Software · science · learning
Audio software, oceanographic mapping, and tools for research and teaching.
Software & scientific visualization
Audio software and oceanographic mapping.
Live browser application
Transcript editing, signal analysis, and music production in one audio workbench.
Audio DSP · browser software · interaction designApplied work & ongoing development
3D seafloor mapping, ocean-current analysis, and scientific visualization.
Geospatial Python · 3D environments · model integration
Interactive ocean atlas
Model trajectories, rotation and stretching, with full-dimensional Tessera coastal search and a data-driven film.
HYCOM · NOAA ETOPO1 · TesseraOct 2026
Live public record
Classified LiDAR, terrain diagnostics, marine survey design and an interactive Haiti terrain mesh, with each artifact's data type, provenance and limits stated.
Oct 2026
In progress
A national atlas of observed NMTC financing and a 3D Asheville scenario connecting investment incentives, additional employment, constrained allocation and access to jobs.
Oct 2026
Live public record
A 3D urban instrument connecting mapped buildings, official City property evidence and rental scenarios. Recorded parcel information and modeled financial assumptions remain separate.
Oct 2026
Live public record
Explore deep ocean currents, Amazon waters and reefs through an interactive globe, satellite spectra and scientific maps.
Sep 2026
Live public record
An open, living book on causal inference and the logic of quantitative evidence, with a browser data lab and provenance-tracked teaching datasets.
Sep 2026
In progress
An open econometrics course connecting empirical questions, formal theory, reproducible experiments, and defensible decisions. Twelve compact chapters, three interactive investigations, and a teaching and workshop guide.
Aug 2026
Live public record
An open, executable methods library connecting estimands, derivations, software parity, diagnostics, identification boundaries, and defensible communication.
May 2026
Live public record
A teaching observatory for statistics built on every U.S. county. Scrollytelling modules walk from a single map to spatial autocorrelation, empirical-Bayes shrinkage, and a California redlining flagship, each with the live numbers and a grounded research-assistant panel.
May 2026
In progress
A planned global gridded effective-distance dataset using population grids and settlement layers. In progress with Dr. Elizaveta Gonchar; no completed public release is claimed.
May 2026
In progress
A visual textbook and workbook on statistical and econometric inference by Ian Helfrich and Elizaveta Gonchar, currently in draft.
Apr 2026
In progress
Public repository for the project-level New Markets Tax Credit panel, research pipeline, and Cesium viewer source supporting the rural-mobilization-gap paper.
Jan 2026
Live public record
Stata practice and interactive econometrics in the browser, with checked beginner lessons, data investigations and portable do-files.
Aug 2025
In progress
Python toolkit for macroeconomic research with Numba-accelerated FRED pipelines and structural-VAR scaffolding. Built for the kind of empirical macro work where the data engineering eats the analyst's day.
Jul 2025
In progress
Models for the analysis of physical and financial risks linked to geospatial climate exposures. A toolkit for combining IPCC scenario gridded data with bank-balance-sheet and insurance-portfolio exposures.
Jul 2025
Live public record
The running back-of-the-notebook archive: working LaTeX, Quarto, and Python templates for the courses I teach and tutor through. Intermediate micro and macro, econometrics, finance, math-for-econ.