For general sedimentation information:
Notes on the Morro Bay topobathy lidar map:
When utilizing mapping data, it is important to understand the error associated with the collection of the data. The historic data was from NOAA, and the following information was provided for the data set:
- Note: This data set was created by merging topographic LIDAR from the 2009-2011 CA Coastal Conservancy Lidar: Coastal California data set, 2009-2010 USACE JALBTCX topobathy LIDAR, and multibeam data provided by the California Seafloor Mapping Program (CSMP) Ocean Protection Council and NOAA NCEI. The vertical accuracy is dependent upon the specific data set and the value listed here may not be representative of all areas. There are two versions of this data set, one with voids and one where voids have been interpolated. This is the interpolated data.
- Vertical Accuracy (cm): 15 – Not tested
- Horizontal Accuracy (cm): 300 – Not tested
- Data classes available:
- Tide controlled: Yes
For the 2019 survey, the accuracy information is as follows:
- LiDAR Non-Vegetated Vertical Accuracy: 0.035 meters
- Bathymetric Vertical Accuracy for Submerged Points: 0.101 m
- Bathymetric Vertical Accuracy for Wetted Edge Points: 0.058 m
- LiDAR Relative Vertical Accuracy: 0.025 m
- The survey data meets the National Standard for Spatial Data Accuracy.
The 2019 survey has substantially better accuracy than the historic information collected in 2009 to 2011.
Morro Bay Sediment Total Maximum Daily Load: https://www.waterboards.ca.gov/centralcoast/water_issues/programs/tmdl/docs/morro/sediment/
Karen Thorne publication on sea level rise impacts on tidal marshes: https://pubs.er.usgs.gov/publication/ofr20161125
The SLR impacts on Morro Bay’s tidal marsh were analyzed with the WARMER model and three NRC sea level rise scenarios.