)
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- Dimitrov, Zlatomir (författare)
- Space Research and Technology Institute
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Filchev, Lachezar (författare)
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- Fridman, Jonas (författare)
- Swedish University of Agricultural Sciences
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- García, Mariano (författare)
- University of Alcalá
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Gikov, Alexander (författare)
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Govaere, Leen (författare)
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Dimitrov, Petar (författare)
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- Moradi, Fardin (författare)
- Razi University
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- Muelbert, Adriane Esquivel (författare)
- University of Birmingham
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- Novotný, Jan (författare)
- Academy of Sciences of the Czech Republic
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- Pugh, Thomas A.M. (författare)
- Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,MERGE: ModElling the Regional and Global Earth system,Institutionen för naturgeografi och ekosystemvetenskap,LU profilområde: Naturbaserade framtidslösningar,Lunds universitets profilområden,Centre for Environmental and Climate Science (CEC),Faculty of Science,Dept of Physical Geography and Ecosystem Science,LU Profile Area: Nature-based future solutions,Lund University Profile areas,University of Birmingham
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- Schelhaas, Mart Jan (författare)
- Wageningen University
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- Schepaschenko, Dmitry (författare)
- International Institute for Applied Systems Analysis
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Stereńczak, Krzysztof (författare)
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- Hein, Lars (författare)
- Wageningen University
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: International Journal of Applied Earth Observation and Geoinformation. - 1569-8432. ; 118
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Above-ground biomass (AGB) is considered an essential climate variable that underpins our knowledge and information about the role of forests in mitigating climate change. The availability of satellite-based AGB and AGB change (ΔAGB) products has increased in recent years. Here we assessed the past decade net ΔAGB derived from four recent global multi-date AGB maps: ESA-CCI maps, WRI-Flux model, JPL time series, and SMOS-LVOD time series. Our assessments explore and use different reference data sources with biomass re-measurements within the past decade. The reference data comprise National Forest Inventory (NFI) plot data, local ΔAGB maps from airborne LiDAR, and selected Forest Resource Assessment country data from countries with well-developed monitoring capacities. Map to reference data comparisons were performed at levels ranging from 100 m to 25 km spatial scale. The comparisons revealed that LiDAR data compared most reasonably with the maps, while the comparisons using NFI only showed some agreements at aggregation levels <10 km. Regardless of the aggregation level, AGB losses and gains according to the map comparisons were consistently smaller than the reference data. Map-map comparisons at 25 km highlighted that the maps consistently captured AGB losses in known deforestation hotspots. The comparisons also identified several carbon sink regions consistently detected by all maps. However, disagreement between maps is still large in key forest regions such as the Amazon basin. The overall ΔAGB map cross-correlation between maps varied in the range 0.11–0.29 (r). Reported ΔAGB magnitudes were largest in the high-resolution datasets including the CCI map differencing (stock change) and Flux model (gain-loss) methods, while they were smallest according to the coarser-resolution LVOD and JPL time series products, especially for AGB gains. Our results suggest that ΔAGB assessed from current maps can be biased and any use of the estimates should take that into account. Currently, ΔAGB reference data are sparse especially in the tropics but that deficit can be alleviated by upcoming LiDAR data networks in the context of Supersites and GEO-Trees.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Naturgeografi (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Physical Geography (hsv//eng)
Nyckelord
- Above-ground biomass
- Above-ground biomass change
- Carbon flux
- Earth observation
- Global carbon cycle
- Map assessment
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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Araza, Arnan
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Herold, Martin
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de Bruin, Sytze
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Ciais, Philippe
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Gibbs, David A.
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Harris, Nancy
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visa fler...
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Santoro, Maurizi ...
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Wigneron, Jean P ...
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Yang, Hui
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Málaga, Natalia
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Nesha, Karimon
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Rodriguez-Veiga, ...
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Brovkina, Olga
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Brown, Hugh C.A.
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Chanev, Milen
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Dimitrov, Zlatom ...
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Filchev, Lacheza ...
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Fridman, Jonas
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García, Mariano
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Gikov, Alexander
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Govaere, Leen
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Dimitrov, Petar
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Moradi, Fardin
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Muelbert, Adrian ...
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Novotný, Jan
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Pugh, Thomas A.M ...
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Schelhaas, Mart ...
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Schepaschenko, D ...
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Stereńczak, Krzy ...
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Hein, Lars
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