Research

Broadly, my interests are in physical oceanography and biogeochemistry. I use statistical methods paired with models, observations, and theory to gain dynamical information about the upper and coastal ocean.


Convergences & Surface Drifter Statistics

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Figure courtesy of CARTHE

Drifters are often entrained into fronts or remain in long-lived eddies for extended periods of time. These drifter trapping features prevent the floats from adequately sampling the entire domain, and I am interested in quantifying statistical biases due to this sampling pattern.

Publications: 

Pearson, J., Fox-Kemper, B., Barkan, R., Choi, J., Bracco, A., & McWilliams, J. (2019). Impacts of convergence on structure functions from surface drifters in the Gulf of Mexico. Journal of Physical Oceanography., 0, 0
https://doi.org/10.1016/j.physd.2017.02.004

Pearson, J., Fox-Kemper, Pearson, B., Huntley, H., Chang, H., Kirwan, D.,(In Prep). Observed biases in surfacedrifter statistics in the Gulf of Mexico.

Chang, H., Huntley, H., Kirwan, D., Jr., Carlson, D., Mensa, J., Mehta, S., Novelli, G., Ozgokomen, T., Fox-Kemper,B., Pearson, B.,Pearson, J., Harcourt, R.(In Prep). Small-scale dispersion observations in the presence of Langmuir circulation,

 


Structure Function & Spectral Theory

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Upper ocean statistics are powerful metrics useful for classifying turbulent regimes. I develop structure function and spectral theories for anisotropic turbulence as well as reactive tracers.

Publications: 

Pearson, B., Pearson, J., Fox-Kemper, B., (In Prep). Relation Between Structure Functions and Cascade Rates in AnisotropicTwo-Dimensional Turbulence.

Pearson, B., Pearson, J., Fox-Kemper, B., (In Prep). Structure Functions in Quasigeostrophic Turbulence.

Pearson, J., Fox-Kemper, B., Freilich, M., Mahadevan, A., (In Prep). Dynamical information from spectra of passive-reactive tracers in 2D & QG turbulence.

Pearson, J., Fox-Kemper, B., Freilich, M., Mahadevan, A., (In Prep). Blended Second and Third Order Structure function laws for passive-reactive tracers in 3D turbulence.



Eulerian & Lagrangian Data Assimilation

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Figure courtesy of transportation.gov

I incorporate both Eulerian and Lagrangian traffic flow observations using data assimilation schemes to improve macroscopic traffic models and estimate difficult parameters to observe.

Publications: 

Xia, C., Cochrane, C., DeGuire, J., Fan, G., Holmes, E., McGuirl, M., Murphy, P., Palmer, J., Carter, P., Slivinski, L., & Sandstede, B. (2017). Assimilating Eulerian and Lagrangian data in traffic-flow models. Physica D: Nonlinear Phenomena, 346, 59-72.
https://doi.org/10.1016/j.physd.2017.02.004