Sentences with phrase «increased water runoff»

The team also compared the ice loss up until the mid-1980s to that observed by satellites over roughly the last decade and found that today the rate of ice loss is twice the 20th century average, mostly because of increased water runoff from the ice sheet's surface.
«The removal of vegetal cover through burning would likely increase water runoff when it rains, potentially reducing their water retention capacity and invariably the soil moisture,» Ichoku said.

Not exact matches

- Drinking water and wastewater infrastructure upgraded - Advanced treatment installed for both drinking water and wastewater, and advanced filtration systems installed for drinking water - Green infrastructure and open spaces built for source water protection - «[E] nsuring proper management and storage of common contaminants like manure and road salt to prevent runoff; and increasing the state Superfund to expedite the cleanup of hazardous waste that may impact sources of drinking water
In addition, by paving over previously open space — or farming previously reserved lands — communities in these watersheds contribute to record high waters through increased runoff.
«Thus, annual glacier runoff volume typically increases until a maximum is reached, often referred to as «peak water.»»
Warmer water coupled with the increased nutrients from permafrost and soil runoff could bolster aquatic life.
Urbanization increases surface runoff, by creating more impervious surfaces such as pavement and buildings do not allow percolation of the water down through the soil to the aquifer.
Other recommendations include building a peripheral canal to ferry some Sierra runoff around the delta, increasing the «groundwater banking» of water in underground aquifers, increasing a water transfer market to allow water rights holders to sell access to water, and stepping up efforts to conserve water in urban areas.
Those heavier raindrops also compact the soil, causing it to absorb less water and increasing runoff and sediment, which clog rivers and contribute significantly to lowland flooding.
ref Specifically, reducing land - based sources of pollution (nutrient runoff and sedimentation) has been identified as an important approach to address acidification in coastal waters because nutrients like phosphorus and nitrogen and land - based carbon inputs can increase the acidity of coastal and oceanic waters.
They provide essential breeding grounds and nurseries for commercially important fish; mangroves and the adjacent seagrass beds retain and filter sediment from river runoff, increasing the clarity of water on the reefs; they are the first line of storm defence, absorbing the power of the wind.
Which leads me to another question — the melting glacial / Greenland / Antarctic ice water is depleted in CO2 (check out the bubbles in your ice cubes)-- how much additional CO2 is being sequestered by this runoff into the oceans, and what happens to CO2 increase when we run out of glaciers?
These dinoflagellate blooms, which can be thought of as ancient red tides, are a sign of major environmental stress in the coastal zone possibly as a result of the increased runoff of water from the land.
We find that while the surface stratification strengthens with the increasing runoff, the surface mixed layer thins and warmer water is found closer to the surface.
Although data are not complete, and sometimes contradictory, the weight of evidence from past studies shows on a global scale that precipitation, runoff, atmospheric water vapor, soil moisture, evapotranspiration, growing season length, and wintertime mountain glacier mass are all increasing.
Finally, if the North American hydrologic cycle is enhanced, and / or Greenland's southern ice caps melt, the increased fresh water runoff from land areas could dilute the ocean surface water and critically reduce its salinity.
Availability of resources such as usable water will also depend on changing rates of precipitation, with decreased availability in many places but possible increases in runoff and groundwater recharge in some regions like the high latitudes and wet tropics.
The volume of runoff also increases, reducing the amount of water available during the dry summer months when water demand is higher and supplies are lower.
Agricultural runoff, in combination with increased water temperatures, has caused considerable non-point source pollution problems in recent years, with increased phosphorus and nitrogen loadings from farms contributing to more frequent and prolonged occurrences of anoxic «dead zones» and harmful, dense algae growth for long periods.
Stormwater runoff that overloads urban sewer systems during extreme events adds to increased levels of toxic substances, sewage, and bacteria in the Great Lakes, affecting water quality, beach health, and human well - being.
Changing land use and the expansion of urban areas are reducing water infiltration into the soil and increasing surface runoff.
This usually occurs in coastal and estuarine areas due to reducing land - based influence (e.g., either from reduced runoff and associated groundwater recharge, or from excessive water withdrawals from aquifers) or increasing marine influence (e.g., relative sea - level rise).
These increases in runoff would likely improve conditions for water - dependent natural resources, such as cienegas, riparian areas, and aquatic habitats, which are vulnerable to low flows that are experienced seasonally, especially in summer months, and also during droughts [5]--[7].
Mechanical thinning can increase runoff at fine scales, as well as reduce fire risk and tree water stress during drought, but the effects of this practice have not been studied at scales commensurate with recent forest disturbances or under a highly variable climate.
It also delays water runoff to increase evapo - transpiration while providing secure and proper drainage of surplus volumes to avoid unforeseen roof loads.
Mechanical thinning alone or in combination with prescribed fires reduced fire risk, increased runoff, and improved tree water - stress at the plot scale [20]--[23].
Runoff gains also could provide incidental benefits to the water supply of downstream users, but the increases were more modest when compared to total runoff from the Salt - Verde waterRunoff gains also could provide incidental benefits to the water supply of downstream users, but the increases were more modest when compared to total runoff from the Salt - Verde waterrunoff from the Salt - Verde watersheds.
SITES - certified landscapes additionally help reduce water demand, filter and reduce stormwater runoff, provide wildlife habitat, reduce energy consumption, improve air quality, improve human health and increase outdoor recreation opportunities.
By mid-century, annual average river runoff and water availability are projected to increase by 10 - 40 % at high latitudes and in some wet tropical areas, and decrease by 10 - 30 % over some dry regions at mid-latitudes and in the dry tropics, some of which are presently water - stressed areas.
«anti-rural factors» — lack of evaporative cooling from soil and plants, lack of plant cooling, increased thermal conductivity and capacity from artificial structures, faster water runoff and sequestration in cities
Higher runoff is expected to mobilise fertilisers and pesticides to water bodies in regions where their application time and low vegetation growth coincide with an increase in runoff (Soil and Water Conservation Society, 2water bodies in regions where their application time and low vegetation growth coincide with an increase in runoff (Soil and Water Conservation Society, 2Water Conservation Society, 2003).
greater pollutant loads due to increased infiltration rates to aquifers or higher runoff to surface waters (as result of high precipitation),
However, no anthropogenic influence can be detected for 1 - day and 3 - day surface runoff, as increases in extreme precipitation in the present - day climate are offset by decreased snow cover and lower frozen water content in soils during the May — June transition months, compared to pre-industrial climate.
It is perfectly conceivable, for example, to have annual precipitation increase 10 to 20 % at the same time that mean annual surface water runoff decreases by 10 to 20 % (or even more).
Several studies focused on the Colorado River basin showed that annual runoff reductions in a warmer western U.S. climate occur through a combination of evapotranspiration increases and precipitation decreases, with the overall reduction in river flow exacerbated by human demands on the water supply.
Raw water quality is declining, affecting drinking water quality even with conventional treatment, due to increased temperature, as well as sediment, nutrient, and pollutant runoff during heavy rain and floods.
This short - term increase in runoff is interpreted as the consequence of glacier retreat, but in the long term there will be a reduction in water supply as the glaciers shrink beyond a critical limit (Jansson et al., 2003).
Part IV: «Climate Change and Water: Rights and Runoff» presents Donald Bren Distinguished Professor of Corporate Environmental Management Gary Libecap and Assistant Professor of Hydrology Christina Tague in a discussion about the complexities of managing the ever - increasing demands placed on scarce water resouWater: Rights and Runoff» presents Donald Bren Distinguished Professor of Corporate Environmental Management Gary Libecap and Assistant Professor of Hydrology Christina Tague in a discussion about the complexities of managing the ever - increasing demands placed on scarce water resouwater resources.
«Reduced runoff is increasing the pressure on freshwater resources in much of the world, especially with more demand for water as population increases,» says NCAR scientist Aiguo Dai, the lead author of the journal paper.
Although these hydrological changes could potentially increase soil water availability in previously snow - covered regions during the cool low - ET season (34), this effect would likely be outweighed by the influence of warming temperatures (and decreased runoff) during the warm high - ET season (36, 38), as well as by the increasing occurrence of consecutive years with low precipitation and high temperature (Fig. 4A).
Constructed wetlands around the house and the inclusion of a green roof further help to increase energy efficiency and manage water runoff.
Within the Indus basin, reduced melt water will have significant impacts upon available runoff; however, increased uncertainties surrounding precipitation and socioeconomic changes limit any conclusive assessment of how water availability will be affected; moreover, seasonality of runoff may be a more important factor.
Polluted runoff from both rural and urban lands increases erosion and puts public health at risk by contaminating drinking water supplies.
Nearshore benthic communities also could undergo significant change induced by reduced ice cover, longer open - water season, changing flows through the Bering Strait, increased frequency and intensity of storms, increased river and freshwater runoff, and increased ice scouring and coastal erosion.
As the mountain range's glaciers began to waste away, water runoff temporarily increased.
Shoemaker Green not only offers an open space of lawns, tree - lined walkways, and sitting areas but will also improve water quality and minimize runoff, reduce the effect of the urban heat island by greening large paved areas, restore biomass on site, increase local biodiversity, and improve the overall environment for the community.
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