Preprints
https://doi.org/10.5194/gmd-2020-251
https://doi.org/10.5194/gmd-2020-251

Submitted as: model description paper 28 Oct 2020

Submitted as: model description paper | 28 Oct 2020

Review status: this preprint is currently under review for the journal GMD.

SCOPE 2.0: A model to simulate vegetated land surface fluxes and satellite signals

Peiqi Yang, Egor Prikaziuk, Wout Verhoef, and Christiaan van der Tol Peiqi Yang et al.
  • University of Twente, Faculty ITC, P.O. Box 217, 7500 AE Enschede, The Netherlands

Abstract. The Soil Canopy Observation of Photosynthesis and Energy fluxes (SCOPE) model aims at linking satellite observations in the visible, infrared and thermal domains with land surface processes in a physically based manner, and quantifying the micro-climate in the canopy. It simulates radiative transfer in the soil, leaves and vegetation canopies, as well as photosynthesis and non-radiative heat dissipation through convection and mechanical turbulence. Since the first publication 11 years ago, SCOPE has been applied in remote sensing studies of solar-induced chlorophyll fluorescence (SIF), energy balance fluxes, gross primary productivity (GPP) and directional thermal signals. Here we present a thoroughly revised version, SCOPE 2.0, which features a number of new elements: (1) It enables the definition of layers consisting of leaves with different properties, thus enabling the simulation of vegetation with an understory or with a vertical gradient in leaf chlorophyll concentration; (2) It enables the simulation of soil reflectance; (3) It includes the simulation of leaf and canopy reflectance changes induced by the xanthophyll cycle; and (4) The computation speed has been reduced by 90 % compared to earlier versions due to a fundamental optimization of the model. These new features improve the capability of the model to represent complex canopies and to explore the response of remote sensing signals to vegetation physiology. The improvements in the computational efficiency make it possible to use SCOPE 2.0 routinely for the simulation of satellite data and land surface fluxes. It also strengthens the operability for the numerical retrieval of land surface products from satellite or airborne data.

Peiqi Yang et al.

 
Status: open (extended)
Status: open (extended)
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Peiqi Yang et al.

Peiqi Yang et al.

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Short summary
Since the first publication 11 years ago, the SCOPE model has been applied in remote sensing studies of solar-induced chlorophyll fluorescence (SIF), energy balance fluxes, gross primary productivity (GPP) and directional thermal signals. Here we present a thoroughly revised version, SCOPE 2.0, which features a number of new elements.