Geologic and benthic characteristics of the seafloor from video images, San Pedro shelf, southern California - VIDEODES.SHP

Frequently anticipated questions:

• What does this data set describe?
  1. How should 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?
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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?
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  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
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• Who wrote the metadata?

What does this data set describe?

1. How should this data set be cited?

   Phillips, Eleyne L. , and Wong, Florence L. , 2012, Geologic and benthic characteristics of the seafloor from video images, San Pedro shelf, southern California - VIDEODES.SHP:.

   Online Links:

   • <https://pubs.usgs.gov/ds/552/>

   This is part of the following larger work.

   Wong, Florence L. , Edwards, Brian D. , Dartnell, Peter, and Phillips, Eleyne L. , 2012, Seafloor Geology and Benthic Habitats of the San Pedro shelf, southern California: U.S. Geological Survey Digital Series 552, U.S. Geological Survey, Menlo Park, California.

   Online Links:

   • <https://pubs.usgs.gov/ds/552/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -118.31874443

   East_Bounding_Coordinate: -117.94869326

   North_Bounding_Coordinate: 33.71465996

   South_Bounding_Coordinate: 33.54936628

3. What does it look like?

   <https://pubs.usgs.gov/ds/552/shape/videodes.gif> (GIF)

   preview image of data set

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 2004

   Currentness_Reference: ground condition

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: map

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Point data set. It contains the following vector data types (SDTS terminology):

      • Point (5216)

   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 WGS84.
      The ellipsoid used is WGS84.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
      

7. How does the data set describe geographic features?

   videodes.pat

   Attributes of seafloor observations. (Source: This study.)

   FID

   Internal feature number. (Source: ESRI, <http://www.esri.com/>)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI, <http://www.esri.com/>)

   Coordinates defining the features.

   JD

   day number counting from January 1 (Source: Common usage.)

   Range of values
   Minimum:	1
   Maximum:	366

   UTC

   Coordinated Universal Time (Greenwich Mean Time) (Source: Common usage.)

   time formatted as HH:MM:SS AM/PM

   LAT

   latitude (Source: Common usage.)

   Range of values
   Minimum:	-90
   Maximum:	90

   LON

   longitude (Source: Common usage.)

   Range of values
   Minimum:	-180
   Maximum:	180

   DEP

   depth (meters) (Source: Common usage.)

   Range of values
   Minimum:	-10000
   Maximum:	0

   ALT

   altitude (Source: Common usage.)

   Range of values
   Minimum:	0
   Maximum:	9000

   HED

   heading (degrees) (Source: Common usage.)

   Range of values
   Minimum:	0
   Maximum:	360

   TMG

   trackline or course made good (degrees) (Source: Common usage.)

   Range of values
   Minimum:	0
   Maximum:	360

   SOG

   speed over ground (knots) (Source: Common usage.)

   speed in knots

   MAJ

   major sediment type (Source: This study.)

   Value	Definition
   boulder	boulder (maj, min)
   check	CHECK- location to review video (maj, min)
   cobble	cobble (maj, min)
   gravel	gravel (maj, min)
   int	INTERFACE- change in seafloor type (maj, min)
   kelp_cvr	kelp forest coverage (maj, min)
   mud	mud (maj, min)
   rock	rock (maj, min)
   sand	sand (maj, min)
   und	UNDEFINED- seafloor could not be seen/determined (maj, min)

   MIN

   minor sediment type (Source: This study.)

   Formal codeset
   Codeset Name:	Sediment type
   Codeset Source:	Attribute MAJ in this metadata record.

   SLOPE

   qualitative description of slope (Source: This study.)

   Value	Definition
   cliff	extreme relief (slope)
   flat	low relief (slope)
   slope	slope relief (slope)

   ABIO_CMP

   abiotic complexity (Source: This study.)

   Value	Definition
   a_hi	high abiotic complexity
   a_low	low abiotic complexity
   a_mod	moderate abiotic complexity
   a_trace	abiotic complexity trace

   BIO_CMP

   biotic complexity (Source: This study.)

   Value	Definition
   b_hi	high biotic complexity
   b_low	low biotic complexity
   b_mod	moderate biotic complexity
   b_trace	trace biotic complexity

   BIO_CVR

   biotic coverage (Source: This study.)

   Value	Definition
   cvr_b	barren benthic coverage
   cvr_h	high benthic coverage
   cvr_l	low benthic coverage
   cvr_m	moderate benthic coverage

   B1

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Value	Definition
   alg	algae (other)
   anm	anenome (other)
   anm_b	burrowing anemone (other)
   anm_s	sand rose anemone (other)
   ath_fg	anthropogenic fish gear (anthropogenic)
   ath_gh	anthropogenic hole/gouge (anthropogenic)
   ath_o	anthropogenic other (anthropogenic)
   ath_tw	anthropogenic trawl mark (anthropogenic)
   bdt	body trace (other)
   biv	bivalve (other)
   bpl	biotic plowing (other)
   brc	brachiopod (other)
   btw	tool mark (other)
   cb_h	crab holothurian (other)
   cb_o	other crab (other)
   cb_s	spider crab (other)
   chck	CHECK! (other)
   cir	circle scribe (other)
   cor	coral (other)
   cor_e	encrusting coral (other)
   cri	crinoid (other)
   cru	crustacean (other)
   cur_b	current bowed (current indicators)
   cur_ln	current lineations (current indicators)
   cur_sc	current scour (current indicators)
   cur_sm	current smooth (current indicators)
   cur_wn	current winnowed (current indicators)
   dia	diatomaceous cover (other)
   dwd	drift weed (other)
   egg	egg case (other)
   els	elasmobranch (other)
   fan_bg	bushy golden gorgonian (other)
   fan_o	other gorgonian (other)
   fan_p	purple gorgonian (other)
   fan_r	red gorgonian (other)
   ff	flat fish (other)
   fls	featureless (current indicators)
   ftw	feather worm (other)
   gor_e	erect progonian (other)
   gor_p	prostrate gorgonian (other)
   gst	gastropod (other)
   hum	biotrubated/hummocky (burrow type)
   inv	invertebrate (other)
   kel	kelp - not obscuring (other)
   lb	large burrow (burrow type)
   lfy	scattered leaf (other)
   met	metridium anenome (other)
   mnd	mound (other)
   ob	other burrow (burrow type)
   oct	octopus (other)
   pg	pit gentle (pit type)
   pn	pennatulid (other)
   pn_fsp	fat sea pen (other)
   pn_ft	pennatulid - feather (other)
   pn_sw	sea whip (other)
   poo	fecal coil (other)
   psh	pit sharp (pit type)
   pu	pit undefined (pit type)
   rf	round fish (other)
   rp_a	asymmetrical ripple (bedform type)
   rp_c	confused ripple (bedform type)
   rp_d	degraded ripple (bedform type)
   rp_m	mega ripple (bedform type)
   rp_oc	oscillating ripple (bedform type)
   rp_or	other ripple (bedform type)
   rp_sh	sharp ripple (bedform type)
   rp_su	subtle ripple (bedform type)
   rx_bb	brocken/blocky (rock type)
   rx_f	fractured rock (rock type)
   rx_i	rock island (rock type)
   rx_s	sedimentary rock (rock type)
   rx_sb	outsized clast (rock type)
   rx_t	talus (rock type)
   sar	sardine/anchovy (other)
   sb	small burrow (burrow type)
   scu	sea cucumber (other)
   scu_c	california cucumber (other)
   scu_w	warty cucumber (other)
   sed_w	sediment wave (current indicators)
   sh_db	shell debris (other)
   spg_e	encrusting sponge (other)
   spg_s	sololitary sponge (other)
   sq	squid (other)
   st_ba	basket star (other)
   st_br	brittle star (other)
   st_o	star other (other)
   st_s	sand star (other)
   tbw	tube worm (other)
   tck	track/trail (other)
   trf	turf (other)
   ur_di	deep water irregular urchin (other)
   ur_f	fragile urchin (other)
   ur_pr	purple/red urchin (other)
   ur_r	urchin regular (other)
   ur_w	white urchin (other)
   vh	high visibility (visibility)
   vm	moderate visibility (visibility)
   vn	nephloid visibility (visibility)
   vp	poor visibility (visibility)

   B2

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B3

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B4

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B5

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B6

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B7

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B8

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B9

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B10

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B11

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B12

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B13

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B14

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B15

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B16

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B17

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   MAJDES

   major sediment type (Source: This study.)

   Value	Definition
   boulder	boulder (maj, min)
   CHECK- location to review video	CHECK- location to review video (maj, min)
   cobble	cobble (maj, min)
   gravel	gravel (maj, min)
   INTERFACE- change in seafloor type	INTERFACE- change in seafloor type (maj, min)
   kelp - not obscuringp_cvr	kelp forest coverage (maj, min)
   mud	mud (maj, min)
   rock	rock (maj, min)
   sand	sand (maj, min)
   und	UNDEFINED- seafloor could not be seen/determined (maj, min)

   MINDES

   minor sediment type (Source: This study.)

   Formal codeset
   Codeset Name:	Sediment type
   Codeset Source:	Attribute MAJ in this metadata record.

   SLOPEDES

   qualitative description of slope (Source: This study.)

   Value	Definition
   extreme relief	extreme relief (slope)
   low relief	low relief (slope)
   slope relief	slope relief (slope)

   ABIO_CMPDE

   abiotic complexity (Source: This study.)

   Value	Definition
   a_hi	high abiotic complexity
   a_low	low abiotic complexity
   a_mod	moderate abiotic complexity
   a_trace	abiotic complexity trace

   BIO_CMPDES

   biotic complexity (Source: This study.)

   Value	Definition
   high biotic complexity	high biotic complexity
   low biotic complexity	low biotic complexity
   moderate biotic complexity	moderate biotic complexity
   trace biotic complexity	trace biotic complexity

   BIO_CVRDES

   biotic coverage (Source: This study.)

   Value	Definition
   barren benthic coverage	barren benthic coverage
   high benthic coverage	high benthic coverage
   low benthic coverage	low benthic coverage
   moderate benthic coverage	moderate benthic coverage

   B1DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Value	Definition
   algae	algae (other)
   anemone	anemone (other)
   burrowing anemone	burrowing anemone (other)
   sand rose anemone	sand rose anemone (other)
   anthropogenic fish gear	anthropogenic fish gear (anthropogenic)
   ath_gh	anthropogenic hole/gouge (anthropogenic)
   anthropogenic other	anthropogenic other (anthropogenic)
   anthropogenic trawl mark	anthropogenic trawl mark (anthropogenic)
   body trace	body trace (other)
   bivalve	bivalve (other)
   biotic plowing	biotic plowing (other)
   brachiopod	brachiopod (other)
   tool mark	tool mark (other)
   cb_h	crab holothurian (other)
   other crab	other crab (other)
   spider crab	spider crab (other)
   chck	CHECK! (other)
   circle scribe	circle scribe (other)
   coral	coral (other)
   coral_e	encrusting coral (other)
   crinoid	crinoid (other)
   crustacean	crustacean (other)
   current bowed	current bowed (current indicators)
   current lineations	current lineations (current indicators)
   current scour	current scour (current indicators)
   current smooth	current smooth (current indicators)
   current winnowed	current winnowed (current indicators)
   diatomaceous cover	diatomaceous cover (other)
   drift weed	drift weed (other)
   egg case	egg case (other)
   elasmobranch	elasmobranch (other)
   bushy golden gorgonian	bushy golden gorgonian (other)
   other gorgonian	other gorgonian (other)
   pit undefinedrple gorgonian	purple gorgonian (other)
   red gorgonian	red gorgonian (other)
   low relief fish	flat fish (other)
   featureless	featureless (current indicators)
   feather worm	feather worm (other)
   erect progonian	erect progonian (other)
   prostrate gorgonian	prostrate gorgonian (other)
   gastropod	gastropod (other)
   hum	biotrubated/hummocky (burrow type)
   invertebrate	invertebrate (other)
   kelp - not obscuring	kelp - not obscuring (other)
   large burrow	large burrow (burrow type)
   scattered leaf	scattered leaf (other)
   metridium anemoneridium anemone	metridium anenome (other)
   mound	mound (other)
   other burrow	other burrow (burrow type)
   octopus	octopus (other)
   pit gentle	pit gentle (pit type)
   pennatulid	pennatulid (other)
   pennatulid_fsp	fat sea pen (other)
   pennatulid_ft	pennatulid - feather (other)
   pennatulid_sw	sea whip (other)
   fecal coil	fecal coil (other)
   pit sharp	pit sharp (pit type)
   pit undefined	pit undefined (pit type)
   round fish	round fish (other)
   asymmetrical ripple	asymmetrical ripple (bedform type)
   confused ripple	confused ripple (bedform type)
   degraded ripple	degraded ripple (bedform type)
   mega ripple	mega ripple (bedform type)
   oscillating ripple	oscillating ripple (bedform type)
   other ripple	other ripple (bedform type)
   sharp ripple	sharp ripple (bedform type)
   subtle ripple	subtle ripple (bedform type)
   rx_bb	brocken/blocky (rock type)
   fractured rock	fractured rock (rock type)
   rock island	rock island (rock type)
   sedimentary rock	sedimentary rock (rock type)
   sedimentary rockb	outsized clast (rock type)
   talus	talus (rock type)
   sar	sardine/anchovy (other)
   small burrow	small burrow (burrow type)
   sea cucumber	sea cucumber (other)
   sea cucumber_c	california cucumber (other)
   sea cucumber_w	warty cucumber (other)
   sediment wave	sediment wave (current indicators)
   shell debris	shell debris (other)
   encrusting sponge	encrusting sponge (other)
   solitary sponge	sololitary sponge (other)
   squid	squid (other)
   basket star	basket star (other)
   brittle star	brittle star (other)
   star other	star other (other)
   sand star	sand star (other)
   tube worm	tube worm (other)
   tck	track/trail (other)
   turf	turf (other)
   deep water irregular urchin	deep water irregular urchin (other)
   fragile urchin	fragile urchin (other)
   ur_pr	purple/red urchin (other)
   urchin regular	urchin regular (other)
   white urchin	white urchin (other)
   high visibility	high visibility (visibility)
   moderate visibility	moderate visibility (visibility)
   nephloid visibility	nephloid visibility (visibility)
   poor visibility	poor visibility (visibility)

   B2DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B3DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B4DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B5DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B6DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B7DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B8DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B9DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B10DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B11DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B12DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B13DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B14DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B15DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B16DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   B17DES

   Type of seafloor feature observed in streaming video image, in order of data entry (first feature observed stored in B1, second in B2, and so on). (Source: This study.)

   Formal codeset
   Codeset Name:	Observed seafloor features
   Codeset Source:	Attribute B1 in this metadata record.

   Entity_and_Attribute_Overview:

   
   VIDEODES.PAT - point attributes
   
   COLUMN   ITEM NAME        WIDTH OUTPUT  TYPE N.DEC  ALTERNATE NAME
      25  JD                     8    16     F      3
      33  UTC                   11    11     C      -
      44  LAT                    8    16     F      3
      52  LON                    8    16     F      3
      60  DEP                    8    16     F      3
      68  ALT                    8    16     F      3
      76  HED                    8    16     F      3
      84  TMG                    8    16     F      3
      92  SOG                    8    16     F      3
     100  MAJ                    9     9     C      -
     109  MIN                    9     9     C      -
     118  SLOPE                  9     9     C      -
     127  ABIO_CMP               9     9     C      -
     136  BIO_CMP                9     9     C      -
     145  BIO_CVR                9     9     C      -
     154  B1                     9     9     C      -
     163  B2                     9     9     C      -
     172  B3                     9     9     C      -
     181  B4                     9     9     C      -
     190  B5                     9     9     C      -
     199  B6                     9     9     C      -
     208  B7                     9     9     C      -
     217  B8                     9     9     C      -
     226  B9                     9     9     C      -
     235  B10                    9     9     C      -
     244  B11                    9     9     C      -
     253  B12                    9     9     C      -
     262  B13                    9     9     C      -
     271  B14                    9     9     C      -
     280  B15                    9     9     C      -
     289  B16                    9     9     C      -
     298  B17                    9     9     C      -
     307  B18                    9     9     C      -
     316  B19                    9     9     C      -
     325  B20                    9     9     C      -
     334  B21                    9     9     C      -
     343  B22                    9     9     C      -
     352  B23                    9     9     C      -
   
   
     Table of observed seafloor features
   
     maj, min
       boulder - boulder
       check - CHECK- location to review video
       cobble - cobble
       gravel - gravel
       int - INTERFACE- change in seafloor type
       kelp_cvr - kelp forest coverage
       mud - mud
       rock - rock
       sand - sand
       und - UNDEFINED- seafloor could not be seen/determined
     slope
       cliff - extreme relief
       flat - low relief
       slope - slope relief
     abiotic complexity
       a_hi - high abiotic complexity
       a_low - low abiotic complexity
       a_mod - moderate abiotic complexity
       a_trace - abiotic complexity trace
     biotic complexity
       b_hi - high biotic complexity
       b_low - low biotic complexity
       b_mod - moderate biotic complexity
       b_trace - trace biotic complexity
     biotic coverage
       cvr_b - barren benthic coverage
       cvr_h - high benthic coverage
       cvr_l - low benthic coverage
       cvr_m - moderate benthic coverage
     current indicators
       cur_b - current bowed
       cur_ln - current lineations
       cur_sc - current scour
       cur_sm - current smooth
       cur_wn - current winnowed
       fls - featureless
       sed_w - sediment wave
     anthropogenic
       ath_fg - anthropogenic fish gear
       ath_gh - anthropogenic hole/gouge
       ath_o - anthropogenic other
       ath_tw - anthropogenic trawl mark
     visibility
       vh - high visibility
       vm - moderate visibility
       vn - nephloid visibility
       vp - poor visibility
     bedform type
       rp_a - asymmetrical ripple
       rp_c - confused ripple
       rp_d - degraded ripple
       rp_m - mega ripple
       rp_oc - oscillating ripple
       rp_or - other ripple
       rp_sh - sharp ripple
       rp_su - subtle ripple
     rock type
       rx_bb - brocken/blocky
       rx_f - fractured rock
       rx_i - rock island
       rx_s - sedimentary rock
       rx_sb - outsized clast
       rx_t - talus
     burrow type
       hum - biotrubated/hummocky
       lb - large burrow
       ob - other burrow
       sb - small burrow
     pit type
       pg - pit gentle
       psh - pit sharp
       pu - pit undefined
     other
       alg - algae
       anm - anenome
       anm_b - burrowing anemone
       anm_s - sand rose anemone
       bdt - body trace
       biv - bivalve
       bpl - biotic plowing
       brc - brachiopod
       btw - tool mark
       cb_h - crab holothurian
       cb_o - other crab
       cb_s - spider crab
       chck - CHECK!
       cir - circle scribe
       cor - coral
       cor_e - encrusting coral
       cri - crinoid
       cru - crustacean
       dia - diatomaceous cover
       dwd - drift weed
       egg - egg case
       els - elasmobranch
       fan_bg - bushy golden gorgonian
       fan_o - other gorgonian
       fan_p - purple gorgonian
       fan_r - red gorgonian
       ff - flat fish
       ftw - feather worm
       gor_e - erect progonian
       gor_p - prostrate gorgonian
       gst - gastropod
       inv - invertebrate
       kel - kelp - not obscuring
       lfy - scattered leaf
       met - metridium anenome
       mnd - mound
       oct - octopus
       pn - pennatulid
       pn_fsp - fat sea pen
       pn_ft - pennatulid - feather
       pn_sw - sea whip
       poo - fecal coil
       rf - round fish
       sar - sardine/anchovy
       scu - sea cucumber
       scu_c - california cucumber
       scu_w - warty cucumber
       sh_db - shell debris
       spg_e - encrusting sponge
       spg_s - solitary sponge
       sq - squid
       st_ba - basket star
       st_br - brittle star
       st_o - star other
       st_s - sand star
       tbw - tube worm
       tck - track/trail
       trf - turf
       ur_di - deep water irregular urchin
       ur_f - fragile urchin
       ur_pr - purple/red urchin
       ur_r - urchin regular
       ur_w - white urchin
   
   

   Entity_and_Attribute_Detail_Citation: none

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Eleyne L. Phillips
   • Florence L. Wong

2. Who also contributed to the data set?

3. To whom should users address questions about the data?
   United States Geological Survey (USGS) Coastal and Marine Geology (CMG)
   Attn: Florence L. Wong
   Geologist, GIS Coordinator
   USGS, MailStop 999, 345 Middlefield Road
   Menlo Park, CA 94025-3561
   USA
   

   (650) 329-5327 (voice)
   (650) 329-5190 (FAX)
   fwong@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: 2004 (process 1 of 6)

   Ten hours and 7.3 line-km of seafloor video data were collected within the study area in 2004, out of 156 total hours and 365 line-km of the research cruise. Two video camcorders recorded oblique and vertical-looking video of the same field of view, in which either of the laser beam pairs provided scale. The vertical-looking data is annotated to include navigation, altitude, depth and time. RedHen Systems(TM) hardware/software recorded the GPS navigational data onto one of the audio tracks of both video systems, and comments spoken into a microphone onboard the survey vessel occupy the other audio track. The digital video were archived onto DVD using VOB/mpeg2 compression, preserving the audio track separation, and transferred onto external hard drives. RedHen System's MediaMapper(TM) program then read and imported the geospatial data into XML files. The Trackpoint-corrected navigational data replaced the original navigation using a timestamp correlation. These data locations were exported to GIS point shapefiles, providing geospatial markers for the videos and photographs in an ArcGIS project (Phillips, 2007).
   Seafloor images captured by a towed video camera were transmitted to the shipboard laboratory. Coded descriptions of the features observed on the video monitor were entered into a database with three programmable keypads (Anderson and others, 2008). More than 120 geologic and biologic attributes (such as seafloor composition, abiotic complexity, biotic complexity, biologic modifiers of the seafloor, and number of benthic fauna and demersal fish) were keyed during each 20- to 30-second observation period. Each observation consists of 6 mandatory attributes and as many secondary attributes as could be observed and noted. The string of attributes were recorded to a comma-delimited file with time stamps and geographic coordinates at the beginning and end of the observation.

   Date: 2007 (process 2 of 6)

   Edited data table: Gathered unique code entries from attribute table, reconciled mistyped entries.

   Date: 30-Mar-2009 (process 3 of 6)

   First draft of metadata created by florence using FGDCMETA.AML ver. 1.35 08/02/2000 on ArcInfo data set /we/florence/sanpedro/covs/videodes

   Date: 28-May-2010 (process 4 of 6)

   Metadata imported.

   Data sources used in this process:

   • d:\TEMP\xml297.tmp

   Date: 28-May-2010 (process 5 of 6)

   Metadata imported.

   Data sources used in this process:

   • d:\TEMP\xml2B8.tmp

   Date: 28-May-2010 (process 6 of 6)

   Dataset copied.

   Data sources used in this process:

   • Q:\sanpedro\covs\videodes

3. What similar or related data should the user be aware of?

   Phillips, Eleyne L., 2007, Exploring rippled scour depressions offshore Huntington Beach, CA: Master of Sciences thesis. University of California, Santa Cruz [unnumbered], University of California, Santa Cruz, Santa Cruz, California.

   Online Links:

   • <URL:https://pubs.usgs.gov/ds/552/docs/phillips_eleyne07.pdf>

   Other_Citation_Details: Phillips, 2007

   Anderson, T.J., Cochrane, G.R, Roberts, D.A., Chezar, H., and Hatcher, G., 2008, A systematic real-time method to characterize seafloor habitats and benthic macro-organisms - Habitat mapping with a side-scar sonar and towed came ra-sled, in Mapping the Seafloor for Habitat Characterization^M: Geological Association of Canada Special Paper 47.

   Online Links:

   • <http://www.gac.ca/publications/view_pub.php?id=190>

   Other_Citation_Details: p. 71-79

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

1. How well have the observations been checked?

   The seafloor attributes are values or descriptions determined during original shipboard video observations. The attributes have been edited for consistent terminology. There are no plans for review of video.

2. How accurate are the geographic locations?

   Navigation data were recorded for the ship using Differential Geographic Positioning System (DGPS). The layback, or the offset incurred by towing a sled, was determined using Trackpoint 2000 technology, an underwater acoustic ranging system. This Trackpoint navigation was spliced into the original DGPS navigation data to determine the location of the camera sled. Local variables such as transient currents were not factored in and may introduce uncertainties in the exact location of the observations.

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Complete.

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: None

1. Who distributes the data set? (Distributor 1 of 1)
   United States Geological Survey (USGS) Coastal and Marine Geology (CMG)
   Attn: Florence L. Wong
   Geologist, GIS Coordinator
   USGS, MailStop 999, 345 Middlefield Road
   Menlo Park, CA 94025-3561
   USA
   

   (650) 329-5327 (voice)
   (650) 329-5190 (FAX)
   fwong@usgs.gov
   

2. What's the catalog number I need to order this data set?

   USGS DS 552

3. What legal disclaimers am I supposed to read?

   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.

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	ARCE (version 9.3.1) ESRI shapefile Size: 0.139
     Network links:	<https://pubs.usgs.gov/ds/552/>

   • Cost to order the data: none

Who wrote the metadata?

Dates:

Last modified: 31-Aug-2009
Last Reviewed: 2009

Metadata author:

U.S. Geological Survey
Attn: Florence L. Wong
Menlo Park, California REQUIRED: 94025

650-329-5327 (voice)

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://www.esri.com/metadata/esriprof80.html>