Viewing profile — carstonh

This map shows population of each US county over time, from the US census. It also shows the US rail network over time, with data from Jeremy Atack at Vanderbilt. I think it's inte…

I recently moved to San Francisco & am fascinated by the microclimates. This tool takes raw data from the GOES satellite, detects areas matching fog, then intersects this with diff…

Seeing the same. Tried to log a support ticket at https://support.github.com/ , but that's down too :)

Started seeing issues when trying to update issues through the GitHub web interface. It appears that the service behind their graphQL endpoint (https://github.com/_graphql) is brok…

There are many times I find some government data in shapefile (.shp) format but want to use the attributes inside for analysis in tabular format. It's always a pain to open this in…

Based on my reading of the GeoParquet spec, the main difference is that geometries are stored as WKB using Parquet's byte array type. Byte arrays can be delta-encoded. There is als…

Here's an example building on @maxxen's work - because DuckDB (+spatial extension) can compile to Wasm, I built an in-browser Shapefile to CSV converter tool: https://www.honeycomb…

The big idea is to use Uber's H3 spatial index to harmonize spatial data from different sources, then display it on a map and allow for interactive aggregation. Everything is done …