Modeling and Monitoring A robust numerical modeling approach has been initiated to assist in refining the design of the reef and headlands. A Boussinesq wave model has been set up to screen and test different sand retention pilot layout designs. Wave processes such as shoaling, refraction, currents, and breaking waves are being modeled in high detail. These parameters will be used to inform the selection of an initial reef alignment, reef crest elevation, width and length, and spacing of the headlands and reef. As an iterative process, results of this modeling will be used to refine conceptual designs and help narrow down a subset of reef layouts to be incorporated into future morphological modeling. Two acoustic doppler current profilers (ADCPs) were placed in mid-March offshore pilot project location between Tyson Street and Wisconsin Avenue. These ADCPs measure water current using the Doppler effect of sound waves. Essentially these instruments can measure currents and will support an enhanced understanding of the wave climate and wave-driven currents. The data will be used to calibrate our numerical models, which aid refinement of the design of the artificial reef and headlands. Calibrating our models with monitoring data gives us more confidence that the models are accurately reflecting ocean conditions. On Wednesday, April 9th, 2025, the Coastal Commission unanimously awarded the City of Oceanside with a grant that will cover enhanced baseline monitoring for RE:BEACH, and the development of future policy documents for long-term planning for coastal management. Baseline monitoring and beach volume surveys have been ongoing since 2020, thanks to the monthly transect surveys performed by Save Oceanside Sand. With this grant, however, baseline surveys shall be enhanced with the following tasks, which will elevate our understanding of the coastal condition in and around the project study area:
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