AMAPPS Southeast Aerial Cruise Winter 2019-2020

NOAA Southeast Fisheries Science Center (SEFSC)

Dataset credit

NOAA Southeast Fisheries Science Center (SEFSC)


Primary contact Laura Dias NOAA Southeast Fisheries Science Center
Secondary contact Lance Garrison NOAA Southeast Fisheries Science Center
Data entry Ei Fujioka Duke University



As part of the AMAPPS program, the Southeast Fisheries
Science Center conducted an aerial survey on the
continental shelf waters of the US east coast, from
Virginia to the Florida Keys. The survey was conducted
between 7 December 2019 and 25 January 2020 aboard a NOAA
Twin Otter aircraft. Survey tracklines were oriented
perpendicular to the shoreline and latitudinally spaced
km apart. The main goal of this survey was to assess the
distribution and abundance of marine mammals and sea
turtles in the US east coast. The survey was designed for
analysis using Distance sampling and a two-team
(independent observer) approach to correct for perception
bias in resulting abundance estimates. Due to unfavorable
weather conditions (mainly fog and heavy winds)
the survey the northernmost area surveyed was off the
Virginia coast. In addition, from northern South Carolina
to VA, several segments of the proposed tracklines were
not surveyed due to military exercises being conducted
over the area.


The main goal of this survey was to assess the distribution
and abundance of marine mammals and sea turtles in the US
east coast.

Supplemental information

Perpendicular distance to the animal is not publicly

The dataset is accompanied by transect (effort) data
is provided as a separate file.
Sightings included were detected on-effort by the forward
team only; you may request the full dataset and sightings
including opportunistic ones directly to the provider.

Environmental Attribute Codes
Beaufort Sea state
0 Calm, mirror like seas
1 Waves <1ft, rippled surface
2 Small wavelets (<2 ft), no white caps
3 Large wavelets (<3ft), scattered white caps
4 Swell 3-4 ft, numerous white caps
5 Swell >5 ft, many white caps, some spray
6 Swell >10 ft, white caps everywhere, spray
0 Clear
1 0-25% Cloudy
2 26-50% Cloudy
3 51-75% Cloudy
4 76-100% Cloudy
5 Overcast
Glare (Glare intensity)
0 No Impairment
1 Slight Impairment
2 Moderate Impairment
3 Severe Impairment
0 Clear
1 Mist
2 Light Rain
3 Heavy Rain
0 Poor
1 Fair
2 Moderate
3 Good
4 Excellent
0 No
1 Yes
0 No
1 Yes
Sun penetration (Sun pen)
0 Poor
1 Fair
2 Good
3 Excellent
0 Poor
1 Fair
2 Good
3 Excellent


Laura Aichinger Dias, Jesse Wicker, Kevin Barry, Lance P. Garrison. Southern leg of aerial abundance survey during December 2019 – January 2020: Southeast Fisheries Science Center. To be added.



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 described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)Description
oidUnique ID number (generated by OBIS-SEAMAP)
effortidEffort ID
oid_origOID assigned by provider
typeType (Mammal or Turtle)
comnameSpecies common name
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
individualcountIndividual count
latitudeLatitude in decimal degrees (WGS84)
longitudeLongitude in decimal degrees (WGS84)
perpendiculardistancePerpendicular distance to the animal (m)
eventdateDate and time of the sighting at local time
transectTransect No.
beaufortBeaufort sea state
cloudcoverCloud cover code
glareGlare intensity code
weatherWeather code
conditionsOverall conditions code
hazeHaze presence
fogFog presence
sunpenSun penetration code
turbidityTurbidity code
tripidTrip ID
platformvltsAlways A (Airplane)
oneffortFlag (Y/N) to indicate on effort.
observationheightAltitude of aircraft in feet above sea level in feet
platformspeedSpeed of the platform in knots
sighttypeSighting type ("F")
datasetidDataset ID by provider
datasetnameDataset name by provider
eventdatetimezoneThe time zone of the observation event (UTC)
geomGeometry field added by OBIS-SEAMAP
Marine mammals102
Sea turtles347
Rays and sharks0
Other species0
Non spatial0
Non species0
Date, Begin2019-12-07
Date, End2020-01-24
Temporal prec.111111
Latitude24.47 - 36.30
Longitude-81.87 - -74.65
Coord. prec.5 decimal digits
Data typeAnimal sighting
EffortYES (ID: 2054)
Traveled (km)6,075
Effort hours32
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