8 results
 External Partners

Quantifying hydrologic parameters such as precipitation, streamflow, evapotranspiration,
and aquifer response are fundamental to understanding a region’s hydrological budget, and
thus the availability of water resources. This is particularly important in small island
developing communities where critical water resources are limited. Climate and
streamflow measurements provide information on ground and surface water supply, while
measurement of aquifer parameters such as water level and salinity is imperative for

 External Partners

Groundwater is the primary water source on the island Tutuila in American Samoa, and accurate
quantification of groundwater availability is essential for well-informed management of this limited
resource. A water budget approach using SWB2, a soil water-balance model was applied to Tutuila
with the primary objective of calculating spatially and temporally distributed net-infiltration, which
directly controls groundwater recharge rate. Other water budget components such as

 External Partners

Groundwater is the primary water source on the island Tutuila in American Samoa, and accurate
quantification of groundwater availability is essential for well-informed management of this limited
resource. A water budget approach using SWB2, a soil water-balance model was applied to Tutuila
with the primary objective of calculating spatially and temporally distributed net-infiltration, which
directly controls groundwater recharge rate. Other water budget components such as

 External Partners

Quantifying hydrologic parameters such as precipitation, streamflow, evapotranspiration,
and aquifer response are fundamental to understanding a region’s hydrological budget, and
thus the availability of water resources. This is particularly important in small island
developing communities where critical water resources are limited. Climate and
streamflow measurements provide information on ground and surface water supply, while
measurement of aquifer parameters such as water level and salinity is imperative for

 External Partners

On Tutuila, the main island in the Territory of American Samoa, sustainable water
resources management is a high priority. Groundwater provides drinking water to over 90%
of the island’s residents. However the sustainability of this resource is threatened by overuse,
salinization of wells, and reduction of water quality—potentially due to prevalent non-point
pollution sources. Proposed solutions to these and other water issues on the island involve
exploration for new groundwater sources with lower contamination potential and

 External Partners

This report focuses on addressing the critical challenges of sustainable water resources management on Tutuila, the main island in the Territory of American Samoa. It presents an updated conceptual hydrogeological model of the island's groundwater and surface water resources by integrating existing hydrological information with recently acquired subsurface datasets, shedding light on the complex nature of Tutuila's hydrogeology, which varies significantly across different locations on the island.

 External Partners

This report documents the UH monitoring network which provides hydrologic parameters, such as precipitation, streamflow, and aquifer response, in small island developing communities like Tutuila, American Samoa, where water resources are limited. It highlights the collaborative efforts between the University of Hawaii's Water Resources Research Center and the American Samoa Power Authority to establish a new monitoring network for weather, stream gauging, and aquifer data, providing essential information for sustainable water resource management and various applications

 External Partners

This report focuses on addressing the critical challenges of sustainable water resources management on Tutuila, the main island in the Territory of American Samoa. It presents an updated conceptual hydrogeological model of the island's groundwater and surface water resources by integrating existing hydrological information with recently acquired subsurface datasets, shedding light on the complex nature of Tutuila's hydrogeology, which varies significantly across different locations on the island.