INVESTIGATING THE USE OF ECOZONES IN THE DESIGN OF
... significantly decreased and as such cover profiles should not be significantly thicker than the root depth. One of the key assumptions in the previous calculation for the storage capacity of a cover is that the degree of saturation throughout the cover profile is constant. In reality there is a grad ...
... significantly decreased and as such cover profiles should not be significantly thicker than the root depth. One of the key assumptions in the previous calculation for the storage capacity of a cover is that the degree of saturation throughout the cover profile is constant. In reality there is a grad ...
Sediment transport rate-based model for rainfall
... sediment and other pollution loads in receiving waters. Estimation of soil erosion is therefore essential to issues of land and water management, including TMDL (Total Maximum Daily Load) calculations, BMP (Best Management Practice) implementation and evaluation, sediment transport and storage in lo ...
... sediment and other pollution loads in receiving waters. Estimation of soil erosion is therefore essential to issues of land and water management, including TMDL (Total Maximum Daily Load) calculations, BMP (Best Management Practice) implementation and evaluation, sediment transport and storage in lo ...
The importance of upland flow paths in determining urban
... Abstract. Mitigation of urban effects on streams requires an understanding of the paths by which urban effects are transmitted from catchments to streams and how those effects are attenuated with distance. We assessed whether modeling attenuation from impervious surfaces and septic tanks along drain ...
... Abstract. Mitigation of urban effects on streams requires an understanding of the paths by which urban effects are transmitted from catchments to streams and how those effects are attenuated with distance. We assessed whether modeling attenuation from impervious surfaces and septic tanks along drain ...
Stormwater Manufactured Treatment Devices
... Use MTD Type 1 (separation devices, also referred to as hydrodynamic separators) designed and sized to treat, at a minimum, the stormwater runoff from the 1.8-inch, 1-year, 24-hour storm event, to prevent pollutants from being transported downstream. Use MTD Type 1 as the standard Stormwater MTD for ...
... Use MTD Type 1 (separation devices, also referred to as hydrodynamic separators) designed and sized to treat, at a minimum, the stormwater runoff from the 1.8-inch, 1-year, 24-hour storm event, to prevent pollutants from being transported downstream. Use MTD Type 1 as the standard Stormwater MTD for ...
PART 6.4: DEVELOPMENT ENGINEERING This Part of the CDCP
... xii. Street trees represent an important asset of the street landscape and consideration must be given to the location of the street tree in relation to the proposed layout of the development - to ensure this it is a pre-lodgement requirement that a tree report be obtained from Council prior to the ...
... xii. Street trees represent an important asset of the street landscape and consideration must be given to the location of the street tree in relation to the proposed layout of the development - to ensure this it is a pre-lodgement requirement that a tree report be obtained from Council prior to the ...
Management of Urban Stormwater Impacts Policy
... In the last 20 years, increasing emphasis internationally has been placed on addressing urbanisation impacts on natural water bodies, and the guiding principles that have evolved have become known as Water Sensitive Urban Design (WSUD). WSUD recognises that the primary reason for deterioration of ur ...
... In the last 20 years, increasing emphasis internationally has been placed on addressing urbanisation impacts on natural water bodies, and the guiding principles that have evolved have become known as Water Sensitive Urban Design (WSUD). WSUD recognises that the primary reason for deterioration of ur ...
Ticonderoga Stormwater Management Plan Vol.1
... The Town of Ticonderoga is located in the eastern Adirondack Mountain region of New York State (NYS) approximately 90 miles north of the State’s capital, the City of Albany (Fig. 2-1, App. A ) The Town is located in the northern most region of the Lake George Park and encompasses 56,320 acres or 88 ...
... The Town of Ticonderoga is located in the eastern Adirondack Mountain region of New York State (NYS) approximately 90 miles north of the State’s capital, the City of Albany (Fig. 2-1, App. A ) The Town is located in the northern most region of the Lake George Park and encompasses 56,320 acres or 88 ...
AMSR Land Surface Parameters. Algorithm Theoretical Basis
... others (Owe et al., 1988; Choudhury and Golus, 1988; Kerr and Njoku, 1990; Owe et al., 1992; and van de Griend and Owe, 1994). The SMMR was also shown to be useful for monitoring seasonal flooding (Sippel et al., 1994), and for vegetation monitoring (Choudhury et al., 1987; Calvet et al., 1994). McF ...
... others (Owe et al., 1988; Choudhury and Golus, 1988; Kerr and Njoku, 1990; Owe et al., 1992; and van de Griend and Owe, 1994). The SMMR was also shown to be useful for monitoring seasonal flooding (Sippel et al., 1994), and for vegetation monitoring (Choudhury et al., 1987; Calvet et al., 1994). McF ...
Drainage - Citrus County Board of County Commissioners
... Historically, the typical strategy adopted in response to stormwater flooding of developed areas was to modify the drainage system to convey runoff away from developed sites more rapidly. This strategy with increasing urbanization results in proportionately faster runoff during storm events. In addi ...
... Historically, the typical strategy adopted in response to stormwater flooding of developed areas was to modify the drainage system to convey runoff away from developed sites more rapidly. This strategy with increasing urbanization results in proportionately faster runoff during storm events. In addi ...
Development of Appropriate Stormwater Infiltration BMPs: Part I
... discussed some of the significant technical problems with this manual relative to providing reliable current information on the use of BMPs for managing urban area stormwater runoff water quality problems. This 1998 manual did not address many of the key water quality issues that urban area stormwat ...
... discussed some of the significant technical problems with this manual relative to providing reliable current information on the use of BMPs for managing urban area stormwater runoff water quality problems. This 1998 manual did not address many of the key water quality issues that urban area stormwat ...
Loading Ratios - Delaware County Conservation District
... (DEP) as supplemental guidance to the recommended criteria for loading ratios for sizing infiltration BMPs in the PA Stormwater Best Management Practices (BMP) Manual (Dec. 26, 2006). It’s primary intent is for projects facing site constraints and associated challenges in meeting the volume control ...
... (DEP) as supplemental guidance to the recommended criteria for loading ratios for sizing infiltration BMPs in the PA Stormwater Best Management Practices (BMP) Manual (Dec. 26, 2006). It’s primary intent is for projects facing site constraints and associated challenges in meeting the volume control ...
Modelling Rainwater-Harvesting System Reliability
... storage, catchment area and demand. Optimum tank sizing, potable water saving and runoff reduction are also investigated. It will help people to make educated decision about the storage volume size they need to install in their houses to get maximum return on their investment. ...
... storage, catchment area and demand. Optimum tank sizing, potable water saving and runoff reduction are also investigated. It will help people to make educated decision about the storage volume size they need to install in their houses to get maximum return on their investment. ...
A method of determining rooting depth from a terrestrial biosphere
... of maximum rooting depth from field studies (Canadell et al. 1996). As a sensitivity study, we also calculate optimized rooting depths under a setup with increased water use efficiency (WUE 5 assimilated carbon/transpired water). This can be viewed as the vegetation response to an increase in atmosp ...
... of maximum rooting depth from field studies (Canadell et al. 1996). As a sensitivity study, we also calculate optimized rooting depths under a setup with increased water use efficiency (WUE 5 assimilated carbon/transpired water). This can be viewed as the vegetation response to an increase in atmosp ...
Forest-tundra water balance signals traced by isotopic enrichment in
... consideration with application of Eq. (5) to watershed reservoirs. However, this effect can be viewed simply as a `resistance to mixing' of the reservoir that may be characterized from an understanding of local runoff processes. In permafrost environments, where water residence times in shallow lake ...
... consideration with application of Eq. (5) to watershed reservoirs. However, this effect can be viewed simply as a `resistance to mixing' of the reservoir that may be characterized from an understanding of local runoff processes. In permafrost environments, where water residence times in shallow lake ...
T-01 Grass Buffer - Urban Drainage and Flood Control District
... 3. Length: The recommended length (L), the distance along Space for grass buffers may not the sheet flow direction, should be a minimum of 14 feet. be available in ultra urban areas This value is based on the findings of Barrett et al. 2004 in (lot-line-to-lot-line). Stormwater Pollutant Removal i ...
... 3. Length: The recommended length (L), the distance along Space for grass buffers may not the sheet flow direction, should be a minimum of 14 feet. be available in ultra urban areas This value is based on the findings of Barrett et al. 2004 in (lot-line-to-lot-line). Stormwater Pollutant Removal i ...
Amount of water runoff from different vegetation types on extensive
... of neighbouring plants during water stress, but acted as a competitor when water was abundant. Lundholm et al. (2010) studied green roof systems planted with monocultures or mixtures containing one, three, or five forms to quantify water capture, and they showed that some mixtures outperformed the be ...
... of neighbouring plants during water stress, but acted as a competitor when water was abundant. Lundholm et al. (2010) studied green roof systems planted with monocultures or mixtures containing one, three, or five forms to quantify water capture, and they showed that some mixtures outperformed the be ...
Pavements and Surface Materials - Ct NEMO
... vehicular traffic. Restraints are used along the perimeter of the pavers or where there is a change in the use of pavement material to hold the pavers tightly together and help prevent spreading as a result of traffic forces. Concrete pavers come in many colors, shapes and patterns that can be used ...
... vehicular traffic. Restraints are used along the perimeter of the pavers or where there is a change in the use of pavement material to hold the pavers tightly together and help prevent spreading as a result of traffic forces. Concrete pavers come in many colors, shapes and patterns that can be used ...
Estimating regional forest productivity and water
... remote or ground-level sources. This can be challenging and often requires making significant assumptions where reliable data are not available. For example, models are often run using potential vegetation where maps of actual vegetation have not been developed. Because human activities have altered ...
... remote or ground-level sources. This can be challenging and often requires making significant assumptions where reliable data are not available. For example, models are often run using potential vegetation where maps of actual vegetation have not been developed. Because human activities have altered ...
Marco Schmidt Technische Universität Berlin, A59, Section Building
... evaporation, while groundwater recharge and runoff together represent 20%. Urban areas are characterized by completely paved areas as well as semi-permeable surfaces with little to no vegetation. The semi-permeable surfaces allow much higher groundwater recharge compared to naturally vegetated areas ...
... evaporation, while groundwater recharge and runoff together represent 20%. Urban areas are characterized by completely paved areas as well as semi-permeable surfaces with little to no vegetation. The semi-permeable surfaces allow much higher groundwater recharge compared to naturally vegetated areas ...
Integrated stormwater management as a long term
... Stormwater is water generated from precipitation during rain and snowmelt events. Stormwater runoff is water flowing over land or impervious surfaces that does not percolate into the ground. As the runoff flows over the surfaces (such as paved streets, parking lots, and building rooftops) it also ac ...
... Stormwater is water generated from precipitation during rain and snowmelt events. Stormwater runoff is water flowing over land or impervious surfaces that does not percolate into the ground. As the runoff flows over the surfaces (such as paved streets, parking lots, and building rooftops) it also ac ...
Aquaculture Production Aquaculture Production Best Management
... Louisiana’s rivers and lakes comes from rainfall runoff. As this runoff travels across the soil surface, it carries with it soil particles, organic matter and nutrients, such as nitrogen and phosphorus. Agricultural activities contribute to the amount of these materials entering streams, lakes, estu ...
... Louisiana’s rivers and lakes comes from rainfall runoff. As this runoff travels across the soil surface, it carries with it soil particles, organic matter and nutrients, such as nitrogen and phosphorus. Agricultural activities contribute to the amount of these materials entering streams, lakes, estu ...
Selection of the Optimal Design Rainfall Return Period of Urban
... system) and slope of the pipeline. On these variables it also depends the definition of the most appropriate frequency of cleaning. The annual costs of maintenance and operation of the network must be discounted over a period equal to the useful life of the network. The estimated useful life of HDPE ...
... system) and slope of the pipeline. On these variables it also depends the definition of the most appropriate frequency of cleaning. The annual costs of maintenance and operation of the network must be discounted over a period equal to the useful life of the network. The estimated useful life of HDPE ...
What Stormwater Management Is and Why It Is Important
... MS4s serving populations of 100,000 or more to obtain permits for their stormwater discharges. It also required permits for stormwater discharges from industries and construction sites greater than five acres in size. Phase II, issued in 1999, brought all MS4s located in urbanized areas into the per ...
... MS4s serving populations of 100,000 or more to obtain permits for their stormwater discharges. It also required permits for stormwater discharges from industries and construction sites greater than five acres in size. Phase II, issued in 1999, brought all MS4s located in urbanized areas into the per ...
Executive Summary (1 page) - Warm Springs Watershed Association
... While no formal studies have yet been done, it has been estimated that during much of the year the Run has a modest base flow of 20-30 gallons per minute (gpm). However, as is typical of streams in a ridge and valley formation, the Run is prone to flash flooding after major rainfall events, rapid sn ...
... While no formal studies have yet been done, it has been estimated that during much of the year the Run has a modest base flow of 20-30 gallons per minute (gpm). However, as is typical of streams in a ridge and valley formation, the Run is prone to flash flooding after major rainfall events, rapid sn ...
Estimation of Surface Run-off for Urban Area Using Integrated
... modeling. Weng (2001) developed a methodology to relate urban growth studies to distributed hydrological modeling using an integrated approach of remote sensing and GIS. Dougherty et al. (2007) investigated the relationship between catchment scale urbanization and basin hydrology through statistics, ...
... modeling. Weng (2001) developed a methodology to relate urban growth studies to distributed hydrological modeling using an integrated approach of remote sensing and GIS. Dougherty et al. (2007) investigated the relationship between catchment scale urbanization and basin hydrology through statistics, ...
Storm Water Management Model
The United States Environmental Protection Agency (EPA) Storm Water Management Model (SWMM) is a dynamic rainfall–runoff–subsurface runoff simulation model used for single-event to long-term (continuous) simulation of the surface/subsurface hydrology quantity and quality from primarily urban/suburban areas. The hydrology component of SWMM operates on a collection of subcatchment areas divided into impervious and pervious areas with and without depression storage to predict runoff and pollutant loads from precipitation, evaporation and infiltration losses from each of the subcatchment. In addition low impact development (LID) and best management practice areas on the subcatchment can be modeled to reduce the impervious and pervious runoff. The routing or hydraulics section of SWMM transports this water and possible associated water quality constituents through a system of closed pipes, open channels, storage/treatment devices, ponds, storages, pumps, orifices, weirs, outlets, outfalls and other regulators. SWMM tracks the quantity and quality of the flow generated within each subcatchment, and the flow rate, flow depth, and quality of water in each pipe and channel during a simulation period composed of multiple fixed or variable time steps. The water quality constituents such as water quality constituents can be simulated from buildup on the subcatchments through washoff to a hydraulic network with optional first order decay and linked pollutant removal, best management practice and low-impact development (LID) removal and treatment can be simulated at selected storage nodes. SWMM is one of the hydrology transport models which the EPA and other agencies have applied widely throughout North America and through consultants and universities throughout the world. The latest update notes and new features can be found on the EPA website in the download section.