Pete Dartnell
Jamie Conrad
Nadine Golden
Eleyne Phillips
Mike Boyle
Brian Edwards
Merit McCrea
2013
z107sc_video_observations
vector digital data
Nadine E. Golden
2013
California State Waters Map Series Data Catalog
database
Data Series
DS 781
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/ds/781/
Samuel Y. Johnson
Peter Dartnell
Guy R. Cochrane
Nadine E. Golden
Eleyne L. Phillips
Andrew C. Ritchie
Rikk G. Kvitek
H. Gary Greene
Lisa M. Krigsman
Charles A. Endris
Kevin B. Clahan
Ray W. Sliter
Florence L. Wong
Mary M. Yoklavich
William R. Normark
2012
California State Waters Map Series--Hueneme Canyon and vicinity, California
map
Scientific Investigations Map
SIM 3225
Reston, VA
U.S. Geological Survey
https://pubs.usgs.gov/sim/3225/
This part of DS 781 presents video observations from cruise Z107SC for the Santa Barbara Channel region and beyond in southern California. The vector data file is included in "z107sc_video_observations.zip," which is accessible from https://pubs.usgs.gov/ds/781/video_observations/data_catalog_video_observations.html.
Some of the video observations from cruise Z107SC 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 three future California State Waters Map Series SIMs of the region (namely, the Mugu Canyon and Vicinity, Offshore of Coal Oil Point, and Offshore of Gaviota map areas).
Between 2006 and 2007, the seafloor in the Mugu Canyon and Vicinity, Hueneme Canyon and Vicinity, Offshore of Coal Oil Point, and Offshore of Gaviota 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.
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.
Information about the data collection field activity Z-1-07-sc is at
http://walrus.wr.usgs.gov/infobank/z/z107sc/html/z-1-07-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.
20070626
20070715
ground condition
As needed
-120.296705
-119.127344
34.449593
34.065623
Global Change Master Directory (GCMD)
Earth Science > Biosphere > Aquatic Ecosystems > Marine Habitat
ISO 19115 Topic Category
biota
geoscientificinformation
oceans
general
benthic habitat
CMGP
Coastal and Marine Geology Program
ecosystem
fisheries
U.S. Geological Survey
USGS
video sled observations
Geographic Names Information System (GNIS)
Mugu Canyon
Hueneme Canyon
Coal Oil Point
Gaviota
Santa Barbara Channel
Channel Islands National Marine Sanctuary
Southern California
Pacific Ocean
California
USA
None
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.
Pete Dartnell
U.S. Geological Survey, Coastal and Marine Geology
Physical Scientist
mailing and physical address
345 Middlefield Rd MS-999
Menlo Park
CA
94025-3561
USA
(650) 329-5460
(650) 329-5190
pdartnell@usgs.gov
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.
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.3500
Visual observations of variable unknown accuracy
Point features present.
Observations made without uniform protocol.
Highly variable, on the order of 10 meters.
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.
2008
Vector
Entity point
668
0.000001
0.000001
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
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.
USGS
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the ArcGIS features
DATE
mmddyyy. Month, day, year format
USGS
Date of observation
TIME
Greenwich Mean Time (GMT) also commonly referred to as Coordinated Universal Time (UTC).
USGS
Time of observation
LATITUDE
Latitude
USGS
34.103513
34.101858
Decimal degrees; Southern Hemisphere values are negative.
LONGITUDE
Longitude
USGS
-119.255818
-119.246218
Decimal degrees; Western Hemisphere values are negative.
HEADING
Bearing
USGS
The angle measured in degrees in a clockwise direction from the north line.
COURSE
Not currently used
USGS
Not currently used
SPEED
Not currently used
USGS
Not currently used
LOGENTRY
Comments and notes manually recorded during an observation.
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."
USGS
Rock
Exposed bedrock
USGS
Boulder
25.5 cm or greater
USGS
Cobble
Between 25.5 cm and 6.5 cm
USGS
Gravel
Between 6.5 cm and .2 cm
USGS
Sand
Between .2 cm and .00625 cm
USGS
Mud
.00625 cm or smaller
USGS
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."
USGS
Rock
Exposed bedrock
USGS
Boulder
25.5 cm or greater
USGS
Cobble
Between 25.5 cm and 6.5 cm
USGS
Gravel
Between 6.5 cm and .2 cm
USGS
Sand
Between .2 cm and .00625 cm
USGS
Mud
.00625 cm or smaller
USGS
SLOPE
A visual estimate of slope of the seafloor
USGS
Low
Flat seafloor
USGS
Medium
Not flat or extreme.
USGS
High
Extreme rock face.
USGS
ABIO_COMP
Abiotic complexity (rugosity) or roughness of the seafloor.
USGS
Low
No space available for potential refuge for both juvenile and adult species
USGS
Moderate
Some small holes and space available for potential refuge for both juvenile and adult species
USGS
High
Large holes and spaces available for potential refuge for both juvenile and adult species
USGS
BIO_COMP
Biologic Complexity (structure).
USGS
Trace
No plant cover available for potential refuge for both juvenile and adult species
USGS
Low
Small amount of plant cover available for potential refuge for both juvenile and adult species
USGS
Moderate
Some plant cover available for potential refuge for both juvenile and adult species
USGS
High
High volume of plant cover available for potential refuge for both juvenile and adult species
USGS
BIO_COVER
Biologic cover
USGS
Barren
Denotes no biological cover.
USGS
Low
Denotes small amount biological cover.
USGS
Moderate
Denotes some biological cover.
USGS
High
Denotes high volume biological cover is present.
USGS
ALG
algae
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
AMP_TB
amphipod tubes
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ANM_B
burrowing anemone
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ANM_M
metridium
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ANM_O
other anemone
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ANM_SR
sand rose anemone
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ART_O
arthropod
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ATH_FG
fishing gear
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ATH_O
anthropogenic detritus
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ATH_T
trawl mark
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
B_L
large burrow
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
B_O
other burrow
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
B_S
small burrow
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
BD_TR
body trace in sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
BIV
bivalve
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
BR_R
red brittle star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
BR_W
white brittle star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
BUBB
bubbles (gas)
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
BYZ
bryozoans
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CB_B
box crab
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CB_G
galatheid crab
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CB_H
hermit crab
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CB_S
spider crab
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CIR
circle scribe (current effects on sediment)
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
COR_A
articulated coral
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
COR_E
encrusting coral
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
COR_O
other coral
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CR_BO
current-bowed organism
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CR_L
current lineation in sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CR_O
other current indicators
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CR_SC
current scour in sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CR_SM
current smoothing of sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CRI
crinoid
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CRUST_O
other crustacean
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CUC
sea cucumber
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
CUC_W
warty sea cucumber
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
D_CVR
diatom cover
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
DF_WD
detached algae or kelp
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EC_DB
deep, burrowing urchin
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EC_P
purple urchin
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EC_SB
shallow burrowing urchin
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EC_SD
sand dollar
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EC_U
regular urchin
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EC_W
white urchin
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EGG_M
mollusc egg case
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
EGG_R
chondrichthes egg case
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
ELS
elasmobranch
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
FF
flat fish
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
FTLS
featureless seafloor
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_BG
brown/green gorgonian
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_E
erect gorgonian
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_O
other gorgonian
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_P
prostrate gorgonian
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_PR
purple gorgonian
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_R
red gorgonian
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_SW
sea whip
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
G_SWS
sea whip stub
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
GSP
gastropod
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
GSP_H
sea hare
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
HMK
biogenically hummocky seafloor
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
HYD
hydroid
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
INV_O
other invertebrate
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
KLP
kelp
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
KLP_CVR
complete obstruction of seafloor by kelp
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
LOB
lobster
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
MND
mound of sediment, generally associated with burrowing
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
OCT
octopus
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
OCT_D
octopus doflenii
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
OCT_R
octopus rubescens
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
P_G
gentle pit
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
P_O
other pit
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
P_S
sharp pit
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
PM
biogenic plowing of sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
PN_O
other pennatulid
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
PN_SP
sea pen (fleshy)
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
POO
fecal coil
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RF
other fish
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RF_S
sebastomus
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_A
asymmetrical ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_C
confused ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_D
degraded ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_M
megaripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_O
other ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_OC
oscillatory ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_S
subtle ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_SH
sharp-crested ripples
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RP_SW
sediment wave
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RX_F
fractured rock
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RX_I
rock island
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RX_S
sedimentary rock
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RX_T
rock talus
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RX_X
broken blocky rock
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
RZC
razor clam
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SB_C
unknown
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SC_C
scattered cobbles
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SC_LF
single-leaved algae
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SC_SH
scattered shell
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_BR
brittle star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_BS
basket star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_BT
bat star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_L
luidea
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_M
mediaster
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_O
other sea star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_P
pycnopodia
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_RB
red brittle star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_S
sand star
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_WI
white brittle star in sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SF_WO
white brittle star on sediment
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SHP
shrimp
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SP_E
encrusting sponge
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SP_O
orange sponge
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SP_S
solitary sponge
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SP_T
three-dimensional sponge
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
SQD
squid
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
STH_G
unknown
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
TM
tool mark
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
TR_MND
tar mound
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
TRF
turf (algal/diatom coverage of sediment)
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
TT
tracks/trails in sediment (biogenic)
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
TUN
tunicate
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
UF
unknown fish
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
VH
high visibility
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
VP
poor visibility
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
WRM_F
feather worm
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
WRM_T
tube worm
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
YOY
young of year
USGS
0
Denote absence of the species or feature.
USGS
1
Denote presence of the species or feature.
USGS
Depth
Depth Value
USGS
0.00
-300.00
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).
USGS
1
Smooth sediment
USGS
2
Mixed sediment and smooth rock
USGS
3
Rugose boulder and rock
USGS
LINE
Video observation camera line.
USGS
Name or number of camera line
TAPE
MiniDV tape numbered consecutively throughout cruise.
USGS
Name or number of tape
U.S. Geological Survey, Coastal and Marine Geology
Nadine Golden
Geographer
mailing and physical address
USGS, 400 Natural Bridges Dr
Santa Cruz
CA
95060-5792
USA
(831) 460-7530
(831) 427-4748
ngolden@usgs.gov
Downloadable Data
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.
20110415
2011
U.S. Geological Survey, Coastal and Marine Geology
Nadine Golden
Geographer
mailing and physical address
USGS, 400 Natural Bridges Dr
Santa Cruz
CA
95060-5792
(831) 460-7530
(831) 427-4748
ngolden@usgs.gov
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
None