Total suspended solids and particle size distributions from grab samples collected during four 0.25-day profiling periods in south San Francisco Bay, California, summer 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
Originator: Samantha C. McGill
Originator: Angela C. Tan
Publication_Date: 20211015
Title:

Total suspended solids and particle size distributions from grab samples collected during four 0.25-day profiling periods in south San Francisco Bay, California, summer 2020

Geospatial_Data_Presentation_Form: comma-delimited text
Series_Information:

Series_Name: data release
Issue_Identification: doi:10.5066/P99Q4CHM

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/P99Q4CHM
Online_Linkage:

https://www.sciencebase.gov/catalog/item/602a9a2ed34eb1203113b18e

Larger_Work_Citation:

Citation_Information:

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

Hydrodynamic, sediment transport, and sediment flocculation data from south San Francisco Bay, California, summer 2020

Series_Information:

Series_Name: data release
Issue_Identification: doi:10.5066/P99Q4CHM

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/P99Q4CHM

Description:

Abstract:

Water samples were collected in south San Francisco Bay on four days in July 2020. The water samples were collected near pre-established USGS instrument moorings with a Niskin bottle, lowered from the R/V Snavely. Data are provided in comma-delimited values spreadsheets.

Purpose:

These data were collected to calibrate turbidity data from optical backscatter sensors to total suspended solids. Selected samples were also analyzed visually for particle size and settling velocity using the FlocCam. They were collected as part of a study by the USGS Coastal and Marine Hazards and Resources Program, funded by the San Francisco Estuary Institute, investigating physical drivers of sediment flocculation. 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=2020-621-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: 20200721
Ending_Date: 20200728

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.1788
East_Bounding_Coordinate: -122.1669
North_Bounding_Coordinate: 37.5490
South_Bounding_Coordinate: 37.5413

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:3690ce71-c380-4093-84e2-e2e274a3a4cd

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans

Theme:

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

Theme:

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

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: water sampling
Theme_Keyword: field observation
Theme_Keyword: physical oceanography

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: USGS
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: PCMSC
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: CMHRP
Theme_Keyword: Coastal and Marine Hazards and Resources Program

Place:

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

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 (USGS) as the originator of the dataset and in products derived from these data.

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

Contact_Voice_Telephone: 831-460-4747
Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/602a9a2ed34eb1203113b18e?name=CSF20_SiteMapjpg&allowOpen=true

Browse_Graphic_File_Description:

Map of study area showing locations of USGS moorings in San Francisco South Bay.

Browse_Graphic_File_Type: JPG

Cross_Reference:

Citation_Information:

Originator: Andrew J. Manning
Originator: K. R. Dyer
Publication_Date: 2007
Title:

Mass settling flux of fine sediments in Northern European estuaries: Measurements and predictions

Series_Information:

Series_Name: Journal article
Issue_Identification: Marine Geology, v. 245, n. 1-4, p. 107-122

Publication_Information:

Publication_Place: Netherlands
Publisher: Elsevier

Online_Linkage: https://doi.org/10.1016/j.margeo.2007.07.005

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

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

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 GPS instrumentation is less than 5 m.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: No formal positional accuracy tests were conducted

Lineage:

Process_Step:

Process_Description:

Water samples were collected in July, 2020 using a Niskin bottle. Sampling positions were recorded using a boat-mounted global navigation satellite system (GNSS) receiver. Samples were placed in cold storage until processed. Additional video imagery was collected of selected samples consistent with methods for FlocCam analysis.

Process_Date: 20200728

Process_Step:

Process_Description:

The total suspended solids were determined in the USGS Pacific Coastal and Marine Science Center sediment lab. Total suspended solids were determined by 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.

Process_Date: 20200902

Process_Step:

Process_Description:

Total suspended solids were calculated by subtracting the weight of the filter from the weight of the reweighed (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.

Process_Date: 20200902

Process_Step:

Process_Description:

Particle size, settling velocity, and effective density of individual flocs was computed visually from the video images, consistent with methods for the FlocCam (Manning and Dyer, 2007).

Process_Date: 20210901

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Data were collected in south San Francisco Bay, California
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 99

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:

Detailed_Description:

Entity_Type:

Entity_Type_Label: CSF20_TSS_water_sample_data.csv
Entity_Type_Definition:

Table containing attribute information associated with the dataset

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: FAN_ID
Attribute_Definition: Unique U.S. Geological Survey field activity number (FAN).
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique U.S. Geological Survey field activity number (FAN).

Attribute:

Attribute_Label: SampleID
Attribute_Definition:

Sample identifier for sediment lab in WX-YY format, where WX is the 2-digit sample/site identifier (for example WC=Water Channel, WS=Water Shallows) and YY is a sequential number given to the sample in the lab.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique identifier for samples; assigned in the sediment lab.

Attribute:

Attribute_Label: DateCollected
Attribute_Definition: Date in month/day/year format of sample collection.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 07/21/2020
Range_Domain_Maximum: 07/28/2020
Attribute_Units_of_Measure: Date in month/day/year format

Attribute:

Attribute_Label: Time(PDT)
Attribute_Definition:

Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT).

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 07:05:47
Range_Domain_Maximum: 15:36:00
Attribute_Units_of_Measure: hours:minutes:seconds format, Pacific Daylight Time (PDT)

Attribute:

Attribute_Label: WaterColumnLocation(mbs)
Attribute_Definition:

The depth below the surface of the water, in meters, that the sample was collected from.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 13
Attribute_Units_of_Measure: meters below water surface

Attribute:

Attribute_Label: Latitude
Attribute_Definition:

Latitude of sample location in decimal degrees, north, in WGS84 horizontal datum.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 37.54217
Range_Domain_Maximum: 37.54740
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: Longitude
Attribute_Definition:

Longitude of sample location in decimal degrees, east, in WGS84 horizontal datum.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -122.17661
Range_Domain_Maximum: -122.16910
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: SampleNotes
Attribute_Definition:

Relevant information regarding the sample during its collection or processing. "NA" indicates no sample notes were taken

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique note of relevant information regarding sample

Attribute:

Attribute_Label: AliquotVolume(mL)
Attribute_Definition: The volume of sample used for the analysis.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 59
Range_Domain_Maximum: 255
Attribute_Units_of_Measure: milliliters

Attribute:

Attribute_Label: SedimentWt(mg)
Attribute_Definition: The weight of the sediment.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.48
Range_Domain_Maximum: 19.50
Attribute_Units_of_Measure: milligrams

Attribute:

Attribute_Label: TotalSuspendedSolids(mg/L)
Attribute_Definition: The total suspended solids from the sample.
Attribute_Definition_Source: producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 12.58
Range_Domain_Maximum: 165.53
Attribute_Units_of_Measure: milligram per liter

Detailed_Description:

Entity_Type:

Entity_Type_Label: FlocCamSample_SummaryInformation.csv
Entity_Type_Definition:

Table containing attribute information associated with the dataset

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: FlocCamFileName
Attribute_Definition:

File name of the original video recorded in the field with raw FlocCam images.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique identifier for samples; assigned in the field.

Attribute:

Attribute_Label: Site
Attribute_Definition: Site of sample collection.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Descriptor of sample collection location; assigned in the field.

Attribute:

Attribute_Label: DateCollected
Attribute_Definition: Date in month/day/year format of sample collection.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 07/22/2020
Range_Domain_Maximum: 07/22/2020
Attribute_Units_of_Measure: Date in month/day/year format

Attribute:

Attribute_Label: TimeSampleCollected
Attribute_Definition:

Time of sample collection, in hours:minutes:seconds format, Pacific Daylight Time (PDT),

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 08:22:20
Range_Domain_Maximum: 12:55:17
Attribute_Units_of_Measure: hours:minutes:seconds format, Pacific Daylight Time (PDT)

Attribute:

Attribute_Label: AJMFlocCamSampleNumber
Attribute_Definition:

Sample number assigned in processing by AJ Manning. Matches the last 3 characters of each SCATTER_ D_Ws_Den - SXX.csv.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: Unique identifier for samples; assigned in the lab.

Attribute:

Attribute_Label: TSSSampleID
Attribute_Definition:

Sample number of associated TSS sample collected simultaneously.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Unrepresentable_Domain: Cross-reference indentifier to locate associated TSS sample.

Attribute:

Attribute_Label: TSS(mg/l)
Attribute_Definition: Approximate value of associated TSS.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 20
Range_Domain_Maximum: 115
Attribute_Units_of_Measure: milligram per liter

Attribute:

Attribute_Label: SampleDepth
Attribute_Definition:

The depth below the surface of the water, in meters, that the sample was collected from.

Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 12
Attribute_Units_of_Measure: meters below water surface

Detailed_Description:

Entity_Type:

Entity_Type_Label: SCATTER_ D_Ws_Den_SXX.csv
Entity_Type_Definition:

Table containing floc information contained in sample SXX, where SXX represents the sample number defined in FlocCamSample_SummaryInformation.csv, field "AJMFlocCamSampleNumber".

Entity_Type_Definition_Source: Producer defined

Attribute:

Attribute_Label: Size(microns)
Attribute_Definition: Measured floc size.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 35
Range_Domain_Maximum: 578
Attribute_Units_of_Measure: micrometers

Attribute:

Attribute_Label: EffectiveDensity(kg/m^3)
Attribute_Definition: Effective density of floc.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 9
Range_Domain_Maximum: 1590
Attribute_Units_of_Measure: kg/m^3

Attribute:

Attribute_Label: Ws(mm/s)
Attribute_Definition: Settling velocity of floc.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.078
Range_Domain_Maximum: 25
Attribute_Units_of_Measure: mm/s

Attribute:

Attribute_Label: FractalDimension(nf)
Attribute_Definition: Floc fractal dimension.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.64
Range_Domain_Maximum: 3.1
Attribute_Units_of_Measure: NA

Attribute:

Attribute_Label: Height_Width_ratio
Attribute_Definition: Ratio of floc height to width.
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.29
Range_Domain_Maximum: 13.1
Attribute_Units_of_Measure: NA

Attribute:

Attribute_Label: Porosity(%)
Attribute_Definition: Floc porosity
Attribute_Definition_Source: Producer defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27
Range_Domain_Maximum: 99
Attribute_Units_of_Measure: percent

Overview_Description:

Entity_and_Attribute_Overview:

CSF20_TSS_water_sample_data.csv contains water sample parameters; CSF20_FlocCam_data.zip contains csv files: one (FlocCamSample_SummaryInformation.csv) representing an overview of the individual samples, and 18 files (SCATTER_ D_Ws_Den_SXX) each containing data. Please read the Entity and Attribute section for further details.

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_Person_Primary:

Contact_Person: U.S. Geological Survey - ScienceBase
Contact_Organization: U.S. Geological Survey

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: United States

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

Resource_Description:

These data are available in csv format 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: comma-delimited text
Format_Version_Number: Microsoft Excel 2002 (12527.20988) 64-bit
Format_Information_Content: file contains the csv table
File_Decompression_Technique: No compression applied
Transfer_Size: 0.0016

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/602a9a2ed34eb1203113b18e?name=CSF20_TSS_water_sample_data.csv

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/602a9a2ed34eb1203113b18e

Network_Resource_Name: https://doi.org/10.5066/P99Q4CHM

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 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.

Digital_Form:

Digital_Transfer_Information:

Format_Name: comma-delimited text
Format_Version_Number: Microsoft Excel 2002 (12527.20988) 64-bit
Format_Information_Content:

Downloadable zip file contains comma-delimited text (.csv) files.

File_Decompression_Technique: WinZip or archive utility
Transfer_Size: 0.0044

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/602a9a2ed34eb1203113b18e?name=CSF20_FlocCam_data.zip

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/602a9a2ed34eb1203113b18e

Network_Resource_Name: https://doi.org/10.5066/P99Q4CHM

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 FlocCam data and metadata. The second link points to a 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.

Fees: none

Technical_Prerequisites:

The data are 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.

Metadata_Reference_Information:

Metadata_Date: 20211015
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_P99Q4CHM/CSF20_TSS_water_sample_metadata.html>