Search

Your search keyword '"Nedbal, L."' showing total 3 results
Start Over Author "Nedbal, L." Language undetermined
3 results on '"Nedbal, L."'

1. Remote sensing of solar-induced chlorophyll fluorescence (SIF) in vegetation: 50 years of progress

Author

Zbyněk Malenovský, Uwe Rascher, Wouter Verhoef, Joseph A. Berry, Alexander Damm, Jose Moreno, Ladislav Nedbal, Pablo J. Zarco-Tejada, Roberto Colombo, Luis Guanter, Joanna Joiner, Christiaan van der Tol, Oscar Perez-Priego, Yves Goulas, Ismael Moya, Sergio Cogliati, Elizabeth M. Middleton, Gina H. Mohammed, Michele Meroni, John R. Miller, Jean-Philippe Gastellu-Etchegorry, Christian Frankenberg, Australian Research Council, European Space Agency, University of Zurich, Mohammed, Gina H, Mohammed, G, Colombo, R, Middleton, E, Rascher, U, van der Tol, C, Nedbal, L, Goulas, Y, Pérez-Priego, O, Damm, A, Meroni, M, Joiner, J, Cogliati, S, Verhoef, W, Malenovský, Z, Gastellu-Etchegorry, J, Miller, J, Guanter, L, Moreno, J, Moya, I, Berry, J, Frankenberg, C, and Zarco-Tejada, P

Subjects
010504 meteorology & atmospheric sciences, FIS/06 - FISICA PER IL SISTEMA TERRA E PER IL MEZZO CIRCUMTERRESTRE, 0208 environmental biotechnology, Soil Science, Review, 02 engineering and technology, Photochemical Reflectance Index, 01 natural sciences, Article, GEO/11 - GEOFISICA APPLICATA, SIF retrieval methods, Radiative transfer modelling, Radiative transfer, 910 Geography & travel, Computers in Earth Sciences, Chlorophyll fluorescence, 1111 Soil Science, 1907 Geology, Airborne instruments, 0105 earth and related environmental sciences, Remote sensing, Stress detection, GEO/12 - OCEANOGRAFIA E FISICA DELL'ATMOSFERA, 1903 Computers in Earth Sciences, Primary production, Geology, Vegetation, Passive optical techniques, Field (geography), 020801 environmental engineering, GEO/10 - GEOFISICA DELLA TERRA SOLIDA, 10122 Institute of Geography, Sun-induced fluorescence, Remote sensing (archaeology), Sun-induced fluorescence, Steady-state photosynthesis, Stress detection, Radiative transfer modelling, SIF retrieval methods. Satellite sensors, Airborne instruments, Applications, Terrestrial vegetation, Passive optical techniques. Review, Applications, Terrestrial vegetation, Environmental science, Satellite, Steady-state photosynthesis, Satellite sensors
Abstract

Remote sensing of solar-induced chlorophyll fluorescence (SIF) is a rapidly advancing front in terrestrial vegetation science, with emerging capability in space-based methodologies and diverse application prospects. Although remote sensing of SIF – especially from space – is seen as a contemporary new specialty for terrestrial plants, it is founded upon a multi-decadal history of research, applications, and sensor developments in active and passive sensing of chlorophyll fluorescence. Current technical capabilities allow SIF to be measured across a range of biological, spatial, and temporal scales. As an optical signal, SIF may be assessed remotely using high-resolution spectral sensors in tandem with state-of-the-art algorithms to distinguish the emission from reflected and/or scattered ambient light. Because the red to far-red SIF emission is detectable non-invasively, it may be sampled repeatedly to acquire spatio-temporally explicit information about photosynthetic light responses and steady-state behaviour in vegetation. Progress in this field is accelerating with innovative sensor developments, retrieval methods, and modelling advances. This review distills the historical and current developments spanning the last several decades. It highlights SIF heritage and complementarity within the broader field of fluorescence science, the maturation of physiological and radiative transfer modelling, SIF signal retrieval strategies, techniques for field and airborne sensing, advances in satellite-based systems, and applications of these capabilities in evaluation of photosynthesis and stress effects. Progress, challenges, and future directions are considered for this unique avenue of remote sensing., In addition, we recognize the following funding: Zbyněk Malenovský was supported by the Australian Research Council Future Fellowship Bridging Scales in Remote Sensing of Vegetation Stress (FT160100477). Uwe Rascher acknowledges the SEN2Exp project funded by the European Space Agency in supporting part of this work.

Published
2019

2. Red and far-red sun-induced chlorophyll fluorescence as a measure of plant photosynthesis

Author

Tommaso Julitta, Matthias Drusch, Panagiotis Kokkalis, Sergio Cogliati, A. Ač, Andreas Burkart, Micol Rossini, Roberto Colombo, Francisco de Assis de Carvalho Pinto, J. Moreno, Luis Guanter, Jan Hanuš, Jan Novotny, Ladislav Nedbal, Anke Schickling, R. Janoutova, Dirk Schüttemeyer, Uwe Rascher, Luis Alonso, Alexander Damm, František Zemek, Cinzia Panigada, University of Zurich, Rossini, Micol, Rossini, M, Nedbal, L, Guanter, L, Ač, A, Alonso, L, Burkart, A, Cogliati, S, Colombo, R, Damm, A, Drusch, M, Hanus, J, Janoutova, R, Julitta, T, Kokkalis, P, Moreno, J, Novotny, J, Panigada, C, Pinto, F, Schickling, A, Schüttemeyer, D, Zemek, F, and Rascher, U

Subjects
Chemistry, 1900 General Earth and Planetary Sciences, Imaging spectrometer, food and beverages, Far-red, Photosynthetic efficiency, Photosynthesis, Fluorescence, GEO/10 - GEOFISICA DELLA TERRA SOLIDA, 10122 Institute of Geography, Geophysics, Radiance, ddc:550, General Earth and Planetary Sciences, 910 Geography & travel, 1908 Geophysics, Controlled experiment, fluorescence, airborne sensor, high resolution, photosynthesis, Chlorophyll fluorescence, Remote sensing
Abstract

Remote estimation of Sun-induced chlorophyll fluorescence emitted by terrestrial vegetation can provide an unparalleled opportunity to track spatiotemporal variations of photosynthetic efficiency. Here we provide the first direct experimental evidence that the two peaks of the chlorophyll fluorescence spectrum can be accurately mapped from high-resolution radiance spectra and that the signal is linked to variations in actual photosynthetic efficiency. Red and far red fluorescence measured using a novel airborne imaging spectrometer over a grass carpet treated with an herbicide known to inhibit photosynthesis was significantly higher than the corresponding signal from an equivalent untreated grass carpet. The reflectance signal of the two grass carpets was indistinguishable, confirming that the fast dynamic changes in fluorescence emission were related to variations in the functional status of actual photosynthesis induced by herbicide application. Our results from a controlled experiment at the local scale illustrate the potential for the global mapping of terrestrial photosynthesis through space-borne measurements of chlorophyll fluorescence. Key Points A novel high-resolution airborne sensor is flown Both red and far red Sun-induced fluorescence signals are accurately quantified Red and far red fluorescence tracks variations in photosynthetic efficiency

Published
2015
Full Text
View/download PDF

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

Author

Elizabeth M. Middleton, Dan Lobb, Yasunori Saito, Alexander Dudelzak, Jose Moreno, Andrew Court, Gregory P. Asner, Jaume Flexas, Massimo Menenti, Jean-Louis Roujean, Richard Fernandes, Michael E. Schaepman, Federico Magnani, Wout Verhoef, Jesus B. Serrano, Carsten Tobehn, Roberto Pedrós, Ray Merton, Jim Gower, Alfonso Martinez, Andries Rosema, Guido D'Urso, Albert Olioso, Javier Calpe, Mercedes Sierra, Roberto Colombo, Alfonso Calera, Antonio Palucci, Heike Bach, Z. Bob Su, Jan Polcher, Joachim Hill, Giovanna Cecchi, Edward J. Milton, Philip Lewis, Claus Buschmann, Robert O. Green, Ladislav Nedbal, Frank Veroustraete, Ismael Moya, Wolfgang Knorr, Pablo J. Zarco-Tejada, Uwe Rascher, Anatoly A. Gitelson, Gina H. Mohammed, Mathias Kneubühler, Li Jia, Antonio Plaza, Stéphane Jacquemoud, Stefania Pace, Pablo Martinez-Cobo, Michel M. Verstraete, Petya K. E. Campbell, Peter Gege, Tuomas Laurila, José A. Sobrino, Michal V. Marek, Andrew Bell, Rainer Reuter, Nicolas Tremblay, Piero Mazzinghi, Mathias Disney, J. J. Settle, Lawrence A. Corp, Stefan W. Maier, Tomás Belenguer, Jouni Peltoniemi, Marc Philippe Stoll, Eduardo de Miguel, Mike A. Cutter, Birgit Gielen, Bernard Saugier, Roland Valcke, Catherine Ottlé, Emanuel U. Gloor, Fermín Morales, Josep Peñuelas, John R. Miller, TNO Industrie en Techniek, 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, Guido, Fernandes, R., Flexas, J., Gege, P., Gielen, B., Gitelson, A., Gloor, E. U., Gower, J., Green, R. O., Hill, J., Jacquemoud, S., Jia, L., Kneubuhler, 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., Ottle, C., Olioso, A., Pace, S., Palucci, A., Pedros, R., Peltoniemi, J., Penuelas, 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., Department of Earth Physics and Thermodynamics [Valencia], Universitat de València (UV), Stanford University, VISTA GmbH, Laboratorio de Astrofísica, CAB (CSIC-INTA), Villanueva de la Cañada, Madrid, EMS Technologies Canada Ltd, Universität Karlsruhe (TH), Universidad de Castilla-La Mancha = University of Castilla-La Mancha (UCLM), NASA Goddard Space Flight Center (GSFC), Institute of Applied Physics 'Nello Carrara' (IFAC), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Hydrology and Remote Sensing Laboratory, USDA Agricultural Research Service [Beltsville, Maryland], USDA-ARS : Agricultural Research Service-USDA-ARS : Agricultural Research Service, TNO Science and Industry, The Netherlands Organisation for Applied Scientific Research (TNO), Sira Technology Ltd, University College of London [London] (UCL), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Institut de Physique du Globe de Paris (IPGP (UMR_7154)), Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), York University [Toronto], Laboratoire pour l'utilisation du rayonnement électromagnétique (LURE), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-MENRT-Centre National de la Recherche Scientifique (CNRS), Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre national de recherches météorologiques (CNRM), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Ecologie Systématique et Evolution (ESE), AgroParisTech-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), National Aerospace Laboratory [Amsterdam] (NLR), National Aerospace, Flemish Institute for Technological Research (VITO), European Commission - Joint Research Centre [Ispra] (JRC), Faculty of Geo-Information Science and Earth Observation, UT-I-ITC-WCC, and Department of Water Resources

Subjects
Optimization, Earth observation, Atmospheric chemistry, Alterra - Centrum Geo-informatie, Fluorescence, remote sensing, Laboratory of Geo-information Science and Remote Sensing, Three-instrument array, FLEX, Life Science, Laboratorium voor Geo-informatiekunde en Remote Sensing, Wageningen Environmental Research, Photosynthesis, Space research, Water balance, Chlorophyll fluorescence, Remote sensing, Vegetation, Resilience, Payload, Chemistry, Centre Geo-information, PE&RC, Earth system science, FLuorescence EXplorer (FLEX), [SDE]Environmental Sciences, Earth (planet), Soils, Terrestrial vegetation, Satellite
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.

Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results