Groundwater

Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractures of rock formations. About 30 percent of all readily available freshwater in the world is groundwater. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called the water table. Groundwater is recharged from the surface; it may discharge from the surface naturally at springs and seeps, and can form oases or wetlands. Groundwater is also often withdrawn for agricultural, municipal, and industrial use by constructing and operating extraction wells. The study of the distribution and movement of groundwater is hydrogeology, also called groundwater hydrology.

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Can California’s floods help recharge depleted groundwater supplies?

New Bay Area maps show hidden flood risk from sea level rise and groundwater

India’s federal disaster management agency has imposed a gag order on scientists — Satellite data analysis, combined with other techniques, reveals that the rapid sinking of hill town Joshimath could be caused by groundwater extraction

Rust-coated irrigation pipes hint at lack of nitrate in groundwater

California has lost more groundwater than held in all its reservoirs

Timely study on rising groundwater offers hope for drought-stricken East Africa

Rising sea levels mean rising groundwater, and that spells trouble for coastal septic systems

1.2 billion-year-old groundwater is some of the oldest on Earth

1.2-Billion-Year-Old Groundwater System Found in South African Mine

A small lowering of the groundwater level can destroy house foundations

Groundwater Discovered in Sediments Buried Deep Beneath Antarctic Ice

Vast Saline Groundwater System Discovered Deep Under Antarctic Ice

Scientists Discover a Massive Groundwater System in Sediments Below Antarctic Ice

In sediments below Antarctic ice, scientists discover a giant groundwater system

Citizen Scientists Help Map Ridge Networks on Mars That May Hold Records of Ancient Groundwater

Groundwater level threatens to fall in Germany due to climate change

World Water Day 2022: Celebrating Earth’s groundwater

Sustainable groundwater use could be answer to Africa’s water issues

Reassessing radon as a reliable groundwater tracer

Hope for present-day Martian groundwater dries up in new study