Analysis of the effects of low impact development practices on hydrological components using HSPF

• Published in: Journal of hydro-environment research Vol. 46; pp. 72 - 85
• Main Authors: Lee, Hyunji, Kim, Hakkwan, Kim, Jihye, Jun, Sang-Min, Hwang, Soonho, Song, Jung-Hun, Kang, Moon-Seong
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2023
• Subjects: Hydrological component; Hydrological Simulation Program-FORTRAN; Low Impact Development; Stormwater management; Surface-FTABLE; Water balance; Surface-FTABLE; Hydrological Simulation Program-FORTRAN; Hydrological component; Water balance; Low Impact Development; Stormwater management
• ISSN: 1570-6443; 1876-4444
• DOI: 10.1016/j.jher.2023.01.001

•Development and application of LID application method using HSPF Surface-FTABLE.•The new method can take into account LID facility infiltration.•Analysis of the changes in hydrological components and water balance. The purposes of this study are to propose the new approach for modeling the effectiveness of low impact development (LID) practices using Hydrological Simulation Program-Fortran (HSPF)'s Surface-FTABLE (function table) and to evaluate the impacts of LID application on hydrological components and water balance. LID was simulated using Surface-FTABLE, and changes in hydrological components and water balance were analyzed. These results were compared with results simulating LID using the HSPF LID Controls Tool built in the HSPF model. Embedded within the HSPF model, the HSPF LID Controls Tool is used to design and simulate infiltration-based best management practices. Surface runoff decreased similarly for both methods using Surface-FTABLE and LID Controls Tool. For Surface-FTABLE, the infiltration in the facility was reflected in the model, so interflow, outflow and baseflow outflow increased. As a result of the water balance analysis, the results of Surface-FTABLE showed a similar bias to those of the model without LID. In contrast, the results of the LID Controls Tool showed a large bias due to uninvolved infiltration. This study showed that HSPF Surface-FTABLE is applicable to LID simulation and that it is possible to simulate the change of each element of hydrologic components reasonably.