Storage coefficient of merged subbasins

Chulsang Yoo, Changhyun Jun, Carlo De Michele, Myungseob Lee

Research output: Contribution to journalArticle

Abstract

This study investigates the effect of the merging of subbasins on the storage coefficient of the entire basin with the concept of parallel and serial systems of linear reservoirs having different storage coefficients. Based on the linear reservoir theory, both the parallel and serial connections of two subbasins are analyzed and the storage coefficient is derived from the impulse response function of the merged subbasins. The storage coefficient of the entire basin could also be derived by merging subbasins one by one from upstream to downstream. The applicability of the proposed methodology is tested considering the subbasin arrangement of the Chungju Dam Basin in Korea. The findings are as follows: (1) the storage coefficient of a basin with parallel subbasins is represented as the weighted average by the subbasin areas, and that of a basin with serial subbasins is represented simply by the sum of storage coefficients; and (2) the storage coefficient of the Chungju Dam Basin is estimated to be approximately 30.53 h by considering the structure of 44 subbasins, i.e., the combination of parallel and serial subbasins.

Original languageEnglish
Article number06017003
JournalJournal of Hydrologic Engineering
Volume22
Issue number8
DOIs
Publication statusPublished - 2017 Aug 1

Fingerprint

Merging
Dams
Impulse response
basin
dam
methodology

Keywords

  • Basin subdivision
  • Linear reservoir theory
  • Merging of subbasins
  • Parallel and serial connection
  • Storage coefficient

ASJC Scopus subject areas

  • Environmental Chemistry
  • Civil and Structural Engineering
  • Water Science and Technology
  • Environmental Science(all)

Cite this

Storage coefficient of merged subbasins. / Yoo, Chulsang; Jun, Changhyun; De Michele, Carlo; Lee, Myungseob.

In: Journal of Hydrologic Engineering, Vol. 22, No. 8, 06017003, 01.08.2017.

Research output: Contribution to journalArticle

Yoo, Chulsang ; Jun, Changhyun ; De Michele, Carlo ; Lee, Myungseob. / Storage coefficient of merged subbasins. In: Journal of Hydrologic Engineering. 2017 ; Vol. 22, No. 8.
@article{924ca149a924417cac47e82dff66b4b3,
title = "Storage coefficient of merged subbasins",
abstract = "This study investigates the effect of the merging of subbasins on the storage coefficient of the entire basin with the concept of parallel and serial systems of linear reservoirs having different storage coefficients. Based on the linear reservoir theory, both the parallel and serial connections of two subbasins are analyzed and the storage coefficient is derived from the impulse response function of the merged subbasins. The storage coefficient of the entire basin could also be derived by merging subbasins one by one from upstream to downstream. The applicability of the proposed methodology is tested considering the subbasin arrangement of the Chungju Dam Basin in Korea. The findings are as follows: (1) the storage coefficient of a basin with parallel subbasins is represented as the weighted average by the subbasin areas, and that of a basin with serial subbasins is represented simply by the sum of storage coefficients; and (2) the storage coefficient of the Chungju Dam Basin is estimated to be approximately 30.53 h by considering the structure of 44 subbasins, i.e., the combination of parallel and serial subbasins.",
keywords = "Basin subdivision, Linear reservoir theory, Merging of subbasins, Parallel and serial connection, Storage coefficient",
author = "Chulsang Yoo and Changhyun Jun and {De Michele}, Carlo and Myungseob Lee",
year = "2017",
month = "8",
day = "1",
doi = "10.1061/(ASCE)HE.1943-5584.0001524",
language = "English",
volume = "22",
journal = "Journal of Hydrologic Engineering - ASCE",
issn = "1084-0699",
publisher = "American Society of Civil Engineers (ASCE)",
number = "8",

}

TY - JOUR

T1 - Storage coefficient of merged subbasins

AU - Yoo, Chulsang

AU - Jun, Changhyun

AU - De Michele, Carlo

AU - Lee, Myungseob

PY - 2017/8/1

Y1 - 2017/8/1

N2 - This study investigates the effect of the merging of subbasins on the storage coefficient of the entire basin with the concept of parallel and serial systems of linear reservoirs having different storage coefficients. Based on the linear reservoir theory, both the parallel and serial connections of two subbasins are analyzed and the storage coefficient is derived from the impulse response function of the merged subbasins. The storage coefficient of the entire basin could also be derived by merging subbasins one by one from upstream to downstream. The applicability of the proposed methodology is tested considering the subbasin arrangement of the Chungju Dam Basin in Korea. The findings are as follows: (1) the storage coefficient of a basin with parallel subbasins is represented as the weighted average by the subbasin areas, and that of a basin with serial subbasins is represented simply by the sum of storage coefficients; and (2) the storage coefficient of the Chungju Dam Basin is estimated to be approximately 30.53 h by considering the structure of 44 subbasins, i.e., the combination of parallel and serial subbasins.

AB - This study investigates the effect of the merging of subbasins on the storage coefficient of the entire basin with the concept of parallel and serial systems of linear reservoirs having different storage coefficients. Based on the linear reservoir theory, both the parallel and serial connections of two subbasins are analyzed and the storage coefficient is derived from the impulse response function of the merged subbasins. The storage coefficient of the entire basin could also be derived by merging subbasins one by one from upstream to downstream. The applicability of the proposed methodology is tested considering the subbasin arrangement of the Chungju Dam Basin in Korea. The findings are as follows: (1) the storage coefficient of a basin with parallel subbasins is represented as the weighted average by the subbasin areas, and that of a basin with serial subbasins is represented simply by the sum of storage coefficients; and (2) the storage coefficient of the Chungju Dam Basin is estimated to be approximately 30.53 h by considering the structure of 44 subbasins, i.e., the combination of parallel and serial subbasins.

KW - Basin subdivision

KW - Linear reservoir theory

KW - Merging of subbasins

KW - Parallel and serial connection

KW - Storage coefficient

UR - http://www.scopus.com/inward/record.url?scp=85018360839&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85018360839&partnerID=8YFLogxK

U2 - 10.1061/(ASCE)HE.1943-5584.0001524

DO - 10.1061/(ASCE)HE.1943-5584.0001524

M3 - Article

AN - SCOPUS:85018360839

VL - 22

JO - Journal of Hydrologic Engineering - ASCE

JF - Journal of Hydrologic Engineering - ASCE

SN - 1084-0699

IS - 8

M1 - 06017003

ER -