Data Catalogue
SREBA Beetaloo application of remote sensing techniques for estimating the evapotranspiration (ET) flux from spring systems
Project
Domain name
SREBA Data Catalogue
Study Domain
Water quality and quantity
Project Description
The water quality and quantity studies for the Beetaloo Sub-basin SREBA assessed groundwater chemistry and levels, and better characterised aquifer parameters, intra- and inter-aquifer connectivity, recharge and discharge processes for regional aquifers overlying the Beetaloo Sub-basin. This study was led by the Northern Territory Government Department of Environment, Parks and Water Security, Water Resources Division.
Boundary name
SREBA Beetaloo Biophysical Study Area
Boundary description
<p>The boundary of the SREBA / Beetaloo project area</p>
Boundary tags: SREBA Beetaloo
Boundary or point
Metadata
Datatype
SREBA Registration Model -> Documents -> Reports
Publication link
Abstract
This report supports the Northern Territory Government's Beetaloo Sub-basin Strategic Regional Environmental and Baseline Assessment (SREBA) Project 4 - Water Quality and Quantity studies for the Beetaloo Sub-basin by establishing a groundwater baseline. Actual evapotranspiration and precipitation were quantified using remote sensing at four groundwater spring sites (Flora River spring, Mataranka Springs Complex, Top Springs, and Hot Springs Valley). The relationship between these two parameters was investigated over time to provide insights into associated hydrological processes, with precipitation minus actual evapotranspiration being described as excess water. The parameters' spatial patterns and temporal trends, including seasonal, annual, and long-term trends (Feb 2000 – Feb 2022) have been evaluated and presented. A decreasing trend of excess water throughout the study sites was observed, especially after 2011 and was more pronounced at the northern sites (Flora River spring and Mataranka Springs Complex). The evapotranspiration flux and excess water baseline outlined in this report provides an opportunity to close the water balance when other components of the hydro(geo)logical cycle are considered and accordingly shall contribute towards assessment of any impact of proposed onshore gas activities on groundwater.
Date Asset Created
02/12/2022
Temporal Coverage Start Date
01/02/2022
Temporal Coverage End Date
14/12/2022
Status
Completed
Maintenance Update Frequency
Not Planned
Custodian Contact
Licence
Creative Commons Attribution 4.0 International (CC BY 4.0)
Related to
| Id | Input name |
|---|---|
| ntg-spa-000000057 | SREBA Beetaloo springs region boundaries |
| ntg-rep-000000138 | SREBA Beetaloo Water Studies - final summary |
Boundary name
SREBA Water Studies Boundary
Boundary description
<p>Extent of Beetaloo SREBA Water Studies project area</p>
Boundary tags: SREBA Beetaloo Water
Boundary
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