The southern Monterey Bay littoral cell: A preliminary sediment budget study

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: Craig E. Dorman

Publication_Date: 1968

Title:

The southern Monterey Bay littoral cell: A preliminary sediment budget study

Geospatial_Data_Presentation_Form: Paper

Publication_Information:

Publication_Place: Monterey, CA

Publisher: United States Naval Postgraduate School

Description:

Abstract:

A sediment budget was developed for southern Monterey Bay, California. This budget is based heavily upon sediment information obtained from field and laboratory studies. These studies included a detailed quasi-synoptic areal sampling to determine distribution of textural patterns, and a time-series study of beach and surf-zone sand samples obtained from local sand-mining companies. Results from these studies were combined with data on river discharge, the wind and wave regimes, and shoreline changes during the past century to develop quantitative estimates of sediment gains and losses to the cell. It was determined that the major sources of sediment are the discharge from the Salinas River which empties into the northeast corner of the cell, and erosion of Quaternary seacliffs which form the inner bay shore. Major sinks are the Monterey Submarine Canyon, active coastal dune fields, the mining companies, and the offshore area. The recent history of the sediment regime in the southern bay is reviewed, and a forecast of future nearshore changes is made. Recommendations for further work needed to refine the budget computations are presented.

Purpose:

This study deals with the sedimentary environment and the movement of sediments in the southern portion of Monterey Bay, California. The primary purpose of the work was to outline the major factors contributing to the sand budget of the area and to correlate these factors with the present areal patterns of textural properties of the beach and nearshore surface sediments. Because of the magnitude of the task of undertaking a total sand budget study and the incomplete nature of some of the data, emphasis was placed on delineation of the area distribution and seasonal variability of sediment patterns and on littoral transport. Quantitative evaluation of credits and debits to the budget was in most cases quite tentative.

Supplemental_Information:

Data digitized by the USGS for inclusion into usSEABED (<http://walrus.wr.usgs.gov/usseabed>)

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1968

Currentness_Reference: Publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -121.9343

East_Bounding_Coordinate: -121.8178

North_Bounding_Coordinate: 36.6785

South_Bounding_Coordinate: 36.6021

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: U.S. Navy

Theme_Keyword: Postgraduate School

Theme_Keyword: NPS

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 Structures

Theme_Keyword: Sedimentary Textures

Theme_Keyword: Stratigraphic Sequence

Theme_Keyword: Terrigenous Sediments

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)

Place_Keyword: Monterey Bay

Place_Keyword: California

Access_Constraints: Available at some libraries

Use_Constraints:

Cite Craig Dorman and the U.S. Naval Postgraduate School as the originators of the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Naval Postgraduate School

Contact_Address:

Address_Type: Physical

Address: 1 University Circle

City: Monterey

State_or_Province: CA

Postal_Code: 93943

Contact_Voice_Telephone: 831.656.2441

Browse_Graphic:

Browse_Graphic_File_Name: Dorman_MS_1968

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:

Craig E. Dorman at the United States Naval Postgraduate School for the collection and analysis of data. For inclusion into usSEABED: Digitization (data): Jennifer Mendonca and Carolynn Box (USGS); locations: Nadine Golden (USGS). Formatting corrections: Jane Reid (USGS) and Chris Jenkins (University of Colorado).

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Statistical data was digitized by hand (typed in), visually compared to source and corrected. Where appropriate, data were tested for completeness using MS Excel.

Logical_Consistency_Report:

Data fall within normal ranges for phi-size classes and Inman, 1952 sediment statistics.

Completeness_Report:

For usSEABED digitized data include Appendix D: Summary of cumulative percents and Appendix E: Summary of phi parameters and percentiles. Phi size class values were determined by iteratively subtracting adjacent cumulative percents. Pan sizes in mm were converted to phi values. Data not digitized include 95%, 84%, 50%, 16% and 05% percentiles, and weight percent of phi classes. Poor reproduction quality of the report did not allow for the location determinations of samples 66-148 and 339-397, which are not included in usSEABED.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Per report: Navigation for offshore stations numbered under 400 was by visual compass bearings. Fathograms and coastline photographs from each station were used for verification of position. Notations of these positions are believed to be accurate to within a 25-yard radius. Stations 401 to 420 were located by radar navigation, assisted by fathograms. The positions of these stations are believed accurate to within a 100-yard radius. Digitization report: Data locations were digitized using ArcGis 8.3 in August 2004 by scanning the location map and georeferencing the coastline to California coastline shapefile. Locations are given to 0.0001 decimal degrees.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: No water depths are given in the report.

Lineage:

Process_Step:

Process_Description:

Data collected on Naval Postgraduate School 63 foot research vessel using a Dietz-LaFond heavy duty grab and a locally modified clamshell mud snapper. Sample volumes averaged approximately 100 cc (250 grams) and a minimum of 30 grams was obtained at each station. Eleven sieves at half-phi intervals from 4 phi to 1 phi and one-phi intervals from 1 phi to -2 phi were used, with a minimum shaking time of 10 minutes, on samples dried at 140 degrees F for a minimum of 24 hours. Statistical values calculated using a program provided in the report.

Process_Date: 1968

Source_Produced_Citation_Abbreviation: Dorman_MS_1968

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Naval Postgraduate School

Contact_Address:

Address_Type: Physical

Address: 1 University Circle

City: Monterey

State_or_Province: CA

Postal_Code: 93943

Contact_Voice_Telephone: 831.656.2441

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: 420 total; 171 useable

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0001

Longitude_Resolution: 0.0001

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: Pan size 3.962

Attribute_Definition: Sample value larger than 3.962 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 1.981

Attribute_Definition: Sample value between 3.962 and 1.981 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.991

Attribute_Definition: Sample value between 1.981 and 0.991 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.495

Attribute_Definition: Sample value between 0.991 and 0.495 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.351

Attribute_Definition: Sample value between 0.495 and 0.351 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.246

Attribute_Definition: Sample value between 0.351 and 0.246 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.175

Attribute_Definition: Sample value between 0.246 and 0.175 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.124

Attribute_Definition: Sample value between 0.175 and 0.124 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.088

Attribute_Definition: Sample value between 0.124 and 0.088 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0.061

Attribute_Definition: Sample value between 0.088 and 0.061 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Pan size 0

Attribute_Definition: Sample value between 0.061 and 0 mm grain size

Attribute_Definition_Source: Dorman, 1968

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 100

Attribute_Units_of_Measure: Percent

Attribute_Measurement_Resolution: 0.0001

Attribute:

Attribute_Label: Median

Attribute_Definition: Median of grain size distribution

Attribute_Definition_Source: Inman,1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.727

Range_Domain_Maximum: 3.286

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Mean

Attribute_Definition: Mean of grain size distribution

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.835

Range_Domain_Maximum: 3.533

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Deviation

Attribute_Definition: Standard deviation of grain size distribution (sorting)

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.31

Range_Domain_Maximum: 2.268

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Skewness1

Attribute_Definition: First skewness of grain size distribution

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.483

Range_Domain_Maximum: 0.686

Attribute_Units_of_Measure: Unitless

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Skewness2

Attribute_Definition: Second skewness of grain size distribution

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -1.848

Range_Domain_Maximum: 1.95

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.001

Attribute:

Attribute_Label: Kurtosis

Attribute_Definition: Kurtosis

Attribute_Definition_Source: Inman, 1952

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -0.112

Range_Domain_Maximum: 3.277

Attribute_Units_of_Measure: Phi

Attribute_Measurement_Resolution: 0.001

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Naval Postgraduate School

Contact_Address:

Address_Type: Physical

Address: 1 University Circle

City: Monterey

State_or_Province: CA

Postal_Code: 93943

Contact_Voice_Telephone: 831.656.2441

Resource_Description: C. E. Dorman Masters thesis, 1968

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 at some libraries.

Fees: None

Available_Time_Period:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1968

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.