Basin

Ebro Basin

North-East Spain · 85,534 km² · 3.5M people

Basin Health
44.9-5.9
Critical
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Sentinel-2 imagerylast 90 days, lowest cloud cover
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Sentinel-2 RGB (B04/B03/B02)

Basin Health Score, pillars

Quantity, Quality, Habitat from Sentinel-2 plus ERA5 rain (SAR still out)
Water quantity
EO
54.6-13.2
Critical

NDWI -0.299 (baseline -0.338) → 73/100 · NDMI 0.054 → 37/100 · Precip percentile 17th → 34/100

Water quality
EO
42.6flat
Critical

B04 reflectance 0.148 → turbidity 2/100 · B05/B04 ratio 1.47 → Chl-a proxy 67/100 · |NDWI−MNDWI| 0.051 → clarity 74/100

Riparian habitat
EO
33.6flat
Critical

Riparian NDVI 0.329 → 35/100 · Seasonal NDVI Δ -0.038 → 49/100 (stable=60) · Bare fraction 32.5% → 7/100

External context

Reference only, not in the three pillar score
Withdrawal pressure
30-7
Critical

WRI Aqueduct 4.0: High-Extremely High baseline water stress (3.5). ~80% of Ebro water extracted for irrigation; fruit and vegetable demand accelerating with hotter, drier Mediterranean summers.

Regulatory alignment
64flat
At risk

CHE (Confederación Hidrográfica del Ebro) reporting active; CSRD and CSDDD exposure for European retailers sourcing Aragón produce.

Index time-series

Sentinel-2 L2A · 15-day aggregation · cloud-cover ≤ 40%
NDWI (water content)
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NDVI (vegetation vigour)
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NDMI (canopy moisture)
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B04 turbidity proxy
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B05/B04 Chl-a proxy
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Restoration Projects

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