Publications
Organized by contribution focus. Use the search or quick filters to find a paper fast.
Algorithm-Focused
Improving computational efficiency in large linear inverse problems: an example from carbon dioxide flux estimation
Geosci. Model Dev., 2013O(n²·⁵) methods for Kronecker-structured matrices and UQ.
Improving the computational efficiency of sparse matrix multiplication in linear atmospheric inverse problems
GMD Discuss., 2016Sparse×sparse covariance operations; basis of NOAA CarbonTracker-Lagrange integration.
A sparse reconstruction method for the estimation of multi-resolution emission fields via atmospheric inversion
Geosci. Model Dev., 2015Multiresolution sparse reconstruction for inverse problems.
Mapping of satellite Earth observations using moving window block kriging
Geosci. Model Dev., 2015Efficient kriging for satellite interpolation with moving windows.
Method-Focused
Metrics for evaluating the quality in linear atmospheric inverse problems: a case study of a trace gas inversion
Geosci. Model Dev., 2023Comprehensive evaluation framework for inverse systems.
Toward reliable ensemble Kalman filter estimates of CO₂ fluxes
J. Geophys. Res., 2012Improved EnKF practice for carbon flux estimation.
A multiresolution spatial parameterization for the estimation of fossil-fuel CO₂ emissions via atmospheric inversions
Geosci. Model Dev., 2014Spatial parameterization for multi-scale emissions.
Functional analysis of variance (ANOVA) for carbon flux estimates from remote sensing data
Geosci. Model Dev., 2024Spatiotemporal ANOVA with uncertainty partitioning across inversions.
Synthesis of methane observations across scales: strategies for deploying a multitiered observing network
Geophys. Res. Lett., 2020Integrated observing system design for methane.
Science-Focused
A declining trend of methane emissions in the Los Angeles basin from 2015 to 2020
Environ. Res. Lett., 2023LA-basin top-down trend analysis showing ~7% decline (2015-2020).
Strong methane point sources contribute a disproportionate fraction of total emissions across multiple U.S. basins
PNAS, 2022Super-emitters dominate basin-total emissions across U.S. basins.
California’s methane super-emitters
Nature, 2019Identification/attribution of largest point sources in California.
Spatio-temporally resolved methane fluxes from the Los Angeles Megacity
JGR Atmos., 2019High-resolution flux maps across the LA basin.
Large and seasonally varying biospheric CO₂ fluxes in the Los Angeles megacity revealed by atmospheric radiocarbon
PNAS, 2020Radiocarbon constraints on urban biospheric CO₂ in LA.
Methane emissions from underground gas storage in California
Environ. Res. Lett., 2020UGS system methane quantification in CA.
Atmospheric methane emissions correlate with natural gas consumption in Los Angeles
Geophys. Res. Lett., 2019Links sectoral gas use with atmospheric CH₄ in LA.