Lukas WinklerPrins Jessica R. Lacy Angela C. Tan 20201231 comma-delimited text data release doi:10.5066/P9P7I65U Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/P9P7I65U https://www.sciencebase.gov/catalog/item/5f407b6682ce8df5b6cb71a4 Jessica R. Lacy Samantha C. McGill Joanne C. T. Ferreira Rachel M. Allen Lukas WinklerPrins Angela C. Tan 2020 Digital data release doi:10.5066/P9P7I65U Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/P9P7I65U Water samples were collected in San Pablo Bay and Grizzly Bay on five days from June through August 2019. The water samples were collected near pre-established USGS instrument moorings with a peristaltic pump or via a Niskin bottle, deployed off of a small vessel. Data are provided in a comma-delimited values spreadsheet. These data were collected to calibrate turbidity data from optical backscatter sensors to suspended-sediment concentration. They were collected as part of a collaborative study between the USGS Coastal and Marine Hazards and Resources Program, the USGS California Water Science Center, and the USGS Water Resource Mission Area investigating physical and biological controls on bed erodibility. These data are intended for researchers, students, policy makers, and the general public. Information about the data collection field activities can be found at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-625-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20190611 20190821 ground condition Complete None planned -122.39306 -122.04072 38.11671 38.07914 ISO 19115 Topic Category oceans Data Categories for Marine Planning Water-Quality Parameters USGS Thesaurus suspended material (water) field sampling water sampling marine water quality suspended material (water) Marine Realms Information Bank (MRIB) keywords water sampling None USGS U.S. Geological Survey PCMSC Pacific Coastal and Marine Science Center CMHRP Coastal and Marine Hazards and Resources Program USGS Metadata Identifier USGS:5f407b6682ce8df5b6cb71a4 Geographic Names Information System San Francisco Bay San Pablo Bay Grizzly Bay State of California None USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey (USGS) as the originator of the dataset and in products derived from these data. U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

2885 Mission Street

Santa Cruz CA 95060 831-460-4747 pcmsc_data@usgs.gov https://www.sciencebase.gov/catalog/file/get/5f407b6682ce8df5b6cb71a4?name=ERO19_study_area.jpg &allowOpen=true Digital elevation model (DEM) of study area showing locations of USGS moorings in San Pablo Bay (PBM) and Grizzly Bay (GBM). JPEG No formal attribute accuracy tests were conducted. Data fall within expected ranges. No formal logical accuracy tests were conducted. Data fall within expected ranges. Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Horizontal accuracy derived from GPS instrumentation is less than 5 m. No formal positional accuracy tests were conducted Water samples were collected from June, 2019 to August, 2019 using a peristaltic pump or Niskin bottle. Sampling positions were recorded using a hand-held global navigation satellite system (GNSS) receiver. Samples were placed in cold storage until processed. 20190821 The suspended sediment concentrations of the samples were determined in the USGS Pacific Coastal and Marine Science Center sediment lab. Suspended sediment concentrations were determined by a filtering a known volume of sample through a pre-weighed filter, which is then dried and reweighed to determine the mass of suspended sediment on the filter. 20190828 Suspended sediment concentrations were calculated by subtracting the weight of the filter from the weight of the reweight (post filtering) filter. The resulting weight (in milligrams) is divided by the volume of sample filtered (in liters) to get the concentration of suspended sediments. 20190828 Data were collected in San Pablo Bay and Grizzly Bay, California Point Point 99 1.0E-5 1.0E-5 Decimal degrees World Geodetic System 1984 (WGS84) WGS84 6378137.0 298.257223563 ERO19_SSC_water_sample_data.csv Table containing attribute information associated with the dataset Producer defined FAN ID Unique U.S. Geological Survey field activity number (FAN). Producer defined Unique U.S. Geological Survey field activity number (FAN). Lab ID Sample identifier for sediment lab in YY-FFFFF-XX format, where YY is the 2-digit year (for example 19=2019), FFFFF is the 5-digit field-activity-number (FAN) ID code, and XX is a sequential number given to the sample in the lab. "NA" indicates that no value was assigned. Producer defined Unique identifier for samples; assigned in the sediment lab. Date Collected Date in month/day/year format of sample collection. Producer defined 06/12/2019 08/21/2019 Date in month/day/year format Time (PDT) Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT). Producer defined 00:00:00 23:59:59 hours:minutes:seconds format, Pacific Daylight Time (PDT) Location Code identifying sampling locations. Producer defined GBM Grizzly Bay Mooring Producer defined GST Grizzly Bay Spider Tripod Producer defined PBM San Pablo Bay Mooring Producer defined PST San Pablo Bay Spider Tripod Producer defined SPB1 San Pablo Bay 1 Producer defined SPB2 San Pablo Bay 2 Producer defined GB1 Grizzly Bay 1 Producer defined GB2 Grizzly Bay 2 Producer defined Water column location The depth or elevation above the bed, that the sample was collected from, "NA" indicates that no value was calculated. Producer defined Values indicating sampling locations within the water column. Values followed by "cmbs" were collected in centimeters below the surface of the water. Values followed by cmab were collected in centimeters above the bed. Latitude Latitude of sample location in decimal degrees, north. Producer defined 38.07914 38.11671 Decimal degrees Longitude Longitude of sample location in decimal degrees, east. Producer defined -122.39306 -122.04072 Decimal degrees Method Method of sample collection Producer defined pumped Samples were collected using a peristaltic pump Producer defined grab Samples were collected using a Niskin bottle Producer defined Sample Notes Relevant information regarding the sample during its collection or processing. "NA" indicates no sample notes were taken Producer defined Unique note of relevant information regarding sample Aliquit Volume The volume of sample used for the analysis. "NA" indicates that no value was calculated. producer defined 49 243 milliliters Sediment Weight The weight of the sediment. "NA" indicates that no value was calculated. producer defined 2.4 44.7 milligrams Suspended Sediment Concentration mg/L The suspended sediment concentration from the sample. "NA" indicates that no value was calculated. producer defined 12.98 412.45 milligram per liter U.S. Geological Survey - ScienceBase U.S. Geological Survey mailing and physical

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Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov These data are available in csv format (ERO19_SSC_water_sample_data.csv) along with CSDGM FGDC-compliant metadata. Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. comma-delimited text Microsoft Excel 2002 (12527.20988) 64-bit zip file contains the csv table, associated metadata, and an image map of the study area No compression applied 0.00919 https://www.sciencebase.gov/catalog/file/get/5f407b6682ce8df5b6cb71a4 https://www.sciencebase.gov/catalog/item/5f407b6682ce8df5b6cb71a4 https://doi.org/10.5066/P9P7I65U Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data and metadata. The second link points to the landing page for the data and metadata. The third link points to the landing page for the entire data release, including links to pages of the various data files. None. The data is available in comma-separated values (CSV) spreadsheet format. Text editing software can be used to open the file, as well as spreadsheet programs, such as Microsoft Excel. 20201231 PCMSC Science Data Coordinator U.S. Geological Survey, Pacific Coastal and Marine Science Center mailing and physical

2885 Mission Street

Santa Cruz CA 95060 United States 831-427-4747 pcmsc_data@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998