Network panel
Algae Dataset
Every data hub, dataset, sensor, variable, paper and limitation in one tree — and for each: where it comes from, how far back it goes, how often it captures, why it belongs in a cholera study, and why it does not work everywhere.
Highlight site
All three
Chakaria HDSS
Matlab HDSS
Dhaka City
Choosing a site greys out everything that does not apply there.
- +DATA HUBSwhere the data physically comes from
- −DATASET TYPESgrouped by what kind of water they see
- +1. Ocean colour (hyperspectral)1 datasets
- +1. Ocean colour (merged)3 datasets
- +1. Ocean colour (single sensor)5 datasets
- +2. Inland/coastal high-res6 datasets
- +3. Lake / inland operational2 datasets
- −4. Model / reanalysis1 datasets
- +5. Discovery / portal1 datasets
- +6. Derived / uncalibrated2 datasets
- +7. In-situ validation5 datasets
- +SITE-WISEwhat actually applies at each site
- +DURATION & CAPTURE CADENCEdaily · weekly · 10-day · 16-day · monthly
- +VARIABLESwhat is computed from the bands
- +LIMITATIONSwhy not — typed and severity-ranked
- +PAPERSthe evidence, DOI-linked
4. Model / reanalysis
AL12 · CMEMS Global Ocean Biogeochemistry Reanalysis
CMEMS / Mercator Ocean
A Reliable
FREE
ACCOUNT NEEDED
Source · duration · capture cadence
- Data source
- CMEMS / Mercator Ocean
- Access route
- copernicusmarine toolbox
- Endpoint / asset
GLOBAL_MULTIYEAR_BGC_001_029- Duration
- 1993 → present (rolling)
- Capture cadence
- DAILY
- Resolution
0.25 deg (~28 km)- Delivers
- Chlorophyll, phytoplankton carbon, nitrate, phosphate, silicate, primary production, O2, pH
- Command
07_algae_api_download.py --sources cmems
Why it is used for cholera.
Assimilated model, validated against in-situ · skill lower in coastal zones
Why not — catalogue limitation. MODEL OUTPUT, NOT OBSERVATION. 0.25 deg has essentially no coastal skill. Use for basin-scale nutrient context only.
Site applicability
| Site | Verdict | Why |
|---|---|---|
| Chakaria HDSS | PARTIAL | MEDIUM — gives NUTRIENTS, which no optical sensor can measure, and is completely gap-free |
| Matlab HDSS | NOT APPLICABLE | LOW — 28 km |
| Dhaka City | NOT APPLICABLE | NOT APPLICABLE |
Reliable · accessible · authentic
A Reliable
Reliability tier
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Accessible
CMEMS
Authentic — operator