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GroMoPo Metadata for Malioboro MODFLOW model


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Created: Feb 07, 2023 at 6:59 p.m.
Last updated: Feb 07, 2023 at 6:59 p.m.
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Abstract

Malioboro is a famous tourism area in Yogyakarta City, in which there are many hotels and increases every years and this follows by the increasing needs of fresh water taken from underlying groundwater. The decreasing of groundwater table become a great issue on this area, therefore the objective of the research is to predict groundwater table change in the next 10 years due to increase abstraction of groundwater. To answer the mentioned objectives, field observation of dug wells and collection of secondary data of log bores also calculation of recharge and water abstraction are used to understand and build the conceptual model of local groundwater system. The prediction is done by conducting simulation on a numerical groundwater model by using MODFLOW. The local groundwater system consists of two aquifer layers; upper aquifer and lower aquifer which separated incompletely by clay layer. Simulation is conducting by distributing the groundwater pumping for domestic and non-domestic utilization by dug wells in the upper aquifer, whereas deep wells non-domestic utilization are applied only in the lower aquifer. Simulations are conducted twice for the recent day and the next ten years prediction of groundwater abstraction. In the case of groundwater abstraction in the next ten years, dug wells abstraction and deep wells pumping are setting to 4727 m3/day and 1648 m3/day, respectively. The groundwater pumping rates is representing increase of groundwater withdrawal of users in the range only between 0.2-1.2 % per year compare to the recent condition. The simulation reveals change occur on groundwater table depth and pattern. In average, the groundwater table will decrease of about 0.25 meter.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Indonesia
North Latitude
-7.7738°
East Longitude
110.3745°
South Latitude
-7.8155°
West Longitude
110.3546°

Content

Additional Metadata

Name Value
DOI 10.22146/jag.39996
Depth 100
Scale 11 - 101 km²
Layers 1 layer
Purpose Groundwater resources
GroMoPo_ID 86
IsVerified True
Model Code MODFLOW
Model Link https://doi.org/10.22146/jag.39996
Model Time 10 years
Model Year 2018
Model Authors Alwan Satapona, Doni Prakasa Eka Putra, and Heru Hendrayana
Model Country Indonesia
Data Available Report/paper only
Developer Email alwansatapona@gmail.com
Dominant Geology Unconsolidated sediments
Developer Country Indonesia
Publication Title Groundwater Flow Modeling in the Malioboro, Yogyakarta, Indonesia
Original Developer No
Additional Information
Integration or Coupling Water use
Evaluation or Calibration Unsure
Geologic Data Availability

How to Cite

GroMoPo, D. Kretschmer (2023). GroMoPo Metadata for Malioboro MODFLOW model, HydroShare, http://www.hydroshare.org/resource/0c9b07382ecf4a33a95fad4435c36781

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

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

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