Development of Web-based Load Duration Curve system for analysis of total maximum daily load and water quality characteristics in a waterbody

Kim, Jonggun; Engel, Bernard A.; Park, Youn Shik; Theller, Larry; Chaubey, Indrajeet; Kong, Dong Soo; Lim, Kyoung Jae

doi:10.1016/j.jenvman.2011.11.012

Cited by 22 publications

(13 citation statements)

References 6 publications

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“…Voluntary and crowdsourced citizen science approaches on the web enable community modeling efforts (Agliamzanov et al, 2019), environmental monitoring with smartphones, and social media analysis . Studies on urban water planning (Stewart et al, 2010;Jonoski and Seid, 2016), water quality modeling (Kim et al, 2012), resource management (Zulkafli et al, 2017;Basco-Carrera et al, 2017), and flood risk management (Yang and Tsai, 2000;Holz et al, 2006) demonstrate the capabilities of web-based systems for hydrology and water resources. Many international case-studies are presented for water resources management using web systems including applications for Finland (Dubrovin et al, 2006), Romania (Almoradie et al, 2013), and Brazil (Azevedo and Parreiras, 2015).…”

Section: 1-related Workmentioning

confidence: 99%

Web-based data analytics framework for well forecasting and groundwater quality

Sit

Langel

Thompson

et al. 2021

Science of The Total Environment

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Section: 1-related Workmentioning

confidence: 99%

Web-based data analytics framework for well forecasting and groundwater quality

Sit

Langel

Thompson

et al. 2021

Science of The Total Environment

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“…The maximum allowed load combines the water quality criteria set up by the CONAMA, which is 1000 MPN dL −1 , with the flow rate at the streamflow gauge, obtained with the development of an FDC. By multiplying the FDC with the water quality criteria, it is then possible to obtain the LDC, which relates the maximum allowed load to the percentage that can be observed in time (and flow permanence), the Total Maximum Daily Load (TMDL) [29,30]. Larger allowable loads are associated with a shorter permanence, since these are associated with higher flows when the dilution capacity of the river is more elevated.…”

Section: Data Used In the Studymentioning

confidence: 99%

A New Approach to Use Load Duration Curves to Evaluate Water Quality: A Study in the Doce River Basin, Brazil

Serrano

Borges

Pruski

et al. 2020

Water

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Although water availability depends both on qualitative and quantitative aspects, most studies focus only on one of these. Therefore, the goal here is to relate water quality and quantity with the construction of Load Duration Curves (LDC) and to estimate E. coli load patterns in different flow conditions, seasons, and positions of two sub-basins of the Doce watershed (Brazil): Piracicaba and Piranga. A novel methodology is proposed in which the Burr XII distribution is adjusted to the LDC to compare all observed loads to their respective Total Maximum Daily Load (TMDL), allowing the estimation of the relative difference (RD) between these. Higher values of RD were observed for low flows for the Piracicaba basin, more urbanized, where point sources of pollution are the primary concern, reaching up to 99% of needed load reduction. In the Piranga basin, more agricultural, there was a broader RD variation, from 9% to 97% load reduction needed, which is an evidence of point sources of pollution combined with non-point sources. The new methodology can be used to estimate the load reduction of any pollutant and can be used by environmental agencies to identify effective practices to minimize and control pollution in different locations of the basins.

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“…However, water quality characterizations for several flow conditions rather than a single flow should be considered to restore water quality (Cleland, 2002;Kim et al, 2012). Thus, additional methods that utilize statistical techniques are often employed as alternatives to computer models to estimate the current and allowable pollutant loads for TMDLs.…”

Section: Introductionmentioning

confidence: 99%

“…Thus, additional methods that utilize statistical techniques are often employed as alternatives to computer models to estimate the current and allowable pollutant loads for TMDLs. The load duration curve (LDC) technique (NDEP, 2003;USEPA, 2007a) is commonly used in the development and application of practical TMDLs because it is easily developed and understood (Cleland, 2003;Kim et al, 2012). LDCs provide the pollutant-load capacity of the stream at the monitored location under different hydrologic conditions.…”

Section: Introductionmentioning

confidence: 99%