Runoff Calculation Articles & Analysis
12 articles found
The site contamination problem was exacerbated due to heavy rainfall and associated stormwater runoff which caused the unrecovered product to migrate from the spill site. Taking account of the high rainfalls levels that followed the event, it was calculated that contaminated stormwater runoff from the immediate project site (10 acres with 8.7 ...
The site contamination problem was exacerbated due to heavy rainfall and associated stormwater runoff which caused the unrecovered product to migrate from the spill site. Taking account of the high rainfalls levels that followed the event, it was calculated that contaminated stormwater runoff from the immediate project site (10 acres with 8.7 ...
This information can be used to calculate the amount of runoff bound for reservoirs and available for hydrogeneration. ...
Estimating infiltration losses is very important for calculating runoff and recharge. However, the accuracy of contemporary infiltration models for disturbed urban soils may not be adequate, potentially compromising calculations based upon them. ...
Agricultural run-off can contain pesticides, sediment particles and nitrates and is a major threat to the health of the sea. Although there are policy frameworks to reduce run-off water, they often don’t clearly explain how to maximise benefits. A new study provides an economic framework that prioritises methods based on their cost-effectiveness, which could help policymakers to reduce the ...
The impact of potential future climate change scenarios on the irrigation water requirements (IRRs) of two major agricultural crops (coffee and seed corn) in Hawai'i was studied using the Irrigation Management System (IManSys) model. In addition to IRRs calculations, IManSys calculates runoff, deep percolation, canopy interception, and ...
The hydrologic model estimates the amount of surface water runoff generated from the catchment during the storm event/ events. The water quality model estimates the transportation of the pollutants (total nitrogen, total phosphorus and suspended solids) from a particular catchment. The water quality model integrates two sub-processes: pollutants build-up and pollutants wash-off. ...
This paper describes the development of a database and a website to support the newest version of Low Impact Development Rapid Assessment (LIDRA) model, LIDRA 2.0, a planning level model for assessing the cost-effectiveness of low impact development (LID) and addressing runoff-related problems in urban watersheds. LIDRA 2.0 is a web-based application that generates stochastic ...
Numerous hydrologic/water quality models of run-off and soil erosion have been coupled to Geographical Information System (GIS) to determine Non-Point Source (NPS) pollutants from watersheds. Hydrology and water-resource engineering rely on observations of environmental conditions and the accuracy of environmental data. This paper focuses on estimation and monitoring of NPS pollutant loads based ...
Secondly, the model output is used as input to the WaSiM hydrological model to calculate and compare the runoff with observed runoff from six watersheds in Iceland. ...
In the Shire of Waroona at the Tylers Pit Cutting section of the NPBH, the median and side swale drains required erosion protection from the excessive road stormwater runoff. Project civil consultants GHD calculated that the runoff velocity within the swale drains could reach 1.5 m/s so they required a suitable product that would perform under ...
This study was conducted to evaluate the overall performance of the Precision Agricultural-Landscape Modeling System (PALMS) for calculating runoff and soil loss under cropped conditions. The PALMS model uses a lognormal distribution of saturated hydraulic conductivity across the fields to simulate typical soil heterogeneity within soil texture classes. ...