Search Results - "Frankenberg, Christian"

Interpreting contemporary trends in atmospheric methane by Turner, Alexander J., Frankenberg, Christian, Kort, Eric A.

“…Atmospheric methane plays a major role in controlling climate, yet contemporary methane trends (1982–2017) have defied explanation with numerous, often…”
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Overview of Solar-Induced chlorophyll Fluorescence (SIF) from the Orbiting Carbon Observatory-2: Retrieval, cross-mission comparison, and global monitoring for GPP by Sun, Ying, Frankenberg, Christian, Jung, Martin, Joiner, Joanna, Guanter, Luis, Köhler, Philipp, Magney, Troy

“…The Orbiting Carbon Observatory-2 (OCO-2), launched in July 2014, is capable of measuring Solar-Induced chlorophyll Fluorescence (SIF), a functional proxy for…”
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Soil moisture–atmosphere feedback dominates land carbon uptake variability by Humphrey, Vincent, Berg, Alexis, Ciais, Philippe, Gentine, Pierre, Jung, Martin, Reichstein, Markus, Seneviratne, Sonia I., Frankenberg, Christian

“…Year-to-year changes in carbon uptake by terrestrial ecosystems have an essential role in determining atmospheric carbon dioxide concentrations 1 . It remains…”
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Ambiguity in the causes for decadal trends in atmospheric methane and hydroxyl by Turner, Alexander J., Frankenberg, Christian, Wennberg, Paul O., Jacob, Daniel J.

“…Methane is the second strongest anthropogenic greenhouse gas and its atmospheric burden has more than doubled since 1850. Methane concentrations stabilized in…”
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Linking chlorophyll a fluorescence to photosynthesis for remote sensing applications: mechanisms and challenges by Porcar-Castell, Albert, Tyystjärvi, Esa, Atherton, Jon, van der Tol, Christiaan, Flexas, Jaume, Pfündel, Erhard E, Moreno, Jose, Frankenberg, Christian, Berry, Joseph A

“…We revisit the theory connecting chlorophyll a fluorescence to photosynthesis in the spatiotemporal context of remote sensing. Physical, physiological, and…”
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PhotoSpec: A new instrument to measure spatially distributed red and far-red Solar-Induced Chlorophyll Fluorescence by Grossmann, Katja, Frankenberg, Christian, Magney, Troy S., Hurlock, Stephen C., Seibt, Ulrike, Stutz, Jochen

“…Solar-Induced Chlorophyll Fluorescence (SIF) is an emission of light in the 650–850 nm spectral range from the excited state of the chlorophyll-a pigment after…”
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Toward More Accurate Modeling of Canopy Radiative Transfer and Leaf Electron Transport in Land Surface Modeling by Wang, Yujie, Frankenberg, Christian

“…Modeling leaf photosynthesis is essential for quantifying the carbon, water, and energy fluxes of the terrestrial biosphere. However, due to the lack of…”
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Remote sensing of solar-induced chlorophyll fluorescence (SIF) in vegetation: 50 years of progress by Mohammed, Gina H., Colombo, Roberto, Middleton, Elizabeth M., Rascher, Uwe, van der Tol, Christiaan, Nedbal, Ladislav, Goulas, Yves, Pérez-Priego, Oscar, Damm, Alexander, Meroni, Michele, Joiner, Joanna, Cogliati, Sergio, Verhoef, Wouter, Malenovský, Zbyněk, Gastellu-Etchegorry, Jean-Philippe, Miller, John R., Guanter, Luis, Moreno, Jose, Moya, Ismael, Berry, Joseph A., Frankenberg, Christian, Zarco-Tejada, Pablo J.

“…Remote sensing of solar-induced chlorophyll fluorescence (SIF) is a rapidly advancing front in terrestrial vegetation science, with emerging capability in…”
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Observing terrestrial ecosystems and the carbon cycle from space by Schimel, David, Pavlick, Ryan, Fisher, Joshua B, Asner, Gregory P, Saatchi, Sassan, Townsend, Philip, Miller, Charles, Frankenberg, Christian, Hibbard, Kathy, Cox, Peter

“…Terrestrial ecosystem and carbon cycle feedbacks will significantly impact future climate, but their responses are highly uncertain. Models and tipping point…”
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Assessing the benefit of satellite-based Solar-Induced Chlorophyll Fluorescence in crop yield prediction by Peng, Bin, Guan, Kaiyu, Zhou, Wang, Jiang, Chongya, Frankenberg, Christian, Sun, Ying, He, Liyin, Köhler, Philipp

“…•High-resolution SIF from TROPOMI and gap-filled OCO-2 were used for crop yield prediction.•Performances of using SIF, VIs, and LST in crop yield prediction…”
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Contrasting carbon cycle responses of the tropical continents to the 2015–2016 El Niño by Liu, Junjie, Bowman, Kevin W., Schimel, David S., Parazoo, Nicolas C., Jiang, Zhe, Lee, Meemong, Bloom, A. Anthony, Wunch, Debra, Frankenberg, Christian, Sun, Ying, O’Dell, Christopher W., Gurney, Kevin R., Menemenlis, Dimitris, Gierach, Michelle, Crisp, David, Eldering, Annmarie

“…The 2015-2016 El Niño led to historically high temperatures and low precipitation over the tropics, while the growth rate of atmospheric carbon dioxide (CO )…”
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Application of satellite solar-induced chlorophyll fluorescence to understanding large-scale variations in vegetation phenology and function over northern high latitude forests by Jeong, Su-Jong, Schimel, David, Frankenberg, Christian, Drewry, Darren T., Fisher, Joshua B., Verma, Manish, Berry, Joseph A., Lee, Jung-Eun, Joiner, Joanna

“…This study evaluates the large-scale seasonal phenology and physiology of vegetation over northern high latitude forests (40°–55°N) during spring and fall by…”
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First Light Demonstration of Red Solar Induced Fluorescence for Harmful Algal Bloom Monitoring by Luis, Kelly, Köhler, Philipp, Frankenberg, Christian, Gierach, Michelle

“…The risks harmful algal blooms (HAB) pose to aquatic ecosystems, public health, and coastal economies necessitate supplementation of current observation…”
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Global and time-resolved monitoring of crop photosynthesis with chlorophyll fluorescence by Guanter, Luis, Zhang, Yongguang, Jung, Martin, Joiner, Joanna, Voigt, Maximilian, Berry, Joseph A, Frankenberg, Christian, Huete, Alfredo R, Zarco-Tejada, Pablo, Lee, Jung-Eun, Moran, M Susan, Ponce-Campos, Guillermo, Beer, Christian, Camps-Valls, Gustavo, Buchmann, Nina, Gianelle, Damiano, Klumpp, Katja, Cescatti, Alessandro, Baker, John M, Griffis, Timothy J

“…Photosynthesis is the process by which plants harvest sunlight to produce sugars from carbon dioxide and water. It is the primary source of energy for all life…”
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Observed Impacts of COVID‐19 on Urban CO2 Emissions by Turner, Alexander J., Kim, Jinsol, Fitzmaurice, Helen, Newman, Catherine, Worthington, Kevin, Chan, Katherine, Wooldridge, Paul J., Köehler, Philipp, Frankenberg, Christian, Cohen, Ronald C.

“…Governments restricted mobility and effectively shuttered much of the global economy in response to the COVID‐19 pandemic. Six San Francisco Bay Area counties…”
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Forest productivity and water stress in Amazonia: observations from GOSAT chlorophyll fluorescence by Lee, Jung-Eun, Frankenberg, Christian, van der Tol, Christiaan, Berry, Joseph A., Guanter, Luis, Boyce, C. Kevin, Fisher, Joshua B., Morrow, Eric, Worden, John R., Asefi, Salvi, Badgley, Grayson, Saatchi, Sassan

“…It is unclear to what extent seasonal water stress impacts on plant productivity over Amazonia. Using new Greenhouse gases Observing SATellite (GOSAT)…”
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Evaluation and mechanism exploration of the diurnal hysteresis of ecosystem fluxes by Lin, Changjie, Gentine, Pierre, Frankenberg, Christian, Zhou, Sha, Kennedy, Daniel, Li, Xi

“…•We examined ecosystem diel hysteresis using eddy-covariance data.•Significant lower GPP and higher ET are found in the afternoon.•This afternoon GPP drop is…”
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Widespread and complex drought effects on vegetation physiology inferred from space by Li, Wantong, Pacheco-Labrador, Javier, Migliavacca, Mirco, Miralles, Diego, Hoek van Dijke, Anne, Reichstein, Markus, Forkel, Matthias, Zhang, Weijie, Frankenberg, Christian, Panwar, Annu, Zhang, Qian, Weber, Ulrich, Gentine, Pierre, Orth, Rene

“…The response of vegetation physiology to drought at large spatial scales is poorly understood due to a lack of direct observations. Here, we study vegetation…”
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OCO-3 early mission operations and initial (vEarly) XCO2 and SIF retrievals by Taylor, Thomas E., Eldering, Annmarie, Merrelli, Aronne, Kiel, Matthäus, Somkuti, Peter, Cheng, Cecilia, Rosenberg, Robert, Fisher, Brendan, Crisp, David, Basilio, Ralph, Bennett, Matthew, Cervantes, Daniel, Chang, Albert, Dang, Lan, Frankenberg, Christian, Haemmerle, Vance R., Keller, Graziela R., Kurosu, Thomas, Laughner, Joshua L., Lee, Richard, Marchetti, Yuliya, Nelson, Robert R., O'Dell, Christopher W., Osterman, Gregory, Pavlick, Ryan, Roehl, Coleen, Schneider, Robert, Spiers, Gary, To, Cathy, Wells, Christopher, Wennberg, Paul O., Yelamanchili, Amruta, Yu, Shanshan

“…NASA's Orbiting Carbon Observatory-3 (OCO-3) was installed on the International Space Station (ISS) on 10 May 2019. OCO-3 combines the flight spare…”
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Connecting active to passive fluorescence with photosynthesis: a method for evaluating remote sensing measurements of Chl fluorescence by Magney, Troy S., Frankenberg, Christian, Fisher, Joshua B., Sun, Ying, North, Gretchen B., Davis, Thomas S., Kornfeld, Ari, Siebke, Katharina

“…Recent advances in the retrieval of Chl fluorescence from space using passive methods (solar-induced Chl fluorescence, SIF) promise improved mapping of plant…”
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