Fluorescence Canopy Model

 

 

          A study was launched in October 2002 by the European Space Agency (ESA) to advance the underlying science of a possible future vegetation fluorescence space mission by addressing the need for an integrated canopy fluorescence model. The objective of this study was to review and advance existing fluorescence models at the leaf level and to integrate these into canopy models in order to simulate the combined spectral reflected radiance and fluorescence emission signals. This model has been developed with the aid of new and existing laboratory and field campaign measurements.

This Website provides the software and related publications developed under the FluorMOD project, describing the background for the choice of the leaf-level and canopy-level models which have been adapted for simulation of the fluorescence emission that is added to the canopy radiance signal. The model is based on a modified version of PROSPECT (FluorMODleaf) which includes an elementary fluorescence emission spectrum and allows a dependence on some physiological variables, e.g., canopy temperature and illumination light levels. The canopy model is based on the turbid medium SAIL model (FluorSAIL), modified to internally compute the illumination levels through the canopy, to couple with FluorMODleaf, and through MODTRAN, to provide a means of simulating incoming irradiance at the top of the canopy as well as the upwelling radiance above the atmosphere at spectral resolution of 1 nm in the 400 to 1000 nm wavelength range. Further, a graphical user interface has been developed (FluorMODgui) as a consistent means of linking leaf and canopy simulations for evaluation and validation of the fluorescence model between team members and the community with the idea of continuing understanding the leaf model, canopy model, and the nature of the physiological controls.

 

Funding Institution: European Space Agency ESA-ESTEC contract no. 16365/02/NL/FF.

 

Partners and Team Members:

•  J.R. Miller , York University, Canada - Principal Investigator.

•  M. Berger , ESA-ESTEC, The Netherlands - Project Manager.

 

Leaf Model Development - FluorMODleaf:

•  S. Jacquemoud , U. Paris, France.

•  R. Pedrós , U. Paris/LURE, France.

•  I. Moya , LURE, France.

•  Y. Goulas , LURE, France.

•  J. Louis , LURE, France.

 

Canopy Model Development - FluorSAIL:

•  W. Verhoef , NLR, The Netherlands.

•  Leaf-Canopy Model Interface Development - FluorMODgui:

•  P.J. Zarco-Tejada , IAS-CSIC, Spain.

 

Physiological and Environmental Drivers of Chlorophyll Fluorescence:

•  G. Mohammed , P&M Technologies, Canada.

•  I. Moya , LURE, France.

 

Model Validation Experiments and Lab/Field Data Collection:

•  J. Moreno , U. Valencia, Spain.

•  I. Moya , LURE, France.

•  P.J. Zarco-Tejada , IAS-CSIC, Spain.

 

Project Reports

Miller, J.R., Berger, M., Goulas, Y., Jacquemoud, S., Louis, J., Moise, N., Mohammed, G., Moreno, J., Moya, I., Pedrós, R., Verhoef, W., and Zarco-Tejada, P.J., Development of a Vegetation Fluorescence Canopy Model, ESTEC Contract No. 16365/02/NL/FF, Final Report, May 2005.

 

 

Background Fluorescence Literature  

During the course of the project the fluorescence literature was reviewed and consulted extensively, as included in the reference in the FluorMOD report. Links to this literature is provided for the convenience of the interested community.

 

 

Relevant Publications

In this section you can find published material presented at Conferences, Simposia and Journals related to this research project.

•  Miller, J.R., Berger, M., Alonso, L., Cerovic, Z., Goulas, Y., Jacquemoud, S., Louis, J., Mohammed, G., Moya, I., Pedrós, R., Moreno, J., Verhoef, W., Zarco-Tejada, P.J., Progress on the Development of an Integrated Canopy Fluorescence Model, 2003 International Geoscience and Remote Sensing Symposium, IGARSS'03, pp. 601-603 Vol.1, ISBN 0-7803-7929-2 - 0-7803-7930-6, Toulouse (France), 21-25 / 7 /2004.

•  Miller, J.R., Berger, M., Jacquemoud, S., Moreno, J., Mohammed, G., Moya, I., Pedrós, R., Verhoef, W., Zarco-Tejada, P.J., Alonso, L., Goulas, Y., and Louis, J. (2004), Overview of FluorMOD: A Project to Develop an Integrated Leaf-Canopy Fluorescence Simulation Model, 2nd International Workshop on Remote Sensing of Vegetation Fluorescence, 17-19 Nov. 2004, Montreal (Canada).

•  Pedrós, R., S. Jacquemoud, Y. Goulas, J. Louis, I. Moya, A New Leaf Fluorescence Model, 2nd International Workshop on Remote Sensing of Vegetation Fluorescence, 17-19 Nov. 2004, Montreal, Canada.

•  Verhoef, W., Extension of SAIL to Model Solar-Induced Canopy Fluorescence Spectra, 2nd International Workshop on Remote Sensing of Vegetation Fluorescence, 17-19 Nov. 2004, Montreal, Canada.

•  Zarco-Tejada P.J., Pérez-Priego O., Sepulcre-Cantó G., Miller J.R., and Fereres E. (2005), Chlorophyll Fluorescence Detection with a High-Spectral Resolution Spectrometer through in-filling of the O2-A band as function of Water Stress in Olive Trees, 2nd International Workshop on Remote Sensing of Vegetation Fluorescence, 17-19 Nov. 2004, Montreal (Canada).

•  Zarco-Tejada, P.J., J.R. Miller, R. Pedrós, W. Verhoef, and M. Berger, FluorMODgui: A Graphic User Interface for the Spectral Simulation of Leaf and Canopy Fluorescence Effects, 2nd International Workshop on Remote Sensing of Vegetation Fluorescence, 17-19 Nov. 2004, Montreal, Canada.

•  Zarco-Tejada, P.J., J.R. Miller, R. Pedrós, W. Verhoef, and M. Berger, FluorMODgui V3.0: A Graphic User Interface for the Spectral Simulation of Leaf and Canopy Chlorophyll Fluorescence, Computers & Geosciences (submitted).