Submarius
Global water clarity for divers
Details
- External ID
- 48614062
- Source
- HN
- Company
- —
- Product
- Submarius
- Website domain
- submarius.com
- Launched
- June 20, 2026
- Cohort
- —
- Upvotes
- 14
- Upvotes percentile
- 0.6885245901639344
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Submarius started as just a dashboard for diving conditions, but I quickly realized that there is simply no API for water clarity, nor even a simple way to calculate it. Divers call it viz, and it is one of the most consequential factors for a diving experience. So I dove the viz rabbit-hole. I landed on a state-augmented ensemble kalman filter. More details on the /clarity page. My question for the HN audience is if anyone knows of a better way of doing this? There is a ton of satellite data to train on, but a lot of it is messy (clouds read as turbid water, shallow reefs reflect abnormally causing bad readings, etc). Appreciate any feedback on the subject. Enjoy the read!
Enrichment
- Theme
- interactive simulations and creative experiments
- Vertical
- Travel & hospitality
- Function
- Analytics & BI
- Audience
- B2C
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- water clarity maps for divers
- Manually corrected
- False
Could you build this?
No Accurately forecasting underwater visibility worldwide requires complex oceanographic modeling, satellite radiometry data processing, and calibration against marine sensor networks.
What it would actually take: The system requires high-throughput GIS/remote-sensing pipelines ingesting petabytes of multi-spectral satellite data (Copernicus Sentinel-3, MODIS/Aqua for Kd490 diffuse attenuation coefficients) fused with NOAA hydrodynamic, tidal, and river discharge models. The hard part is physical modeling: converting satellite water surface reflectance into real-time horizontal Secchi-depth/diver visibility across coastal zones subject to turbidity, wave resuspension, and plankton blooms. This requires specialized oceanographers, remote sensing data engineers, and heavy spatial computing infrastructure.
Discussion
6 comments analyzed.
Competitors mentioned: Existing dashboards for water activities (sailing, rowing)
Concerns raised: Unclear messaging about whether it covers multiple activities or is activity-specific, Sharing functionality is difficult to discover and use, URL structure doesn't support easy deep linking for specific locations
Feature requests: Deep links with location format like `/diving/location/{lat},{lng}`, Easier sharing mechanism for location-specific conditions
Competitors
Other products that read as similar to this one — 32 launches clear the similarity bar, closest 8 shown.
Attention rank: #16 of 33 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 210 days after the earliest competitor.
- I made a tactical map-based WWII submarine simulator (public beta) · hn · 2026-05-18 · 125 upvotes · similarity 0.44
- I turned algae into a bio-altimeter and put it on a weather balloon · hn · 2025-11-22 · 142 upvotes · similarity 0.40
- DepthGaze · ph · 2026-09-27 · 1 upvotes · similarity 0.40
- Under-water-image-enhancement · github · 2026-09-09 · 12 upvotes · similarity 0.40
- GeoTraceroute · hn · 2026-04-29 · 21 upvotes · similarity 0.39
- DiveDocket · ph · 2026-09-13 · 1 upvotes · similarity 0.37
- Feature detection exploration in Lidar DEMs via differential decomp · hn · 2026-01-01 · 8 upvotes · similarity 0.36
- Dive Kit · ph · 2026-09-26 · 1 upvotes · similarity 0.35
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a analytics & bi tool for Legal yet.