Sentences with phrase «runoff of surface waters»

This area must normally be considered dry land and the flooding must be caused by accumulation or runoff of surface waters.

Hurricanes or tropical storms, an overflow of inland or tidal waters, a rapid accumulation of rain or runoff of surface waters from any source, mudflow or collapse of land or erosion can cause flooding as well as a broken water main.

The unusual or rapid accumulation or runoff of surface waters could be a number of different kinds of precipitation or water accumulating unexpectedly from a nearby body of water.

As defined by NFIP, it is a temporary or general condition of partial or complete inundation of two or more acres of normally dry land from: mudflow, overflow of inland or tidal waters, unusual or rapid accumulation or runoff of surface waters from any source, and a collapse or subsidence of land along the shore of a lake or other similar body of water as a result of erosion or undermining caused by waves or currents of water exceeding anticipated cyclical levels.

This flood usually occurs from a temporary situation such as a rapid accumulation of runoff of surface waters from heavy rains, damn breakage, tidal waves and / or heavy mudflow.

Not exact matches

The big puffs of foam that form on the surface of the water aren't evidence of agricultural runoff, but rather the result of rainwater leeching through the forest floor.

Brown researchers have compiled a detailed Indonesian climate record of the last 60,000 years, tracking telltale indicators in sedimentary cores: titanium levels (a marker for surface water runoff) and the carbon isotopes of leaf wax, a marker for plant varieties (grasses indicate dry conditions).

The scientists believe that the drains, designed to channel rain or irrigation runoff to the gutter in front of the house, may leave a perpetual supply of standing water in the buried pipe beneath the soil surface, which provide sites for mosquito development.

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.

The study, called «Modeling the effects of adopting agroforestry on basin scale surface runoff and sediment yield in the Philippines,» uses a computer - based Soil and Water Assessment Tool (SWAT) to simulate the effects of different land uses on watershed hydrology and the ecosystem services provided by the Gabayan watershed.

To distinguish between water quality impacts from groundwater and stormwater runoff from the St. Lucie Estuary versus other impacts directly related to periodic discharges from Lake Okeechobee, Lapointe and his collaborators conducted a comprehensive analysis of the interactions of septic systems, groundwater, and surface waters.

On the other hand, a shallow rain garden will need a lot of surface area to provide enough water storage to filtrate runoff from larger storms.

Gentine's team is the first to isolate the response of vegetation from the global warming total complex response, which includes such variables for the water cycle as evapotranspiration (the water evaporated from the surface, both from plants and bare soil) soil moisture, and 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.

Overlaying social factors, levels of agricultural runoff, local pollution and upwelling, a natural ocean process that brings more corrosive deep ocean water to the surface, helps tease out regional differences in vulnerability.

By facilitating the real - time, synoptic monitoring of tDOM and freshwater runoff in surface polar waters, this novel approach will help understand the manifestations of climate change in this remote region.

Much of the American West relies on groundwater and surface runoff stored in dams for much of their water.

Dr. Geh Min, former president of Singapore Nature Society, highlighted the unique role of tropical mangrove ecosystems in providing wildlife habitat, curbing coastal erosion caused by intense wave actions or surface runoff, acting as a natural purifier of water, while serving as sitea for human recreation.

Changing land use and the expansion of urban areas are reducing water infiltration into the soil and increasing surface runoff.

We define «additional runoff due to thinning» as the portion of precipitation that appears as surface water at the sub-watershed outlet and that is directly attributable to mechanical thinning treatments.

They measured «in - place» runoff at sub-watershed outlets and did not measure other aspects of the water budget, such as evapotranspiration, soil moisture, surface routing, and groundwater recharge.

First, woody perennials are able to explore a larger soil volume for water and nutrients, provide better soil cover and reduce surface runoff, all of which will reduce the impacts of droughts and extreme rainfall.

«This innovative approach is a way to achieve a win for farmers, for industrial organizations that may be required to reduce their greenhouse gas emissions, for the atmosphere, and for improved surface water quality from reduced nitrate runoff in the Upper Midwest all the way to the Gulf of Mexico.»

greater pollutant loads due to increased infiltration rates to aquifers or higher runoff to surface waters (as result of high precipitation),

Green roofs reduce the first flush of storm water runoff that often carries pollutants from impervious surfaces.

Losses from surface melting, water runoff, the breakup of glaciers into the ocean (calving), and the transformation of solid ice into water vapor (sublimation) exceed any gains through snowfall.2, 3,4,5 The Greenland ice sheet loses most of its mass on the perimeter, through a dozen fast - moving glaciers, including Helheim.5, 6

An important contribution to present day sea level rise could result from changes in the amount of water stored in the ground, on the surface in lakes and reservoirs, and by modifications to surface characteristics affecting runoff or evapotranspiration rates.

Nitrogen from agricultural runoff and sewage stimulates the growth of photosynthetic plankton on the surface of coastal waters.

It's been known for many years that the surface waters of Arctic Ocean are freshened by melting sea - ice and runoff from rivers.

Analyzed impervious surfaces for impervious cover to understand the level of storm water runoff occurring in Madison County, AL..