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GroMoPo Metadata for Jeju Island WTF model


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Created: Feb 08, 2023 at 4:19 a.m.
Last updated: Feb 08, 2023 at 4:20 a.m.
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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.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Korea, Republic of
North Latitude
33.5642°
East Longitude
127.0409°
South Latitude
33.1569°
West Longitude
126.1253°

Content

Additional Metadata

Name Value
DOI 10.1016/j.jhydrol.2018.05.055
Depth 100
Scale 11 - 101 km²
Layers
Purpose Scientific investigation (not related to applied problem)
GroMoPo_ID 195
IsVerified True
Model Code MODFLOW
Model Link https://doi.org/10.1016/j.jhydrol.2018.05.055
Model Time
Model Year 2021
Model Authors Park, E; Jeong, J; Choung, S; Han, WS; Kim, KY; Suk, H
Model Country Korea, Republic of
Data Available Report/paper only
Developer Email egpark@knu.ac.kr
Dominant Geology
Developer Country South Korea
Publication Title A Method for Integrating Delayed Recharge Flux Through Unsaturated Zones into Analytical and Numerical Groundwater Flow Modeling
Original Developer No
Additional Information
Integration or Coupling
Evaluation or Calibration
Geologic Data Availability

How to Cite

GroMoPo, D. Kretschmer (2023). GroMoPo Metadata for Jeju Island WTF model, HydroShare, http://www.hydroshare.org/resource/9e106ddeb4054422a74eddb98f73a032

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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