SatHDSS
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.

2. Inland/coastal high-res

AL14 · Harmonized Landsat Sentinel-2 (HLS) v2.0
NASA LP DAAC
B Usable FREE NO ACCOUNT

Source · duration · capture cadence

Data source
NASA LP DAAC
Access route
GEE · earthaccess · LP DAAC
Endpoint / asset
NASA/HLS/HLSL30/v002 · NASA/HLS/HLSS30/v002
Duration
2013 (L30) / 2015 (S30) → present
Capture cadence
2-3 days combined
Resolution
30 m
Delivers
Harmonised 30 m surface reflectance → NDCI-like, FAI, turbidity
Command
(add a block to 10)
Why it is used for cholera. NASA operational product
Why not — catalogue limitation. Only 2013+. HLSS30 resamples Sentinel-2's 20 m red edge to 30 m, losing some NDCI fidelity.

Site applicability

SiteVerdictWhy
Chakaria HDSS YES HIGH — near-weekly 30 m over the shrimp ponds
Matlab HDSS YES HIGH
Dhaka City YES HIGH

Reliable · accessible · authentic

B Usable
Reliability tier
OPEN
Accessible
NASA LP DAAC
Authentic — operator
Documentation: https://developers.google.com/earth-engine/datasets/catalog/NASA_HLS_HLSL30_v002
Full dataset page →