A generalized groundwater fluctuation model based on precipitation for estimating water table levels of deep unconfined aquifers

Jina Jeong, Eungyu Park, Weon Shik Han, Kue Young Kim, Heejun Suk, Si Beom Jo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A generalized water table fluctuation model based on precipitation was developed using a statistical conceptualization of unsaturated infiltration fluxes. A gamma distribution function was adopted as a transfer function due to its versatility in representing recharge rates with temporally dispersed infiltration fluxes, and a Laplace transformation was used to obtain an analytical solution. To prove the general applicability of the model, convergences with previous water table fluctuation models were shown as special cases. For validation, a few hypothetical cases were developed, where the applicability of the model to a wide range of unsaturated zone conditions was confirmed. For further validation, the model was applied to water table level estimations of three monitoring wells with considerably thick unsaturated zones on Jeju Island. The results show that the developed model represented the pattern of hydrographs from the two monitoring wells fairly well. The lag times from precipitation to recharge estimated from the developed system transfer function were found to agree with those from a conventional cross-correlation analysis. The developed model has the potential to be adopted for the hydraulic characterization of both saturated and unsaturated zones by being calibrated to actual data when extraneous and exogenous causes of water table fluctuation are limited. In addition, as it provides reference estimates, the model can be adopted as a tool for surveilling groundwater resources under hydraulically stressed conditions.

Original languageEnglish
Pages (from-to)749-757
Number of pages9
JournalJournal of Hydrology
Volume562
DOIs
Publication statusPublished - 2018 Jul

Fingerprint

unconfined aquifer
water table
groundwater
vadose zone
transfer function
recharge
infiltration
well
phreatic zone
monitoring
groundwater resource
hydrograph
hydraulics

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

Cite this

Jeong, Jina ; Park, Eungyu ; Shik Han, Weon ; Kim, Kue Young ; Suk, Heejun ; Beom Jo, Si. / A generalized groundwater fluctuation model based on precipitation for estimating water table levels of deep unconfined aquifers. In: Journal of Hydrology. 2018 ; Vol. 562. pp. 749-757.
@article{527e8361efbe408282c96d0921ab7eee,
title = "A generalized groundwater fluctuation model based on precipitation for estimating water table levels of deep unconfined aquifers",
abstract = "A generalized water table fluctuation model based on precipitation was developed using a statistical conceptualization of unsaturated infiltration fluxes. A gamma distribution function was adopted as a transfer function due to its versatility in representing recharge rates with temporally dispersed infiltration fluxes, and a Laplace transformation was used to obtain an analytical solution. To prove the general applicability of the model, convergences with previous water table fluctuation models were shown as special cases. For validation, a few hypothetical cases were developed, where the applicability of the model to a wide range of unsaturated zone conditions was confirmed. For further validation, the model was applied to water table level estimations of three monitoring wells with considerably thick unsaturated zones on Jeju Island. The results show that the developed model represented the pattern of hydrographs from the two monitoring wells fairly well. The lag times from precipitation to recharge estimated from the developed system transfer function were found to agree with those from a conventional cross-correlation analysis. The developed model has the potential to be adopted for the hydraulic characterization of both saturated and unsaturated zones by being calibrated to actual data when extraneous and exogenous causes of water table fluctuation are limited. In addition, as it provides reference estimates, the model can be adopted as a tool for surveilling groundwater resources under hydraulically stressed conditions.",
author = "Jina Jeong and Eungyu Park and {Shik Han}, Weon and Kim, {Kue Young} and Heejun Suk and {Beom Jo}, Si",
year = "2018",
month = "7",
doi = "10.1016/j.jhydrol.2018.05.055",
language = "English",
volume = "562",
pages = "749--757",
journal = "Journal of Hydrology",
issn = "0022-1694",
publisher = "Elsevier",

}

A generalized groundwater fluctuation model based on precipitation for estimating water table levels of deep unconfined aquifers. / Jeong, Jina; Park, Eungyu; Shik Han, Weon; Kim, Kue Young; Suk, Heejun; Beom Jo, Si.

In: Journal of Hydrology, Vol. 562, 07.2018, p. 749-757.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A generalized groundwater fluctuation model based on precipitation for estimating water table levels of deep unconfined aquifers

AU - Jeong, Jina

AU - Park, Eungyu

AU - Shik Han, Weon

AU - Kim, Kue Young

AU - Suk, Heejun

AU - Beom Jo, Si

PY - 2018/7

Y1 - 2018/7

N2 - A generalized water table fluctuation model based on precipitation was developed using a statistical conceptualization of unsaturated infiltration fluxes. A gamma distribution function was adopted as a transfer function due to its versatility in representing recharge rates with temporally dispersed infiltration fluxes, and a Laplace transformation was used to obtain an analytical solution. To prove the general applicability of the model, convergences with previous water table fluctuation models were shown as special cases. For validation, a few hypothetical cases were developed, where the applicability of the model to a wide range of unsaturated zone conditions was confirmed. For further validation, the model was applied to water table level estimations of three monitoring wells with considerably thick unsaturated zones on Jeju Island. The results show that the developed model represented the pattern of hydrographs from the two monitoring wells fairly well. The lag times from precipitation to recharge estimated from the developed system transfer function were found to agree with those from a conventional cross-correlation analysis. The developed model has the potential to be adopted for the hydraulic characterization of both saturated and unsaturated zones by being calibrated to actual data when extraneous and exogenous causes of water table fluctuation are limited. In addition, as it provides reference estimates, the model can be adopted as a tool for surveilling groundwater resources under hydraulically stressed conditions.

AB - A generalized water table fluctuation model based on precipitation was developed using a statistical conceptualization of unsaturated infiltration fluxes. A gamma distribution function was adopted as a transfer function due to its versatility in representing recharge rates with temporally dispersed infiltration fluxes, and a Laplace transformation was used to obtain an analytical solution. To prove the general applicability of the model, convergences with previous water table fluctuation models were shown as special cases. For validation, a few hypothetical cases were developed, where the applicability of the model to a wide range of unsaturated zone conditions was confirmed. For further validation, the model was applied to water table level estimations of three monitoring wells with considerably thick unsaturated zones on Jeju Island. The results show that the developed model represented the pattern of hydrographs from the two monitoring wells fairly well. The lag times from precipitation to recharge estimated from the developed system transfer function were found to agree with those from a conventional cross-correlation analysis. The developed model has the potential to be adopted for the hydraulic characterization of both saturated and unsaturated zones by being calibrated to actual data when extraneous and exogenous causes of water table fluctuation are limited. In addition, as it provides reference estimates, the model can be adopted as a tool for surveilling groundwater resources under hydraulically stressed conditions.

UR - http://www.scopus.com/inward/record.url?scp=85047629477&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85047629477&partnerID=8YFLogxK

U2 - 10.1016/j.jhydrol.2018.05.055

DO - 10.1016/j.jhydrol.2018.05.055

M3 - Article

AN - SCOPUS:85047629477

VL - 562

SP - 749

EP - 757

JO - Journal of Hydrology

JF - Journal of Hydrology

SN - 0022-1694

ER -