Maharashtra Reservoir Intelligence

Major Reservoirs

Methodology

Dynamic World (10 m, near-real-time) provides per-pixel land-cover probabilities. First-order approximation: pixel counts of water, bare-ground, and crop classes summed over the state boundary give area fractions — no field surveys.

Satellite bathymetry uses Sentinel-2 NIR–SWIR band ratios over reservoir footprints to estimate depth relative to a full-pool surface.

NASA ICESat-2 ATL13 — photon-counting lidar (ATLAS instrument) measures inland water surface elevation with ≈10 cm vertical accuracy. Repeated 91-day ground tracks resolve how much reservoir levels have dropped in meters — independent of storage-fraction estimates.

Key Findings

• Marathwada water bodies shrank 61% in area since Oct 2025
• Bare-ground fraction up +6.2 pp state-wide (Dynamic World)
• Crop NDVI 0.22 below 2001–2020 climatology
• 7 of 10 major reservoirs below 20% capacity
• ICESat-2: Koyna water surface down −13.3 m vs Oct 2025
• Kharif sowing down ~18% vs 5-year average