Modeling Seasonal Variability Fecal Coliform in Natural Surface Waters using the Modified SWAT
- Authors
- Cho, Kyung Hwa; Pachepsky, Yakov A.; Kim, Minjeong; Pyo, JongCheol; Park, Mi-Hyun; Kim, Young Mo; Kim, Jung-Woo; Kim, Joon Ha
- Issue Date
- Apr-2016
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Soil and water assessment tool; Fecal contamination; Surface water; Bacterial water quality
- Citation
- JOURNAL OF HYDROLOGY, v.535, pp.377 - 385
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF HYDROLOGY
- Volume
- 535
- Start Page
- 377
- End Page
- 385
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/23188
- DOI
- 10.1016/j.jhydrol.2016.01.084
- ISSN
- 0022-1694
- Abstract
- Fecal coliforms are indicators of pathogens and thereby, understanding of their fate and transport in surface waters is important to protect drinking water sources and public health. We compiled fecal coliform observations from four different sites in the USA and Korea and found a seasonal variability with a significant connection to temperature levels. In all observations, fecal coliform concentrations were relatively higher in summer and lower during the winter season. This could be explained by the seasonal dominance of growth or die-off of bacteria in soil and in-stream. Existing hydrologic models, however, have limitations in simulating the seasonal variability of fecal coliform. Soil and in-stream bacterial modules of the Soil and Water Assessment Tool (SWAT) model are oversimplified in that they exclude simulations of alternating bacterial growth. This study develops a new bacteria subroutine for the SWAT in an attempt to improve its prediction accuracy. We introduced critical temperatures as a parameter to simulate the onset of bacterial growth/die-off and to reproduce the seasonal variability of bacteria. The module developed in this study will improve modeling for environmental management schemes.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 건설환경공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/23188)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.