s1c08sc_video_observations

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What does this data set describe?

Title: s1c08sc_video_observations
Abstract:
This part of DS 781 presents video observations from cruise S1C08SC for the Santa Barbara Channel region and beyond in southern California. The vector data file is included in "s1c08sc_video_observations.zip," which is accessible from http://pubs.usgs.gov/ds/781/video_observations/data_catalog_video_observations.html. Some of the video observations from cruise S1C08SC are published in Scientific Investigations Map 3225, "California State Waters Map Series--Hueneme Canyon and Vicinity, California" (see sheet 6). In addition, some of the video observations will be published in eight future California State Waters Map Series SIMs of the region (namely, the Mugu Canyon and Vicinity, Offshore of Ventura, Offshore of Carpinteria, Offshore of Santa Barbara, Offshore of Coal Oil Point, Offshore of Refugio Beach, Offshore of Gaviota, and Offshore of Point Conception map areas) [note that, at the time of this writing, two of the other eight SIMs have been published: the Offshore of Ventura map area (SIM 3254), and the Offshore of Carpinteria map area (SIM 3261)]. Between 2006 and 2007, the seafloor in the Mugu Canyon and Vicinity, Hueneme Canyon and Vicinity, Offshore of Ventura, Offshore of Carpinteria, Offshore of Santa Barbara, Offshore of Coal Oil Point, Offshore of Refugio Beach, Offshore of Gaviota, and Offshore of Point Conception map areas in southern California was mapped by California State University, Monterey Bay, Seafloor Mapping Lab (CSUMB) and by the U.S. Geological Survey (USGS), using both multibeam echosounders and bathymetric sidescan sonar units (for example, see sheets 1, 2, and 3, SIM 3225, for details). These mapping missions combined to collect bathymetry and acoustic-backscatter data from about the 10-m isobath to out beyond the 3-nautical-mile limit of California's State Waters. To validate the interpretations of sonar data in order to turn it into geologically and biologically useful information, the USGS ground-truth surveyed the data by towing camera sleds over specific locations throughout the region. During the 2008 ground-truth cruise, the camera sled housed two video cameras (one forward looking and the other vertical looking), a high-definition video camera, and an 8-megapixel digital still camera. The video was fed in real time to the research vessel, where USGS and NOAA scientists recorded both the geologic and biologic character of the seafloor into programmable keypads once every minute. In addition to recording the seafloor characteristics, a digital still photograph was captured once every 30 seconds. This ArcGIS shape file includes the position of the camera, the time each observation was started, and the visual observations of geologic and biologic habitat.
Supplemental_Information:
Information about the data collection field activity S-1C-08-SC is at <http://walrus.wr.usgs.gov/infobank/s/s1c08sc/html/s-1c-08-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.
  1. How might this data set be cited?
    Golden, Nadine, and Phillips, Eleyne, 2013, s1c08sc_video_observations:.

    This is part of the following larger work.

    Golden, Nadine E., 2013, California State Waters Map Series Data Catalog: Data Series DS 781, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -119.255818
    East_Bounding_Coordinate: -119.246218
    North_Bounding_Coordinate: 34.103513
    South_Bounding_Coordinate: 34.101858
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 28-Sep-2008
    Ending_Date: 08-Oct-2008
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (1,721)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    s1c08sc_video_observations
    The shapefile includes vector point data of observed geologic and biologic features when each observation was taken. The shapefile can be added to any ESRI ArcMap project. (Source: USGS)
    FID
    Internal feature number. (Source: ESRI) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: ESRI) Coordinates defining the ArcGIS features
    DATE
    mmddyyy. Month, day, year format (Source: USGS) Date of observation
    TIME
    Greenwich Mean Time (GMT) also commonly referred to as Coordinated Universal Time (UTC). (Source: USGS) Time of observation
    LATITUDE
    Latitude (Source: USGS)
    Range of values
    Minimum:34.103513
    Maximum:34.101858
    Units:Decimal degrees; Southern Hemisphere values are negative.
    LONGITUDE
    Longitude (Source: USGS)
    Range of values
    Minimum:-119.255818
    Maximum:-119.246218
    Units:Decimal degrees; Western Hemisphere values are negative.
    HEADING
    Bearing (Source: USGS) The angle measured in degrees in a clockwise direction from the north line.
    COURSE
    Not currently used (Source: USGS) Not currently used
    SPEED
    Not currently used (Source: USGS) Not currently used
    LOGENTRY
    Comments and notes manually recorded during an observation. (Source: USGS) Annotation
    MAJOR_GEO
    Primary substrate constitutes greater than fifty percent of the seafloor during an observation. The values are based on the Wentworth scale except that granule and pebble sizes have been grouped together into a class called "gravel," and clay and silt sizes have been grouped together into a class called "mud." (Source: USGS)
    ValueDefinition
    RockExposed bedrock
    Boulder25.5 cm or greater
    CobbleBetween 25.5 cm and 6.5 cm
    GravelBetween 6.5 cm and .2 cm
    SandBetween .2 cm and .00625 cm
    Mud.00625 cm or smaller
    MINOR_GEO
    Secondary substrates constitute greater than twenty percent of the seafloor during an observation. The classes are based on the Wentworth scale except that granule and pebble sizes have been grouped together into a class called "gravel," and clay and silt sizes have been grouped together into a class called "mud." (Source: USGS)
    ValueDefinition
    RockExposed bedrock
    Boulder25.5 cm or greater
    CobbleBetween 25.5 cm and 6.5 cm
    GravelBetween 6.5 cm and .2 cm
    SandBetween .2 cm and .00625 cm
    Mud.00625 cm or smaller
    SLOPE
    A visual estimate of slope of the seafloor (Source: USGS)
    ValueDefinition
    LowFlat seafloor
    MediumNot flat or extreme.
    HighExtreme rock face.
    ABIO_COMP
    Abiotic complexity (rugosity) or roughness of the seafloor. (Source: USGS)
    ValueDefinition
    LowNo space available for potential refuge for both juvenile and adult species
    MediumSome small holes and space available for potential refuge for both juvenile and adult species
    HighLarge holes and spaces available for potential refuge for both juvenile and adult species
    BIO_COMP
    Biologic Complexity (structure). (Source: USGS)
    ValueDefinition
    LowNo plant cover available for potential refuge for both juvenile and adult species
    MediumSome plant cover available for potential refuge for both juvenile and adult species
    HighHigh volume of plant cover available for potential refuge for both juvenile and adult species
    BIO_COVER
    Biologic cover (Source: USGS)
    ValueDefinition
    noDenote no biological cover.
    yesDenote that biological cover is present.
    Q
    Undefined key. Used for observed, unplanned species or geologic features. (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    R
    Undefined key (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ALGAE
    Algae observed on the seafloor (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANEMON_AGG
    Aggregating anemone (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANEMON_SOL
    Solitary anemone (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANEMON_TUB
    Tube anemone (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANTHRO
    Anthropogenic material (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANTHRO_FG
    fishing gear (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANTHRO_GG
    trawling gouge (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ANTHRO_PIP
    pipe (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BIO_HUMM
    biogenically hummocky terrain (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BIO_PLOW
    plow marks (biogenic) (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BIVALVE
    bivalve (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BLDR_ISO
    isolated boulder (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BOCCACIO
    Boccacci (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BODY_TRACE
    Body Trace (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BRACHIOPOD
    Brachiopods are marine animals that have hard "valves" (shells) on the upper and lower surfaces. (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BRYOZOAN
    Bryzoan (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BURROW_LG
    large burrow (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    BURROW_SM
    small burrow (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CANTSEE
    No or little visibility of the seafloor and it's characteristics. (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CHROMIS
    fish (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CIRCLE_SCB
    circle scribe (biogenic current induced) (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    COBBLE_ISO
    isolated cobble (outsized clast) (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    COQUINA
    broken shells (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CORAL_AGG
    aggregating coral (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CORAL_ART
    articulated coral (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CORAL_ENC
    encrusting coral (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    COWCOD
    fish (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CRAB
    Crab (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CRAB_CNCER
    cancer crab (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CRAB_GALA
    galatheid crab (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CRAB_HERMT
    hermit crab (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CRINOID
    Crinoid (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CRUSTACEAN
    Crustacean (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CUP_CORAL
    Cup-shaped coral formed by a single polyp. (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CURRENT
    Unknown (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CURRENT_BO
    current-bowed organism (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CURRENT_LN
    current lineation in sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CURRENT_SC
    current scour in sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    CURRENT_SM
    current-smoother sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    DEPRESSION
    depression in sediment - occasionally feeding pits (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    DRIFT_WEED
    detached algae or kelp (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    EGGCAS_CHN
    chondrichthes egg case (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    EGGCAS_MOL
    mollusc egg case (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FAT_SEAPEN
    fat sea pen (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FECAL_COIL
    fecal coil (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FISH
    Assignable fish key (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FISH_A
    placeholder fish species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FISH_B
    placeholder fish species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FISH_C
    placeholder fish species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FISH_D
    placeholder fish species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    FLATFISH
    Flatfish (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    GAS
    gas bubbles (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    GASTROPOD
    Gastropoda or gastropods (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    GOBY
    Goby (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    GORG_RED
    red gorgonian (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    GORGONIAN
    gorgonian (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    HYDROCORAL
    hydrocoral (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    HYDROID
    hydroid (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    INVERT
    invertebrate (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    INVERT_A
    placeholder invertebrate species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    INVERT_B
    placeholder invertebrate species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    INVERT_C
    placeholder invertebrate species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    INVERT_D
    placeholder invertebrate species for on-the-fly identification (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    KELP
    kelp (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    LEATHER
    leather star (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    LINGCOD
    lingcod (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    LOBSTER
    lobster (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    MEDIASTER
    mediaster (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    METRIDIUM
    metridium (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    MOUND
    sediment mound - generally related to burrowing activity (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    MUD_DRAPE
    sediment drape over bedrock (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    MYSIDS
    shrimp in water column (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    OCTOPUS
    octopus (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    PISASTER
    piaster (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    PIT_SHARP
    sharp feeding pit (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RATFISH
    ratfish (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RAY
    ray (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    REDBRIT_IN
    red brittle stars in sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    REDBRIT_ON
    red brittle stars on sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE
    Rippled-like bedform in sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE_AS
    asymmetrical ripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE_CF
    confused ripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE_DG
    degraded ripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE_OC
    oscillatory ripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE_SB
    subtle ripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RIPPLE_SH
    sharp-crested ripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ROCK_BROKE
    broken blocky rock (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ROCK_FRACT
    fractured rock (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ROCK_ISO
    rock island (in sediment) (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ROCK_SED
    sedimentary rock (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ROCK_TALUS
    rock talus (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    ROCKFISH
    rockfish (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RP_MG_DG
    degraded megaripples (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RP_MG_SB
    subtle megaripple (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    RP_MG_SH
    sharp-crested megaripple (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SAND_DOLLR
    sand dollar (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SCULPIN
    sculpin (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SEA_CUC
    sea cucumber (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SEA_HARE
    sea hare (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SEA_PEN
    pennatulid (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SEA_SLUG
    sea slug (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SEA_UND
    undetermined invert (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SEA_WHIP
    sea whip (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SED_DRAPE
    sediment draped over bedrock - bedrock presence inferred (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SHARK
    shark (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SHELL_SCAT
    scattered shells (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SHRIMP
    shrimp (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SKATE
    skate (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SPONGE_3D
    sponge three dimensional (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SPONGE_ENC
    encrusting sponge (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    SQUID
    squid (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    STAR_BASKT
    basket star (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    STAR_BAT
    bat star (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    STAR_SAND
    sand star (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    STAR_SEA
    sea star (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    STAR_SUN
    sun star (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    STOMUS
    stomus (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    TARMOUND
    tar mound (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    TRACKTRAIL
    tracks and trails in sediment (biogenic) (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    TUBE_WORM
    tube worm (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    TUNICATE
    tunicate (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    URCHIN
    urchin (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    VIS_HI
    visibility >5 m (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    VIS_LOW
    visibility <1 m (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    VIS_MOD
    visibility <5 m (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    VIS_POOR
    visibility >1/2 m (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    WHTBRIT_IN
    white brittle stars in sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    WHTBRIT_ON
    white brittle stars on sediment (Source: USGS)
    ValueDefinition
    0Denote absence of the species or feature.
    1Denote presence of the species or feature.
    Depth
    Depth Value (Source: USGS)
    Range of values
    Minimum:0.00
    Maximum:-300.00
    Units:Decimal meters below mean sea level.
    CLASS
    This seafloor-character class was produced using video-supervised maximum-likelihood classification of the bathymetry and backscatter (intensity of return) signals from sonar systems. Derivative roughness (rugosity) and backscatter intensity were used as variants in the classification. The substrate classes have been divided into the California Marine Life Protection Act depth zones and slope classes mapped in this area: Depth Zone 2 (intertidal to 30 meters), Depth Zone 3 (30 to 100 meters), Depth Zone 4 (greater than 100 meters), Slope Class 1 (0 to 5 degrees), Slope Class 2 (5 to 30 degrees), Slope Class 3 (30 to 60 degrees), and Slope Class 4 (60 to 90 degrees). Depth Zone 1 (intertidal) is not present in this map area (not included in this dataset). (Source: USGS)
    ValueDefinition
    1Smooth sediment
    2Mixed sediment and smooth rock
    3Rugose boulder and rock
    LINE
    Video observation camera line. (Source: USGS) Name or number of camera line
    TAPE
    MiniDV tape numbered consecutively throughout cruise. (Source: USGS) Name or number of tape

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Nadine Golden
    • Eleyne Phillips
  2. Who also contributed to the data set?
    The authors would like to thank Hank Chezar of the USGS Western Region Coastal and Marine Geology Program (in Santa Cruz and Menlo Park, CA) for field support and equipment support. Tim Elfers, Peter Harkin, Gerry Hatcher, and Pete Dal Ferro at the USGS Marine Facility (Santa Cruz, CA) contributed logistical support.
  3. To whom should users address questions about the data?
    Pete Dartnell
    U.S. Geological Survey, Coastal and Marine Geology
    Physical Scientist
    400 Natural Bridges Dr.
    Santa Cruz, CA
    USA

    (831) 460-7415 (voice)
    (831) 427-4748 (FAX)
    pdartnell@usgs.gov

Why was the data set created?

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.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 2011 (process 1 of 4)
    The camera-sled tracklines were sited through video fed up to the research vessel in real time, where USGS and NOAA scientists recorded both the geologic and biologic character of the seafloor. While the camera was deployed, observations were recorded for a 10-second period once every minute. Onshore, the observation comma-delimited text file was converted to an ArcGIS shapefile.
    Date: 05-Oct-2017 (process 2 of 4)
    Modified Distribution_Information section in metadata to facilitate data download. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Alan O. Allwardt
    Contractor -- Information Specialist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7551 (voice)
    831-427-4748 (FAX)
    aallwardt@usgs.gov
    Date: 05-Oct-2017 (process 3 of 4)
    Keywords section of metadata optimized for discovery in USGS Coastal and Marine Geology Data Catalog. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Alan O. Allwardt
    Contractor -- Information Specialist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7551 (voice)
    831-427-4748 (FAX)
    aallwardt@usgs.gov
    Date: 26-Apr-2018 (process 4 of 4)
    Added keywords from Coastal and Marine Ecological Classification Standard (CMECS) to metadata. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Alan O. Allwardt
    Contractor -- Information Specialist
    2885 Mission Street
    Santa Cruz, CA

    831-460-7551 (voice)
    831-427-4748 (FAX)
    aallwardt@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    Waterproof camera is submerged and connected to GPS receiver at the surface with Red Hen Systems VMS 300 hardware. Georeferenced video and still photos are collected. Visual observations are of variable unknown accuracy.
  2. How accurate are the geographic locations?
    Highly variable, on the order of 10 meters.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Observation are from one minute intervals. Some gaps in observations are due to technical problems or sediment dispersion covering the camera lens.
  5. How consistent are the relationships among the observations, including topology?
    Point features present.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government is freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. 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.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey
    345 Middlefield Rd
    Menlo Park, CA
    USA

    (650) 329-4309 (voice)
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    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 on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 26-Apr-2018
Metadata author:
U.S. Geological Survey, Coastal and Marine Geology
Attn: Nadine Golden
Geographer
USGS, 400 Natural Bridges Dr
Santa Cruz, CA

(831) 460-7530 (voice)
(831) 427-4748 (FAX)
ngolden@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/cal_state_waters/s1c08sc_video_observations_metadata.faq.html>
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