Title
Consider recommendation from the Research & Technology Committee to approve an Interlocal Cooperation Contract with The University of Texas at Austin, in an amount not to exceed $165,299.43, for a historical climate variability study.
Body
RECOMMENDED MOTION:
Move the board adopt Resolution and Order No. 04-26-141 of the Edwards Aquifer Authority Board of Directors approving Contract No. 26-007-AMS between the EAA and the University of Texas at Austin, in an amount not to exceed $165,299.43, upon signature by both parties, through December 31, 2027.
SUMMARY:
The purpose of this agenda item is for the board to consider a Research & Technology Committee recommendation to approve a contract between the EAA and the University of Texas at Austin for a historical climate variability study. The project will develop multi-century tree-ring records using bald cypress trees to improve understanding of long-term climate variability and its influence on streamflow and recharge within the Edwards Aquifer region. The work focuses on filling critical geographic data gaps and establishing a west-east transect to better capture spatial differences in precipitation, drought patterns, and hydrologic response.
Key tasks include:
· Field Sampling: Collection of tree-ring cores from riparian sites across the eastern, central, and western Edwards Aquifer region, including permitting and site access.
· Chronology Development: Processing, measuring, and cross-dating samples to create and expand tree-ring chronologies, including development of new datasets in underrepresented western areas.
· Environmental Reconstruction: Application of statistical methods to reconstruct historical seasonal climate conditions and streamflow for major recharge rivers (e.g., Frio, Medina, Cibolo, and Blanco).
· Spatial Analysis: Evaluation of east-west differences in climate variability and aquifer recharge dynamics, including assessment of shifting aridity gradients.
· Reporting: Preparat...
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