What I do
Algorithms & HPC
O(n²·⁵) Kronecker methods, sparse×sparse covariance ops, and PSD kernels for large inverse problems.
Bayesian/Geostatistical Inversions
End-to-end HQH^T operators, UQ, and scalable inference used in operational pipelines and data products.
Products & Programs
TerraOorja mobile app, LA Megacity dashboard, and NASA GES DISC data products; PI/Co-I on multi-agency grants.
Featured
LA Megacity GHG Dashboard
Interactive dashboard integrating satellite, in-situ, and model products for Los Angeles greenhouse gas monitoring.
Open dashboard Details May load slowly on free-tier hosting.
TerraOorja â€" Decarbonization App
Agent-based modeling for household/business decarbonization with policy scenarios and CAPEX analysis.
App Store Google Play DetailsNASA Data Products
OCO-2 Gridded XCOâ‚‚ (Level 4)
Bias-corrected daily COâ‚‚ data powering inversion and climate research.
DOI: 10.5067/582L7HTJ343NMulti-Instrument Fused XCOâ‚‚ (L4)
Cross-platform data fusion with consistent bias correction.
DOI: 10.5067/ZS346LH1NTISOCO-2 Gridded XCOâ‚‚ & SIF (Level 3)
Daily L3 fields combining XCOâ‚‚ and solar-induced fluorescence.
DOI: 10.5067/0QR48EPN1BVRSelected Algorithms
O(n²·âµ) Kronecker Methods
Reduces dominant multiplies in large inversions via Kronecker structure; demonstrated for continental COâ‚‚ fluxes.
Paper (GMD 2013) · OverviewSparse×Sparse Covariance Ops
Parallel, memory-aware multiplication tailored to inversion covariances/Jacobians; boosts throughput in pipelines.
Preprint (GMD Discuss. 2016) · OverviewPublications
Selected works across GMD, ERL, ACP, PNAS, Nature, and more.
Grants & Program Management
PI/Co-I on multi-agency programs spanning NASA, NIST, DOE, and NSF.