Integrated App
Explore decades of fish larvae and oceanographic bottle data together — filter by taxa, depth and season over dynamic hexagon maps, time series and depth profiles.
RShinyDuckDBH3MapLibre
From ship to screen
Since 1949, CalCOFI cruises have sampled the California Current — one of the longest-running ocean observing programs anywhere. CalCOFI.io turns those observations into an open data ecosystem: reproducible workflows load each dataset into a versioned integrated database, which powers interactive apps, a browser SQL playground, an API and an R package — for scientists, resource managers, students and the curious.
ship → workflows → database → apps · API · R
🔭 Explore 7
Interactive apps and stories to visualize ocean conditions and marine life — no coding required.
Oceano Appsuperseded by Integrated App
Visualize and download CalCOFI oceanographic data in map, time-series and depth-profile views.
Copernicus App
Satellite-derived sea-surface conditions from the Copernicus Marine Service, mapped over the CalCOFI sampling region.
Pollutants App
Map pollutants in the Southern California Bight from the Regional Monitoring Program via SCCWRP.
Hypoxia Story
A scrollable story of hypoxia in the California Current Ecosystem and its changing oxygen levels over the past 71 years.
Larval Analysisinterim
Larval abundance analysis and visualization for Channel Islands National Marine Sanctuary species.
Visualization Galleryinterim
Gallery of visualizations used in products — manuscripts, reports and applications — across partners.
Dashboard Appinterim
Initial mockup of a condition dashboard — survey map, time series and indicator scores.
📊 Access Data 8
Query, browse, download or programmatically access the versioned integrated database — for analysts in SQL, R, Python or the browser.
Datacheck App
Cross-dataset observation explorer — compare coverage across cruises, datasets and depths, with shareable deep-link URLs.
RShinyDuckDB
Documentation
Technical documentation of the data ecosystem — data access, database, API, apps, maps and reports.
🛠 Build 6
The open-source plumbing — reproducible workflows, packages and servers behind everything above.
calcofi4db
R package of database tools for ingest workflows — cloud storage, Parquet conversion, DuckDB management and frozen releases.
R
H3 Tile Server
Streams H3 hexagon tiles from DuckDB SQL to MapLibre maps — the engine behind the Integrated App's dynamic layers (h3t.calcofi.io).
PythonFastAPIDuckDBH3
Tile Server
Vector tile server (pg_tileserv) for quickly rendering dense geometries — points, lines and polygons — on slippy maps.
🎓 Student Contributions 5
Capstone and fellowship projects by university students partnering with CalCOFI.
Station Data Portal
Map-based discovery of what is measured at each of 115 CalCOFI stations, with live variable search and auto-generated ERDDAP, Euphausiid and ZooDB queries.
UCSB Data Science Capstone · 2026 · Nicole Xu, Aashish Krishnan, Qiongwen (Lucy) Cao
CA Ocean Monitoring Map
Statewide inventory of California ocean and coastal monitoring programs — hex-grid coverage, survey transects, discharger stations and bathymetry.
UCLA Capstone · 2026 · Betty Huang
SaferSeafood App
Personalized fish-consumption advisories for Southern California anglers — DDT levels predicted by species and catch location.
UCSB Bren MEDS Capstone · 2024
Marine Mammal App
Marine mammal eDNA detections and visual sightings visualized against oceanographic conditions on the CalCOFI grid.
UCSB Data Science Capstone · 2025
Capstone Apparchived
Spatial and temporal visualization of the CalCOFI bottle dataset — the first student capstone built on the database.
UCSB CCDSP Fellowship · 2022