Metadata: Identification_Information: Citation: Citation_Information: Originator: Dave Twichell Publication_Date: 1999 Title: Phi class interpretation coverage from Sarasota Florida study area Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 99-396 Publication_Information: Publication_Place: Woods Hole Field Center Publisher: U.S. Geological Survey, Coastal and Marine Geology Team Online_Linkage: https://doi.org/10.3133/ofr99396 Online_Linkage: https://pubs.usgs.gov/of/1999/of99-396/htmldocs/data.htm Larger_Work_Citation: Citation_Information: Originator: David C. Twichell Originator: Valerie F. Paskevich Publication_Date: 1999 Title: Bathymetry, sidescan sonar image, surface sediments, and surfical geological map of the inner shelf off Sarasota, Florida: Preliminary discussion and GIS database release Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data; vector data Series_Information: Series_Name: Open-File Report Issue_Identification: 99-396 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Twichell, D.C., and Paskevich, V.F., 1999, Bathymetry, sidescan sonar image, surface sediments, and surfical geological map of the inner shelf off Sarasota, Florida— Preliminary discussion and GIS database release: U.S. Geological Survey Open-File Report 99-396, https://doi.org/10.3133/ofr99396 Online_Linkage: https://doi.org/10.3133/ofr99396 Online_Linkage: https://pubs.usgs.gov/of/1999/of99-396/ Description: Abstract: The U.S. Geological Survey, in cooperation with the University of South Florida and Eckerd College, completed a bathymetric, sidescan sonar, high-resolution seismic-reflection, and surface sediment sampling survey of the inner shelf environment along the western Florida coast. The survey area extends 15km from Sarasota Point to Buttonwood Harbor. This study is part of a larger program initiated by the U.S. Geological Survey to map the geologic framework and monitor the modern processes that affect the western Florida coastal zone. This portion of the project included a reconnaissance high-resolution seismic and side-scan sonar surveys of the entire study area, detailed mapping to identify patterns of hard grounds and sediment cover, and coring of sediments to document historical development of the inner shelf and coastal system. Purpose: This GIS overlay is a component of the Sarasota, Florida ArcView GIS database and contains the researcher's interpretation of the area utilizing phi class breaks from the grain size analysis of collected samples from the study area. Supplemental_Information: These data were collected on U.S. Geological Survey field activity 1995-004-FA (BLWS 95-04) https://cmgds.marine.usgs.gov/services/activity.php?fan=1995-004-FA . Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19940502 Ending_Date: 19940508 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -82.7329 East_Bounding_Coordinate: -82.5676 North_Bounding_Coordinate: 27.3856 South_Bounding_Coordinate: 27.2164 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:20f58ca6-0ff0-4744-aef5-c701199d8c49 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: Woods Hole Field Center Theme_Keyword: R/V BELLOWS Theme_Keyword: BLWS 95-04 Theme_Keyword: May 2-8, 1995 Theme_Keyword: vector Theme_Keyword: polygon Theme_Keyword: ArcView Theme_Keyword: shapefile Theme_Keyword: sidescan sonar mosaic interpretation Theme_Keyword: interpretive overlay Theme_Keyword: coverage Theme_Keyword: ARC coverage Theme_Keyword: interpretive coverage Theme_Keyword: phi class Theme_Keyword: grain size analysis Theme_Keyword: surface samples Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sea-floor characteristics Theme_Keyword: marine geology Theme_Keyword: scientific interpretation Theme_Keyword: geospatial datasets Theme_Keyword: unconsolidated deposits Theme_Keyword: grain-size analysis Theme_Keyword: field sampling Place: Place_Keyword_Thesaurus: None Place_Keyword: Gulf of Mexico Place_Keyword: Florida Place_Keyword: West Florida shelf Place_Keyword: Sarasota Place_Keyword: Big Sarasota Pass Place_Keyword: Longboat Key Place_Keyword: Buttonwood Harbor Place_Keyword: New Pass Place_Keyword: Lido Key Access_Constraints: None Use_Constraints: The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U. S. Geological Survey Contact_Person: Dave Twichell Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02532 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://pubs.usgs.gov/of/1999/of99-396/htmldocs/images/covrgs/phi.gif Browse_Graphic_File_Description: GIF Browse_Graphic_File_Type: phi class coverage overlaid on sidescan sonar mosaic Native_Data_Set_Environment: ESRI Shapefile format Data_Quality_Information: Logical_Consistency_Report: No information available from the original metadata. Completeness_Report: No information available from the original metadata. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: No information was available in the original metadata. Lineage: Process_Step: Process_Description: The interpretation was drawn over the sidescan sonar mosaic utilizing the PCI remote sensing software Imageworks. The completed mosaic was georeferenced to the UTM zone 17. Using information from the grain size analysis of collected samples, the interpretation was interactively drawn over the image as a bitmap graphic and saved in the PCI image database file. The saved graphic was exported from PCI as an ArcView shapefile and imported to the Sarasota ArcView GIS database. Process_Date: Unknown Source_Produced_Citation_Abbreviation: phi class interpretation of Sarasota, FL sidescan sonar mosaic using grain size analysis information from samples Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dave Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Process_Step: Process_Description: This metadata file was edited for inclusion in the CMHRP metadata inventory. These edits included but are not limited to converting the metadata from HTML to XML format; fixing the publication date; added additional information in the identification section such as adding the series information, larger work ctation as well as the online links. Added the field activity number and link to the supplemental information; added the ISO 19115 Topic Category and USGS Thesaurus and appropriate terms; added the full URL to the browse graphic; specified that the information was not available freom the original metadata in some of the fields; updated the distribution liability with an FSP approved statement; added the online digital transfer option and links; updated the metadata date; provided a generic email and contact instructions in the metadata contact section; fixed all errors. The original metadata specified the North American Datum of 1983 for the horizontal datum, with the ellipsoid being WGS84. This is not possible. So the ellipsoid was modified to the GRS80 ellipsoid and associated values which is in alignment with a NAD83 datum. A persistent identifier (PID) was added to the metadata in the thesaurus section. (20250812) Process_Date: 20250812 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2251 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 30 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: .00002 Longitude_Resolution: .00002 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: GRS80 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: phi.dbf Entity_Type_Definition: Shapefile Attribute Table Entity_Type_Definition_Source: None Attribute: Attribute_Label: Area Attribute_Definition: AREA of polygon. The Area attribute is carried over from the AREA attribute in ARC/INFO. Area is an ARC/INFO internal control parameter and has no relevance to the use of the data. Attribute_Definition_Source: Software computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.00 Range_Domain_Maximum: 0.005 Attribute: Attribute_Label: Perimeter Attribute_Definition: PERIMTER of polygon. The Perimter attribute is carried over from the PERIMTER attribute in ARC/INFO. Perimeter is an ARC/INFO internal control parameter and has no relevance to the use of the data. Attribute_Definition_Source: Software computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.014 Range_Domain_Maximum: 2.472 Attribute: Attribute_Label: Phi_ Attribute_Definition: Phi_ is carried over from the ARC/INFO attribute PHI#. PHI# is an ARC/INFO internal control parameter and has no applicable relevance to the use of the data. Attribute_Definition_Source: User Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 31 Attribute: Attribute_Label: Phi_id Attribute_Definition: Phi_id is carried over from the ARC/INFO attribute PHI_ID. PHI_ID is an ARC/INFO internal control parameter and has no applicable relevance to the use of the data. Attribute_Definition_Source: User Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 30 Attribute: Attribute_Label: Code Attribute_Definition: A numeric code assigned to the polygon that may be used for color assignments. The codes relate to a general phi class break assigned to the polygons by the researcher drawing the interpretation. Boundaries were drawn based on the value contained in the analyzed surface sample and their distribution over the study area. The codes and the description are listed below. 1 - < 1.0 phi - very coarse sand and gravel 2 - 1-2 phi - medium sand 3 - 2-3 phi - fine sand 4 - >3.0 phi - very fine sand Attribute_Definition_Source: User Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 4 Attribute: Attribute_Label: Class Attribute_Definition: Class is a text field that is assigned as a description of the phi range of the code assigned to the polygon that may be used as a legend text label. The Class field relates to the code assigned to the polygons by the researcher drawing the interpretation. Boundaries were drawn based on the value contained in the analyzed surface sample and their distribution over the study area. The codes and the description are listed below. 1 - < 1.0 phi - very coarse sand and gravel 2 - 1-2 phi - medium sand 3 - 2-3 phi - fine sand 4 - >3.0 phi - very fine sand Attribute_Definition_Source: User Defined Attribute_Domain_Values: Unrepresentable_Domain: Character field Attribute: Attribute_Label: Descriptio Attribute_Definition: Descriptio is a text field that is assigned as a description of the phi range of the code assigned to the polygon that may be used as a legend text label. The Descriptio field relates to the code assigned to the polygons by the researcher drawing the interpretation. Boundaries were drawn based on the value contained in the analyzed surface sample and their distribution over the study area. The codes and the description are listed below. 1 - very coarse sand and gravel 2 - medium sand 3 - fine sand 4 - very fine sand Attribute_Definition_Source: User Defined Attribute_Domain_Values: Unrepresentable_Domain: Character field Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U. S. Geological Survey Contact_Person: Dave Twichell Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@usgs.gov Resource_Description: phi class interpretation coverage for Sarasota, FL study area 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 for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: shapefile File_Decompression_Technique: No compression applied for individual components, zip compression for combining the files into a single download file. Transfer_Size: 1 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/of/1999/of99-396/data/geolmap/phi.zip Network_Resource_Name: https://pubs.usgs.gov/of/1999/of99-396/htmldocs/data.htm Network_Resource_Name: https://doi.org/10.3133/ofr99396 Access_Instructions: The first link is to download the ZIP file containing all the shapefile components, the second link is to the data catalog page where individual files can be selected, and the third link is to the DOI of the report. Offline_Option: Offline_Media: CD-ROM Recording_Capacity: Recording_Density: 650 Recording_Density_Units: Mbytes Recording_Format: ISO 9600 Compatibility_Information: The user must have a CD-ROM capable of reading an ISO 9660 standard CD-ROM. Fees: None Technical_Prerequisites: Phi class breaks interpretive coverage of analyzed surface sediments for the study area is available in ArcView shapefile format. The user must have ArcView to read and process the data file or another GIS application package capable of importing the data. Metadata_Reference_Information: Metadata_Date: 20250812 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U. S. Geological Survey Contact_Person: Valerie Paskevich Contact_Position: Computer Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2281 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the metadata contact is no longer with the U.S. Geological Survey. Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: Local time Metadata_Access_Constraints: None Metadata_Use_Constraints: None