Ecological Baseline Studies of the U.S. Outer Continental Shelf Option Year 1
APEM, Normandeau Associates

Dataset credit

Bureau of Ocean Energy Management (BOEM), Normandeau
Associates Inc., APEM Ltd.


Primary contact Michelle Vukovich Normandeau Associates, Inc.
Data entry Ei Fujioka Duke University



Normandeau Associates, Inc., and APEM Inc. (Team) have
been contracted by BOEM to complete quarterly high-
altitude aerial digital surveys in a 12-month period. The
Team proposes to conduct the first survey in February
2018 and complete all four surveys in the 2018 calendar
The South Atlantic Survey area (SASA) is defined as the
area of the ocean off the coast of North and South
Carolina out to the -30-m contour line. The approximate
size of the area is 11,000 square nautical miles.
Transect surveys will cover a minimum of 5% of the SASA.
In addition, 10% of the total area within the Kitty Hawk,
Wilmington East, and Wilmington West Wind Energy Areas –
as well as the South Carolina–Grand Stand Call Area will
be surveyed.
The planned image resolution of all the imagery for the
project will be 1.5-cm ground sampling distance at the
surface of the ocean.

Option Year 1 includes four surveys of each these areas
from Jan/Feb 2018 to Dec 2018.



Supplemental information

The areas defined for survey were the South Atlantic
Survey Area (SASA), Kitty Hawk (KH) Wind Energy Area
(WEA), Wilmington East (WE) WEA, Wilmington West (WW)
WEA, Grand Stand Call Area (GSCA), Charleston Call Area
(CCA), and fish spawning areas SMZ 51 (A51) and SMZ 53
(A53). SASA surveys are linear transects flown in a saw
tooth pattern out to the -30-m contour line along the
entire South Carolina and North Carolina coasts. These
surveys included the CCA, A51 and A53 areas. The overlap
portion of SASA and CCA is designated “SASA,CCA”; the
overlap portion of SASA and A51 is designated “SASA,A51”;
and the overlap portion of SASA and A53 is designated
“SASA,A53”.The WEAs and GSCA areas are grid surveys
through the area plus a 1NM buffer. GSCA and WW share
survey overlap and that overlap portion is designated as
“GSCA,WW”.The SASA survey area overlaps portions of CCA,
A51 and A53 areas and overlapped areas are designated by
the area name “SASA,CCA”; “SASA,A51”; or “SASA,A53”. GSCA
and WW also share survey overlap and that area is
designated by “GSCA,WW”.DISCLAIMERStudy concept,
oversight, and funding were provided by the US Department
of the Interior, Bureau of Ocean Energy Management
(BOEM), Environmental Studies Program, Washington, DC,
under Contract Number M17PC00010; Order M17PD00063. This
report has been technically reviewed by BOEM, and it has
been approved for publication. The views and conclusions
contained in this document are those of the authors and
should not be interpreted as representing the opinions or
policies of the US Government, nor does mention of trade
names or commercial products constitute endorsement or
recommendation for use.




Attributes described below represent those in the original dataset provided by the provider.
Only minimum required attributes are visible and downlodable online. Other attributes may be obtained upon provider's permission unless otherwise noted below.

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

Attributes in dataset provided

Attribute (table column)Description
oidUnique ID number (generated by OBIS-SEAMAP)
snag_idUnique ID for target Each entry is 1 individual (except for Fish Shoals which is one entry per 1 shoal encompassing uncounted number of fish)
surveySurvey name
datetakenDate image taken, in local time (EST)
timetakenTime image taken, in local time (EST)
id_type1st level of identification
id_subtype2nd level of identification Target group type if identified Needs id = Target has not been reviewed for ID Unid. Type = Target has been reviewed and cannot be identified to a subtype
id_species3rd level of identification Common Name if identified Needs id = Target has not been reviewed for ID species unknown = Target has been reviewed and cannot be identified to species
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
obs_countNumber of animals (always 1) added by OBIS-SEAMAP
id_confidConfidence level of ID: Definite Probable Possible blank = not rated
lengthcmGenerally, head-to-tail length in cm. This is NOT turtle carapace. Ignored for non-animal & fish shoal. NULL = not determined
wingspancmWing span tip to tip in cm. 0 = wings are folded up/bird is sitting on surface. Applies to avian only
surfaceDepth rating. blank = not rated
headingdegDirection of target (in degrees)
listedYes = Species/Species Group status is listed (as of 2016)
parentimgImage name where target is located
latitudeLatitude in decimal degrees (WGS84)
longitudeLongitude in decimal degrees (WGS84)
sargassumSargassum is present in image with target. 1 = present; 0 = not present; blank = not evaluated
areaArea - specific
genareaArea - general
scientificScientific name if species is identified
familyFamily if species is identified
airtemp_cAir Temperature (°Celsius)
windspeedWind Speed (kts)
winddirectWind Direction (degrees)
pressurePressure (inHg)
visibilityVisibility (greater than, km)
seastateSea State (mean values) 0 Calm (Glass) 1 Calm (Rippled) 2 Smooth 3 Slight 4 Moderate
glintGlint Percentage (highest %)
turbidityTurbidity visual estimation (mean values) 0 Clear 1 Slightly Turbid 2 Moderately Turbid 3 Highly Turbid
precipduraPrecipitation duration in time (minutes)
cloudClound Cover Percentage (highest %) 0-10% Clear 11-15% Scattered 51-94% Broken 95-100% Overcast
geomGeometry field added by OBIS-SEAMAP
Marine mammals1,630
Sea turtles1,359
Rays and sharks5,787
Other species76,776
Non spatial0
Non species766
Date, Begin2018-01-31
Date, End2018-12-22
Temporal prec.111111
Latitude31.80 - 36.55
Longitude-80.77 - -74.98
Coord. prec.4 decimal digits
Data typeAnimal sighting
Sharing policy CC-BY (All)
Also availalbe from iOBIS
GBIF (planned)
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