AMAPPS Southeast Aerial Cruise Spring 2019
NOAA Southeast Fisheries Science Center (SEFSC)
Dias, L. and L. Garrison. 2019. AMAPPS Southeast Aerial Cruise Spring 2019. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/2036) on yyyy-mm-dd.
Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
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 New Jersey to the Florida Keys. The survey was conducted between 18 May and 24 June of 2019 aboard a NOAA Twin Otter aircraft at an altitude of 600 feet (183 m) and a speed of 110 knots. Survey tracklines were oriented perpendicular to the shoreline and latitudinally spaced 20 km apart. 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. A portion of the proposed tracklines off the southern coast of Georgia was not surveyed due to restricted airspace from military exercises.
The main goal of this survey was to assess the distribution and abundance of marine mammals and sea turtles in the US east coast.
Perpendicular distance to the animal is not publicly available.
The dataset is accompanied by transect (effort) data which is provided as a separate file.
Sightings included were detected by the forward team.
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
1 0-25% Cloudy
2 26-50% Cloudy
3 51-75% Cloudy
4 76-100% Cloudy
Glare (Glare intensity)
0 No Impairment
1 Slight Impairment
2 Moderate Impairment
3 Severe Impairment
2 Light Rain
3 Heavy Rain
Sun penetration (Sun pen)
Laura Aichinger Dias, Kevin Barry, Lance P. Garrison. . Southern leg of aerial abundance survey during May – June 2019: Southeast Fisheries Science Center.
Attributes described below represent those in the original dataset provided by the provider.
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
|Rays and sharks||0|
|Latitude||24.36 - 39.80|
|Longitude||-81.85 - -72.01|
|Coord. prec.||5 decimal digits|
|Data type||Animal sighting|
|Effort||YES (ID: 2037)|
|Sharing policy||CC-BY-NC (Minimum)|
|Also availalbe from||
|See metadata in static HTML|
|See metadata in FGDC XML|
|See download history / statistics|