Carter S6Laboratory of Geo-Information Science and Remote Sensing, Wageningen University and Research, Droevendaalsesteeg 3, 6708 PB Wageningen, The Netherlands.
Chave J7Laboratoire Evolution et Diversit. Biologique, UMR 5174, CNRS, Universit. Toulouse Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
Herold M6Laboratory of Geo-Information Science and Remote Sensing, Wageningen University and Research, Droevendaalsesteeg 3, 6708 PB Wageningen, The Netherlands.
Crowther TW8Institute of Integrative Biology, ETH Zürich, Univeritätstrasse 16, 8006 Zurich, Switzerland.
Falkowski M9Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO 80523 USA.
Kellner JR10Institute at Brown for Environment and Society, Brown University, Providence, RI 02912 USA.
Labrière N7Laboratoire Evolution et Diversit. Biologique, UMR 5174, CNRS, Universit. Toulouse Paul Sabatier, 118 route de Narbonne, 31062 Toulouse cedex 9, France.
Lucas R12Earth Observation and Ecosystem Dynamics Research Group, Department of Geography and Earth Sciences (DGES), Aberystwyth University, Aberystwyth, Wales SY23 3DB UK.
MacBean N13Department of Geography, Indiana University, 701 E. Kirkwood Ave., Bloomington, IN 47405 USA.
McRoberts RE14USDA Forest Service, Northern Research Station, Saint Paul, 1992 Folwell Ave, St Paul, MN 55108 USA.
Meyer V15Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA.
Næsset E16Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, NMBU, P.O. Box 5003, 1432 Ås, Norway.
Nickeson JENASA Goddard Space Flight Center/Science Systems and Applications Inc., 10210 Greenbelt Rd #600, Lanham, MD 20706 USA.
Paul KI18CSIRO Land and Water, GPO Box 1700, Canberra, ACT 2601 Australia.
Phillips OL19School of Geography, University of Leeds, Leeds, LS2 9JT UK.
Réjou-Méchain M4AMAP, IRD, CIRAD, CNRS, INRA, Montpellier University, TA A51/PS2, 34398 Montpellier cedex 5, France.
Román M25Earth from Space Institute, Universities Space Research Association, Columbia, MD USA.
Roxburgh S18CSIRO Land and Water, GPO Box 1700, Canberra, ACT 2601 Australia.
Saatchi S15Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA.
Schepaschenko D20International Institute for Applied Systems Analysis, Schlossplatz 1, 2361 Laxenburg, Austria.
Scipal K21European Space Agency, ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands.
Siqueira PR22Department of Electrical and Computer Engineering, 201 Marcus Hall, University of Massachusetts, 100 Natural Resources Road, Amherst, MA 01003 USA.
Whitehurst AArctic Slope Federal Technical Services, 7000 Muirkirk Meadows Dr #100, Laurel, MD 20707 USA.
Williams M24School of GeoScience, University of Edinburgh, Drummond St, Edinburgh, EH8 9XP UK.
English
Several upcoming satellite missions have core science requirements to produce data for accurate forest aboveground biomass mapping. Largely because of these mission datasets, the number of available biomass products is expected to greatly increase over the coming decade. Despite the recognized importance of biomass mapping for a wide range of science, policy and management applications, there remains no community accepted standard for satellite-based biomass map validation. The Committee on Earth Observing Satellites (CEOS) is developing a protocol to fill this need in advance of the next generation of biomass-relevant satellites, and this paper presents a review of biomass validation practices from a CEOS perspective. We outline the wide range of anticipated user requirements for product accuracy assessment and provide recommendations for the validation of biomass products. These recommendations include the collection of new, high-quality in situ data and the use of airborne lidar biomass maps as tools toward transparent multi-resolution validation. Adoption of community-vetted validation standards and practices will facilitate the uptake of the next generation of biomass products.