Sentences with phrase «submarine groundwater»

A research led by the UAB demonstrates the importance of submarine groundwater discharge as a source of nutrients for the marine ecosystems of the Mediterranean Sea.

The research, published in PNAS, calculates for the first time the magnitude of submarine groundwater discharge into the Mediterranean Sea, which can reach up to 15 times higher than that of riverine runoff.

Moosdorf (2017) has reviewed the locations and many human uses of fresh submarine groundwater discharge around the world.

Land - based pollutants, such as fertilizers and chemicals in wastewater, infiltrate into the groundwaters beneath land and eventually exit into nearshore ecosystems as submarine groundwater discharge (SGD)-- seeping into the coastal zone beneath the ocean's surface.

Although submarine groundwater is natural, it can act as a conduit for highly polluted water to shorelines.

Groundwater that seeps into the coastal zone beneath the ocean's surface — termed submarine groundwater discharge (SGD)-- is an important source of fresh water and nutrients to nearshore coral reefs throughout the globe.

«How submarine groundwater affects coral reef growth.»

When this water, called submarine groundwater discharge (SGD), trickles through contaminated soil and rock, it can pick up and transport a variety of ions, nutrients, and chemicals to the sea — including pollutants that contribute to coastal dead zones and toxic algal blooms.

The study can help researchers identify which variables of topography and climate drive submarine groundwater discharge, says Robert Buddemeier, a geohydrologist at the Kansas Geological Survey in Lawrence.

Submarine groundwater seeping through sediments right before reaching the coastline, forming a small stream on the beach of Les Fonts (Alcossebre, Castelló, Spain).

The shallow coral reefs off Kahekili, West Maui, are exposed to nutrient - enriched, low - pH submarine groundwater discharge (SGD) and are particularly vulnerable to the compounding stressors from land - based sources of pollution and lower seawater pH. To constrain the carbonate chemistry system, nutrients and carbonate chemistry were measured along the Kahekili reef flat every 4 h over a 6 - day sampling period in March 2016.

However, with improving techniques, researchers recently estimated total submarine groundwater (saline and fresh water combined) discharges suggesting a rate 3 to 4 times greater than the observed global river runoff, or a volume equivalent to 331 mm / year (13 inches) of sea level rise.

Recent ecological studies have measured local submarine groundwater seepages to determine contributions of solutes and nutrients to coastal ecosystems.

The recharge - discharge imbalance can be reconciled if water cycle budgets included the difficult - to - measure rates of prolific submarine groundwater discharge (SGD).

If fresh submarine groundwater discharge approaches just 7 % of the total SGD, it would not only balance current groundwater recharge, but would steadily raise sea level by an additional 2 mm / year, even if there was no ocean warming and no melting glaciers.

«Submarine groundwater discharge supplies as much nutrients as rivers to the Mediterranean Sea.»

Connections to land - based systems Hydrologists think these submarine groundwater reserves started to form tens of thousands of years ago, during periods like the Last Glacial Maximum when much of the Earth's water was bound up in ice and sea levels were especially low.

To conduct the study, researchers used Ra - 228, a natural radioactive tracer that is ideally suited for quantifying the submarine groundwater discharge into the sea at basin level.

Submarine groundwater discharge (SGD) consists of a mixture of continental freshwater and seawater, which recirculates through the coastal aquifer.