Duffour C., Olioso A., Demarty Jérome, Van der Tol C., Lagouarde J. P. (2015). An evaluation of SCOPE : a tool to simulate the directional anisotropy of satellite-measured surface temperatures. Remote Sensing of Environment, 158, p. 362-375. ISSN 0034-4257.
Titre du document
An evaluation of SCOPE : a tool to simulate the directional anisotropy of satellite-measured surface temperatures
Duffour C., Olioso A., Demarty Jérome, Van der Tol C., Lagouarde J. P.
Source
Remote Sensing of Environment, 2015,
158, p. 362-375 ISSN 0034-4257
This study assesses the performance of the SCOPE model (Van der Tol et al., 2009) to reproduce directional anisotropy of remote sensing thermal infrared measurements. A calibration/validation exercise over two datasets (winter wheat and young pine stand) on energy balance fluxes is presented. Surface sensible and latent heat fluxes are correctly simulated (with RMSE in the range of 30-50 W.m(-2)) together with directional temperatures in 4 different viewing geometries (RMSE < 1.4 K) for both canopies. The sensitivity of the model to two critical but uncertain parameters, the maximum carboxylation capacity V-cmo, and a stomatal parameter lambda (the marginal water cost of carbon assimilation) is discussed; it is shown that anisotropy displays limited sensitivity to both parameters for the experimental conditions met over a well-watered wheat field. The ability of SCOPE to simulate anisotropy is finally illustrated by a qualitative comparison against experimental measurements obtained over a mature pine stand using an airborne TIR camera. SCOPE-simulated TIR directional anisotropy appears to be consistent with the experimental data.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Bioclimatologie [072]
;
Télédétection [126]
