Part 1: Gap analysis for virtual scene
This technical report summarizes the results of a gap analysis aimed to identify the measurements needed to parameterize a 3D virtual model of the Integrated Carbon Observation System (ICOS) San Rossore 2 (IT-SR2) ecosystem station installed in a stone pine dominated Mediterranean forest near Pisa (Tuscany, Italy). The virtual scene is needed to perform Monte-Carlo (MC) radiative transfer model simulations in the shortwave spectral range, to support the calibration and validation (cal/val) activities in the frame of Copernicus bio-geophysical parameters retrieval algorithms. The investigation identified a valuable set of measurements characterizing the structural properties of the canopy through field sampling of diameter breast height (DBH) and tree height and location, tree species, Basal Area, and foliage sampling. They were annually collected since 2018 over two continuous monitor plots (CP) and in 2018 over 20 sparse selected across the 37 ha ICOS target area (TA) to characterize the heterogeneity of the forest. This information, summarized by proper allometric equation which combines various bio-geophysical parameters, combined with 1) tree model databases, and 2) high resolution remote sensing products obtained from Sentinel-2 Multispectral Imager (MSI) imagery will allow us to implement a semi-parametric model of the canopy in 2024.
URRACA VALLE Ruben;
LANCONELLI Christian;
ARRIGA Nicola;
MARIONI Mirko;
GOBRON Nadine;
2024-05-30
Publications Office of the European Union
JRC136424
978-92-68-12867-1 (online),
1831-9424 (online),
EUR 31852 EN,
OP KJ-NA-31-852-EN-N (online),
https://publications.jrc.ec.europa.eu/repository/handle/JRC136424,
10.2760/377386 (online),
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