Scientific Results

Fluorescence explorer (FLEX): An optimised payload to map vegetation photosynthesis from space

Year: 2006

Authors: Moreno J.F., Asner G.P., Bach H., Belenguer T., Bell A., Buschmann C., Calera A., Calpe J., Campbell P., Cecchi G., Colombo R., Corp L.A., Court A., Cutter M.A., Disney M., Dudelzak A., D\’Urso G., Fernandes R., Flexas J., Gege P., Gielen B., Gitelson A., Gloor E.U., Gower J., Green R.O., Hill J., Jacquemoud S., Jia L., Kneubühler M., Laurila T., Lewis P., Lobb D., Magnani F., Maier S.W., Marek M.V., Martinez A., Martinez-Cobo P., Mazzinghi P., Menenti M., Merton R., Middleton E., De Miguel E., Miller J., Mohammed G., Milton E.J., Morales F., Moya I., Nedbal L., Knorr W., Ottlé C., Olioso A., Pace S., Palucci A., Pedros R., Peltoniemi J., Peñuelas J., Plaza A., Polcher J., Rascher U., Reuter R., Rosema A., Roujean J.-L., Saito Y., Saugier B., Schaepman M., Serrano J.B., Settle J.J., Sierra M., Sobrino J., Stoll M.-P., Bob Su Z., Tobehn C., Tremblay N., Valcke R., Verhoef W., Veroustraete F., Verstraete M., Zarco-Tejada P.

Autors Affiliation: Dept. Earth Physics and Thermodynamics, Faculty of Physics, University of Valencia, Dr. Moliner, 50, 46100 Burjassot, Valencia, Spain; Carnegie Institution of Washington, Stanford, CA, United States; VISTA GmbH, Munich, Germany; INTA, Madrid, Spain; EMS Technologies Canada Ltd., Ottawa, ON, Canada; Universität Karlsruhe – Botanik II, Karlsruhe, Germany; University of Castilla-La Mancha, Albacete, Spain; Electronics Dept., Engineering School, Valencia, Spain; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Applied Physics Institute, CNR, Florence, Italy; Dept. Environmental Sciences, Univ. Milano, Bicocca, Italy; USDA ARS Hydrology and Remote Sensing Lab., Beltsville, MD, United States; TNO Science and Industry, Netherlands; Sira Technology Ltd., Chislehurst, Kent, United Kingdom; NERC CTCD, UCL, London, United Kingdom; CSA, Montreal, Canada; Dept. Agricultural Engineering, University of Naples Federico II, Naples, Italy; CCRS, Ottawa, ON, Canada; UIB-CSIC, Universität de les Ules Balears, Palma de Mallorca, Baleares, Spain; Remote Sensing Technology Institute, DLR Oberpfaffenhofen, Germany; Department of Biology, University of Antwerp, Wilrijk, Belgium; University of Nebraska, Lincoln, NE, United States; Univ. Princeton, United States; Institute of Ocean Sciences, Canada; NASA Jet Propulsion Laboratory, Pasadena, CA, United States; University of Trier, Germany; University Paris, Paris, France; Alterra, Wageningen University, Netherlands; Remote Sensing Laboratories, University of Zurich, Switzerland; FMI, Helsinki, Finland; DCA, University of Bologna, Italy; Satellite Remote Sensing Services, Dep. Land Information, Floreat, WA, Australia; Laboratory of Ecological Physiology, Brno, Czech Republic; EADS-CASA Espacio, Madrid, Spain; GRNPS, University of Extremadura, Spain; INOA, Florence, Italy; LSIIT, Université Louis Pasteur, Strasbourg, France; Centre for Remote Sensing, GIS, University of New South Wales, Sydney, Australia; York University, Toronto, Canada; P and M Technologies, Canada; School of Geography, University of Southampton, United Kingdom; Department of Plant Nutrition, EEAD-CSIC, Zaragoza, Spain; LURE-CNRS, Paris, France; Inst. Landscape Ecology, Physical Biology, Nové Hrady, Czech Republic; Department of Earth Sciences, QUEST, University of Bristol, Bristol, United Kingdom; CETP-IPSL-CNRS, Vélizy, France; INRA, Avignon, France; ENEA Centro Ricerche Trisaia, Policoro, Italy; ENEA CR, Frascati, Italy; Solar Radiation Unit, University of Valencia, Valencia, Spain; Finnish Geodetic Institute, Helsinki, Finland; CREAF-CSIC, Barcelona, Spain; Laboratoire de Météorologie Dynamique, CNRS, Paris, France; Institute of Chemistry and Dynamics of the Geosphere, Research Center Jülich, Germany; Institute of Physics, University of Oldenburg, Germany; EARS, Delft, Netherlands; CNRM/GMME/MATIS, Meteo-France, Toulouse, France; Faculty of Engineering, Shinshu University, Nagano, Japan; Université Paris-Sud, Paris, France; Centre for Geo-Information, Wageningen University, Netherlands; GMV, Madrid, Spain; Environmental Systems Science Centre, University of Reading, Reading, United Kingdom; SENER, Madrid, Spain; Global Change Unit, University of Valencia, Valencia, Spain; ITC, Enschede, Netherlands; OHB-System AG, Bremen, Germany; Agriculture and Agri-Food Canada, Canada; Limburgs Universitair Centrum, Diepenbeek, Belgium; NLR, Netherlands; VITO, Belgium; JRC, Italy; IAS-CSIC, Cordoba, Spain

Abstract: The FLuorescence EXplorer (FLEX) mission proposes to launch a satellite for the global monitoring of steady-state chlorophyll fluorescence in terrestrial vegetation. Fluorescence is a sensitive probe of photosynthetic function in both healthy and physiologically perturbed vegetation, and a powerful non-invasive tool to track the status, resilience, and recovery of photochemical processes and moreover provides important information on overall photosynthetic performance with implications for related carbon sequestration. The early responsiveness of fluorescence to atmospheric, soil and plant water balance, as well as to atmospheric chemistry and human intervention in land usage makes it an obvious biological indicator in improving our understanding of Earth system dynamics. The amenability of fluorescence to remote, even space-basedobservation qualifies it to join the emerging suite of space-based technologies for Earth observation. FLEX would encompass a three-instrument array for measurement of the interrelated features of fluorescence, hyperspectral reflectance, and canopy temperature. FLEX would involve a space and ground-truthing program of 3-years duration and would provide data formats for research and applied science.

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KeyWords: Atmospheric chemistry; Earth (planet); Fluorescence; Optimization; Photosynthesis; Soils; Vegetation, FLuorescence EXplorer (FLEX); Resilience; Terrestrial vegetation; Three-instrument array; Water balance, Space research
DOI: 1000000000000000

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