Harmonized Landsat Sentinel-2 (HLS) v2.0

NASA LP DAAC

Specification

Code: AL14
Reliability: B Usable
Variables delivered: Harmonised 30 m surface reflectance → NDCI-like, FAI, turbidity
Resolution: 30 m
Cadence: 2-3 days combined
Coverage: 2013 (L30) / 2015 (S30) → present
Cost: FREE
Login required: No (GEE) / Earthdata for direct
Latency: ~2-5 days
CSV direct?: Via GEE → .csv

Chakaria HDSS YES Rural COASTAL

HIGH — near-weekly 30 m over the shrimp ponds

Matlab HDSS YES Rural riverine

HIGH

Dhaka City YES Urban inland

HIGH

Route: GEE · earthaccess · LP DAAC
Endpoint / asset ID: NASA/HLS/HLSL30/v002 · NASA/HLS/HLSS30/v002
Pipeline step: 3 Extract
Documentation: https://developers.google.com/earth-engine/datasets/catalog/NASA_HLS_HLSL30_v002

No automated route. This source is fetched manually: (add a block to 10).

VALIDATION STATUS

NASA operational product

KNOWN LIMITATION

Only 2013+. HLSS30 resamples Sentinel-2's 20 m red edge to 30 m, losing some NDCI fidelity.