Distribution of particle size in suspension at various depths from San Pablo Bay and Grizzly Bay, California, 2020

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Rachel M. Allen
Publication_Date: 20210915
Title:

Distribution of particle size in suspension at various depths from San Pablo Bay and Grizzly Bay, California, 2020

Geospatial_Data_Presentation_Form: NetCDF files
Series_Information:

Series_Name: data release
Issue_Identification: doi:10.5066/P9N88U5G

Publication_Information:

Publication_Place:

Pacific Coastal and Marine Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9N88U5G
Online_Linkage:

https://www.sciencebase.gov/catalog/item/60a45570d34ea221ce45ed30

Larger_Work_Citation:

Citation_Information:

Originator: Samantha C. McGill
Originator: Jessica R. Lacy
Originator: Joanne C. T. Ferreira
Originator: Rachel M. Allen
Originator: Lukas WinklerPrins
Originator: Angela C. Tan
Publication_Date: 2021
Title:

Hydrodynamic and sediment transport data from San Pablo Bay and Grizzly Bay, California, 2020

Series_Information:

Series_Name: data release
Issue_Identification: doi:10.5066/P9N88U5G

Publication_Information:

Publication_Place:

Pacific Coastal and Marine Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/P9N88U5G

Description:

Abstract:

These data present suspended particle size distributions collected by the U.S. Geological Survey (USGS) Pacific Coastal and Marine Science Center within two embayments of San Francisco Bay. Data were collected at one site in San Pablo Bay and one site in Grizzly Bay from January through February 2020 by deploying a Sequoia Scientific Laser In-situ Scattering and Transmissometry instrument (LISST 200x) from a small vessel near pre-established USGS instrument moorings. At both sites, data were collected on four dates at three depths, generally near the water surface, at mid depth, and near the sediment bed, for 1-3 minutes at each depth. LISST volume concentrations are most accurate when the optical percent transmission is above 30; when this is true, light passing through the sample volume is unlikely to be scattered by more than one particle. These files contain all samples collected; judgment should be applied when using them. Users are advised to check metadata and instrument information carefully for applicable time periods of specific data.

Purpose:

These data were collected for the purpose of estimating particle settling velocity. 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.

Supplemental_Information:

Additional information about the field activity from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2020-603-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government .

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20200122
Ending_Date: 20200226

Currentness_Reference: Ground condition at time data were collected.

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.6160
East_Bounding_Coordinate: -121.9456
North_Bounding_Coordinate: 38.17843
South_Bounding_Coordinate: 37.95883

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine water quality
Theme_Keyword: suspended material (water)

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Water-Quality Parameters

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: sediment
Theme_Keyword: marine geology

Theme:

Theme_Keyword_Thesaurus: none
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC
Theme_Keyword: Suspended-sediment concentration
Theme_Keyword: Shallow-water habitat
Theme_Keyword: Tidal shallows

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:60a45570d34ea221ce45ed30

Place:

Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: State of California
Place_Keyword: Grizzly Bay
Place_Keyword: San Pablo Bay
Place_Keyword: San Francisco Bay

Access_Constraints: None
Use_Constraints:

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 as the originators of the dataset and in products derived from these data. This information is not intended for navigation purposes.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Person: PCMSC Science Data Coordinator

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060-5792
Country: US

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/60a45570d34ea221ce45ed30?name=ERO20_study_area.jpg&allowOpen=true

Browse_Graphic_File_Description:

Digital elevation model (DEM) of study area showing locations of USGS moorings in San Pablo Bay (PBM) and Grizzly Bay (GBM).

Browse_Graphic_File_Type: JPEG

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

No formal attribute accuracy tests were conducted. LISST volume concentrations are most accurate when the optical percent transmission is above 30; when this is true, light passing through the sample volume is unlikely to be scattered by more than one particle. These files contain all samples collected; judgment should be applied when using them. Users are advised to check metadata and instrument information carefully for applicable time periods of specific data.

Logical_Consistency_Report:

No formal logical accuracy tests were conducted. Data fall within expected ranges.

Completeness_Report:

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.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Horizontal accuracy derived from the boat’s GPS instrumentation is less than 5 m.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

Vertical positioning is reported within each data file as pressure from the water surface. Accuracy depends on the presence of waves, and calibration and sensitivity of the pressure sensor, and resulted in combined uncertainty of about 15 cm. Depth above bottom can be computed by referencing the collection time and the total water depth reported in the time series files.

Lineage:

Process_Step:

Process_Description:

Profiles were collected in Grizzly Bay and San Pablo Bay using the Sequoia Scientific LISST-200X, near the Grizzly Bay Mooring site (GBM) and the San Pablo Bay Mooring site (PBM). The LISST-200x was vertically oriented, such that the pressure sensor was 43.5 cm above the optics. For each profile, the instrument was equilibrated to water temperature for at least 5 minutes. Then, the sampling targeted depths of approximately 0.3 meters below the surface (mbs), mid-water column, and 0.5 meters above bed (mab), with the instrument at each target depth for at least 1 minute. The targeted depths, in meters below surface (mbs), in consecutive order, for each trip and Bay, are as follows: PBP trip 09: 0.3 mbs, 0.6 mbs, 1.3 mbs, 2.6 mbs, 2.45 mbs. GBP trip 09: 0.3 mbs, 0.6 mbs, 1.2 mbs, 2.0 mbs, 1.55 mbs. PBP trip 10: 0.3 mbs,1.5 mbs,3 mbs. GBP trip 10: 0.3 mbs, 1.2 mbs, 2.0 mbs. PBP trip 11: 0.3 mbs,0.7 mbs,1.5 mbs. GBP trip 11:0.3 mbs, 0.7 mbs, 1.1 mbs. PBP trip 12: 1.6 mbs, 1.35 mbs, 0.8 mbs, 0.3 mbs. GBP trip 12:0.75 mbs, 1.0 mbs, 0.3 mbs.

Process_Date: 20200226

Process_Step:

Process_Description:

Data were accumulated into NetCDF files. Out-of-water data were removed from the files.

Process_Date: 20210601

Process_Step:

Process_Description:

Files were named with a convention that uses a 12-digit alpha-numeric code. The first three characters for this dataset are all 'ERO' for the experiment name; the fourth and fifth positions represent the calendar year in which the first data point in the file was taken (20, 2020); the sixth and seventh characters are an alphabetic code for the embayment (for example, GB refers to Grizzly Bay) the eighth character is 'P', to represent the method of collection used (Profiling). The ninth and tenth characters represent the time index of the profile, starting at 09 for the first profile, and ending at 12 for the last one. The eleventh and twelfth characters are "ls" for the Sequoia Scientific LISST-200X. Data from San Pablo Bay and data from Grizzly Bay are provided in separate zip files.

Process_Date: 20210601

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

Data were collected at each site and each depth for 1-3 minutes. Refer to self-contained NetCDF files for more location information.

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 1.0E-5
Longitude_Resolution: 1.0E-5
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: World Geodetic System 1984 (WGS84)
Ellipsoid_Name: WGS84
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

NetCDF files are self-contained and attribute information may be found in the header of the file itself.

Entity_and_Attribute_Detail_Citation:

The entity and attribute information was generated by the individual and/or agency identified as the originator of the data set. Please review the rest of the metadata record for additional details and information.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey - ScienceBase

Contact_Address:

Address_Type: mailing and physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

These data are available in zipped NetCDF format and are accompanied by CSDGM FGDC-compliant metadata.

Distribution_Liability:

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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: NetCDF
Format_Version_Number: Matlab (v 2015b and 2020a)
Format_Specification: Data are in NetCDF formats.
Format_Information_Content: Downloadable zip file contains NetCDF (.nc) files.
File_Decompression_Technique: WinZip or archive utility
Transfer_Size: 1.61

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/60a45570d34ea221ce45ed30?name=ERO20_Suspended_particle_profiles_GBP.zip

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/60a2c4b3d34ea221ce432ce3

Network_Resource_Name: https://doi.org/10.5066/P9N88U5G

Access_Instructions:

Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of suspended particle size distribution data for Grizzly Bay. The second link points to a landing page with the LISST data, metadata, and a sample location map for both study sites. The third link points to the landing page for the entire data release, including links to pages of the various data files.

Fees: None

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/60a45570d34ea221ce45ed30?name=ERO20_Suspended_particle_profiles_PBP.zip

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/60a2c4b3d34ea221ce432ce3

Network_Resource_Name: https://doi.org/10.5066/P9N88U5G

Access_Instructions:

Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of suspended particle size distribution data for San Pablo Bay. The second link points to a landing page with the LISST data, metadata, and a sample location map for both study sites. The third link points to the landing page for the entire data release, including links to pages of the various data files.

Fees: None

Technical_Prerequisites:

The downloadable data file has been compressed with the "zip" command and can be unzipped with Winzip or other archive utilities. To utilize these data, the user must have software capable of uncompressing the WinZip file and importing and viewing a NetCDF file. These data can be viewed with the NOAA netCDF file viewer, ncBrowse, which can be downloaded from the internet at https://www.pmel.noaa.gov/epic/java/ncBrowse.

Metadata_Reference_Information:

Metadata_Date: 20210915
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: PCMSC Science Data Coordinator
Contact_Organization:

U.S. Geological Survey, Pacific Coastal and Marine Science Center

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States

Contact_Voice_Telephone: 831-427-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P9N88U5G/ERO20_Suspended_particle_profiles_metadata.html>