AKA: none
Other ID: none
Status: Completed
Organization(s): USGS, Pacific Coastal and Marine Science Center
Funding Program(s): Other (Other)
Principal Investigator(s): Amy East
Affiliate Investigator(s):
Information Specialist(s): Andrew Ritchie
Data Type(s): Location-Elevation: Navigation, Sampling: Geology
Scientific Purpose/Goals: Collect suspended-sediment samples from a bridge-mounted sampling station on the San Lorenzo River (pedestrian bridge between Water St and Soquel Ave), opposite the downtown Trader Joe's. We intend to sample every hour or two (more often on the highest flows) throughout rainfall events as part of a multi year study of how antecedent conditions affect coastal watershed sediment yield in this area.
Vehicle(s): None
Start Port/Location: none
End Port/Location: none
Start Date: 2008-11-02
End Date: 2024-09-30
Equipment Used: GPS, samples
Information to be Derived: suspended sediment/sediment transport in river
Summary of Activity and Data Gathered: Collected 384 water samples between water-years 2009 and 2024 that were processed at CA Water Science Center field station in Santa Cruz for suspended-sediment concentration and sand break.
Staff: Amy East, Andrew Ritchie
Affiliate Staff:
Notes: Data spanned the wettest water-year on record for the San Lorenzo watershed.
Location:
San Lorenzo River, Santa Cruz, CA
| Boundaries | |||
|---|---|---|---|
| North: 37.02667673 | South: 36.95533083 | West: -122.09518433 | East: -121.98410034 |
Platform(s):
 on foot |
Campbell, P.L., East, A.E., and Conaway, C.H., 2022, Polycyclic aromatic hydrocarbons (PAHs) and suspended sediment concentrations in the San Lorenzo River, Santa Cruz, California, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9GB8YSZ.
East, A.E., and Ritchie, A.C., 2024, Suspended-sediment concentration and grain size in the San Lorenzo River, coastal California: U.S. Geological Survey data release, https://doi.org/10.5066/P1AFJX8M.
| Survey Equipment | Survey Info | Data Type(s) | Data Collected |
|---|---|---|---|
| GPS | --- | Navigation | |
| samples | --- | Biology Chemistry Geology | Suspended sediment concentration (SSC) from 2008 to 2019 (Suspended-sediment concentrations are reported in mg/L for water samples collected from the San Lorenzo River during the rainy seasons from 2008 to 2019. Samples were collected during 2-, 5- and 10-year flood events.) Polycyclic aromatic hydrocarbons (PAHs) in the San Lorenzo River, Santa Cruz, California, USA, from 2015 to 2016 (Polycyclic aromatic hydrocarbons (PAHs) are reported for water samples collected from the San Lorenzo River water during the rainy seasons from 2015 to 2016. Samples were collected during 2-, 5- and close to 10 year flood events.) Suspended-sediment concentration and grain size in the San Lorenzo River, coastal California (Water samples were collected from the San Lorenzo River, Santa Cruz, California, and analyzed for suspended-sediment concentration and sand break (proportion of sand vs. silt-plus-clay) at the U.S. Geological Survey (USGS) laboratory in Santa Cruz, California.) |
