Hydrology

Water Resources Water Levels Water Cycle Water Management Climate Change Groundwater Climate Science River Systems Climate Impact Water Storage

Mars Express Maps Dark Deposits in Shalbatana Vallis

The sharpened topography helps scientists test ideas about floods draining toward a past northern sea.

Record-Low Colorado River Runoff to Lake Powell Forecast as U.S. Cuts Releases

B.C. Snowpack Near Normal Masks Sharp North–South Divide

Lake Powell Runoff Forecast Plunges to 22% of Normal, Raising Record-Low Risk

April Survey Finds California Snowpack Near Record Low as Utah Sets Worst on Record

Aerial Surveys Find 90% Snowpack Loss in Arizona’s White Mountains

Aichi Tightens Water Use After Ure Dam Runs Dry

Pakistan Reaffirms Indus Treaty as Senate Flags Dam Funding Gap and Flood Risks

Utah Snowpack Nears Record Low as Cox Urges Prayer, Conservation

Cemaden Warns São Paulo Reservoirs Unlikely to Recover This Year as Levels Sink to Post‑2014 Lows

Atmospheric Rivers Refill California Reservoirs, Lifting Shasta Near 80% Capacity

Christmas Storms Lift Catalonia Reservoirs to 82%, Prompting Precautionary Releases

Satellite Data Show Europe’s Freshwater Stores Shrinking, With South and East Hit Hardest

Cutzamala Storage Dips to 96.3% as Rainy Season Closes

Prakasam Barrage Nears Six-Lakh-Cusec Discharge as Somasila Opens Five Gates After Montha Rains

Netherlands Publishes Above-Regional Flood Maps for ARK-NZK Showing Weeks-Long Standing Water After Extreme Rains

Salt Lake City Breaks October Rain Record at 4.16 Inches as More Storms Loom

Colorado River Report Warns of Imminent System Crash, Presses Cuts and Glen Canyon Dam Overhaul

Heavy Rain Lifts Yorkshire Reservoirs to 45.6%, Biggest Weekly Rise in 30 Years

Sabesp Extends Nighttime Water Pressure Cuts to 19:00–05:00 Across Greater São Paulo