Scholarship list
1–8 of 8 results
Conference presentation
Seasonality and spatial dependence of meso- and submesoscale ocean currents from satellite altimetry
Date presented 03/15/2022
American Physical Society March Meeting 2022, 03/14/2022–03/18/2022, Chicago, IL
Submesoscale flows have been seen in simulations and shipboard data to exhibit qualitative seasonal changes, consistent with submesoscale baroclinic instabilities being activated in deep winter mixed layers. To further test and understand this, we use Jason-2/OSTM satellite data to compute along-track sea surface height (SSH) spectra across the global ocean, for each calendar month. The balanced flow is modeled by a low-wavenumber plateau transitioning to a submesoscale power-law falloff. When tides are weak, we find statistically significant variation with location and season in the parameters describing balanced motion. Our model of the signal and altimeter noise produces a power-law falloff which is closer to the results of numerical models and in situ measurements as compared to prior altimetry-based studies. The power law exponent decreases in the winter and increases in the summer, and there is evidence of kinetic energy moving upwards to larger scales in the months following the month of maximum mixed layer depth. This correlates with the deepening and shoaling of the mixed layer (computed from climatology) and is consistent with shipboard ADCP data.
Conference presentation
Effective Field Theories of Axion Monodromy Inflation
Date presented 04/2017
Foundations of String Cosmology Symposium, 04/2017, Ann Arbor, MI
Conference presentation
The Effective Field Theory of Axion Monodromy Inflation
Date presented 10/2016
Field Theory Anthropics and Naturalness in Cosmology, 10/25/2016–10/28/2016, Southern Denmark University (Odense, Denmark)
Conference presentation
Coarse Grained Quantum Dynamics and Holography
Date presented 08/2016
NORDITA Program. Black Holes and Emergent Spacetime, 08/08/2016–09/02/2016, Stockholm, Sweden
Conference presentation
Metastability, Instability, and Ensemble Inequivalence in Thermal Holographic Gauge Theories
Date presented 11/02/2014
Virginia-DC-Maryland String and Particle Theory Meeting, 11/02/2014, University of Virginia (Charlottesville, VA)
Conference presentation
Effective Field Theory for Axion Monodromy
Date presented 08/22/2014
Status and Future of Inflationary Theory, 08/22/2014–08/24/2014, The Kavli Institute for Cosmological Physics (KICP) at the University of Chicago (Chicago, IL)
Conference presentation
Coarse Graining and Entanglement in Quantum Dynamics
Date presented 06/2014
Mextrings 2014, 06/09/2014–06/10/2014, Colima, Mexico
Conference presentation
Date presented 11/26/2013
String Geometry and Beyond, 11/26/2013, Texas A&M Soltis Center, San Isidro, Costa Rica