OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence
Abstract
Quantifying gross primary production (GPP) remains a major challenge in global carbon cycle research. Spaceborne monitoring of solar-induced chlorophyll fluorescence (SIF), an integrative photosynthetic signal of molecular origin, can assist in terrestrial GPP monitoring. However, the extent to which SIF tracks spatiotemporal variations in GPP remains unresolved. Orbiting Carbon Observatory-2 (OCO-2)’s SIF data acquisition and fine spatial resolution permit direct validation against ground and airborne observations. Empirical orthogonal function analysis shows consistent spatiotemporal correspondence between OCO-2 SIF and GPP globally. A linear SIF-GPP relationship is also obtained at eddy-flux sites covering diverse biomes, setting the stage for future investigations of the robustness of such a relationship across more biomes. In conclusion, our findings support the central importance of high-quality satellite SIF for studying terrestrial carbon cycle dynamics.
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Biological and Environmental Research (BER); National Aeronautics and Space Administration (NASA); European Union (EU)
- OSTI Identifier:
- 1434373
- Alternate Identifier(s):
- OSTI ID: 1399421
- Grant/Contract Number:
- award310104; AC05-00OR22725; 1288039; 640176
- Resource Type:
- Published Article
- Journal Name:
- Science
- Additional Journal Information:
- Journal Name: Science Journal Volume: 358 Journal Issue: 6360; Journal ID: ISSN 0036-8075
- Publisher:
- American Association for the Advancement of Science (AAAS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 54 ENVIRONMENTAL SCIENCES; 60 APPLIED LIFE SCIENCES
Citation Formats
Sun, Y., Frankenberg, C., Wood, J. D., Schimel, D. S., Jung, M., Guanter, L., Drewry, D. T., Verma, M., Porcar-Castell, A., Griffis, T. J., Gu, L., Magney, T. S., Köhler, P., Evans, B., and Yuen, K. OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence. United States: N. p., 2017.
Web. doi:10.1126/science.aam5747.
Sun, Y., Frankenberg, C., Wood, J. D., Schimel, D. S., Jung, M., Guanter, L., Drewry, D. T., Verma, M., Porcar-Castell, A., Griffis, T. J., Gu, L., Magney, T. S., Köhler, P., Evans, B., & Yuen, K. OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence. United States. https://doi.org/10.1126/science.aam5747
Sun, Y., Frankenberg, C., Wood, J. D., Schimel, D. S., Jung, M., Guanter, L., Drewry, D. T., Verma, M., Porcar-Castell, A., Griffis, T. J., Gu, L., Magney, T. S., Köhler, P., Evans, B., and Yuen, K. Thu .
"OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence". United States. https://doi.org/10.1126/science.aam5747.
@article{osti_1434373,
title = {OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence},
author = {Sun, Y. and Frankenberg, C. and Wood, J. D. and Schimel, D. S. and Jung, M. and Guanter, L. and Drewry, D. T. and Verma, M. and Porcar-Castell, A. and Griffis, T. J. and Gu, L. and Magney, T. S. and Köhler, P. and Evans, B. and Yuen, K.},
abstractNote = {Quantifying gross primary production (GPP) remains a major challenge in global carbon cycle research. Spaceborne monitoring of solar-induced chlorophyll fluorescence (SIF), an integrative photosynthetic signal of molecular origin, can assist in terrestrial GPP monitoring. However, the extent to which SIF tracks spatiotemporal variations in GPP remains unresolved. Orbiting Carbon Observatory-2 (OCO-2)’s SIF data acquisition and fine spatial resolution permit direct validation against ground and airborne observations. Empirical orthogonal function analysis shows consistent spatiotemporal correspondence between OCO-2 SIF and GPP globally. A linear SIF-GPP relationship is also obtained at eddy-flux sites covering diverse biomes, setting the stage for future investigations of the robustness of such a relationship across more biomes. In conclusion, our findings support the central importance of high-quality satellite SIF for studying terrestrial carbon cycle dynamics.},
doi = {10.1126/science.aam5747},
journal = {Science},
number = 6360,
volume = 358,
place = {United States},
year = {Thu Oct 12 00:00:00 EDT 2017},
month = {Thu Oct 12 00:00:00 EDT 2017}
}
https://doi.org/10.1126/science.aam5747
Web of Science
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Monthly gridded data product of northern wetland methane emissions based on upscaling eddy covariance observations
journal, January 2019
- Peltola, Olli; Vesala, Timo; Gao, Yao
- Earth System Science Data, Vol. 11, Issue 3
A Lagrangian approach towards extracting signals of urban CO2 emissions from satellite observations of atmospheric column CO2 (XCO2): X-Stochastic Time-Inverted Lagrangian Transport model (“X-STILT v1”)
journal, January 2018
- Wu, Dien; Lin, John C.; Fasoli, Benjamin
- Geoscientific Model Development, Vol. 11, Issue 12