Sentences with phrase «water oxygen condition»

Deep water oxygen condition in the winters 2014 and 2015 Oxygen profiles 2014 and 2015 Deep water salinity 2014 and 2015 Salinity profiles 2014 and 2015

Not exact matches

During 2016/17, environmental water holders were presented with an unexpected challenge, as many lowland rivers in the southern and central regions of the Murray - Darling Basin were subject to low oxygen conditions following widespread natural flooding.

As for the increase in phosphorus content, it was caused by the phosphorus that in the summer of 2014 flowed in from the deep waters in the north of the Baltic Sea main basin and the phosphorus that was released from the Gulf of Finland's own seabed in the poor oxygen conditions and mixed with the surface layer during last winter.

A central factor improving the oxygen situation from last year was that the eutrophic, low - oxygen deep water from the main basin has not flowed into the Gulf of Finland in the weather conditions of the past summer, unlike in the spring of 2014, for example.

«Similar to the «dead zone» nowadays spreading in the Gulf of Mexico, the soil crisis could have caused a worldwide expanse of uninhabitable low - oxygen conditions in shallow waters,» explains team member Henk Visscher of Utrecht University in the Netherlands.

Other specific conditions, such as the concentration of dissolved oxygen in the pore water of the filter body, reduce the ability of pathogens to survive in planted soil filters.

In some of the samples, the team dramatically reduced the concentrations of dissolved phosphate and oxygen to simulate conditions that might exist inside equipment used to recycle urine into water on spacecraft during long - duration flights.

Mangrove rivulus, which can live out of the water for extended periods of time (days or weeks, as long as the conditions are moist), uses its specialised jumping technique when water has low oxygen concentrations or high levels of hydrogen sulphide, or to escape predators and search for terrestrial prey such as crickets.

An applied electric current splits the water into hydrogen and oxygen, and under the right conditions, lithium or potassium then acts as a catalyst to absorb energy and collapse hydrogen's electron orbit.

She found that in anoxic conditions, when there is no oxygen in the bottom layers of the Chesapeake Bay's waters, dissolved methane built up, probably coming from the mud, and when storms mixed up the invisible layers of the Bay's waters, the methane made it to the surface and into the atmosphere.

Many of the artificial methods of making hydrogen and oxygen from water require materials that are too expensive, require too much energy or break down too quickly in real - world conditions, like the acidic electrolytes in fuel cells.

Aquatic species richness and abundance can decline, and in extreme cases salinization can prevent lakes from mixing - causing low oxygen conditions that smother aquatic life and reduce water quality.

Lowest readings of dissolved oxygen were found in late summers, as is the case in other estuaries along the Oregon coast, when incoming salty seawater settles longer in the estuary and warmer, drier conditions reduce the amount of fresh water from the Coos River.

«Also, we feel that if we can understand how fish coped with low - oxygen, high CO2, acidic waters in the past, it will give us some insight into how they might cope with man - made climate change which appears to be giving rise to such conditions again,» Dr Rummer says.

Thatch can help provide a good growing environment for grasses, but excess thatch can prevent water and oxygen from reaching plant roots and create conditions for diseases, Grubbs said.

Without new supplies of oxygen - rich water, conditions in lower coastal waters — where bacteria are feeding — can become suffocating.

Now, scientists at Rensselaer are turning these atmospheric assumptions on their heads with findings that prove the conditions on early Earth were simply not conducive to the formation of this type of atmosphere, but rather to an atmosphere dominated by the more oxygen - rich compounds found within our current atmosphere — including water, carbon dioxide, and sulfur dioxide.

Around 500 species call the lake home and are adapted to Titicaca's unusual conditions, such as the giant Titicaca water frog with its flaps of skin suited to absorb the region's limited oxygen.

Under aerobic conditions, the neutralizing receptor is oxygen and water is formed, while under anaerobic conditions carbon dioxide is the receptor and methane is formed.

But they had not yet studied those fact deniers under conditions of derivation on oxygen, water, or food which might solve the condition.

The real world's atmosphere was likened to a real greenhouse which has both heating and cooling mechanisms in place to get optimum growing conditions for plants, in other words, in the real world's analogy of greenhouse with convection and open windows, all the gases which are our atmosphere are greenhouse gases, primarily nitrogen and oxygen for the stability of temperature by gravity and wind and water for cooling by convection of gases with volume.

As a result, ocean waters became stratified with little oxygen, a condition that proved deadly to marine life.

In fact, certain of TEPCO's actions in the aftermath of the explosions have been confused and, some might opine, lacking discipline of purpose to the extent that expedient decisions have been made without proper forethought and judiciousness to avoid knock - on consequences: for example, the injection of seawater may have resulted in salt deposits sufficient to foul cooling flows in the lower regions of the RPV [reactor pressure vessel]; the liberation of hydrogen from seawater is more rampant than from freshwater and radiolysis of oxygen from the cooling water could provide stoichiometric conditions and ignition with hydrogen in the absence of air in the containments; and the latest and most recent announcement to deploy a nitrogen purge to the Unit 1 reactor seems yet another ill - explained and unjustified desperate measure».