GroMoPo Metadata for Kyushu Island model

Authors:

GroMoPo E. Leijnse

Owners:

gromopo_admin

Type:

Resource

Storage:

The size of this resource is 1.8 KB

Created:

Feb 08, 2023 at 4:51 a.m.

Last updated:

Feb 08, 2023 at 4:51 a.m.

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Abstract

Groundwater is an important resource for water use in the alluvial coastal lowland plain. In the Shiroishi lowland plain, southwestern Kyushu Island of Japan, land subsidence and salinity intrusion due to intense withdrawals of groundwater have become the main environmental issues for public concern. In this study, an integrated surface and groundwater model was established and applied to the Shiroishi site to simulate groundwater flow hydraulics, aquifer compaction and solute transport in the alluvial lowland plain. Moreover, a groundwater optimization model was also formulated to search for an optimal safe yield of groundwater extraction without violating salinity intrusion and other constraints. The simulated results show that groundwater levels in the aquifer greatly vary in response to varying climatic and pumping conditions. Consequently, land subsidence has rapidly occurred throughout the area with the central prone in Shiroishi basin. As a result of pumping and land subsidence, seawater has been intruded along the coast. in case of relative sea level rise, seawater intrusion appears to extend much farther in land from the coast. From the viewpoint of agricultural water management, pumping for irrigation with an optimal pumping amount that is a new finding from the optimization model will sustain groundwater quality in the study area. (c) 2006 Elsevier B.V. All rights reserved.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Japan

North Latitude

33.3677°

East Longitude

130.3150°

South Latitude

33.1052°

West Longitude

129.9726°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1016/j.agwat.2006.03.006
Depth	250
Scale	101 - 1 000 kmÂ²
Layers	5
Purpose	Groundwater resources;Subsidence;Climate change;Salt water intrusion
GroMoPo_ID	217
IsVerified	True
Model Code	MODFLOW;SEAWAT
Model Link	https://doi.org/10.1016/j.agwat.2006.03.006
Model Time	SS
Model Year	2006
Model Authors	Don, NC; Hang, NTM; Araki, H; Yamanishi, H; Koga, K
Model Country	Japan
Data Available	Report/paper only
Developer Email	don@ilt.saga-u.ac.jp
Dominant Geology	Model focuses on multiple geologic materials
Developer Country	Japan
Publication Title	Groundwater resources and management for paddy field irrigation and associated environmental problems in an alluvial coastal lowland plain
Original Developer	No
Additional Information	In the Shiroishi lowland plain, southwestern Kyushu Island of Japan, land subsidence and salinity intrusion due to intense withdrawals of groundwater have become the main environmental issues for public concern. In this study, an integrated surface and groundwater model was established and applied to the Shiroishi site to simulate groundwater flow hydraulics, aquifer compaction and solute transport in the alluvial lowland plain. Moreover, a groundwater optimization model was also formulated to search for an optimal safe yield of groundwater extraction without violating salinity intrusion and other constraints.
Integration or Coupling	Water use;Water management
Evaluation or Calibration	Static water levels
Geologic Data Availability	Yes

How to Cite

GroMoPo, E. Leijnse (2023). GroMoPo Metadata for Kyushu Island model, HydroShare, http://www.hydroshare.org/resource/492063c0585b468faf6cafe711248f30

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

http://creativecommons.org/licenses/by/4.0/

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