z107sc_video_observations

Frequently anticipated questions:

• What does this data set describe?
  1. How might this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
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• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  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?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
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  1. Are there legal restrictions on access or use of the data?
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• Who wrote the metadata?

What does this data set describe?

1. How might this data set be cited?
   Dartnell, Pete, Conrad, Jamie, Golden, Nadine, Phillips, Eleyne, Boyle, Mike, Edwards, Brian, and McCrea, Merit, 2013, z107sc_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:

   • http://pubs.usgs.gov/ds/781/

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -120.296705
   East_Bounding_Coordinate: -119.127344
   North_Bounding_Coordinate: 34.449593
   South_Bounding_Coordinate: 34.065623
   

3. What does it look like?
4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 26-Jun-2007

   Ending_Date: 15-Jul-2007

   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 (668)
   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?

   z107sc_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)

   Value	Definition
   Rock	Exposed bedrock
   Boulder	25.5 cm or greater
   Cobble	Between 25.5 cm and 6.5 cm
   Gravel	Between 6.5 cm and .2 cm
   Sand	Between .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)

   Value	Definition
   Rock	Exposed bedrock
   Boulder	25.5 cm or greater
   Cobble	Between 25.5 cm and 6.5 cm
   Gravel	Between 6.5 cm and .2 cm
   Sand	Between .2 cm and .00625 cm
   Mud	.00625 cm or smaller

   SLOPE

   A visual estimate of slope of the seafloor (Source: USGS)

   Value	Definition
   Low	Flat seafloor
   Medium	Not flat or extreme.
   High	Extreme rock face.

   ABIO_COMP

   Abiotic complexity (rugosity) or roughness of the seafloor. (Source: USGS)

   Value	Definition
   Low	No space available for potential refuge for both juvenile and adult species
   Moderate	Some small holes and space available for potential refuge for both juvenile and adult species
   High	Large holes and spaces available for potential refuge for both juvenile and adult species

   BIO_COMP

   Biologic Complexity (structure). (Source: USGS)

   Value	Definition
   Trace	No plant cover available for potential refuge for both juvenile and adult species
   Low	Small amount of plant cover available for potential refuge for both juvenile and adult species
   Moderate	Some plant cover available for potential refuge for both juvenile and adult species
   High	High volume of plant cover available for potential refuge for both juvenile and adult species

   BIO_COVER

   Biologic cover (Source: USGS)

   Value	Definition
   Barren	Denotes no biological cover.
   Low	Denotes small amount biological cover.
   Moderate	Denotes some biological cover.
   High	Denotes high volume biological cover is present.

   ALG

   algae (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   AMP_TB

   amphipod tubes (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ANM_B

   burrowing anemone (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ANM_M

   metridium (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ANM_O

   other anemone (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ANM_SR

   sand rose anemone (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ART_O

   arthropod (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ATH_FG

   fishing gear (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ATH_O

   anthropogenic detritus (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ATH_T

   trawl mark (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   B_L

   large burrow (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   B_O

   other burrow (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   B_S

   small burrow (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   BD_TR

   body trace in sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   BIV

   bivalve (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   BR_R

   red brittle star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   BR_W

   white brittle star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   BUBB

   bubbles (gas) (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   BYZ

   bryozoans (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CB_B

   box crab (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CB_G

   galatheid crab (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CB_H

   hermit crab (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CB_S

   spider crab (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CIR

   circle scribe (current effects on sediment) (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   COR_A

   articulated coral (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   COR_E

   encrusting coral (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   COR_O

   other coral (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CR_BO

   current-bowed organism (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CR_L

   current lineation in sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CR_O

   other current indicators (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CR_SC

   current scour in sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CR_SM

   current smoothing of sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CRI

   crinoid (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CRUST_O

   other crustacean (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CUC

   sea cucumber (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   CUC_W

   warty sea cucumber (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   D_CVR

   diatom cover (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   DF_WD

   detached algae or kelp (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EC_DB

   deep, burrowing urchin (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EC_P

   purple urchin (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EC_SB

   shallow burrowing urchin (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EC_SD

   sand dollar (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EC_U

   regular urchin (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EC_W

   white urchin (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EGG_M

   mollusc egg case (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   EGG_R

   chondrichthes egg case (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   ELS

   elasmobranch (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   FF

   flat fish (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   FTLS

   featureless seafloor (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_BG

   brown/green gorgonian (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_E

   erect gorgonian (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_O

   other gorgonian (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_P

   prostrate gorgonian (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_PR

   purple gorgonian (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_R

   red gorgonian (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_SW

   sea whip (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   G_SWS

   sea whip stub (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   GSP

   gastropod (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   GSP_H

   sea hare (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   HMK

   biogenically hummocky seafloor (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   HYD

   hydroid (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   INV_O

   other invertebrate (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   KLP

   kelp (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   KLP_CVR

   complete obstruction of seafloor by kelp (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   LOB

   lobster (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   MND

   mound of sediment, generally associated with burrowing (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   OCT

   octopus (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   OCT_D

   octopus doflenii (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   OCT_R

   octopus rubescens (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   P_G

   gentle pit (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   P_O

   other pit (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   P_S

   sharp pit (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   PM

   biogenic plowing of sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   PN_O

   other pennatulid (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   PN_SP

   sea pen (fleshy) (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   POO

   fecal coil (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RF

   other fish (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RF_S

   sebastomus (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_A

   asymmetrical ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_C

   confused ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_D

   degraded ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_M

   megaripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_O

   other ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_OC

   oscillatory ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_S

   subtle ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_SH

   sharp-crested ripples (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RP_SW

   sediment wave (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RX_F

   fractured rock (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RX_I

   rock island (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RX_S

   sedimentary rock (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RX_T

   rock talus (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RX_X

   broken blocky rock (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   RZC

   razor clam (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SB_C

   unknown (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SC_C

   scattered cobbles (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SC_LF

   single-leaved algae (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SC_SH

   scattered shell (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_BR

   brittle star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_BS

   basket star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_BT

   bat star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_L

   luidea (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_M

   mediaster (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_O

   other sea star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_P

   pycnopodia (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_RB

   red brittle star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_S

   sand star (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_WI

   white brittle star in sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SF_WO

   white brittle star on sediment (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SHP

   shrimp (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SP_E

   encrusting sponge (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SP_O

   orange sponge (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SP_S

   solitary sponge (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SP_T

   three-dimensional sponge (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   SQD

   squid (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   STH_G

   unknown (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   TM

   tool mark (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   TR_MND

   tar mound (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   TRF

   turf (algal/diatom coverage of sediment) (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   TT

   tracks/trails in sediment (biogenic) (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   TUN

   tunicate (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   UF

   unknown fish (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   VH

   high visibility (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   VP

   poor visibility (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   WRM_F

   feather worm (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   WRM_T

   tube worm (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote presence of the species or feature.

   YOY

   young of year (Source: USGS)

   Value	Definition
   0	Denote absence of the species or feature.
   1	Denote 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 mapped and slope classes 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)

   Value	Definition
   1	Smooth sediment
   2	Mixed sediment and smooth rock
   3	Rugose 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)
   • Pete Dartnell
   • Jamie Conrad
   • Nadine Golden
   • Eleyne Phillips
   • Mike Boyle
   • Brian Edwards
   • Merit McCrea
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. Mike Boyle, Larry Kooker, Tom Reiss, Davide Finlayson, Diane Minasian, and Peter Triezenberg at the USGS Marine Facility (Redwood City, CA) contributed field support and logistical support.

3. To whom should users address questions about the data?
   Pete Dartnell

   U.S. Geological Survey, Coastal and Marine Geology

   Physical Scientist

   345 Middlefield Rd MS-999

   Menlo Park, CA
   

   USA

   (650) 329-5460 (voice)

   (650) 329-5190 (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: 2008 (process 1 of 5)

   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 5)

   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 5)

   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 5)

   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

   Date: 19-Oct-2020 (process 5 of 5)

   Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: VeeAnn A. Cross

   Marine Geologist

   384 Woods Hole Road

   Woods Hole, MA
   

   508-548-8700 x2251 (voice)

   508-457-2310 (FAX)

   vatnipp@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?
   Visual observations 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?
   Observations made without uniform protocol.
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?
   • Availability in digital form:

     Data format:
     Network links:	https://pubs.usgs.gov/ds/781/

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 19-Oct-2020

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)