Assistant Professor
University of California, Berkeley, 2016, PhD
Carleton University, MSc
McGill University, BSc

 

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.

2018

KNOX, S. H., WINDHAM-MYERS, L., ANDERSON, F. E., STURTEVANT, C. and BERGAMASCHI, B. 2018 ‘Direct and Indirect Effects of Tides on Ecosystem‐Scale CO2 Exchange in a Brackish Tidal Marsh in Northern California’ Journal of Geophysical Research: Biogeosciences 123(3), 787-806

WINDHAM-MYERS, L., BERGAMASCHI, B., ANDERSON, F., KNOX, S. H., MILLER, R. and FUJII, R. 2018 ‘Potential for negative emissions of greenhouse gases (CO2, CH4 and N2O) through coastal peatland re-establishment: Novel insights from high frequency flux data at meter and kilometer scales’ Environmental Research Letters 13(4), 045005

EICHELMANN, E., HEMES, K. S., KNOX, S. H., OIKAWA, P. Y., CHAMBERLAIN, S. D., STURTEVANT, C., VERFAILLIE, J. and BALDOCCHI, D. D. 2018 ‘The effect of land cover type and structure on evapotranspiration from agricultural and wetland sites in the Sacramento–San Joaquin River Delta, California’ Agricultural and Forest Meteorology 256-257, 179-195  https://doi.org/10.1016/j.agrformet.2018.03.007

HEMES, K., EICHELMANN, E., CHAMBERLAIN, S., KNOX, S. H., OIKAWA, P., STURTEVANT, C., VERFAILLIE, J. and BALDOCCHI, D. D. 2018 ‘A Unique Combination of Aerodynamic and Surface Properties Contribute to Surface Cooling in Restored Wetlands of the Sacramento‐San Joaquin Delta, California’ Journal of Geophysical Research: Biogeosciences 123(7), 2072-2090  https://doi.org/10.1029/2018JG004494

HEMES, K., CHAMBERLAIN, S., EICHELMANN, E., KNOX, S. H., and BALDOCCHI, D. D. 2018 ‘A Biogeochemical Compromise: The High Methane Cost of Sequestering Carbon in Restored Wetlands’ Geophysical Research Letters 45(12), 6081-6091   https://doi.org/10.1029/2018GL077747

DEVENTER, M. J., JIAO, Y., RHEW, R. C., TURNIPSEED, A., KNOX, S. H., LEWIS, J., ANDERSON, F. and MILLER, B. 2018 ‘Ecosystem‐Scale Measurements of Methyl Halide Fluxes From a Brackish Tidal Marsh Invaded With Perennial Pepperweed (Lepidium latifolium)’ Journal of Geophysical Research: Biogeosciences 123(7), 2104-2120    https://doi.org/10.1029/2018JG004536

HOLMQUIST, J. R., WINDHAM-MYERS, L., BERNAL, B., BYRD, K., CROOKS, S., GONNEEA, M., HEROLD, N., KNOX, S. H., KROEGER, K., MCCOMBS, J., MEGONIGAL, P., MENG, L., MORRIS, J., SUTTON-GRIER, A., TROXLER, T. and WELLER, D. 2018 ‘Uncertainty in United States coastal wetland greenhouse gas inventorying’ Environmental Research Letters 13, 115005

 

2017

KNOX, S. H., DRONOVA, I., STURTEVANT, C., OIKAWA, P. Y., MATTHES, J. H., VERFAILLIE, J. and BALDOCCHI, D. D. 2017 ‘Using digital camera and Landsat imagery with eddy covariance data to model gross primary production in restored wetlands’ Agricultural and Forest Meteorology 237-238, 233-245  https://doi.org/10.1016/j.agrformet.2017.02.020

MCNICOL, G., STURTEVANT, C. S., KNOX, S. H., DRONOVA, I., BALDOCCHI, D. D. and SILVER, W. L. 2017 ‘Effects of seasonality, transport pathway, and spatial structure on greenhouse gas fluxes in a restored wetland’ Global Change Biology 23(7), 2768-2782  doi: 10.1111/gcb.13580

OIKAWA, P. Y., JENERETTE, G. D., KNOX, S. H., STURTEVANT, C., VERFAILLIE, J., DRONOVA, I., POINDEXTER, C. M., EICHELMANN, E. and BALDOCCHI, D. D. 2017 ‘Evaluation of a hierarchy of models reveals importance of substrate limitation for predicting carbon dioxide and methane exchange in restored wetlands’ Journal of Geophysical Research: Biogeosciences 122(1), 145-167   https://doi.org/10.1002/2016JG003438

OIKAWA, P. Y., STURTEVANT, C. S., KNOX, S. H., VERFAILLIE, J., HUANG, Y. W.  and BALDOCCHI, D. D. 2017 ‘Revisiting the partitioning of net ecosystem exchange of CO2 into photosynthesis and respiration with simultaneous flux measurements of 13CO2 and CO2, soil respiration and a biophysical model, CANVEG’ Agricultural and Forest Meteorology 234-235, 149-163   https://doi.org/10.1016/j.agrformet.2016.12.016

XIN, F., XIAO, X. M., ZHAO, B. I. N., MIYATA, A., BALDOCCHI, D., KNOX, S. H., SHIM, K., CHEN, B., LI, X., WANG, J., DONG, J. and BIRADAR, C. 2017 ‘Modeling gross primary production of paddy rice cropland through analyses of data from CO2 eddy flux tower sites and MODIS images’ Remote Sensing of Environment 190, 42-55  https://doi.org/10.1016/j.rse.2016.11.025

 

2016

POINDEXTER, C. M., BALDOCCHI, D. D., MATTHES, J. H., KNOX, S. H. and VARIANO, E. A. 2016 ‘The contribution of an overlooked transport process to a wetland’s methane emissions’ Geophysical Research Letters 43(12), 6276-6284    https://doi.org/10.1002/2016GL068782

BALDOCCHI, D., KNOX, S. H., DRONOVA, I., VERFAILLIE, J., OIKAWA, P., STURTEVANT, C., MATTHES, J. H. and DETTO, M. 2016 ‘The impact of expanding flooded land area on the annual evaporation of rice’ Agricultural and Forest Meteorology 223, 181-193

KNOX, S. H., MATTHES, J. H., STURTEVANT, C., OIKAWA, P. Y., VERFAILLIE, J. and BALDOCCHI, D. 2016 ‘Biophysical controls on interannual variability in ecosystem‐scale CO2 and CH4 exchange in a California rice paddy’ Journal of Geophysical Research: Biogeosciences 121(3), 978-1001   https://doi.org/10.1002/2015JG003247

ANDERSON, F. E., BERGAMASCHI, B., STURTEVANT, C., KNOX, S. H., HASTINGS, L., WINDHAM-MYERS, L., DETTO, M., HESTIR, E. L., DREXLER, J., MILLER, R. L., MATTHES, J. H., VERFAILLIE, J., BALDOCCHI, D., SNYDER, R. L. and FUJII, R. 2016 ‘Variation of energy and carbon fluxes from a restored temperate freshwater wetland and implications for carbon market verification protocols’ Journal of Geophysical Research: Biogeosciences 121(3), 777-795   https://doi.org/10.1002/2015JG003083

STURTEVANT, C., RUDDELL, B. L., KNOX, S. H., VERFAILLIE, J., MATTHES, J. H., OIKAWA, P. Y. and BALDOCCHI, D. 2016 ‘Identifying scale‐emergent, nonlinear, asynchronous processes of wetland methane exchange’ Journal of Geophysical Research: Biogeosciences 121(1), 188-204   https://doi.org/10.1002/2015JG003054

 

2015

MATTHES, J. H., KNOX, S. H., STURTEVANT, C., SONNENTAG, O., VERFAILLIE, J. and BALDOCCHI, D. 2015 ‘Predicting landscape-scale CO2 flux at a pasture and rice paddy with long-term hyperspectral canopy reflectance measurements’ Biogeosciences 12(15), 4577-4594   https://doi.org/10.5194/bg-12-4577-2015

KNOX, S. H., STURTEVANT, C., MATTHES, J. H., KOTEEN, L., VERFAILLIE, J. and BALDOCCHI, D. 2015 ‘Agricultural peatland restoration: effects of land‐use change on greenhouse gas (CO2 and CH4) fluxes in the Sacramento‐San Joaquin Delta’ Global Change Biology 21(2), 750-765   https://doi.org/10.1111/gcb.12745

BARAER, M., MCKENZIE, J., MARK, B., GORDON, R., BURY, J., CONDOM, T., GOMEZ, J., KNOX, S. H. and FORTNER, S. 2015 ‘Contribution of groundwater to the outflow from ungauged glacierized catchments: a multi‐site study in the tropical Cordillera Blanca, Peru’ Hydrological Processes 29(11), 2561-2581  https://doi.org/10.1002/hyp.10386

 

2014

MATTHES, J. H., STURTEVANT, C., VERFAILLIE, J., KNOX, S. H. and BALDOCCHI, D. 2014 ‘Parsing the variability in CH4 flux at a spatially heterogeneous wetland: Integrating multiple eddy covariance towers with high‐resolution flux footprint analysis’ Journal of Geophysical Research: Biogeosciences 119(7), 1322-1339   https://doi.org/10.1002/2014JG002642

 

Winter 2019

GEOB300 Microscale Weather and Climate Sections

Meteorology and climatology at the micro-, local, and meso-scales. Interactions between land surfaces and atmosphere. Basics of atmospheric turbulence and transfer processes. Microclimates on scales of a leaf to those of a large valley.

Winter 2019

GEOB401 Urban Meteorology Sections

The impact of urbanization upon atmospheric processes and climates. The energy and water balances of cities. Meteorological effects (urban heat island, precipitation modification, etc.) and their significance. Models of the urban atmosphere.