Bed-sediment grain-size and morphologic data from Suisun, Grizzly, and Honker Bays, CA 1998-2002

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Margaret A. Hampton
Originator: Noah P. Snyder
Originator: John L. Chin
Originator: Dan W. Allison
Originator: David M. Rubin
Publication_Date: 2003
Title:
Bed-sediment grain-size and morphologic data from Suisun, Grizzly, and Honker Bays, CA 1998-2002
Geospatial_Data_Presentation_Form: Digital
Series_Information:
Series_Name: Open-file report
Issue_Identification: 03-250
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Data from USGS cruises J598SF (<http://walrus.wr.usgs.gov/infobank/j/j598sf/html/j-5-98-sf.meta.html>), J299SF (<http://walrus.wr.usgs.gov/infobank/j/j299sf/html/j-2-99-sf.meta.html>), J399SF (<http://walrus.wr.usgs.gov/infobank/j/j399sf/html/j-3-99-sf.meta.html>), J100SF (<http://walrus.wr.usgs.gov/infobank/j/j100sf/html/j-1-00-sf.meta.html>), P100SF (<http://walrus.wr.usgs.gov/infobank/p/p100sf/html/p-1-00-sf.meta.html>), P200SF (<http://walrus.wr.usgs.gov/infobank/p/p200sf/html/p-2-00-sf.meta.html>), P101SF (<http://walrus.wr.usgs.gov/infobank/p/p101sf/html/p-1-01-sf.meta.html>), P201SF (<http://walrus.wr.usgs.gov/infobank/p/p201sf/html/p-2-01-sf.meta.html>), P301SF (<http://walrus.wr.usgs.gov/infobank/p/p301sf/html/p-3-01-sf.meta.html>), P401SF (<http://walrus.wr.usgs.gov/infobank/p/p401sf/html/p-4-01-sf.meta.html>), and P102SF (<http://walrus.wr.usgs.gov/infobank/p/p102sf/html/p-1-02-sf.meta.html>.
Online_Linkage: <http://geopubs.wr.usgs.gov/open-file/of03-250/of03-250.pdf>
Description:
Abstract:
"The USGS Place Based Studies Program for San Francisco Bay investigates this sensitive estuarine system to aid in resource management. As part of the inter-disciplinary research program, the USGS collected side-scan sonar data and bed-sediment samples from north San Francisco Bay to characterize bed-sediment texture and investigate temporal trends in sedimentation. The study area is located in central California and consists of Suisun Bay, and Grizzly and Honker Bays, sub-embayments of Suisun Bay. During the study (1998-2002), the USGS collected three side-scan sonar data sets and approximately 300 sediment samples. The side-scan data revealed predominantly fine-grained material on the bay floor. We also mapped five different bottom types from the data set, categorized as featureless, furrows, sand waves, machine-made, and miscellaneous. We performed detailed grain-size and statistical analyses on the sediment samples. Overall, we found that grain size ranged from clay to fine sand, with the coarsest material in the channels and finer material located in the shallow bays. Grain-size analyses revealed high spatial variability in size distributions in the channel areas. In contrast, the shallow regions exhibited low spatial variability and consistent sediment size over time."
Purpose:
" ........ to characterize bed-sediment texture and investigate temporal trends in sedimentation."
Supplemental_Information:
Specific cruise identifications with links to metadata provided by the USGS Coastal and Marine Geology team's Infobank are given in table 1 of the report. Data included in usSEABED (<http://walrus.wr.usgs.gov/usseabed>)
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19981125
Ending_Date: 20020123
Currentness_Reference: Publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.14047
East_Bounding_Coordinate: -121.93249
North_Bounding_Coordinate: 38.15529
South_Bounding_Coordinate: 38.03148
Keywords:
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: Oceans and Estuaries
Theme_Keyword: Location
Theme_Keyword: GeoscientificInformation
Theme:
Theme_Keyword_Thesaurus:
NASA/Global Change Master Directory (GCMD) Earth Science Keyword. Version 5.3.3
Theme_Keyword: Marine Sediments
Theme_Keyword: Sedimentary Textures
Theme_Keyword: Terrigenous Sediments
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Place Based Studies for San Francisco Bay
Theme_Keyword: Box core
Theme_Keyword: Van Veen grab sampler
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Suisun Bay
Place_Keyword: Grizzly Bay
Place_Keyword: Honker Bay
Place_Keyword: California
Access_Constraints:
Report is available online in PDF format; Adobe Acrobat Reader required to view.
Use_Constraints: Cite the U.S. Geological Survey as the originators of the data.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: United States Geological Survey
Contact_Address:
Address_Type: Mail
Address: USGS Information Services
Address: Box 25286
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-800-ASK-USGS
Browse_Graphic:
Browse_Graphic_File_Name: OFR_03-250
Browse_Graphic_File_Description:
Screen grab of GIS-produced sample distribution, with bathymetry and land for reference.
Browse_Graphic_File_Type: JPG
Data_Set_Credit:
Margaret A. Hampton, Noah P. Snyder, John L. Chin, Dan W. Allison, David M. Rubin at the United States geological Survey for the collection and analysis of the data. For usSEABED, formatting: Jane Reid (USGS); Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado)
Native_Data_Set_Environment:
Tkme: Another editor for formal metadata by Peter N. Schweitzer (U.S. Geological Survey, Reston, VA 22092), version 2.9.13, Microsoft Windows Version 5.1; Microsoft Word 2000 9.0

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
See report ://geopubs.wr.usgs.gov/open-file/of03-250/of03-250.pdf. For usSEABED, digitized data were incorporated as is. Where appropriate, data were tested for completeness using MS Excel. Locations checked using GIS.
Logical_Consistency_Report:
From the report: "In order to facilitate comparisons between the samples, we omitted the coarsest material (>1 mm) from the RV Johnston samples for the computer analysis. We made this change for two reasons: 1) this size category was processed using different methods at various times during the study, and therefore not quantitatively comparable; and 2) we found that in nearly every case the coarsest material was predominately composed of shells and not elastic sediment. By omitting this category from the analysis, we aided comparisons between the data sets, and reduced skewing of the statistics by non-bed-sediment material. However, we chose not to omit this size fraction from the RV Polaris analyses due to the consistent methodology used in processing the samples."
Completeness_Report:
See report. For inclusion into usSEABED, all data in the report were included.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
See report <http://geopubs.wr.usgs.gov/open-file/of03-250/of03-250.pdf>
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
See report <http://geopubs.wr.usgs.gov/open-file/of03-250/of03-250.pdf>
Lineage:
Process_Step:
Process_Description:
See report: <http://geopubs.wr.usgs.gov/open-file/of03-250/of03-250.pdf>
Process_Date: Unknown

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 280

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00001
Longitude_Resolution: 0.00001
Geographic_Coordinate_Units: Decimal degrees

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Point
Entity_Type_Definition: SDTS point
Entity_Type_Definition_Source: Source report
Attribute:
Attribute_Label: Sample number
Attribute_Definition: Sample number
Attribute_Definition_Source: US Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Alpha numeric number based on cruise and core information
Attribute:
Attribute_Label: Subsample depth
Attribute_Definition: Depth of subsample within sample (top = 0)
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 0.01
Attribute_Units_of_Measure: Meters
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Gravel
Attribute_Definition: Amount of gravel in subsample
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 16.45
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Sand
Attribute_Definition: Amount of sand in subsample
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.17
Range_Domain_Maximum: 99.51
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Silt
Attribute_Definition: Amount of silt in subsample
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.35
Range_Domain_Maximum: 72.32
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Clay
Attribute_Definition: Amount of clay in subsample
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.09
Range_Domain_Maximum: 69.85
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Mud
Attribute_Definition: Amount of mud in subsample
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.49
Range_Domain_Maximum: 99.83
Attribute_Units_of_Measure: Percent
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Median
Attribute_Definition: Median grain size
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.1
Range_Domain_Maximum: 9.34
Attribute_Units_of_Measure: Phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Mean
Attribute_Definition: First moment of grain-size distribution (mean)
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.21
Range_Domain_Maximum: 9.54
Attribute_Units_of_Measure: Phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Sorting
Attribute_Definition: Second moment of grain-size distribution (standard deviation)
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.58
Range_Domain_Maximum: 3.8
Attribute_Units_of_Measure: Phi
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Skewness
Attribute_Definition: Third moment of grain-size distribution (skewness)
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1.02
Range_Domain_Maximum: 5.74
Attribute_Units_of_Measure: Unitless
Attribute_Measurement_Resolution: 0.01
Attribute:
Attribute_Label: Kurtosis
Attribute_Definition: Fourth moment of grain-size distribution (kurtosis)
Attribute_Definition_Source: Source report
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.65
Range_Domain_Maximum: 73.13
Attribute_Units_of_Measure: Unitless
Attribute_Measurement_Resolution: 0.01

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: United States Geological Survey
Contact_Address:
Address_Type: Mail
Address: USGS Information Services
Address: Box 25286
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-800-ASK-USGS
Resource_Description: Open file report 03-250
Distribution_Liability:
Although this dataset has been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data. Users of the data should be aware of limitations of the data due to possible imprecision due to navigational inaccuracies and limitations of the statistical data.
Standard_Order_Process:
Non-digital_Form:
Report is available through the USGS; available online at: <http://geopubs.wr.usgs.gov/open-file/of03-250/of03-250.pdf>
Fees: None
Technical_Prerequisites:
Adobe Acrobat required: Download: <http://www.adobe.com/products/acrobat/readermain.html>
Available_Time_Period:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2003

Metadata_Reference_Information:
Metadata_Date: 2005
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Jane A. Reid
Contact_Position: Geologist
Contact_Address:
Address_Type: Physical and mail
Address: 400 Natural Bridges Drive
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Contact_Voice_Telephone: 831-427-4727
Contact_Electronic_Mail_Address: jareid@usgs.gov
Contact_Instructions: Email preferred
Metadata_Standard_Name: CSDGM Version 2
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Access_Constraints: None
Metadata_Use_Constraints:
Metadata was written by a user of the data. Any information contained in the physical report is authoritative and supercedes any information given here.


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