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.

中文翻译：

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一致的全球森林地上生物质产品验证的重要性

几个即将到来的卫星任务具有核心科学要求，以生成用于准确森林地上生物量测绘的数据。主要由于这些任务数据集，预计未来十年可用的生物质产品的数量将大大增加。尽管生物量测绘对于广泛的科学、政策和管理应用的重要性得到公认，但仍然没有社区接受的基于卫星的生物量图验证标准。地球观测卫星委员会 (CEOS) 正在制定一项协议，以在下一代生物质相关卫星之前满足这一需求，本文从 CEOS 的角度回顾了生物质验证实践。我们概述了对产品准确性评估的广泛预期用户要求，并为生物质产品的验证提供建议。这些建议包括收集新的、高质量的原位数据以及使用机载激光雷达生物量地图作为透明多分辨率验证的工具。采用社区审查的验证标准和做法将促进下一代生物质产品的采用。