Identification_Information: Citation: Citation_Information: Originator: Stephen L. Eittreim Originator: Roberto J. Anima Originator: Andrew J. Stevenson Originator: Florence L. Wong Publication_Date: 20000915 Title: Polygon coverage MBGEOLSE for Seafloor rocks and sediments of the continental shelf from Monterey Bay to Point Sur, California Edition: Version 1, September 15, 2000 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Miscellaneous Field Studies Map Issue_Identification: MF-2345 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: This data set, MBGEOLSE, consists of polygons of seafloor geologic units and line traces of the San Gregorio Fault interpreted from acoustic imagery data collected by the USGS and cooperators on the continental shelf from 1995 to 1998. MBGEOLSE is the data layer of the print map USGS MF-2345, which also includes a shaded relief base layer. The pertinent USGS/CMG Activity IDs are > P-1-95-MB > P-2-95-MB > M-1-95-MB > J-2-95-MB > J-6-95-MB > M-2-95-MB > M-1-96-MB > J-6-96-MB > J-7-96-MB > J-1-97-MB > J-3-97-MB > M-4-97-MB > J-3-98-MB > M-1-98-MB > A-4-98-MB Purpose: These data are intended for science researchers, students, policy makers, and the general public. Supplemental_Information: Information for the pertinent USGS/CMG activities are online at Related USGS work in the Monterey Bay National Marine Sanctuary are online at . Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ARC/INFO format, this metadata file may include some ARC/INFO-specific terminology. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20000901 Currentness_Reference: Ground Condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.38432 East_Bounding_Coordinate: -121.79294309 North_Bounding_Coordinate: 37.11288919 South_Bounding_Coordinate: 36.22982869 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Coastal Geology Theme_Keyword: Marine Geology Theme_Keyword: sidescan sonar Theme_Keyword: seafloor petrology Theme_Keyword: seafloor sediment Theme_Keyword: acoustic imagery Place: Place_Keyword_Thesaurus: None Place_Keyword: Northern California Place_Keyword: CA Place_Keyword: North Pacific Ocean Place_Keyword: Northern Pacific Ocean Place_Keyword: USA Access_Constraints: Physical source materials are under controlled, on-site access. If available, access to physical samples is described in the "WR CMG Sample Distribution Policy" at . Use_Constraints: Please recognize the U.S. Geological Survey (USGS) as the source of this information. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. This information is not intended for navigational purposes. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS), Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Data_Set_Credit: Bathymetric data from National Oceanic and Atmospheric Administration (NOAA) / National Ocean Service (NOS) multibeam swath soundings for depths greater than 100 m and from the NOS Hydrographic Data Base (NOAA, 1998) for shallower depths were gridded at 2-second intervals with GMT's (Wessel and Smith, 1998) surface algorithm and smoothed with Arcinfo (ESRI, 1998) filter methods. Contour lines were generated from the resulting 50-m grid. The grid of bathymetric data was merged with USGS 30-m DEMs to calculate the shaded relief image, which has a 2X vertical exaggeration. NOAA, 1998, NOS Hydrographic Survey Data, US Coastal Waters: Boulder, CO, World Data Center for Marine Geology & Geophysics, Data Announcement 98-MGG-03, CD-ROM Set, Version 4.0 . Wessel, P., and Smith, W. H. F., 1998, New, improved version of Generic Mapping Tools released: EOS Transactions of the American Geophysical Union, v. 79 (47), p. 579 . Native_Data_Set_Environment: SunOS, 5.7, sun4u UNIX ARC/INFO version 8.0.2 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Identified as best available version. Logical_Consistency_Report: Polygon and chain-node topology present. Every polygon has a label and all polygons are closed. Every line has a label. Completeness_Report: Regional data coverage is limited by location of the survey lines. On the northern shelf from the sheltered area around Santa Cruz northwest to Point Ano Nuevo, the innermost survey lines were run into water depths as shallow as 5 meters. However in most other areas, shallowest lines were at about the 10 meter isobath, leaving a significant data gap to the shoreline. Interior gaps in the interpreted coverage are due to missing sidescan data, whether from non-overlapping tracklines, instrument failure, or corrupted data files. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The side-scan sonar mosaics on the shelf north of Monterey Canyon have a pixel resolution of 0.4 m for the inner shelf and 0.8 m for the outer shelf. Although this pixel resolution allows us to resolve relatively small features on the seafloor, the accuracy of pixel location is considerably poorer than this due to inaccuracies in navigating the fish towed behind the ship for the northern surveys. The southern-shelf data, which were collected with hull-mounted systems, were processed at pixel resolutions of 2.5 m for backscatter and 5 m for bathymetry. The estimated navigational accuracy in pixel location is 50 m for the northern shelf data and 10 m for the southern shelf data. See Eittreim and others (in press) for a fuller discussion of the navigational accuracy and acoustic systems. Interpretation was done at the scale of 2.4 m per pixel. At an image resolution of 72 dpi, common to most video screens, this represents a scale of 1:6,800. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: United States Geological Survey (USGS), Coastal and Marine Geology (CMG), Florence L. Wong Publication_Date: 20000915 Title: Polygon coverage MBGEOLSE for Seafloor rocks and sediments of the continental shelf from Monterey Bay to Point Sur, California Edition: Version 1.0, September 15, 2000 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Miscellaneous Field Studies Issue_Identification: USGS MF-2345 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: Type_of_Source_Media: Sidescan sonar images with pixel resolutions ranging from 0.4 to 2.5 meters Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20000201 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: none Source_Contribution: bottom types interpreted in Adobe Photoshop Process_Step: Process_Description: FLW = Florence L. Wong; SLE = Stephen L. Eittreim SLE interpreted units of sonar block 1 over sidescan image in Adobe Photoshop as a TIFF image. FLW converted Adobe Photoshop TIFF to polygon coverage blk1p. Process_Date: 19980130 Process_Step: Process_Description: SLE interpreted units of sonar block 2 over sidescan image in Adobe Photoshop as a TIFF image. FLW converted Adobe Photoshop TIFF to polygon coverage blk2p. Process_Date: 19980209 Process_Step: Process_Description: SLE re-interpreted units of sonar blocks 1 and 2 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverages blk1p and blk2p. Process_Date: 19980211 Process_Step: Process_Description: SLE interpreted units of sonar block 3 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk3p; combined blocks 1, 2, 3 as scshelf. Process_Date: 19980227 Process_Step: Process_Description: SLE interpreted units of sonar block 4 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk4p and joined to scshelf. Process_Date: 19980311 Process_Step: Process_Description: SLE interpreted units of sonar blocks off Seaside over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage montp. Process_Date: 19980325 Process_Step: Process_Description: SLE interpreted units of sonar blocks 1 and 5 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk15p. Process_Date: 19980701 Process_Step: Process_Description: SLE interpreted units of sonar blocks 2 and 6 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk26gp. Process_Date: 19980716 Process_Step: Process_Description: SLE interpreted units of sonar blocks 7 and 8 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage and merged with scshelf as blk3478p. Process_Date: 19980723 Process_Step: Process_Description: SLE revised units of sonar blocks 1 and 5 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk15p. Process_Date: 19980820 Process_Step: Process_Description: SLE interpreted units of sonar blocks 10 and 11 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk1011gp Process_Date: 19980826 Process_Step: Process_Description: SLE interpreted units of sonar block 9 and gap between blocks 3 and 7 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverages blk9gp and blk37gapp; combined blk15gp and blk9gp as blk159p. Process_Date: 19980910 Process_Step: Process_Description: SLE interpreted units of sonar block 15 over sidescan image in Adobe Photoshop. FLW converted Adobe Photoshop TIFF to polygon coverage blk15ip. Process_Date: 19981214 Process_Step: Process_Description: SLE interpreted units of sonar blocks 12, 13, and surshelf over sidescan backscatter and shaded relief images in Adobe Photoshop. Wilson Lee (WL) converted Adobe Photoshop TIFF to polygon coverages and combined all polygon blocks into coverage ALLBLK. Process_Date: 19990305 Process_Step: Process_Description: FLW exported interim version named MBGEOLSE to Norman Maher, Gary Greene, MBARI Process_Date: 19990423 Process_Step: Process_Description: WL made further revisions as ALLBLKFINAL Process_Date: 19990716 Process_Step: Process_Description: WL made further revisions as MB_POLY Process_Date: 20000111 Process_Step: Process_Description: FLW made further revisions as MBGEOLSE; submitted to peer review. Process_Date: 20000111 Process_Step: Process_Description: FLW made further revisions per reviews. Process_Date: 2000822 Process_Step: Process_Description: First draft of metadata created by Florence Wong using FGDCMETA.AML ver. 1.33 07/15/99 on ARC/INFO data set /we/florence/mont.eitt2/dirsonar/mbgeolse Process_Date: 20000830 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: 2126 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -123 Latitude_of_Projection_Origin: 0.0 False_Easting: 0.000 False_Northing: -500000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 3.224549805355 Ordinate_Resolution: 3.224549805355 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: >>MBGEOLSE.PAT: polygon attribute table >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 AREA 8 18 F 5 > 9 PERIMETER 8 18 F 5 > 17 MBGEOLSE# 4 5 B - > 21 MBGEOLSE-ID 4 5 B - > 25 GRID-CODE 4 8 B - > 29 TAG 2 4 B - >AREA, PERIMETER: of polygons in square meters, meters, respectively >MBGEOLSE#: unique internal control number >MBGEOLSE-ID: user-assigned sequence number >GRID-CODE: value keyed to lookup table MBGEOLSE.PLUT below >TAG: flag to label polygon during plotting >>MBGEOLSE.AAT: arc attribute table >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 FNODE# 4 5 B - > 5 TNODE# 4 5 B - > 9 LPOLY# 4 5 B - > 13 RPOLY# 4 5 B - > 17 LENGTH 8 18 F 5 > 25 MBGEOLSE# 4 5 B - > 29 MBGEOLSE-ID 4 5 B - > 33 LTYPE 15 15 C - >FNODE#, TNODE# starting, ending node of arc, respectively >LPOLY#, RPOLY# polygon to left, right, respectively, of arc >LENGTH length of arc in meters >MBGEOLSE#: unique internal control number >MBGEOLSE-ID: user-assigned sequence number >LTYPE: line type: contact, scratch, fault >>MBGEOLSE.PLUT: polygon symbol lookup table >COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE NAME > 1 GRID-CODE 4 8 B - > 5 DESCRIPTION 35 25 C - > 40 AGE 26 26 C - > 66 PTYPE 5 5 C - > ** REDEFINED ITEMS ** > 66 LABEL 5 5 C - >Record GRID-CODE DESCRIPTION AGE PTYPE > 1 -9 nodata > 2 1 Monterey Formation Miocene Tm > 3 2 mud and fine sand Quaternary Qmud > 4 3 coarse sands Quaternary Qsd > 5 4 granitic rock Late Cretaceous Kgr > 6 5 pipeline > 7 8 relict gravels and sands Quaternary Qgv > 8 9 Santa Cruz Mudstone late Miocene Tsc > 9 10 Purisima Formation Pliocene and Miocene Tp > 10 13 Aromas Sand Quaternary Qa > 11 15 Rocks of Sur platform Tertiary and Cretaceous TKu > 12 28 Vaqueros(?) Formation Miocene and late Oligocene Tv(?) Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS), Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Distribution_Liability: Please recognize the U.S. Geological Survey (USGS) as the source of this information. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Metadata_Reference_Information: Metadata_Date: 20000830 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS), Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998