Analysis & tools
Central Himalaya — experimental facet watch analyses
2,576 computed steep-glacier faces across the central Himalaya (82–89°E), colored by their 2026-season morning-radar anomaly ranked against 2020–25 history, with the validated detector run on the worst-ranked faces. Built by GEE batch export; a rank against the past, not a prediction.
/himalaya-facet-watch/Langtang facet watch — live status map
580 computed steep-glacier faces in the Langtang region, each colored by its recent morning-radar anomaly ranked against 2020–25 history. Snapshot dashboard built on the SAR precursor analysis; a rank against the past, not a prediction.
/langtang-facet-watch/Nepal glacier collapse — SAR precursor analysis
Six years of Sentinel-1 radar over the Langtang Lirung face that collapsed on 26 Aug 2026: a morning-pass melt anomaly visible four months out, a 45-face false-alarm test, and an offset-tracking null. One page, plain-language walkthrough with expandable technical panels.
/langtang-sar-precursors/Analysis of EQ Damage Products: Presentation to A&A Cell 11 Aug 2026
Satellite building-damage products from the M7.5 Venezuela earthquake, evaluated against expert references: what arrived, what the products can and cannot support, and what actually works.
/slides/aa-cell-briefing-public/Damage evaluation — A&A Cell briefingPassphrase
Five-slide briefing for the A&A Cell, 11 August 2026: the headline results of the damage product evaluation, with the full deck as backup slides.
/slides/aa-cell-briefing/Damage evaluation — full results deckPassphrase
Six rapid building-damage products released after the M7.5 Venezuela earthquake, scored against three reference datasets chosen for their non-overlapping blind spots. The complete results deck.
/slides/damage-evaluation/Damage evaluation — technical briefPassphrase
The condensed companion to the write-up: the three questions a coordinator would ask, answered with the headline figures, plus the full method appendix.
/brief/Damage evaluation — technical write-upPassphrase
The manuscript behind the deck: matching basis, per-product scores, and the negative results that shaped the method.
/manuscript/Vantor Open Data activation tracker
Which disasters Vantor (formerly Maxar) has released open imagery for, and how many pre- and post-event images each activation has. Rebuilt daily from the public STAC catalog, with a live-drift check on every page load.
/vantor-activations/Damage exposure viewer — multi-eventExternal
The multi-event viewer: satellite building-damage sources compared on one exposure base, with coverage-aware admin aggregation and spreadsheet export. Currently the Venezuela (M7.5) and Colombia (M7.4) earthquakes.
azurestaticapps.net ↗Geospatial impact viewer (legacy)External
The original single-event (Venezuela) viewer on Azure App Service — superseded by the multi-event viewer above; retained during the transition.
azurewebsites.net ↗