Mosaicked seafloor photos extracted from videotape, San Pedro shelf, southern California (*.tif)

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Eleyne L. Phillips
Originator: Peter Dartnell
Originator: Florence L. Wong
Publication_Date: 2012
Title:
Mosaicked seafloor photos extracted from videotape, San Pedro shelf, southern California (*.tif)
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Series
Issue_Identification: 552
Publication_Information:
Publication_Place: Menlo Park, CA
Publisher: U.S. Geological Survey
Online_Linkage: <https://pubs.usgs.gov/ds/552/>
Larger_Work_Citation:
Citation_Information:
Originator: Florence L. Wong
Originator: Brian D. Edwards
Originator: Peter Dartnell
Originator: Eleyne L. Phillips
Publication_Date: 2012
Title:
Seafloor Geology and Benthic Habitats of the San Pedro shelf, southern California
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: U.S. Geological Survey Digital Series
Issue_Identification: 552
Publication_Information:
Publication_Place: Menlo Park, California
Publisher: U.S. Geological Survey
Online_Linkage: <https://pubs.usgs.gov/ds/552/>
Description:
Abstract:
This image consists of seafloor photographs extracted from videotape (collected September 2004, O-1-04-SC) and mosaicked into continuous strips.
This data set is one of a collection of digital files of a geographic information system (GIS) of spatially referenced data related to the study of seafloor geology and benthic habitats of the San Pedro shelf off southern California.
The San Pedro shelf study area covers approximately 400 sq km offshore of the metropolitan Los Angeles area out to a water depth of about 150 m (492 ft). The seafloor hosts a rich and varied biologic community and is subject to anthropogenic inputs from shipping traffic, sewage outfall systems, commercial fisheries, and recreational use. Between 1998 and 2004, the U.S. Geological Survey (in cooperation with Los Angeles and Orange County Sanitation Districts) mapped the seafloor with sonar technologies, collected video and still photography, and collected sediment samples to develop a characterization of this shelf area.
Purpose:
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information.
Supplemental_Information:
This collection of mosaic images consists of 
 file size         name
 163 MB 10-2v-32_15-35_15s15.tif
 226 MB 39-11v-20_30-23_30.tif
 155 MB 39-11v-23_30-26_30.tif
 227 MB 39-11v-26_40-29_40.tif
 236 MB 39-11v-29_40-33_00.tif
 171 MB 44-35v-36_46-39_46s10.tif
 173 MB 44-35v-42_51-45_51s10.tif
 327 MB 55-56v-33_30-36_30.tif
 256 MB 55-56v-36_30-39_30.tif
 242 MB 55-56v-39_30-42_30.tif
 051 MB 55-56v-42_30-43_35.tif
 151 MB 55-57v-00_05-03_05.tif
 038 MB 7_10_00-7_11_30.tif
 026 MB 7_11_30-7_13_00.tif
 030 MB 7_13_00-7_14_30.tif
 024 MB 7_14_30-7_16_00.tif
 047 MB 8_09-54_8_11_30.tif
 023 MB 8_09_00-8_09_54.tif
Additional information about the field activities from which this data set was derived are available online at 
 <http://walrus.wr.usgs.gov/infobank/o/o104sc/html/o-1-04-sc.meta.html>
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2004
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -118.338133
East_Bounding_Coordinate: -117.949982
North_Bounding_Coordinate: 33.715607
South_Bounding_Coordinate: 33.562234
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: benthic habitat
Theme_Keyword: coastal shelf
Theme_Keyword: coastal geology
Theme_Keyword: seafloor geology
Theme_Keyword: seafloor character
Theme_Keyword: seafloor habitat
Theme_Keyword: sediment grain size
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Place:
Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: San Pedro, California
Place_Keyword: San Pedro Bay, California
Place_Keyword: Long Beach, California
Place_Keyword: Los Angeles, California
Place_Keyword: Los Angeles Harbor, California
Place_Keyword: Long Beach Middle Harbor, California
Place_Keyword: Seal Beach, California
Place_Keyword: California
Place_Keyword: USA
Place:
Place_Keyword_Thesaurus: GEOnet Names Server
Place_Keyword: north Pacific Ocean
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: San Pedro shelf, southern California
Access_Constraints: None
Use_Constraints: None
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Florence L. Wong
Contact_Address:
Address_Type: mailing address
Address: 345 Middlefield Road Mail Stop 999
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: 650-329-5327
Contact_Electronic_Mail_Address: fwong@usgs.gov
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500
Data_Quality_Information:
Logical_Consistency_Report: Not applicable for raster data.
Completeness_Report: Complete.
Lineage:
Process_Step:
Process_Description:
In October 2004, 365 line-kilometers of seafloor video and over 13,000 photographs were collected over the entire San Pedro Shelf. A 2 m by 1 m camera sled was towed about 2 m off bottom at a speed of about 2 knots. The sled consisted of one forward-looking video camera and one vertical video camera, each with paired lasers for estimating scale, one 6-megapixel camera, and flood lights. Both videos were streamed to the ship in real time for observation on TV monitors and recorded on MiniDV tapes. Navigational information including GMT (Greenwich Mean Time) and geographic coordinates were superimposed on the video and recorded onto the second channel of the MiniDV tapes.
Video segments were captured from the MiniDV tapes using Adobe Premiere software and saved in AVI video format. Geographic coordinates of prominent features on the sea floor were recorded usually and the beginning and end of the video segment.
Using a suite of programs developed by Dr. Yuri Rzhanov, University of New Hampshire (UNH), Center for Coastal and Ocean Mapping through a cooperative USGS - UNH agreement, the video frames were sub-sampled every 2 to 15 frames depending on the camera sled speed over the sea floor. The video frame was cropped depending on lighting and super-imposed text. Frame-to-frame offset measures were calculated using pattern recognition. Finally, each frame was stitched to the previous frame using the offset values that resulting in a bitmap (BMP) image.
The BMP image was converted to a TIFF image and geo-referenced using standard GIS techniques with the recorded geographic coordinates.
The shapefile vidmosfoot.shp (included elsewhere in this compilation) consists of the outlines of the mosaicked images.
Process_Date: 2007
Process_Step:
Process_Description: Metadata imported.
Source_Used_Citation_Abbreviation: d:\temp\xml265.tmp
Process_Date: 20120824
Process_Time: 09440900
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Pixel
Row_Count: 21944
Column_Count: 2538
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.00001
Ordinate_Resolution: 0.00001
Planar_Distance_Units: meters
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 11
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -117.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview: Raster TIFF image in 3 bands (red, green, blue).
Entity_and_Attribute_Detail_Citation: None
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Florence L. Wong
Contact_Address:
Address_Type: mailing address
Address: 345 Middlefield Road Mail Stop 999
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: (650) 329-5327
Contact_Electronic_Mail_Address: fwong@usgs.gov
Resource_Description: Downloadable Data
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.
Standard_Order_Process:
Fees: None.
Digital_Form:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/ds/552/>
Digital_Transfer_Information:
Transfer_Size: 163 MB
Format_Name: TIFF
Metadata_Reference_Information:
Metadata_Date: 20100601
Metadata_Review_Date: 2010
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Florence L Wong
Contact_Address:
Address_Type: mailing address
Address: 345 Middlefield Road Mail Stop 999
City: Menlo Park
State_or_Province: CA
Postal_Code: 94025
Country: USA
Contact_Voice_Telephone: 650-329-5327
Contact_Electronic_Mail_Address: fwong@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.9.15 on Fri Aug 24 11:34:44 2012