README.md

---
title: FVCOM Explorer
emoji: 🌊
colorFrom: blue
colorTo: indigo
sdk: docker
app_port: 7860
pinned: false
license: mit
---

# FVCOM GOM3 Explorer

Interactive [Panel](https://panel.holoviz.org) dashboard for the UMASSD FVCOM
Gulf of Maine (GOM3) ocean hindcast.

The data is read on demand — without copying — from a cloud-optimized
[Icechunk](https://icechunk.io) store on AWS S3, discovered through a STAC
GeoParquet catalog. The app renders the triangular unstructured mesh with
`hvplot.trimesh` + datashader, and overlays currents as curly vectors or arrows.

- **Variables:** temperature, salinity, surface elevation, current speed
- **Controls:** time, sigma level, palette, color limits, current overlays
- **Source:** `s3://umassd-fvcom/gom3/hindcast/` (anonymous S3 access)

Built from [`dashboard_fvcom_v3.py`](https://github.com/OpenScienceComputing/umassd-fvcom).