Saltwater Infiltration

DETAILS ABOUT RESEARCH DATA USED IN THE LIVABILITY TOOL

Modeler(s): Hanne Borstlap, Larry Band, Qingguang Zhu, Patricia Wiberg
Model: RHESSys & ADCIRC

Model inputs: ADCIRC projections of inundation depths, terrain, soils, climate information

Model outputs + units: Infiltration of fresh and salt water from surge 

Display in the Livability Tool: Infiltration rates from selected surge levels aggregated by elevation bands above a defined sea level datum.

How future scenarios will be determined (projections to 2100): 
Models re-simulated with projected future storm surge levels for chosen events.
With and without scenario ditch network expansion or abandonment
Construction, maintenance or ponds as irrigation water supply

Smallest scale of model outputs: 10-30m

Limitations/caveats: Need to resolve occurrence of hypothetical future surges with projected climate conditions as the latter will impact antecedent conditions. At present, we are using current land use and we should resolve if there will be projections of land use change. For now, we are assuming these will not be included.

Now we need interaction with the Agricultural Extension Office and Soil & Water Conservation personnel on commonly perceived concerns with hydroclimate extremes, what mitigation practices are currently active, and what plans or questions on potential future practices for mitigation and adaptation.