Sara Knox
Research Area
Education
University of California, Berkeley, 2016, PhD
Carleton University, MSc
McGill University, BSc
About
Canada Research Chair in Eco-Meteorology
I study the exchange of carbon, water and energy between ecosystems and the atmosphere. I investigate how land atmosphere exchanges of greenhouse gas fluxes respond to a changing climate and disturbances, and how we can modify land management practices for climate change mitigation and adaptation. I also seek to understand how ecosystem responses to global change can feedback to slow or accelerate future climate change. I combine micrometeorological measurements with remote sensing and modelling to understand soil-plant-atmosphere interactions across a range of spatial and temporal scales. This research is done in collaboration with a broad group of researchers and institutions to help inform and advance climate policy.
Teaching
Publications
2023
Quan, N. Lee, S. C. Chopra, C. Nesic, Z. Porto, P. Pow, P. Jassal, R. S. Smukler, S. Krzic, M. Knox, S. H. and T. A. Black. 2023. Estimating net carbon and greenhouse gas balances of potato and pea crops on a conventional farm in western Canada. Journal of Geophysical Research: Biogeosciences 128 (3): e2022JG007113.
Russell, S. Windham–Myers, L. Stuart–Haëntjens, E. J. Bergamaschi, B. A. Anderson, F. Oikawa, P. and S. H. Knox. 2023. Increased salinity decreases annual gross primary productivity at a Northern California brackish tidal marsh. Environmental Research Letters 18: 034045
Masahito, U. Knox, S. H. Delwiche, K. B. Bansal, S. Riley, W. J. Baldocchi, D. Hirano, T. McNicol, G. Schafer, K. Windham-Myers, L. Poulter, B. Jackson, R. B. Chang, K. Y. Chen, J. Chu, H. Desai, A. R. Gogo, S. Iwata, H. Kang, M. Mammarella, I. Peichl, M. Sonnentag, O. Tuittila, E-S. Ryu, Y. Euskirchen, E. S. Göckede, M. Jacotot, A. Nilsson, M. B. and T. Sachs. 2023. Modeled production, oxidation and transport processes of wetland methane emissions in temperate, boreal, and Arctic regions. Global Change Biology 29 (8): 2313–2334.
2022
Ouyang, Z. R. Jackson, G. McNicol, E. Fluet–Chouinard, B. Runkle, D. Papale, Knox, S. H. Cooley, S. Delwiche, K. B. Fehron, S. Irvin, J. A. Malhotra, A. Muddasir, M. Sabbatini, S. Alberto, M. C. Cescatti, S. A. Chen, C-L. Dong, J. Fong, B. N. Guo, H. Hao, L. Iwata, H. Jia, Q. Ju, W. Kang, M. Li, H. Kim, J. Reba, M. L. Nayak, A. K. Roberti, D. R. Ryu, Y. Swain, C. K. Tsuang, B. Xiao, X. Yuan, W. Zhang, G. and Y. Zhang. 2022. Paddy rice methane emissions across Monsoon Asia. Remote Sensing of Environment 284.
Lee, S. C. Knox, S. H. McKendry, I. and T. A. Black. 2022. Biogeochemical and biophysical responses to episodes of wildfire smoke from natural ecosystems in southwestern British Columbia, Canada. Atmospheric Chemistry and Physics 2 (4): 2333-2349.
2021
Zhang, Z. Poulter, B. Knox, S. Stavert, A. McNicol, G. Fluet-Chouinard, E. Feinberg, A. Zhao, Y. Bousquet, P. Canadell, J. G. Ganesan, A. Hugelius, G. Hurtt, G. Jackson, B. Patra, P. K. Saunois, M. Höglund-Isaksson, L. Huang, C. Chatterjee, A. and X. Li. 2021. Anthropogenic emission is the main contributor to the rise of atmospheric methane during 1993–2017. National Science Review 9 (5). doi: https://doi.org/10.1093/nsr/nwab200
Lee, S. C. Black, T. A. Nyberg, M. Merkens, M. Nesic, Z. Ng, D. and S. H. Knox. 2021. Biophysical impacts of historical disturbances, restoration strategies, and vegetation types in a peatland ecosystem. Journal of Geophysical Research: Biogeosciences 126 (10). doi: https://doi.org/10.1029/2021JG006532
Miller, G. J. Dronova, I. Oikawa, P. Knox, S. H. Windham-Myers, L. Shahan, J. and E. Stuart-Haëntjens. 2021. The potential of satellite remote sensing time series to uncover wetland phenology under unique challenges of tidal setting. Remote Sensing 13 (18). doi: https://doi.org/10.3390/rs13183589
Irvin, J. Zhou, S. McNicol, G. Lu, F. Liu, V. Fluet-Chouinard, E. Ouyang, Z. Knox, S. H. Lucas-Moffat, A. Trotta, C. Papale, D. Vitale, D. Mammarella, I. Alekseychik, P. Aurela, M. Avati, A. Baldocchi, D. Bansal, S. Bohrer, G. Campbell, D. I. Chen, J. Chu, H. Dalmagro, H. J. Delwiche, K. B. Desai, A. R. Euskirchen, E. Feron, S. Goeckede, M. Heimann, M. Helbig, M. Helfter, C. Hemes, K. S. Hirano, T. Iwata, H. Jurasinski, G. Kalhori, A. Kondrich, A. Lai, D. Y. Lohila, A. Malhotra, A. Merbold, L. Mitra, B. Ng, A. Nilsson, M. B. Noormets, A. Peichl, M. Rey-Sanchez, A. C. Richardson, A. D. Runkle, B. R. Schäfer, K. V. Sonnentag, O. Stuart-Haëntjens, E. Sturtevant, C. Ueyama, M. Valach, A. V. Vargas, R. Vourlitis, G. L. Ward, E. J. Wong, G. X. Zona, D. Alberto, M. C. R. Billesbach, D. P. Celis, G. Dolman, H. Friborg, T. Fuchs, K. Gogo, S. Gondwe, M. J. Goodrich, J. P. Gottschalk, P. Hörtnagl, L. Jacotot, A. Koebsch, F. Kasak, K. Maier, R. Morin, T. H. Nemitz, E. Oechel, W. C. Oikawa, P. Y. Ono, K. Sachs, T. Sakabe, A. Schuur, E. A. Shortt, R. Sullivan, R. C. Szutu, D. J. Tuittila, E. S. Varlagin, A. Verfaillie, J. G. Wille, C. Windham-Myers, L. Poulter, B. and R. B. Jackson. 2021. Gap-filling eddy covariance methane fluxes: Comparison of machine learning model predictions and uncertainties at FLUXNET-CH4 wetlands. Agriculture and Forest Meteorology 308. doi: https://doi.org/10.1016/J.AGRFORMET.2021.108528
Knox, S. H. Bansal, S. McNicol, G. Schafer, K. Sturtevant, C. Ueyama, Ma. Valach, A. C. Baldocchi, D. Delwiche, K. Desai, A. R. Euskirchen, E. Liu, J. Lohila, A. Malhotra, A. Melling, L. Riley, W. Runkle, B. R. K. Turner, J. Vargas, R. Zhu, Q. Alto, T. Fluet-Chouinard, E. Goeckede, M. Melton, J. R. Sonnentag, O. Vesala, T. Ward, E. Zhang, Z. Feron, S. Ouyang, Z. Alekseychik, P. Aurela, M. Bohrer, G. Campbell, D. I. Chen, J. Chu, H. Dalmagro, H. J. Goodrich, J. P. Gottschalk, P. Hirano, T. Iwata, H. Jurasinski, G. Kang, M. Koebsch, F. Mammarella, I. M. B. Nilsson, M. B. Ono, K. Peichl, M. Peltola, O. Ryu, Y. Sachs, T. Sakabe, A. Sparks, J. P. Tuittila, E. S. Vourlitis, G. L. Xhuan Wong, G. Windham-Myers, L. Poulter, B. and R. B. Jackson. 2021. Identifying dominant environmental predictors of freshwater wetland methane fluxes across diurnal to seasonal time scales. Global Change Biology 27(15). doi: https://doi.org/10.1111/gcb.15661
Delwiche, K. Knox, S. H. Malhotra, A. Fluet-Chouinard, E. McNicol, G. Feron, S. Ouyang, Z. Papale, D. Trotta, C. Canfora, E. Cheah, Y. W. Christianson, D. Alberto, M. C. R. Alekseychik, P. Aurela, M. Baldocchi, D. Bansal, S. Billesbach, D. P. Bohrer, G. Bracho, R. Buchmann, N. Campbell, D. I. Celis, G. Chen, J. Chu, H. Dalmagro, H. J.Dengel, S. Desai, A. R. Detto, M. Dolman, H. Eichelmann, E. Euskirchen, E. Famulari, D. Fuchs, K. Goeckede, M. Gogo, S. Gondwe, M. J. Goodrich, J. P. Gottschalk, P. Graham, S. L. Heimann, M. Helbig, M. Helfter, C. Hemes, K. S. Hirano, T. Hollinger, D. Hörtnagl, L. Iwata, H. Jacotot, A. Jurasinski, G. Kang, M. Kasak, K. King, J. Klatt, J. Koebsch, F. Krauss, K. W. Lai, D. Y. F. Lohila, A. Mammarella, I. Marchesini, L. B. Manca, G. Matthes, J. H. Maximov, T. Merbold, L. Mitra, B. Morin, T. H. Nemitz, E. Nilsson, M. B. Niu, S. Oechel, W. C. Oikawa, P. Y. Ono, K. Peichl, M. Peltola, O. Reba, M. L. Richardson, A. D. Riley, W. Runkle, B. R. K. Ryu, Y. Sachs, T. Sakabe, A. Sanchez, C. R. Schuur, E. A. K. V. R. Schäfer, K. V. R. Sonnentag, O. Sparks, J. P. Stuart-Haëntjens, E. Sturtevant, C. Sullivan, R. C. Szutu, D. J. Thom, J. E. Torn, M. S. Tuittila, E. Turner, J. Ueyama, M. Valach, A. C. Vargas, R. Varlagin, A. Vazquez-Lule, A. Verfaillie, J. G. Vesala, T. Vourlitis, G. L. Ward, E. J. Wille, C. Wohlfahrt, G. Wong, G. X. Zhang, Z. Zona, D. Windham-Myers, L. Poulter, B. and R. B. Jackson. 2021. FLUXNET-CH4: A global, multi-ecosystem dataset and analysis of methane seasonality from freshwater wetlands. Earth System Science Data Discussions 13(7): 3607-3689. doi: https://doi.org/10.5194/essd-13-3607-2021.
2020
Feagin, R. A., Forbich, I. Huff, T. P. Barr, J. G. Ruiz-Plancarte, J. Fuentes, J. D. Najjar, R. G. Vargas, R. Vázquez-Lule, A. Windham-Myers, L. Kroeger, K. D. Ward, E. J. Moore, G. W. Leclerc, M. Krauss, K. W. Stagg, C. L. Alber, M. Knox, S. H. Schäfer, K. V. R. Bianchi, T. S. Hutchings, J. A. Nahrawi, H. Noormets, A. Mitra, B. Jaimes, A. Hinson, A. L. Bergamaschi, B. King, J. S. and G. Miao. 2020. Tidal Wetland Gross Primary Production Across the Continental United States, 2000–2019. Global Biogeochemical Cycles 34(2). doi: https://doi.org/10.1029/2019GB006349
2019
Knox, S. H., Jackson, R. B., Poulter, B., McNicol, G., Fluet-Chouinard, E., Zhang, Z., Hugelius, G., Bousquet, P., Canadell, J. G., Saunois, M. Papale, P. Chu, H. Keenan, T. F. Baldocchi, D. Torn, M. S. Mammarella, I. Trotta, C. Aurela, M. Bohrer, G. Campbell, D. I. Cescatti, A. Chamberlain, S. Chen, J. Chen, W. Dengel, S. Desai, A. R. Euskirchen, E. Friborg, T. Gasbarra, D. Goded, I. Goeckede, M. Heimann, M. Helbig, M. Hirano, T. Hollinger, D. Y. Iwata, H. Kang, M. Klatt, J. Krauss, K. W. Kutzbach, L. Lohila, A. Mitra, B. Morin, T. H. Nilsson, M. B. Niu, S. Noormets, A. Oechel, W. C. Peichl, M. Peltola, O. Reba, M. L. Richardson, A. D. Runkle, B. R. K. Ryu, Y. Sachs, T. Schäfer, K. V. R. Schmid, H. P. Shurpali, N. Sonnentag, O. Tang, A. C. I. Ueyama, M. Vargas, R. Vesala, T. Ward, E. J. Windham-Myers, L. Wohlfahrt, G. and Zona, D. 2019. FLUXNET-CH4 Synthesis Activity: Objectives, Observations, and Future Directions. Bulletin of the American Meteorological Society 100(12): 2607–2632. doi: https://doi.org/10.1175/BAMS-D-18-0268.1
Peltola, O. Vesala, T. Gao, Y. Räty, O. Pavel, A. Aurela, M. Chojnicki, B. Desai, A. R. Dolman, A. J., Euskirchen, E. S. Friborg, T. Göckede, M. Helbig, M. Humphreys, E. Jackson, R. B. Jocher, G. Joos, F. Klatt, J. Knox, S. H. Kowalska, N. Kutzbach, L. Lienert, S. Lohila, A. Mammarella, I. Nadeau, D. F. Nilsson, M. B. Oechel, W. C. Peichl, M. Pypker, T. Quinton, W. Rinne, J. Sachs, T. Samson, M. Schmid, H. P. Sonnentag, O. Wille, C. Zona, D. and T. Aalto. 2019. Monthly gridded data product of northern wetland methane emissions based on upscaling eddy covariance observations. Earth System Science Data Discussions 11(3): 1263–1289. doi: https://doi.org/10.5194/essd-11-1263-2019
Kim, Y. Johnson, M. S. Knox, S. H. Black, T. A. Dalmagro, H. J. Kang, M. Kim, J. and D. Baldocchi. 2019. Gap‐filling approaches for eddy covariance methane fluxes: A comparison of three machine learning algorithms and a traditional method with principal component analysis. Global Change Biology 26(3): 1499-1518. doi: https://doi.org/10.1111/gcb.14845
McNicol, G. Knox, S. H. Guilderson, T. P. Baldocchi, D. D. and W. L. Silver. 2019. Where old meets new: An ecosystem study of methanogenesis in a reflooded agricultural peatland. Global Change Biology 26(2): 772-785. doi: https://doi.org/10.1111/gcb.14916
