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Ground Data are Essential for Biomass Remote Sensing Missions

Chave, J; Davies, SJ; Phillips, OL; Lewis, SL; Sist, P; Schepaschenko, D; Armston, J; ... Saatchi, S; + view all (2019) Ground Data are Essential for Biomass Remote Sensing Missions. Surveys in Geophysics , 40 (4) pp. 863-880. 10.1007/s10712-019-09528-w. Green open access

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Abstract

Several remote sensing missions will soon produce detailed carbon maps over all terrestrial ecosystems. These missions are dependent on accurate and representative in situ datasets for the training of their algorithms and product validation. However, long-term ground-based forest-monitoring systems are limited, especially in the tropics, and to be useful for validation, such ground-based observation systems need to be regularly revisited and maintained at least over the lifetime of the planned missions. Here we propose a strategy for a coordinated and global network of in situ data that would benefit biomass remote sensing missions. We propose to build upon existing networks of long-term tropical forest monitoring. To produce accurate ground-based biomass estimates, strict data quality must be guaranteed to users. It is more rewarding to invest ground resources at sites where there currently is assurance of a long-term commitment locally and where a core set of data is already available. We call these ‘supersites’. Long-term funding for such an inter-agency endeavour remains an important challenge, and we here provide costing estimates to facilitate dialogue among stakeholders. One critical requirement is to ensure in situ data availability over the lifetime of remote sensing missions. To this end, consistent guidelines for supersite selection and management are proposed within the Forest Observation System, long-term funding should be assured, and principal investigators of the sites should be actively involved.

Type: Article
Title: Ground Data are Essential for Biomass Remote Sensing Missions
Location: Int Space Sci Inst, Bern, SWITZERLAND
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/s10712-019-09528-w
Publisher version: https://doi.org/10.1007/s10712-019-09528-w
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: biomass; calibration; forest; in situ data; validation
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/10080217
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