Sightings for AN/AQS-20 Sonar Aerial Monitoring in the NSWC PCD Study Area from July 2011 and May 2012

HDR Environmental, Operations and Construction, Inc.

Dataset credit

The U.S. Navy Marine Species Monitoring Program


Primary contact Jennifer Latusek-Nabholz HDR Environmental, Operations and Construction, Inc.
Data entry Ei Fujioka Duke University


Latusek-Nabholz, J. 2013. Sightings for AN/AQS-20 Sonar Aerial Monitoring in the NSWC PCD Study Area from July 2011 and May 2012. Data downloaded from OBIS-SEAMAP ( on yyyy-mm-dd.


Three aerial marine-species monitoring surveys for an AN/AQS-20 sonar research, development, test, and evaluation (RDT&E) event occurred, with daily marine-species surveys from 05 July through 09 July 2011, 23 July through 26 July 2011, and 20 May through 26 May 2011 off the coast of Florida in the Naval Surface Warfare Center Panama City Division (NSWC PCD) Study Area in the Gulf of Mexico (GOM). The AN/AQS-20 is a high-frequency active sonar (HFAS) system used in mine countermeasures detection.


U.S. Navy aerial monitoring during Q-20 sonar testing.

Supplemental information

References will be available when they are ready.




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
oiddefinition not provided
sighting_noSighting No
eventEvent (pre-event, during event or post-event)
obs_dateDate of the sighting (local time zone)
sp_obsSpecies code recorded
sp_tsnTaxonomic Serial Number added by OBIS-SEAMAP
obs_countbest estimate of number of animals
grp_highHigh estimate of number of animals
grp_lowLow estimate of number of animals
calvesNumber of calves
obs_timeTime of the sighting (local time zone)
stop_timeStop time of the sighting
beaufortBeaufort Sea State
latitudeLatitude in decimal degrees
longitudeLongitude in decimal degrees
vert_angleVertical angle
distance_orgDistance off Track in original text format
distanceDistance off Track (km)
bottom_depthBottom Depth (m) estimated by mapped figures. (not a precise estimate)
behaviorBehavioral summary
geomdefinition not provided
Marine mammals58
Sea turtles308
Rays and sharks2
Other species8
Non spatial0
Non species0
Date, Begin2011-07-05
Date, End2012-05-26
Temporal prec.111111
Latitude29.75 - 30.12
Longitude-86.19 - -85.71
Coord. prec.4 decimal digits
Data typeAnimal sighting
Traveled (km)0
Contr. throughNavy
Sharing policy CC-BY (All)
Shared with OBIS
GBIF (via DOI)
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See metadata in FGDC XML
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