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GroMoPo Metadata for Nauru Island model


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Created: Feb 07, 2023 at 7:08 p.m.
Last updated: Feb 07, 2023 at 7:08 p.m.
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Abstract

Water resources sustainable management is a vital issue for small islands where groundwater is often the only available water resource. Nauru is an isolated and uplifted limestone atoll island located in the Pacific Ocean. Politecnico di Milano performed a feasibility study for the development of sustainable use of groundwater on the island. This paper focuses on the first phase of the study that concerns the conceptual site model development, the hydrogeological characterization and the 2D model implementation. During the project, different activities were performed such as GNSS topographic survey of monitoring wells and groundwater level surveys taking into account tidal fluctuation. This data collection and the analysis of previous studies made it possible to identify the most suitable areas for groundwater sustainable extraction. The characterization findings suggested, unlike previous studies and surveys, the presence of only few drought resilient thin freshwater lenses, taking place in low conductivity sandy deposits, unexpectedly next to the seashore. Thanks to the 2D modeling results, it has been possible to clarify the mechanism that allows the storage of freshwater so close to the sea.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Nauru
North Latitude
-0.4995°
East Longitude
166.9711°
South Latitude
-0.5562°
West Longitude
166.9058°

Content

Additional Metadata

Name Value
DOI 10.3390/w9100788
Depth 100
Scale 11 - 101 km²
Layers 16-20 layers
Purpose Salt water intrusion
GroMoPo_ID 92
IsVerified True
Model Code MODFLOW
Model Link https://doi.org/10.3390/w9100788
Model Time
Model Year 2017
Model Authors L. Alberti, I. La Licata, M. Cantone
Model Country Nauru
Data Available Report/paper only
Developer Email ivana.lalicata@polimi.it
Dominant Geology Carbonate (including karst)
Developer Country Italy
Publication Title Saltwater Intrusion and Freshwater Storage in Sand Sediments along the Coastline: Hydrogeological Investigations and Groundwater Modeling of Nauru Island
Original Developer No
Additional Information
Integration or Coupling None of the above
Evaluation or Calibration Static water levels
Geologic Data Availability

How to Cite

GroMoPo, D. Kretschmer (2023). GroMoPo Metadata for Nauru Island model, HydroShare, http://www.hydroshare.org/resource/2f257baa6c104a5ba570d7463cb2f33a

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

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

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